Precision Hydrogen 1200cc - User Manual  

Extracted text

Precision Hydrogen 1200cc (All Models)
User Manual

Copyright © Peak Scientific Instruments Ltd 2025 — Precision Hydrogen 1200cc User Manual Rev 16 RSID 2379 EN —14/01/2025

Contents
Change History
How to use this Manual
Introduction
Health and Safety Data
Deioniser Resin
Warranties and Liabilities
Safety Notices
Symbols
Safety Notice to Users
Attention - Important Notice to All Users
EU Declaration of Conformity
UK Declaration of Conformity
WEEE Compliance Statement
CSA Compliance Statement
European Union (EU) and United Kingdom (UK) Class A Compliance statement
Industry Canada Class A emission compliance statement
Korea Communications Commission (KCC) statement
Technical Specification
Precision Hydrogen
Principle of Operation
General Safety
Generator Safety Features
Unpacking
Fittings Kit Contents
Unpacking Instructions
Transit Plug Removal
Installation
Location
Generator Overview
General Dimensions
Unit Controls
Rear Connections
Tubing
H2 Ventilation
Water Quality
Automatic Filling
Draining the Water Tank
Water Usage
Electrical Connection
Start-up Sequence
Liquid Leak Detectors
Gas Traps
H2 Detector Option
Expanding Capacity
Rear Connections
Switching the Unit Off
Cleaning
Deioniser Column Replacement
Precision Hydrogen 1200cc
Service Requirements
Service Schedule
Troubleshooting

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Change History
Rev

Comment

Name

Date

1

Initial Release

Liam Couttie

09/02/2018

2

Transit Plugs Added

Liam Couttie

22/03/2018

3

Trace Model Information Added

Liam Couttie

23/07/2018

4

Cell Warranty Update

Liam Couttie

24/09/2018

5

Warranty Information Update

Liam Couttie

26/11/2018

6
7

Accreditation Update
Purity Update

Liam Couttie
Liam Couttie

05/11/2019
25/05/2021

8

Declarations Update

Cleo Denholm

31/08/2021

9

Fittings Kit Update

Liam Couttie

23/05/2022

10

Update

Liam Couttie

26/06/2023

11

Draining the Water Tank

Liam Couttie

26/07/2023

12

Declarations Update

Liam Couttie

02/10/2023

13

Specs Update

D Lai

18/01/2024

15

Teflon Removal

D Lai

27/12/2024

16

Part Number Change

C Denholm

14/01/2025

How to use this Manual
This manual is intended for end users and has been written so that it can either be
read as a step by step guide to installation and usage or as a reference document
where you can skip to the relevant information.
Users can refer to the contents page to find the relevant information.
Please review each of the following sections carefully.
Thank you for selecting Peak Scientific to meet your Gas Generation needs, and
should you require any further assistance or support please do not hesitate to contact
Peak Scientific or Peak Partner from which you purchased your Generator.

Page 3

Introduction
The Precision Hydrogen 1200cc has been developed to cater for the requirements of
GC instruments.
This generator provides a source of high purity hydrogen gas, suitable for carrier gas if
used in conjunction with carrier gas traps and detector gas.
Other features include:
•

Easy to use touch screen interface

•

Status indicative lighting feature

•

Stackable with other Precision units

•

Purities of up to 99.9995% (Standard) and 99.99999% (Trace).

The Precision Hydrogen 1200cc is based on proven technology, it produces hydrogen
by electrolysis using a Proton Exchange Membrane (PEM) cell. Moisture removal is
achieved by a maintenance free Pressure Swing Adsorption (PSA) dryer.
To ensure this generator model meets our high expectations with regards to reliability
and performance, we have tested this model extensively at our manufacturing plant
and in the field to ensure reliability and longevity of the system.

Page 4

Health and Safety Data
Deioniser Resin
This sheet to be retained by the ‘Health & Safety Officer’
The recipient of this Health & Safety Data sheet is required to ensure that all personnel
handling, using or likely to come into contact with the material are made aware of the
Health & Safety information contained herein.
General Description
Bag containing ion exchange resin. 60% Cation and 40% Anion by mass.
Chemical Components
Polystyrene divinylbenzene cation and ion exchange resin.
Form Solid beads
Flash Point N/A
Colour Tan
Ignition Temperature

427 °C (Estimated)

Odour None
Explosion Limits N/A
Decomposition Temperature Over 220 °C
Vapour Pressure @ 25 °C

17mm CFH @ 20 °C (Water)

Viscosity @ 25°C N/A
Solubility in Water

Negligible

Specific Gravity @ 25°C

1.1-1.3

pH @ 25 °C

7-9.5 in aqueous slurry

Eye Protection

Safety Glasses (BS2092C)

