Horizen - User Manual  

Extracted text

Horizen 24
User Manual

Horizen 24 User Manual Rev 4 RSID 5113 EN 05/02/24

Register Product to Operate
To begin operation of your unit you will need to register your
generator. You can do so by visiting www.peakscientific.com/activate
or by downloading the Peak Gas App.
Registering will activate your 2 year warranty* - covering every
single component in your generator.







Important!
You must register your generator before nitrogen generation can commence.
In order to be eligible for warranty your generator must be registered to the
end user (not a reseller or distributor) and must have an annual preventative
maintenance arranged within 12 months of the installation date & carried out by
a Peak approved Field Service Engineer. Once registered the warranty will be
honoured for a period of 24 months.**
* 2nd year warranty subject to completion of preventative maintenance visit arranged within 12 months of installation.
For terms and conditions please visit www.peakscientific.com/warranty-statement/
** Call out and labour charges may apply where generator was not purchased directly from Peak

Page 2

Contents
Change History
How to use this Manual
Warranties and Liabilities
Safety Notices
Symbols
Safety Notice to Users
EU Declaration of Conformity
UK Declaration of Conformity
WEEE Compliance Statement
CSA Compliance Statement
EMC Class A Compliance Statements
European Union (EU) and United Kingdom (UK) Class A Compliance statement
FCC Class A Compliance Statement
Industry Canada Class A emission compliance statement
Korea Communications Commission (KCC) statement
Technical Specification
Unpacking
Fittings Kit Contents
Installation
Operation in High Ambient Temperatures
Generator Overview
Horizen 24 General Dimensions
Horizen 24 Rear Connections
Unit Controls
Drain Connection
Electrical Connection
Start-Up Sequence
Product Registration
Connecting to the application
Setting the output pressure
Normal Operation
Home Screen
Variable Power Output
Service Screens
Error Screens
Service Log-in Screen
Information Screens
Settings Screens
Service Log-in Screen
Unusual Operation
Service Requirements
Service Schedule
Service Indication
Peak Protected
Cleaning
Alarm Messages
Troubleshooting

Page 3

4
4
5
7
7
7
8
9
10
11
12
12
12
12
12
13
14
15
16
16
17
17
18
19
20
21
22
23
25
26
27
27
27
28
29
29
29
30
30
31
32
32
33
34
35
36
37

Change History
Rev

Comment

Name

Date

1

Initial Release

L. Couttie

19/06/2023

2

Purity Update

L. Couttie

13/09/2023

3

Purity Update

L. Couttie

16/11/2023

4

Content Updates

L. Couttie

05/02/2024

How to use this Manual
This manual is intended for end users and has been written 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 the Peak Partner from which you purchased your generator.

Page 4

Warranties and Liabilities
Warranty & Liability Coverage
1.

Peak warrants that, subject to the provisions in this statement, purchased Peak generators, whether
purchased directly from Peak or indirectly via an approved, certified and trained distributor or partner
(referred to hereafter as a “Peak Partner”) will comply in all material respects with any specifications
referred to in your customer order confirmation and, subject to installation and operational guidelines
being followed as described in applicable product manuals, shall be free from any defects in quality
of materials or workmanship for a period of one year from the date of installation, provided this takes
place within 3 months of factory dispatch.

