Precision Hydrogen 1200cc (Colour Screen Model) - User Manual 

Extracted text

Precision Hydrogen 1200cc (All Colour Screen Models)
User Manual

Copyright © Peak Scientific Instruments Ltd 2022 — Precision Hydrogen 1200cc (PCB) User Manual Rev 3 RSID 4447 EN —29/09/2022

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
Declaration of Conformity
Environmental Declaration
Technical Specification
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
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
Service Requirements
Troubleshooting

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Change History
Rev

Comment

Name

Date

Spec Update

D.Lai

15/7/2022

1
2
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4
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8

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 99.9999% (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 equivalent.
Page 5

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 sub-
clause 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 sub-clause 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

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.

WARNING

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.

WARNING

Page 8

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 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.

•

FCC 47 CFR Part 15 class A
Unintentional radiators; Conducted and Radiated emissions limits.

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

31st August 2021

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 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.

•

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

31st August 2021

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

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

100-240VAC
50/60 Hz
10A 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
Noise Level @ 1 m
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)
20 dB
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 13

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 14

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 15

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 16

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 17

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. Teflon Tubing x 1m
3. Barbed Hose Fitting x 1
4. UK Mains Power Cable x 1
5. EU Mains Power Cable x 1
6. US Mains Power Cable 110v

x1

7. US Mains Power Cable 230v

x1

8. Installation Guide– Precision Hydrogen

x1

9. 4 or 8 Litre Water Bottle**

x1

10. 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 18

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 19

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 20

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 21

Unit Controls
Touch Screen

Rear Connections

O2 vent
H2 vent
Power Switch
Power Inlet
Master Connection*
Slave Connection*
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 22

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 23

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

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.

WARNING

Page 24

/
×

×

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.

Water Level Fault

Unable to load water!
Please check the water supply.
Confirm
Start

Mute
Menu

The external water supply should be checked prior to pushing the Confirm button which
will then re-engage the load pump and will allow the generator to continue to fill with
water. If the generator again fails to load water the below screen will be displayed.

Water Level Fault

A problem with the water
sensors has been detected.
Start

Page 25

Menu

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 prevent damage to the hydrogen cell and 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 Human
Machine Interface (HMI).

Water Level Fault

There is no water in the generator.
The generator has been shut down to
prevent damage to the cell.
Start

Menu

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 26

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

Page 27

Electrical Connection
Connect the generator into an appropriate voltage supply between 100-240VAC, 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 100-240VAC 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 28

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