Storage

Store in a cool place above 0 °C, out of direct sunlight

Fire & Explosion Hazards
Toxic combustion products may include sulphur dioxide
and sulphur trioxide
Disposal
This product can be disposed as ordinary waste if local
regulations permit
Emergency & First Aid Procedures
Spillages
Floor may be slippery. Use care to avoid falls. Wear protective glasses.
Sweep up and transfer to containers for recovery and disposal.
Extinguishing Media
Carbon Dioxide (CO2), Water Fog and Dry Powder.
Fire Fighting and Protection
Wear HSE approved, pressure demand, self-contained breathing apparatus or
Page 5

equivalent.
First Aid
Skin Contact
Wash effected areas with soap and water. Consult doctor if irritation persists.
Eye Contact
Product can cause severe eye irritation. Flush eyes with large amounts of water for at
least 15 minutes. Consult a doctor if irritation persists.
Inhalation
This product should present no hazard if operated under normal conditions. If
irritation persists, move patient to fresh air.
Ingestion
If resin has been confined to the mouth, administer 250 ml. of water as a mouthwash.
Avoid swallowing. This product is considered non-hazardous if ingested in small
amounts; however, it is advisable to seek medical advice.
Toxicological Data
No toxicity data available on this product
Occupation exposure limits
STEL/TLV = None established.
Incompatible Materials (to avoid hazardous reactions)
Avoid contact with concentrated nitric acid and any other strong oxidising agents at
all times.

Page 6

Warranties and Liabilities
1. The Company warrants that it has title to the Goods.
2. Subject to the provisions of this clause the Company warrants that the Goods
shall comply in all material respects with any specification referred to in the Order
Confirmation (as the same may be amended) and shall, subject thereto, be free
from defects in material and workmanship for the lesser of a period of twelve
months from the date of delivery or thirteen months from the date of dispatch
from the factory.
3. Subject to the provisions of this clause the Company warrants that the Hydrogen
Cell shall comply in all material respects with any specification referred to in the
Order Confirmation (as the same may be amended) and shall, subject thereto, be
free from defects in material and workmanship for the period of three years from
the date of delivery.
4. Save as provided in this clause and except where the Goods are sold to a person
dealing as a consumer (within the meaning of the Unfair Contract Terms Act
1977) all warranties, conditions or other terms implied by statute or common
law are hereby expressly excluded save to the extent they may not be lawfully
excluded. When the Goods are sold to a consumer within the meaning of the Unfair
Contract Terms Act 1977 their statutory rights are not affected by the provisions of
this clause.
5. In the event of the Customer making a claim in respect of any defect in terms of
clause 2 hereof the Customer must.
1. Reasonably satisfy the Company that the Goods have been properly installed,
commissioned, stored, serviced and used and without prejudice to the generality
of the foregoing that any defect is not the direct or indirect result of lack of repair
and/or servicing, incorrect repair and/or servicing, use of wrong materials and/or
incorrect spare parts.
2. Allow the company to inspect the Goods and/or any installation and any
relevant packaging as and when reasonably required by the Company.
6. Subject to the Company being notified of any defect as is referred to in subclause 2 hereof within a reasonable time of it becoming apparent and subject
always to the terms of sub-clause 4 hereof, the Company shall, in its option, replace
or repair the defective Goods or refund a proportionate part of the Price. The
Company shall have no further liability to the Customer (save as mentioned in subclause 6 hereof).
7. The Company shall be liable to indemnify the Customer in respect of any claim
for death or personal injury to any person in so far as such is attributable to the
negligence or breach of duty of the Company or any failure by the Company to
comply with the provisions of sub-clause 2 hereof.
8. Save as provided in sub-clause 2 hereof the Company shall not be liable in respect
of any claim by the Customer for costs, damages, loss or expenses (whether direct,
indirect, consequential or otherwise) or indemnity in any respect howsoever arising
including, but not by way of limitation, liability arising in negligence (other than
pursuant to clause 6 above) that may be suffered by the Customer or any third
party.

Page 7

Safety Notices
Peak Scientific Instruments cannot anticipate every possible circumstance which
may represent a potential hazard. The warnings detailed within this manual refer to
the most likely potential hazards, but by definition cannot be all inclusive. If the user
employs an operating procedure, item of equipment or a method of working which
is not specifically recommended by Peak Scientific, the user must ensure that the
equipment will not be damaged or become hazardous to persons or property.

Symbols
This manual uses the following symbols to highlight specific areas important to the
safe and proper use of the Generator

WARNING

A WARNING notice denotes a hazard. It calls attention to an operating procedure,
process or similar, which if not correctly performed or adhered to, could cause
personal injury or in the worst case death. Do not proceed beyond a WARNING
notice until the indicated conditions are fully understood or met.

CAUTION

A CAUTION notice denotes a hazard. It calls attention to an operating procedure,
process or similar, which if not correctly performed or adhered to, could cause
damage to the generator or the application. Do not proceed beyond a CAUTION
notice until the indicated conditions are fully understood or met.
Caution, risk of electric shock. Ensure power to the generator has been removed
before proceeding.

Safety Notice to Users

WARNING

WARNING

WARNING

Page 8

These instructions must be read thoroughly and understood before
installation and operation of your Peak Precision Hydrogen Generator.
Use of the generator in a manner not specified by Peak Scientific MAY
impair the SAFETY provided by the equipment.
When handling, operating or carrying out any maintenance, personnel
must employ safe engineering practices and observe all relevant local
health and safety requirements and regulations. The attention of UK
users is drawn to the Health and Safety at Work Act 1974, and the
Institute of Electrical Engineers regulations.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment maybe
impaired.

Attention - Important Notice to All Users

WARNING

These instructions must be read thoroughly, section by section and
understood before installation and operation of your Peak Scientific
Hydrogen Generator. Please follow the appropriate safety standards
for handling hydrogen gas and other gases as determined by the laws
and regulations of your country.