2. Where the purchased generator is from the Precision Hydrogen series, Peak further warrants that,
subject to installation and operational guidelines being followed as described in applicable product
manuals, the hydrogen cell shall be free from any defects in quality of materials or workmanship for a
total period of three years (inclusive of warranty period specified in clause 1) from date of installation,
provided this takes place within 3 months of factory dispatch.
3. Where the purchased generator is from the i-Flow 6000 series, Peak further warrants that, subject
to installation and operational guidelines being followed as described in applicable product manuals,
the generator shall be free from any defects in quality of materials or workmanship for a total period
of two years (inclusive of warranty period specified in clause 1) from the date of installation, provided
this takes place within 3 months of factory dispatch and the following provisions have also been met:
a. you must purchase a service plan, ensuring the generator is serviced by Peak or a Peak Partner on
or before the end of the first 12 months of your ownership, and serviced at least once during each
subsequent 12 month period thereafter;
b. the generator (and any associated equipment) must have been commissioned by Peak or a Peak
Partner;
c. the feed air or inlet air supply to the generator must comply with ISO 8573-1:2010 Class 1.2.1 at all
times;
d. your air compressor, dryer, filtration and oil removal systems must be deemed suitable for use by
Peak or a Peak Partner, and must be changed and serviced regularly, in line with the equipment manufacturer’s recommended guidelines; and
e. any generator failure or fault that is deemed to have been caused by the failure of any upstream
equipment, component, part or system (such as air compressor, air treatment or filtration) will be
excluded from the warranty described herein.
4. Where the purchased generator is from the Genius XE or Horizen range, Peak further warrants that,
subject to installation and operational guidelines being followed as described in applicable product
manuals, the generator shall be free from any defects in quality of materials or workmanship for a
total period of two years (inclusive of warranty period specified in clause 1) from the date of registration, provided the following provisions have also been met:
a. The product must be registered within 12 months of the build date, to the end user (registrations to
3rd party resellers or other channel partners will not qualify for the warranty extension).
b. You must purchase a service plan, ensuring the generator is serviced by Peak or a Peak Partner on
or before the end of the first 13 months of your ownership
c. The product is required to be serviced in accordance with manufacturer requirements, preventative
maintenance visit must be arranged within 13 months of installation, and the generator must be serviced by Peak, or a Peak Partner within 13 months of installation.
d. Products purchased via Peak Partners may be subject to call-out and labor charges, which is at the
discretion of the Peak Partner.
5. Peak also warrants that any replacement parts whether purchased (directly from Peak, or via a Peak
Partner) or supplied as part of any remedial action undertaken in line with the provisions of clauses 13
and 14, shall be free from any defects in quality of materials or workmanship for a period of 180 days
from the date of factory dispatch, provided its installation is performed by Peak or a Peak Partner.
6. This warranty does not exclude Peak’s liability in respect of any claim for death or personal injury to
any person, in so far as such can be attributed to negligence or breach of duty of care directly resulting

Page 5

from failure of Peak to comply with the provisions in clauses 1, 2, 3, 4 & 5.

Exclusions & Limitations
7.

This warranty does not cover:
a. damage, deterioration or malfunction resulting from an alteration or modification to a generator
which has not been carried out by Peak or a Peak Partner;
b. damage, deterioration or malfunction resulting from what Peak reasonably believes to be abuse, or
misuse of a generator by you or any third party;
c. liability for accident or neglect (other than pursuant to clause 6);
d. maintenance or repairs which have not been carried out by Peak or a Peak Partner;
e. operation of a generator or exposure of a generator to environmental conditions that fall out-with
operational guidelines as specified in the applicable product user manual; and
f. lightning, power surges or any other acts of God or nature.

8. This warranty is non-transferrable. Only the original owner of the generator may benefit from the
terms within this statement.
9. Peak shall not be liable in respect of any claim made for costs, damages, losses or expenses (whether consequential, direct, indirect or otherwise) or in any respect howsoever arising including, but not
limited to, liability from accident or negligence (other than pursuant to clause 6) that may be suffered
by you or any third party.
10. No person or entity is authorised to change the terms and conditions outlined in this warranty statement in any respect, or to create any additional obligations or liabilities for any party involved.
11. This warranty statement supersedes any and all prior warranty agreements between the parties and
constitutes the complete, final and exclusive understanding of the parties with respect to the subject
matter. All prior negotiations, representations, or promises, whether oral or written, of either party
shall be deemed to have been merged herein.
12. If any part of this warranty statement is invalidated, for whatever reason, such part will be deleted
and the rest shall remain unaffected, continuing to be in full force and effect.

Delivery of Warranty Service
13. Subject to clause 14, and:
a. Peak being notified by you, within the duration of the applicable warranty period, of any defect
that you think is subject to any warranty valid under clauses 1, 2, 3, 4 or 5; and
b. Peak being permitted to inspect the generators, parts and their installation (along with any relevant
packaging)
Peak shall at its option repair or replace defective generators or parts (including, if necessary, any
moving parts and irrespective of runtime). No additional charges will apply, for parts or delivery and,
where applicable, labour or travel. Peak will endeavour to deliver this service within 3 working days of
your notification.
14. Where, in Peak’s reasonable opinion, a defect is subject to an exclusion described in clause 7, Peak
reserves the right to charge for parts or delivery and, where applicable, you may also be charged by
Peak for call out, labour or travel in respect of any repair or replacement which you authorize Peak to
carry out.

Page 6

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

These instructions must be read thoroughly and understood before
installation and operation of your Peak 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.

