GAS N2-Generator User manual

USER MANUAL
G.A.S. Gesellschaft für
analytische Sensorsysteme mbH
N2-Generator

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Version 1.0.3, February 2021
All data, texts, designs, images and other elements used in this user manual are
protected by copyright law. Any infringement may be subject to legal action.
Passing it on to third parties and producing copies of any kind or form –on the whole
or in parts - is not permitted without written agreement of G.A.S. Any infringement may
be subject to legal action.
G.A.S. reserves the right to realize technical changes to the product without explicitly
mentioning them.
CE-Marking according to:
International Standard EN ISO 17050-1:2004
Directive 2014/35/EU (Low voltage directive);
Directive 2014/30/EU (Electromagnetic compatibility);
Directive 2011/65/EU (RoHS);
Directive 2012/19/EU on waste disposal (Waste Electrical and Electronic
Equipment –WEEE)
© Copyright 2020
G.A.S. Gesellschaft für analytische Sensorsysteme mbH
44227 Dortmund - Germany
All Rights Reserved.

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Table of Content
1General Information ............................................................................................. 5
1.1 Information about the Manual........................................................................ 5
1.2 Explanation of Symbols................................................................................. 5
1.3 Notation for dialogs, elements and references .............................................. 6
1.4 Scope of Supply ............................................................................................ 7
1.5 Liability and Guarantee.................................................................................. 9
1.6 Copyright....................................................................................................... 9
1.7 Return and Disposal...................................................................................... 9
1.8 Customer Service.......................................................................................... 9
2Safety................................................................................................................. 10
2.1 Intended Use Only....................................................................................... 10
2.2 Responsibility of Operator........................................................................... 11
2.3 Requirements of Personnel......................................................................... 11
2.4 Dangers....................................................................................................... 12
3Transport, Packing and Storage ........................................................................ 12
3.1 Inspection after Transport............................................................................ 12
3.2 Packing........................................................................................................ 13
3.3 Storage and Transport................................................................................. 13
4Cleaning and Maintenance ................................................................................ 14
4.1 Cleaning...................................................................................................... 14
4.2 Maintenance................................................................................................ 14
5Description of the N2-Generator unit.................................................................. 15
5.1 Purpose of the device.................................................................................. 15
5.2 Dimensions.................................................................................................. 15
5.3 Overview of the appliance........................................................................... 16
5.4 Installation and operation requirements....................................................... 18
6Commissioning .................................................................................................. 19
6.1 Starting the operation the first time.............................................................. 19
6.2 Shutting down.............................................................................................. 20
6.3 Returning the appliance for service and/or repairs...................................... 20

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7Operation........................................................................................................... 21
7.1 User Interface.............................................................................................. 21
7.2 Alarms and Signals...................................................................................... 22
7.2.1 Pre-alarm.............................................................................................. 22
7.2.2 Alarm .................................................................................................... 23
8Workflow: Installation of N2-Generator............................................................... 25
9Maintenance ...................................................................................................... 27
9.1 N2-Generator............................................................................................... 28
10 Appendix......................................................................................................... 29
10.1 Technical Data N2-Generator................................................................... 29
10.2 Troubleshooting ....................................................................................... 31

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1 General Information
1.1 Information about the Manual
This manual describes a safe and adequate handling of the device. Following the
instructions of the indicated safety aspects and instructions as well as the national
and/or local rules and general safety regulations concerning the prevention of
accidents are absolutely imperative.
Before starting the work with the device read the manual completely and thoroughly
particularly the chapter security and respective safety references. Assure that you/the
operator comprehend the terms described.
The manual is part of the device. It must be stored together with and next to the device
at any time.
INFORMATION!
The graphics in this user manual are schematic and may differ from
the actual conditions. The firmware and PC software screenshots in
this user manual may differ from the actual conditions.
1.2 Explanation of Symbols
Important and safety-relevant references in this manual are characterized by symbols.
These indications which are in-line with industrial safety must be respected and
followed at any time.
INFORMATION
This symbol calls information, which are to be considered for efficient
and perfect handling of the equipment.
WARNING
This symbol indicates references, which can lead to damages,
malfunctioning and/or loss of the device.