Please save the product packaging for storage or future shipment of the generator.
1. For your own personal safety and to prevent accidental damage to your generator
please ensure that you read and understand our User Manual.
2. Do not store away the generator when not in operation . External water bottles
must be made of a dark coloured material in order to prevent biological growth
(available from Peak Scientific). It is recommended that you check the water
quality weekly to prevent biological growth developing in the tank and tubing.
Failure to do this will greatly reduce the life of the generator and render the 3 year
cell warranty void.
3. Do not place the external water bottle above the height of the generator. The
bottle may be placed at the same level or below the generator.
4. Use only high grade de-ionised water (1μS/cm or better). Failure to use the correct
quality water will invalidate the cell and system warranty. Do not attempt to
connect pressurised water to the generator.
5. Failure to maintain the Deioniser Cartridge as recommended will reduce the
operational life of your generator and render its 3 year cell warranty void.
6. Do not attach any additional tanks or gas cylinders to your generator without first
consulting Peak Scientific.
7. Ensure your entire installation, both pipe work and analysers, are completely gas
tight. Even minor leaks will affect the operation of your generator and generally
reduce its operational life.
8. Has your generator been correctly sized for your application? If in doubt, consult
your dealer or Peak Scientific.
9. Ensure the ambient temperature inside your laboratory does not rise above
35°C/95°F. Extremes of operating temperature will reduce cell life.

Page 9

EU Declaration of Conformity
We

Peak Scientific Instruments Ltd.

Of

Fountain Crescent, Inchinnan, Renfrewshire, PA4 9RE

Hereby declare that, this declaration of conformity is issued under the sole
responsibility of the manufacturer.
Equipment Type:

Hydrogen Generator

Model Designator:

Precision Hydrogen 1200cc (All Models)

To which this declaration relates, is in conformity with the following applicable EU
Directives, harmonized standards, and other normative requirements.
•

Low Voltage Directive 2014/35/EU
EN 61010-1: 2010/ A1:2019 Safety Requirements for Electrical Equipment for
Measurement,
Control and Laboratory Use.

•

Electromagnetic Compatibility Directive 2014/30/EU
EN 61326-1: 2013 Electrical Equipment for Measurement, Control and Laboratory Use
– EMC Requirements. (Class A)

•

Restriction on the use of certain hazardous substances in electronic equipment
(RoHS) Directive 2011/65/EU as amended by EU 2015/863.

Signed for and on behalf of Peak Scientific by
Signed:
Name:

Fraser Dunn

Position:

Design Engineering Manager

Peak Scientific Instruments ltd,
Inchinnan, Renfrew, Scotland, PA4 9RE, UK.
Date:

Page 10

24th February 2022

UK Declaration of Conformity
We

Peak Scientific Instruments Ltd.

Of

Fountain Crescent, Inchinnan, Renfrewshire, PA4 9RE

Hereby declare that, this declaration of conformity is issued under the sole
responsibility of the manufacturer.
Equipment Type:

Hydrogen Generator

Model Designator:

Precision Hydrogen 1200cc (All Models)

To which this declaration relates, is in conformity with the following applicable UK
Statutory Instruments, Standards and other normative requirements.
•

The Electrical Equipment (Safety) Regulations 2016 (SI 2016 / 1101) as amended.
BS61010-1:2010 / A1:2019 Safety Requirements for Electrical Equipment for
Measurement Control and Laboratory Use.

•

The Electromagnetic Compatibility Regulations 2016 (SI 2016 / 1091) as amended.
BS61326-1:2013 Electrical Equipment for Measurement , Control and Laboratory Use
– EMC Requirements. (Class A)

•

The Restriction of the Use of Certain Hazardous Substances in Electrical and
Electronic Equipment Regulations 2012 (SI 2012 / 3032) as amended.

Signed for and on behalf of Peak Scientific by
Signed:
Name:

Fraser Dunn

Position:

Design Engineering Manager

Peak Scientific Instruments ltd,
Inchinnan, Renfrew, Scotland, PA4 9RE, UK.
Date:

Page 11

24th February 2022

WEEE Compliance Statement
The Waste Electrical and Electronic Equipment (WEEE) Regulations SI 2013 No 3113
and or the Waste Electrical and Electronic Equipment (WEEE) Directive 2012/19/EU
apply to all electrical and electronic equipment placed on the market in the UK and EU
covered by the scope of regulations which can be found in the Government Guidance
Notes (PDF) produced by the Department for Business Innovation and skills for the UK
and here for Europe.
All PEAK products that are subject to the WEEE directive are compliant with the
WEEE marking requirement. Such products are marked with the “crossed-out wheelie
bin” symbol (shown below) in accordance with European standard EN50419. All
old electrical equipment can be recycled. Please do not dispose of any electrical
equipment (including those marked with this symbol) in general rubbish bins. Please
contact your dealer or distributor for clarity.