WARNING

Page 7

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:

Nitrogen Generator

Model Designator:

Horizen 24

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
EN61010-1:2010/A1:2019 Safety Requirements for Electrical Equipment for
Measurement, Control and Laboratory Use.

•

Electromagnetic Compatibility Directive 2014/30/EU
EN61326-1:2021 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:

26th October 2023

Page 8

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:

Nitrogen Generator

Model Designator:

Horizen 24

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.
BS61326-1:2021 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:

26th October 2023

Page 9

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 10

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 11

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 12

Technical Specification
Horizen 24
Environment

Horizen 24
Minimum Operating Ambient Temperature
Maximum Operating Ambient Temperature
Maximum Altitude
Maximum Relative Humidity
Minimum Storage Temperature*
Maximum Storage Temperature*
Generator Outlets
Max Gas Outlet Pressure
Max Gas Outlet Flow Rate†
Purity
Dewpoint^
Particles
Phthalates
Suspended Liquids
Hydrocarbon Removal
Gas Outlets
Drain Outlet
Pressure Gauges/Displays
Start-Up Time

5°C / 41°F
35°C / 95°F
3000m
80% @ 35°C
-20°C / -4°F
60°C / 140°F
Up to 116 psi / 8 bar
24 L/min
Up to 99.9%
-70°C
<0.01ɥm
Phthalate & BHT Free
None
<1ppm NMHC
1 x 1/4" BSPP Female
1 x 1/4" BSPP Female
1
30 mins

Electrical Requirements
Voltage
Frequency
Current
Power Consumption @ 100 psi Max.
Input Connection
Power Cord
Circuit Breakers
Pollution Degree
Instillation Category
Transient Over Voltage

100 - 240V ±10%
50/60Hz
6.4 - 2.9A
559W (230V), 636W (100V) and 625W (120V)
C20 Plug
C19 Socket
10A MCB, 4A MCB
2
Class 1
Over Voltage Category II

General
Dimensions cm (inches) H x W x D
Generator Weight Kg (lbs)
Shipping Weight Kg (lbs)
Noise Level‡

574 x 450 x 719 mm
(22.5 x 17.7 x 28.3'')
59 Kg (130 lbs)
81 Kg (179 lbs)
59 dBA

* Note: Please ensure Generator is situated in a well ventilated environment.
†
Note: Flows in LPM are expressed as normalised volumes at 101.3 kPa, 20°C
‡
Note: Noise level expressed as SPL (Sound Pressure Level) measured at 1m from frontal source in a reverberant chamber
^ Note: Dewpoint of -70C will achieved within 24hours average (depending on environmental conditions and typical gas flow)

Page 13

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.
Units may be shipped without some or all of the above labels due to customer request.
Page 14

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. 1/4" x 1/4" Compression Fitting

x1

2. 1/4” x 6mm Push-Fit Fitting

x2

3. Flow Control Silencer

x1

4. 1/4” PTFE Tubing

x 3m

5. 6mm PTFE Tubing

x 3m

6. 6mm Polyethylene Tubing

x 3m

7. UK Mains Power Cable

x1

8. EU Mains Power Cable

x1

9. US 120V Mains Power Cable

x1

10. US 230V Mains Power Cable

x1

All of the generator output ports are located on the output panel at the rear of the unit.

Page 15

Installation
Generator Environment
The generator is designed for indoor use only. It should be installed adjacent to
the application(s) it is supplying. If this is not convenient then the unit can be sited
elsewhere. Consideration should be made of the lengths of pipe runs as pressure drops
can result from extended runs of pipe. See page 21 for guidance on tubing lengths
greater than 3m.
Performance of the generator is affected by ambient conditions. Note should also be
taken to the proximity of Air Conditioning outlets. These can sometimes give rise to
“pockets” of air with high relative humidity. Operation of the unit within such a pocket
could adversely affect its performance. Consideration should also be given to the air
flow around the unit. An air gap of 75mm (3”) should be maintained down both sides.
Please refer to the drawing opposite for the general dimensions of the unit.
Please ensure generator is situated in a well ventilated environment and is positioned to
permit easy disconnection if required.
Minimum Operating Ambient Temperature:

5 °C (41 °F)

Maximum Operating Ambient Temperature:

35 °C (95 °F)

Please note that the generator’s function is primarily to remove Oxygen and Moisture
from the generated Nitrogen and/or Dry Air. Depending on model, some hydrocarbon
technology may be employed by the generator, in environments with high ambient
concentrations of THC additional THC removal filtration may be required, or service life
of integrated THC traps may be significantly reduced.