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DANGER
This symbol marks references, which can lead to health impairments,
injuries, lasting body damages or to death due to electric current.
1.3 Notation for dialogs, elements and references
Example Dialog:
System ›Connections ›LAN File Transfer ›Settings… ›Test Connection
Example Elements:
Gas Out, Sample gas in
Example: References
Advanced User Manual, Chapter 5.1 Installation Reguirements
Example: Information
keep the transport box

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1.4 Scope of Supply
Assure that you have received the full scope of supply. If there is any part missing,
please contact the GAS-hotline immediately.
Standard Scope of Supply
N2 Generator (1 piece)
Power plug (1 piece)
USB-Stick Box with Documents (1 piece)

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User Manual (1 piece)
Transport box (1 piece)
Transport palett (60 x 80 cm)
INFORMATION!
It is recommended to keep the transport box for a safety return
transport.

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1.5 Liability and Guarantee
This user manual describes the safe and proper handling of the device.
All data and reference within this manual are compiled under the valid regulations, the
state-of-the-art as well as G.A.S. experiences of several years.
This user manual must be stored together with and close to the device at any time and
accessible to all persons, who operate or handle the device at any time.
This user manual must be read carefully before starting to work with the device. G.A.S.
does not assume any liability for damage and disturbances, resulting from disregard of
the instructions contained in this user manual. All claims of any kind related to damage
from a not intended use of the device will be rejected.
G.A.S. reserves the right to realize technical changes of the product due to
improvements without explicitly mentioning them.
1.6 Copyright
The manual is confidential. It is beyond doubt exclusively made and also meant for the
personnel directly dealing with the equipment. All data, texts, designs, pictures and
other representations within this manual areprotected in the sense of the copyright law
and are subject to further commercial patent rights. Each abusive is punishable by law.
Passing it on to third persons as well as duplications in any kind and form - also in part
- as well as the use and/or report of contents are not permitted without written
agreement of the manufacturer. Offences lead to payment of damages. We reserve
ourselves all rights of the practice of commercial patent rights.
1.7 Return and Disposal
For an adequate disposal, the device or/and its equipment must be returned to the
G.A.S. or to a third party authorized by the G.A.S.! For questions please contact G.A.S.
1.8 Customer Service
For questions concerning G.A.S. products a customer service is available:

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G.A.S. Gesellschaft für analytische Sensorsysteme mbH
Otto-Hahn-Straße 15
44227 Dortmund
Germany
Phone: +49 (0) 231 / 97 42 - 65 50
Fax: +49 (0) 231 / 97 42 - 65 55
[email protected]
The telephone hotline is available from monday to friday from 9:00 to 16:00 hours. In
urgent cases or if you use fax or email please provide a telephone number for
callbacks.
2 Safety
2.1 Intended Use Only
WARNING!
Usage other than described in this manual may damage the device
and/or harm persons involved.
Do not use the device for other purposes. Damages due to misuse
are not covered by the guarantee. Such damage claims will be
rejected.
The device and its equipment are not certified for the employment in
areas with explosive gas air mixtures.
All claims or requirements of any kind against the manufacturer and/or its authorized
persons that arise due to damages from a not intended use of the device will be

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rejected. All damages that arise from a not intended use are of the operator’s
responsibility.
The intended use of the equipment and its correct handling according are described in
the operating instructions of this manual. Other parts than the parts belonging to the
scope of supply, may only be used after G.A.S. approval.
2.2 Responsibility of Operator
The device may only be operated in a perfect technical condition. Before putting the
device into operation the condition of the device and its equipment must be checked.
The information and instructions provided in this manual have to be followed at any
time.
Besides the instructions provided in this manual the local rules for the prevention of
accidents, general safety regulations - valid for the area of application of the device -
as well as the valid environmental-protection regulations must be considered and
respected.
The responsible technicians and operators have to make sure a failure-free use of the
device. Responsibilities among the involved persons regarding installation, operation,
maintenance and cleaning must be made clear.
2.3 Requirements of Personnel
Only authorized and trained technical personnel may work with the instruments. The
operator must have received an instruction over existing and all possible dangers and
should be regularly instructed in safety procedures and environmental protection and
that the personnel is fully aware of the complete operating instructions and particularly
the safety notes. Personnel that might be under the influence of drugs or alcohol are
to be kept off the device at any time.
Technical personnel in this context are defined as skilled employees who are
knowledgeable due to their educational background. In case the foreseen personnel
do not have the necessary qualifications to operate the instrument, it must be trained.
Further to that non-authorized personnel should not operate the device.
The competencies for the work on and with the device must be specified and kept
undoubtedly at any time so that with respect to security issues no unclear situation
might come up.
Any changes of the equipment, which impair security of the personnel, must
immediately be reported to the operator and every person dealing with it.