Page 12

CSA Compliance Statement
CSA Group (Canadian Standards Authority) is a Nationally Recognised Testing
Laboratory (NRTL), headquartered in Toronto Canada.
They are authorised to evaluate product to both their own and Underwriters Laboratory
(UL) standards and certify the product to be in compliance to the relevant standards.
Peak products are certified to the current in force revision of the following standards
in order to cover both Canadian and United States requirements for “Safety
Requirements for Electrical Equipment for Measurement, Control and Laboratory use,
Part 1: general Requirements”.
Canada:

CAN/CSA C22.2 No 61010-1-12

United States:

UL 61010-1

As a result the products covered by this statement are certified and listed by CSA
accordingly and are entitled to carry the CSA mark with both Canadian and United
States subscripts , as shown below on the product rating label.

Page 13

EMC Class A Compliance Statements
European Union (EU) and United Kingdom (UK) Class A Compliance
statement
This is a Class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.

FCC Class A Compliance Statement
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.

Industry Canada Class A emission compliance statement
This ISM device complies with Canadian ICES-001 (A).
Cet appareil ISM est conforme à la norme NMB-001 (A) du Canada.

Korea Communications Commission (KCC) statement

이 기기는 업무용(A급)으로 전자파적합기기로
서 판매자 또는 사용자는 이 점을 주의하시기
바라며, 가정외의 지역에서 사용하는 것을 목
적으로 합니다.
(This is electromagnetic wave compatibility equipment for business (Type A). Sellers
and users need to pay attention to it. This is for any areas other than home.)
Page 14

Technical Specification
Precision Hydrogen
Environment
1200cc

Minimum Operating Ambient Temperature
Maximum Operating Ambient Temperature
Maximum Altitude
Maximum Relative Humidity
Minimum Storage Temperature*
Maximum Storage Temperature*

1200cc Trace

10°C (50°F)
35°C (95°F)
2000 m
90% Non-Condensing
10°C (50°F)
25°C (77°F)

Generator Outlets
Max Flow Rate**
Purity
Gas outlet
Delivery pressure

1200 cc/min
99.9995%
99.99999%
1 x 1/8” Swagelok compression fitting
0-100 psi (0-6.9 bar)

Electrical Requirements
Voltage
Frequency
Current
Input Connection
Power Cord (Supplied)
Pollution Degree
Insulation Category

100-230VAC
50/60 Hz
10 A Max
C14 Connection
C13 socket to local connection (10A minimum)
2
I

General
Generator Dimensions cm (W x D x H)
Generator Weight
Shipping Crate Dimensions cm (W x D x H)
Shipping Weight
Heat Output
Water Purity Requirement

38.0 (14.9”) x 54.0 (21.2”) x 40.6 (15.9”)
31.5Kg (69.5 lbs)
54.0 (21.2”) x 70.0 (27.5”) x 49.0 (19.2”)
38 kg (83.8 lbs)
1000 BTU / Hr
<1.0µ Siemens/cm OR >1 Mohm-cm

* When taken out of storage the Generator should be allowed to acclimatize at room
temperature for a minimum of 3 hours before operation.
** All flow rates are stated in sccm at 273.15K and 1.01bar

Page 15

Principle of Operation
The Peak Scientific hydrogen generator produces high purity hydrogen gas
(H2). Hydrogen does not occur naturally on earth and must be formed via the
decomposition of other molecules, in this case via the splitting of water molecules
into hydrogen and oxygen in a process known as electrolysis.
The state of the art in water electrolysis is the Proton Exchange Membrane (PEM)
electrolyser. This technology was first described in the mid-1960s by General Electric
as a method for producing electricity for the Gemini Space Program and later adapted
for electrolysis. This process has been continually developed ever since. All Peak
Scientific hydrogen generators utilise PEM technology .
The most important element of the generator is the electrolyser cell where the
electrolysis reaction takes place. This consists of two electrodes (an anode and a
cathode), which are separated by the proton exchange membrane which gives the
technology its name. During operation, deionised water is fed to the anode of the
electrolysis cell where it is split into oxygen, protons and electrons with the aid of a
precious metal catalyst. The oxygen is vented to atmosphere from the generator. The
protons travel across the membrane and simultaneously the electrons travel around
the external electrical circuit. These protons and electrons then recombine at the
cathode of the electrolyser, again with the aid of a precious metal catalyst to produce
the hydrogen gas. The high purity of the hydrogen is assured by the membrane which
completely separates the hydrogen produced at the cathode from the oxygen being
produced at the anode. These processes are described by the following equations:
Cathode

2H+(aq) + 2e- = H2(g)

Anode

H2O(l) = ½O2(g) + 2H+(aq) + 2e-

Deionised water is critical to the operation of the system and must have a purity of
1 µS/cm or better to prevent damage to the membrane. Failure to use this grade of
deionised water will invalidate the 3 year cell warranty of the generator. The water
is automatically loaded (either at power up or periodically during operation) and
the rate at which the water is consumed depends on the amount of hydrogen being
produced.
A small amount of the electrical energy is lost as heat and this is removed from the
generator by the ventilation system.
The Peak Scientific hydrogen generator produces hydrogen on demand. By
maintaining the user’s pre-set pressure and using this as a reference value, the
generator will produce the precise amount of hydrogen required. As soon as the
demand ceases, no further hydrogen will be sent to the user’s application. During this
time bubbles may still be observed in the separating tank. This is due to the generator
maintaining its internal pressure and ensuring that clean, dry hydrogen is available
immediately on demand when the user requires it.