Operation in High Ambient Temperatures
Horizen generators are designed to supply the rated flow, purity, and pressure in
most laboratory environments, however high ambient temperatures can affect the
performance of the generator. Output flow capabilities may be restricted in high
ambient temperatures, or areas with insufficient air circulation.

Page 16

Generator Overview
Horizen 24 General Dimensions
450 mm / 17.7”

574 mm / 22.5”

719 mm / 28.3”

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

Page 17

Horizen 24 Rear Connections

Power Inlet
Power Switch
Nitrogen Outlet
Drain Outlet

Ensure all inlets and outlets are connected to correct sources and
applications
WARNING

All Connections should only be carried out by trained personnel
WARNING

WARNING

Page 18

Generator must be switched off and unplugged prior to any cleaning
or maintenance operations

Unit Controls
Touch Screen

Page 19

Drain Connection
Fit the 6mm push fit fitting to the drain port at the rear of the unit.
Tighten using a 12mm or 1/2” spanner. Use the 6mm tubing to connect this to a suitable
drain connection or container. It should be noted that the generator can expel a
considerable amount of water (dependant on ambient humidity).

CAUTION

Page 20

If a container is used it should be emptied at regular intervals. The
container used MUST be a plastic material and MUST NOT be glass for
safety reasons. The container MUST NOT have an airtight seal as water
and air will be expelled periodically under slight pressure. The container
must be placed at ground level with no elevated or spiralled tubing.Fix
the drain ending of the tube firmly to prevent it from vibrating during
draining.

Electrical Connection
Connect the generator to any voltage supply. Refer to the generator serial plate for
input specification and ensure your supply matches the requirements.
If an appropriate mains power cords is not supplied or a substitute one is used then
ensure that all components of it the plug, cord and connector have adequate ratings for
the generator and appropriate approvals for the country of use. Failure to do so could
cause damage to the generator or risk overloading of the power cord
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.
WARNING

EARTH/GROUND (E):-

Green & Yellow

or

Green

LIVE (L):-

Brown

or

Black

Neutral (N):-

Blue

or

White



The generator is universal voltage and will function with any voltage greater than 100V.
If the equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment maybe impaired.
WARNING

Page 21

Start-Up Sequence

CAUTION

Before the generator is connected to the application, the generator
should be operated in isolation (i.e. not connected to the application)
for thirty minutes. This is to ensure any impurities present are purged
from the system. Failure to do this may harm the application.

Before connecting the generator to the mains and switching it on for the purge run, it is
necessary to fit the silencer to the nitrogen output port.
Once this is done, the generator can be connected to the mains and switched on.
The Horizen will then go through Product Registration. This is detailed on the next page.
Continue to operate the generator for a further 30 minutes to allow all the system to be
purged with Nitrogen.
The generator is now purged, the silencer can be removed and the tubes can be
connected at the rear of the unit.

Page 22

Product Registration
Before the generator will start-up for the first time the user must enter a unique 4-digit
PIN code.
To receive your generator’s unique PIN code, please register on the Peak
website www.peakscientific.com/activate or download the Peak mobile
app from the Google Play Store or Apple App Store. A PIN code may also
be requested by phoning the Peak helpdesk.
This code is only required on the initial start-up of the unit.

Horizen 24 Registration
1. Press the 'I've got my pin' button on the screen on the front of the generator.

2. Enter your PIN.

3. The unit will then go through initialisation phase

Page 23

4. Upon completion of the initialisation phase, the screen will display the below, home
screen.

Page 24

Connecting to the application
Once the initial purge run of 30 minutes has completed, it is ready to be connected to
the application(s).

CAUTION

The pressure in the system must be allowed to dissipate before
connecting the generator to the application(s). This may be done by
leaving the Nitrogen port at the rear of the generator open, pressing
Turn Off on the HMI home screen and turning off the power supply to
the generator.

Select the appropriate 1/4" or 6mm fitting from the fittings kit and connect to the
generator outlet. Using the appropriate tubing, connect the outlet of the generator to
the inlet on the application.
If you require more tubing than is supplied please refer to the Tubing Lengths section.