Page 16

General Safety
The generator only produces gas when the application places a demand on the unit.
The maximum quantity of hydrogen stored in the generator at any one time is 350cc
at a pressure of 6.9bar (100psi). The unit also meets the European Electromagnetic
Compatibility and Low Voltage Directives. The Generator is CE approved and has the
CE mark attached.
All of the Precision Hydrogen generators have the necessary control circuitry, both
electrical and mechanical, to ensure the shutdown of the instrument in the event of a
fault or faults occurring.

Page 17

Generator Safety Features
The Precision Hydrogen range have the following safety features to ensure safe and
reliable operation:
1. To avoid any build up of hydrogen from leaks inside the unit; the generator features
forced air ventilation. This ensures that a hydrogen / oxygen mixture cannot form
inside the generator.
2. On power-up the generator self checks for internal leaks and if required it will
shutdown at the end of the System Check informing the operator with a visual and
audible alarm.
3. The generator will detect any hydrogen leaks that occur within the generator, the
user’s application and gas lines. In the event of a major leak the generator will
automatically shut down within 20 minutes.
4. The hydrogen pressure inside the generator should only reach a maximum of 7.5
bar (110psi) and this is controlled in two ways:
a. Gas pressure is monitored and controlled electronically by a pressure sensor
b. A mechanical pressure switch (Fail Safe) will electrically isolate the hydrogen cell
should the internal pressure reach 9 bar (130psi).
5. When the generator is in alarm status the following occurs:
a. The current to the cell is stopped so no hydrogen is generated therefore
preventing a hazardous situation.
b. The over pressure relief valve opens allowing the unit to depressurise.
c. An audible alarm sounds and a visual alarm, relevant to the fault condition, is
displayed. The generator can sense for internal and external leaks, excessive gas
demand and lack of water.

Page 18

Unpacking
Although Peak Scientific takes every precaution with safe transit and packaging, it is
advisable to fully inspect the unit for any sign of transit damage.
Check ‘SHOCKWATCH’ and ‘TIP-N-TELL’ labels for signs of rough handling prior to
unpacking.

Any damage should be reported immediately to the carrier and Peak Scientific or the
Peak Partner from where the unit was purchased.
Follow the unpacking instructions posted on the side of the crate. It will require two
people to remove the unit from the shipping crate and to manoeuvre the generator
onto the bench.
Please save the product packaging for storage or future shipment of the generator.
Note: Included with the Generator is a “Fittings Kit” containing mains power leads
for UK, EU & US and also all the required fittings and warranty registration card. Be
careful not to discard these with the packaging.

Page 19

Fittings Kit Contents
Supplied in the Fittings Kit are all the fittings required to connect the generator to the
application. The contents of the Fittings Kit are as follows:
1. Tygon Tubing x 1m
2. Barbed Hose Fitting x 1
3. UK Mains Power Cable x 1
4. EU Mains Power Cable x 1
5. US Mains Power Cable 110v

x1

6. US Mains Power Cable 230v

x1

7. Installation Guide– Precision Hydrogen

x1

8. 4 or 8 Litre Water Bottle**

x1

9. Transit Plugs x 2
**Optional Extra, Includes additional Barbed Hose Fitting
All of the generator output ports are located on the rear of the generator.

Unpacking Instructions
The generator weight constitutes a two person lift and as such, safe lifting practices
should be employed; do not attempt to lift on your own, as you will significantly
increase the chance of injury & damage to yourself and others around you.
1. Remove the packing straps and lift the lid upwards.
2. Next remove the fittings kit tray and the outer cover that makes up the main box of
the packaging.
3. Next, with someone on either side of the unit, position your hands underneath the
unit ready to lift.
4. Ensuring your knees are bent and your back is straight, lift the unit to the desired
location.

Page 20

Transit Plug Removal
All hydrogen generators should be fitted with two Transit Plugs 3301437 during the
packaging process. These plugs are fitted to the H2 vent and O2 vent of all hydrogen
units and ensure no water from the internal water bottle can escape during transit.
Plugs should be removed during the installation of the generator.
These plugs require very little force to remove and will self-remove if left in the vents

3301437

Page 21

Installation
Location
The generator should be located on a flat, level surface for operation - this will ensure
that the water level sensors within the unit operate correctly. Some components in the
generator produce heat during operation and therefore an adequate airflow must be
maintained around the generator to allow the ventilation system to perform efficiently.
If the generator is stored in an enclosed space the environment must be controlled via
an air conditioner or extraction fan. The provision must be made to allow the volume
of air in the room to be changed 5 times per hour. The rear of the generator will
become warm to the touch during operation - a minimum clearance of 15 cm (6”) from
other bodies is recommended.
Do not obstruct or connect the vents to any application. Failing to observe this could
lead to permanent damage of the generator.
Please ensure generator is positioned so as to permit easy disconnection if required.
Do not expose the unit to freezing conditions. Please adhere to the operating
temperatures below:
Minimum Operating Ambient Temperature:

10 °C (50 °F)

Maximum Operating Ambient Temperature:

35 °C (95 °F)

Note: It is recommended that the Precision Hydrogen 1200cc unit is left to run for 3
hours, and the Precision Hydrogen Trace 1200cc unit is left to run for 24 hours before
use.

Page 22

Generator Overview
General Dimensions
380 mm / 14.9”

406mm / 15.9”

540 mm / 21.2”

The Generator must always be placed on a flat, level surface. Failure
to do so will affect the performance of the Generator.
WARNING

Page 23

Unit Controls
Touch Screen

Rear Connections

O2 vent
H2 vent
Power Switch
Master Connection*
Slave Connection*
Power Inlet
H2 Detector**
Connection
Water Supply Fill
Drain
H2 Exhaust
H2 Delivery
*

Refer to page 29 for information on using Master and Slave connections.

**

Refer to page 28 for information on using the optional H2 Detector.

Page 24

Tubing
For the hydrogen supply line, it is recommended that only clean grade copper or
stainless steel tubing should be used.
Plastic tubing material such as Teflon®, polyvinyl chloride, or Tygon® should not be
used when plumbing GCs since these materials will allow air and water to diffuse into
the gas lines. In addition, plastic tubing can give off organic impurities which can
cause ghost peaks and baseline instability.
Furthermore, Peak Scientific recommend that compression fittings are used, and that
the fittings are free from Teflon® tape.

H2 Ventilation
Peak Scientific recommends that both the H2 Exhaust and H2 Vent ports at the rear
of the unit should be connected to an exhaust hood, or other ventilation system, to
ensure safe disposal of vented gasses. Tubing sizes for the vent ports are 4mm OD for
the H2 Exhaust and 6mm OD for the H2 Vent.

Page 25

Water Quality
Use only ASTM Type II, or better, deionised water, which must have a conductivity
of less than or equal to 1μS/cm (greater than 1 MΩ resistivity) @ 20°C and should be
replaced as required. Water quality should be checked prior to being used to supply
the Precision Hydrogen Generator.
Use of water in the Precision Hydrogen Generator with a purity not specified above
will result in a reduced efficiency of hydrogen production, failure of the generator and
loss of warranty.
Water should be stored in a UV protected dark container away from direct sunlight.
The bottle should have a vented lid to minimise any dust or debris contaminating the
water supply. A suitable external water bottle is available from Peak Scientific.
Note: Customers should check the water quality of the external water supply once a
week to maintain the health of the generator.

Automatic Filling
The Precision Hydrogen generator uses an automatic water filling system, whereby
sensors in the unit’s internal water tanks detect when the water level reaches a
minimum.
This then refills the tank using a rear connection to an external DI water supply. The
unit should be connected to the water supply as shown on the next page.
Using the length of Tygon tubing and the hose barb fitting from the fittings kit, attach
the barb to the tubing. Then connect one end to the water supply and the other to the
Fill port at the rear of the Precision Hydrogen.
For efficient water filling the external supply should be no more than 2 metres away
from the connection on the generator.

WARNING

WARNING

Page 26

The DI Water Supply source MUST NOT be located higher than
the height of the surface that the Precision Hydrogen generator is
placed upon. A supply located higher than specified will result in the
generators internal water bottle over filling.
A pressurized DI Water Supply Source will also result in the internal
water bottle over filling, and therefore MUST NOT be used.






If the generator cannot load enough water to switch the sensors in the water bottle
the generator will alarm providing the user with the screen below.

The external water supply should be checked prior to pushing the recovery button
which will then re-engage the load pump and will allow the generator to continue to
fill with water.
When the system detects a low water level it starts a 3 hour timer, should the system
not receive enough water to switch the low level sensor it will then stop the generator
from producing hydrogen. This happens to ensure that your Precision Hydrogen
Generator remains in its optimum operating condition.
If the generator has reached this point the screen below will be shown on the HMI.

Page 27

To resolve this, check your external supply before cycling the power on the generator.
Once the low level water sensor disengages the generator will then begin producing
hydrogen as before.
Four- and Eight-litre water storage bottles can be purchased from Peak Scientific,
please contact your Sales Representative for more information.

Page 28

Draining the Water Tank
1. Before draining the generator, ensure that you have tubing with a barbed connector
and a vessel to collect drained water
2. Connect tubing to the ‘Drain’ port on the rear of the Precision Hydrogen generator
using the barbed fitting with loose end in the vessel
3. Once the barbed fitting is inserted into the drain connector, water will drain from the
generator’s internal tank into the vessel
4. Fill the external water bottle with fresh DI water (ASTM type II)
5. Once the internal tank of the generator is emptied, connect the barbed connector to
the ‘Fill’ port of the generator and the generator will automatically draw water from
the external water bottle

Page 29

Water Usage
The water consumption rate of the Precision Hydrogen 1200cc and Hydrogen Trace
1200cc Generator is shown in the below graph.

Page 30

Electrical Connection
Connect the generator into an appropriate voltage supply between 100-230VAC, refer
to the generator serial plate for input specification and ensure your supply matches
the requirements.
If the appropriate power cord is not supplied; a new CSA, UL approved power cord,
rated to at least 10 amps, can be fitted by a qualified electrician.

WARNING

This unit is classified as SAFETY CLASS 1. THIS UNIT MUST BE
EARTHED. Before connecting the unit to the mains supply, please
check the information on the serial plate. The mains supply must be of
the stated AC voltage and frequency.