CAUTION

Once the tubing is connected to the application, please ensure that it
is thoroughly checked for being leak-tight. Even the slightest leak in
the gas supply between the generator and the application can lead to
a drop in Nitrogen purity or insufficient pressure.

Tubing Lengths

CAUTION

The diameter of the tubing which will be connected to the gas outlet is
important and is determined by the length of tubing required. Failure
to follow these recommendations could lead could lead to excessive
pressure drops between generator and application.

< 3 meters:
> 3-10 meters:


Use 6mm OD / 4mm ID or 1/4” OD / 3/16” ID PTFE tubing.
Use 8mm OD / 6mm ID or 5/16” OD / 1/4” ID PTFE tubing.
Tubing and fittings not supplied in the fittings kit.

> 10 - 40 meters: Use 10mm OD / 8mm ID or 3/8” OD / 5/16” ID PTFE tubing.

Tubing and fittings not supplied in the fittings kit.
> 40 metres:


Page 25

Please contact Peak Scientific with the relevant distance and
we will calculate the flow resistance and the tubing size required.

Setting the output pressure
The output pressure is factory set to 100psi, however; the generator can deliver Nitrogen
at the rated flow up to a maximum pressure of 116psi. The output pressure can be adjusted
using the pressure settings function on the HMI home screen.
To ensure a smooth pressure profile, it is not recommended to increase the output pressure
above 116 psi.

Page 26

Normal Operation
The generator requires minimal operator input. So long as the generator is installed as
described in earlier sections and is serviced in accordance with the specified maintenance recommendations (see Service Requirements), then it will operate in accordance
with the demands of connected applications.
The generator will automatically produce the factory set pressure of 100psi. The outlet
flow rate will vary to satisfy customer demand up to a maximum flow rate in normal
operating conditions of 24 LPM.
The generator is a variable-purity system, and will supply a higher purity of nitrogen at
lower flow rates, with a minimum purity of 95% nitrogen at the maximum rated output
flow.

Home Screen

This is the main home screen in normal operation.

Variable Power Output
When demand from the instrument stops the Horizen generator will run in a reduced
power state to reduce energy consumption and minimise component wear.
If demand from the application starts again, the system will detect the demand for gas
and will automatically increase workload to match the flow requirement.

Page 27

Service Screens
Service Due Home Screen Warning
This is the main home screen when a service is due
displaying a yellow service warning.

Service Overdue Home Screen Warning
This is the main home screen when a service is overdue
displaying a red service warning.

Service Countdown Screen
This is the running hours screen which displays the
service countdown.
Pressing the service due/overdue warning icons will open
this screen.

Error Screen
This is the error screen displaying alarms when service
is due or overdue.
The alarm message will remain until the generator
service has been completed.

Page 28

Error Screens
Error Home Screen
This is the main home screen when there is an error,
displaying a red error warning.
Pressing the red warning icon will load the error screen
as shown below.

Service Log-in Screen
Service Log-In Screen
This is the Log-In Screen to access the generators
Service functions and manual mode.
Note: This is only for trained service personnel.

Information Screens
System Info Screen
Displays System Info.

Running Hours
Displays system run hours and service countdown.

Page 29

Settings Screens
Select language Screen
Allows the user to select a language for the HMI.

Select Units Screen
Allows the user to select units for pressure readings.

Service Log-in Screen
Service Log-in Screen
Allows the Peak Approved Engineer access to the
Horizen’s service menus.

Page 30

Unusual Operation
If at any time the generator begins to emit excessive noise or vibration, then it should
be switched off and you should contact Peak Scientific or the Peak Partner from which
the generator has been purchased.

Page 31

Service Requirements
Service Schedule
Purchase Interval Component
12 months

Horizen 24 Annual Service Kit

Qty.

Visit

1
www.peakscientific.com/
ordering

48 months

Horizen 24 Year 4 Service Kit

1

*On the 4th annual service of your Horizen 24 generator, the compressor needs to be
replaced, this is contained within the Year 4 service kit.
Please contact your service provider for more information.

Page 32

Service Indication
The generator will notify the user of the service interval for the internal compressor.
The generator has the following Service Indication Stages:-

Stage 1 
12 months after installation, the service indicator will show on the display.
This is to make the user aware that a service of the generator is due and should be
planned at the earliest convenience. The generator will continue to operate as normal
with the service indicator on. If the warning message has been acknowledged, the icon
will still be displayed in the corner of the HMI; pressing the icon will take the user to the
error page.