EARTH/GROUND (E):-

Green & Yellow

or

Green

LIVE (L):-

Brown

or

Black

Neutral (N):-

Blue

or

White



Electrical requirements are 100-230VAC nominal. However, running continuously at
voltages outwith this is not recommended. Extended periods at extremes can have a
detrimental effect on the operation and life of the generator.
If a substitute main supply cord is used, ensure that it has adequate rating. Failure to
do so could cause damage to the generator.

Page 31

Start-up Sequence
CHECK:
1.

H2 Outlet is connected to application

2.

Mains power is connected

Turn the power switch ON. The digital display will light up, the cooling fans will rotate
and the internal pumps may automatically run to load water if the internal tanks are not
full.
On power-up the generator will check the water level, once the water level is at the
minimum level required the generator will perform a diagnostic check including a leak
test, this should take approximately six minutes.
Upon successful completion of the leak test, the operator is presented with the main
screen and the generator is ready to deliver hydrogen.
The next screen displayed to the user will be the Home screen, where two options will
be available, Start and Menu. The first time the unit is switched on the user should select
the Menu option which allows the desired unit of measure and delivery pressure to be
selected.
Also displayed on this screen are the Shutdown and Back options. Shutdown will
depressurize the generator. This should be selected before turning the unit off using
the Power switch at the rear of the unit. Finally, the Back option returns the user to the
home screen where the Start option will allow the flow of hydrogen to the application.
Upon selection the unit will take a few moments to adjust to the desired delivery
pressure. If the unit has been used previously the Start button will initiate the supply of
hydrogen to the application at the last used pressure.
Note: If leak test is unsuccessful, an alarm will sound and a red failure screen will be
displayed complete with a mute button. The user is prompted at this point to contact
their Peak service provider.

Liquid Leak Detectors
Liquid leak detectors should not be used on Precision Hydrogen generators. These
solutions are easily drawn into the high purity hydrogen gas system and can cause
irreparable damage to a GC column. If a liquid solution has to be used, then it should
be IPA based, or a portable hydrogen detector should be used.

Gas Traps
It is recommended that moisture, oxygen and hydrocarbon traps are used on the
gas supply line between the Peak generator and the instrument to provide back-up
contaminant protection for your instrument.
The hydrogen gas produced by the Precision Hydrogen will be sufficiently pure for
these contaminant traps to last a long time, but should a leak ever occur on the
gas line, the traps will ensure that any harmful contaminants are caught, therewith
preventing potential damage to the instrument.
Page 32

H2 Detector Option

CAUTION

These are not standard serial ports, damage to serial equipment is
highly likely if connected. 24Vdc signal level exists on certain pins
with a maximum power rating of 5W.

The Precision Hydrogen 1200cc models can be purchased along with a H2 detector unit.
The detector is intended for use with a GC, it is recommended that the detector unit is
placed above the height of the GC outlet. The detector can be wall mounted.
This unit is plugged, from the ‘In’ port at the rear on the detector, into the ‘H2 Detector’
port at the rear of the generator, as shown below. This connection will provide the detector unit with power and allows communication between the generator and the detector unit.
The detector will take samples continuously and both the detector and the Precision
Hydrogen Trace will alarm if dangerous levels of Hydrogen are detected, the Precision
Hydrogen Trace will then shut down.
Multiple detectors can be connected to one generator, up to 4 in number. If this is desired, connect the first detectors ‘Out’ port to the second detectors ‘In’ port, as illustrated below.
Contact your local Peak Sales rep or distributor for ordering information on the H2 Detector.
Precision Hydrogen (Trace)
1200cc

H2 Detector

IN
Port

H2
Detector
Port

Page 33

OUT
Port

Expanding Capacity

CAUTION

These are not standard serial ports, damage to serial equipment is
highly likely if connected. 24Vdc signal level exists on certain pins
with a maximum power rating of 5W.

The Precision Hydrogen (Trace) 1200cc has an expandable feature, where the flow capacity of the unit is increased, by connecting up to 16 units in a Master-Slave format.

Rear Connections
In order to use this feature the units must be connected together via the ‘Master’ port
on the first Precision Hydrogen (Trace) 1200cc, and the ‘Slave’ port at the rear of the
next Precision Hydrogen (Trace) 1200cc unit.
The first Precision Hydrogen (Trace) 1200cc unit is automatically defined as the
Master, and before the connections are made and H2 is supplied, the desired pressure
must be set on all units. This must be the same pressure for all.
The user can now press Start on the Master unit to begin the flow of H2. The Master
will now manage all the other units.
The Data Cables (08-8902 for B&W screen units, 00-5587 for colour screen units)
used to connect units together can be purchased from Peak Scientific.

Master Port
Slave Port

Master

Page 34

Slave

EOL

Switching the Unit Off
The unit can be switched off at any time using the following procedure.
Firstly, press the Stop button on the Touch screen, then press Menu, and finally select
Shut Down.
The unit will take a few moments to depressurize after which the power switch at the
rear of the generator can be switched off.

Cleaning
Clean the outside of the Generator only using warm soapy water and a clean damp
cloth. Ensure the cloth is thoroughly rung out to remove excess fluid prior to use.
Cleaning should only be undertaken with the power switched off and
the power cord removed from the rear of the Generator.

CAUTION

Page 35

Under no circumstances should any solvents or abrasive cleaning
solutions be used as these can contain fumes that could be harmful to
the Generator.