Stage 2 
If the service is not completed the generator will continue to run. After 2 weeks, the
service overdue indicator will show on the display.
This is to make the user aware that the service of the generator is now overdue and
must be completed immediately to ensure the continuous trouble free operation of
the generator. If the warning message has been acknowledged, the icon will still be
displayed in the corner of the HMI; pressing the icon will take the user to the error page.

Service Indication Reset
Once the service has been completed the Service Indication can be reset through the
service interface. This will be performed by the Peak Service Engineer or trained service
representative that completes the service operation.

Page 33

Peak Protected
With Peak Scientific you invest in not only a product but peace of mind. With a network of
certified Peak engineers stationed throughout the globe, Peak’s rapid response team are
never far away and our commitment is to keep your generator running day in, day out,
protecting your laboratory workflow.

[Peak Protected] can provide…

Installation

A dedicated Peak engineer will visit
your lab to install and setup your
generator

IQ/OQ

Certified assurance for applications
requiring documented qualification

Complete plan

Swift response by a Peak Service
Engineer within 72 hours & planned
preventative maintenance

Spares

Genuine Peak parts with express
delivery, ensuring optimal
performance and lifetime

Premium Protected

Guaranteed rapid on-site response
within 24 hours & planned
preventative maintenance

Technical Support Hotline

Around the clock support by phone
or online with our global technical
helpdesk

To find out more about protecting your investment visit: www.peakscientific.com/protected

Page 34

Cleaning
Clean the outside of the generator only using warm soapy water and a clean damp
cloth. Ensure all excess fluid is thoroughly removed from the cloth 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

Under no circumstances should any solvents or abrasive cleaning
solutions be used as these can contain fumes that could be harmful to
the generator.
Care should be taken with Leak Detections Liquids.

CAUTION

Page 35

Alarm Messages
In the event of an alarm condition a message will be displayed on the user interface
with a descriptive message and error code.
Please note the displayed error code and contact your service provider.
Major Alarm Message 
There is a problem with the generator that may prevent it from supplying gas at the
required pressure, flow or purity. In some instances the generator will automatically shut
down to prevent further damage.

Page 36

Troubleshooting
Problem

Possible Solution

The generator will not switch on and the
power switch does not illuminate.

Compressors are running but pressure is not
building.

The application is reporting low pressure.

Service indicator on the screen is active



Overdue service indicator on the screen is
active





Generator displays a major error code

Page 37



•

Ensure power cable is plugged into the
generator and that the power socket is
turned on.

•

Check the fuse in the power cable plug (if
fitted).

•

Contact your service provider.

•

Ensure that the generator is connected to
your application and is leak free.

•

If carrying out the purge run make sure
that the flow control silencer is fitted.

•

Contact your service provider.

•

Check pressure readings on the display are
showing normal pressure.

•

Ensure that the generator is connected to
the application and leak free

•

Contact your service provider.

•

The generator is due for service. Contact
your service provider.

•

Refer to Service Indication section of this
manual for further information.

•

The generator is overdue for service.

•

Contact your service provider urgently.

•

Refer to Service Indication section of this
manual for further information.

•

Ensure there is a complete, leak tight
connection between the generator and the
application

•

Ensure the flow demand on the generator
is within rated limits.

•

Contact your service provider.

Go Online or Complete and Return
We know that registering any of your recently purchased products is not the
first thing on your mind- but it is very important to both of us. Not all warranties
are alike and Peak Scientific stand out against other gas suppliers as we offer a
comprehensive, quick response, on-site warranty. This means that in the very
unlikely case that your gas generator develops a fault we have rapid support
teams on-hand around the world who are able to come to your lab and get you
back up and running in no time.
Register for your comprehensive 12 month on-site 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

Extend your cover with
Peak Scientific offer comprehensive gas generator after sales support packages.
Peak [Protected] aftercare support can guarantee an on-site response within
72 hours*, genuine parts from our ISO9001 approved factory and a 95% first-time
fix rate. See our enclosed Peak [Protected] leaflet for further information.
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






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.
Page 38

Page 39

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
Fountain Crescent
Inchinnan Business Park
Inchinnan
PA4 9RE
Scotland, UK
Tel: +44 141 812 8100
Fax: +44 141 812 8200
For further information on any of our
generator products please contact
marketing@peakscientific.com
Horizen 24 User Manual Rev 4 RSID 5113 EN 05/02/24