Deioniser Column Replacement
Precision Hydrogen 1200cc
The deioniser column maintains the water quality of the water as it is circulated through the
system and to ensure the optimum health of the generator, the resin in the deioniser column
should be replaced every 12 months. Only Peak Scientific approved components should
be used with the Precision Hydrogen (Trace) 1200cc, please refer to page 31 for details on
ordering the required service kits.
Listed below are the instructions for replacing the deioniser column. The user will be
prompted to do this by the HMI screen displaying ‘Change DI Column’. However, in the event
of a change being required out with the 6 month schedule, this screen can also be accessed
manually.
1. From the main screen pressing MENU will bring up a menu screen with an option
called COLUMN, this option should now be selected. If this is a scheduled change,
the screen will already display CHANGE D.I. COLUMN. The user should select the
CONTINUE option.

2. The two screens below will now be shown for Manual and Scheduled changes
respectively. The CHANGE button on both screens should now be selected.

3. Remove the fascia by first pulling it forwards and then sliding it up ensuring that
the HMI screen is disconnected from the unit.

Page 36

4. The deioniser column is held in place by two Velcro straps, these must be
unfastened.
5. Next disconnect the deioniser column by pressing the silver tabs on the fittings at
the top and bottom of the column.

6. Remove the used column by pulling it towards you.
7. Fit a new deioniser column (05-7062) into the generator and reconnect the tubing

8. Refasten the Velcro straps and re-attach the front fascia, making sure to connect
the HMI screen to the unit again.
9. Finally, the HMI screen will display D.I. COLUMN CHANGED? The CONFIRM button
should now be selected to resume normal operation.

Page 37

Service Requirements
Service Schedule
Purchase Interval

Component

12 Months

Precision Hydrogen 1200cc Annual
Maintenance Kit

24 Months

Page 38

Precision Hydrogen 1200cc 24 Month Interval
Maintenance Kit

Visit

www.peakscientific.com/
ordering

Troubleshooting
Problem

Possible Solution
•

Ensure power cord is plugged into the
Generator and that the power socket is
turned on.

•

Check the fuse in the power cord
plug.

•

Contact your service provider.

Diagnostics Failed Alarm

•

Contact your service provider.

Cell Over Voltage Alarm

•

Contact your service provider.

Over Pressure Alarm

•

Contact your service provider.

•

Check external pipework for leaks.

•

Contact your service provider.

•

Contact your service provider.

•

Check water supply level and fill if
necessary.

•

Contact your service provider.

•

Check for external leaks.

•

Check the Customer Set Pressure is higher
than 1PSI

•

Contact your service provider.

•

Check the water quality of the external
supply.

•

Contact your service provider.

The Generator will not switch on and the
power switch does not illuminate

Capacity Excess Alarm

Water Level Fault

Low Water Supply Alarm

Hydrogen detected*

The generator is not producing hydrogen

The generator is not producing the required
amount of hydrogen at the set pressure.

* If Hydrogen Detector is fitted.

Page 39

Go Online or Complete and Return
You can register for your FREE 3 year Warranty with ease online at
www.peakscientific.com/protected.
Alternatively, you can send the completed form to Peak Scientific by post or
email at warranty@peakscientific.com.

Go Online or Complete and Return
You can register for your FREE 12 month Warranty with ease online at
www.peakscientific/protected.
Alternatively, you can send the completed form to Peak Scientific by post or
email at warranty@peakscientific.com.

Product Warranty Registration
Contact name
Email address
Company
Address
City/town
Postcode
Country
Telephone
Generator serial #
Model type
Installation date
Do you still use an
alternative gas solution i.e.
cylinders or bulk liquid?

Yes

What gas requirements do
you have in your lab?

Hydrogen

No

Nitrogen

Zero Air

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Important!
You have 1 month to register your Peak Scientific product from the date of installation. Once
registered the warranty will be honoured for a period of 12 months. If you wish to defer the installation
of your generator, you must notify Peak Scientific immediately by emailing warranty@peakscientific.
com. For generators that remain unregistered after 1 month from the shipment date, the warranty will
be considered active from the date of factory dispatch.
* Complete Plan only

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Important!
You have 1 month to register your Peak Scientific product from the date of
installation. Once registered the warranty will be honoured for a period of 3
years. If you wish to defer the installation of your generator, you must notify
Peak Scientific immediately by emailing warranty@peakscientific.com. For
generators that remain unregistered after 1 month from the shipment date, the
warranty will be considered active from the date of factory dispatch.

Page 40

Page 41

Page 42

Page 43

Peak Scientific has highly trained, fully certified Field Service Engineers located in over 20 countries
across every continent around the world. This allows us to provide an industry-leading rapid
response service to our customers. With [Peak Protected], your laboratory’s productivity becomes
our top priority.
To discuss Peak Protected generator cover and payment options speak to your local Peak
Representative or for further information contact: protected@peakscientific.com

Peak Scientific
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Inchinnan Business Park
Inchinnan
PA4 9RE
Scotland, UK
Tel: +44 141 812 8100
Fax: +44 141 812 8200
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generator products please contact
marketing@peakscientific.com

Copyright © Peak Scientific Instruments Ltd 2025 — Precision Hydrogen 1200cc User Manual Rev 16 RSID 2379 EN —14/01/2025