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2.4 Dangers
The device and its equipment is subject to an endangerment analysis. The construction
and execution of the device corresponds to the today's state-of-the-art. The device is
reliable in service when operated according to its intended use.
DANGER
Exercise great care in handling current-carrying parts like the power
supply cord. Do not get directly in touch with current-carrying parts.
Do not open the housing. Do not use damaged parts.
INFORMATION!
If the housing of the device is damaged, the device must not be used
anymore and must be returned to the G.A.S. by using the original
transportation case.
DANGER
Exercise great care in handling current-carrying parts like the power
supply cord. Do not get directly in touch with current-carrying parts.
Do not open the housing. Do not use damaged parts.
3 Transport, Packing and Storage
3.1 Inspection after Transport
Check the supply immediately after delivery concerning its completeness and/or
transport damages. If you detect externally visible transport damage, do not receive
the supply, or only under reservation. State the extent of the damage on the provided
delivery note and/or the transportation documents of the feeder. Generate a complaint.
Lodge a complaint of covered defect immediately after recognizing, as claims due to
transport damages can only be made valid within the complaint periods (usually 7
days).

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3.2 Packing
If no return agreement regarding the packing was agreed upon dispose the packaging
material always in an environmentally friendly way and according to valid local
regulations. If necessary, ask a recycling company.
INFORMATION!
It is recommended to keep the transport box for a safety return
transport.
3.3 Storage and Transport
Store the device only under the following conditions:
•When not in use store the equipment in the supplied casing
•Prevent unauthorized access
•Do not store outside
•Protect the equipment from moisture and dust
•Put protective caps on all gas sockets
•Avoid mechanical vibrations
•Do not expose the equipment to aggressive substances
•Protect the equipment from direct sun light
•Storage temperature: 5 to 35 °C
•Relative Air Humidity: <80%Rh, non condensing
•Instrument’s position: Horizontal
The equipment should be moved only within the provided carrying case. By this
means, transport damages can be avoided. The above mentioned values are
considered for an instrument transported in its original new packing.

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WARNING!
Protective caps should be put on gas sockets in case the device is
stored or transported.
4 Cleaning and Maintenance
Natural aging and the wear of certain components of the equipment require a regular
cleaning and maintenance.
4.1 Cleaning
Clean the device only with a dry or easily damp cloth.
WARNING!
Do not use cleaning agents, which contain solvents, acids or bases.
4.2 Maintenance
INFORMATION!
Maintenance of the device should only be carried out at G.A.S. or
through specially trained and by G.A.S. authorized personnel.
The recommended maintenance interval is 12 months.

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5 Description of the N2-Generator unit
5.1 Purpose of the device
The purpose of the N2-Generator is generating high purified nitrogen for supply of
G.A.S. measuring devices used typically in positive ion mode.
Nitrogen generators replace the use of inconvenient cumbersome high pressure gas
cylinders as a source of hydrocarbon-free air. Eliminating the use of gas cylinders
allows to reduce annual operating costs.
This system is engineered to be easy to install, requires only little annual maintenance
and can be used in laboratories and/or light industrial environments.
INFORMATION
Any use of the device, that differs from the intended purpose will be
regarded as “out of purpose”. Any claims of any kind against G.A.S.
or her associates that are related to damages from use not covered
by the aforesaid will be rejected.
5.2 Dimensions
Model
Net weight (kg)
Gross weight (kg)
N2-Generator
27
30

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A
48 cm
19”
B
18 cm
7.1”
C
54cm
21.1”
56 cm with front handles
22”
5.3 Overview of the appliance
All connections, electric and air, are made at the back panel. Refer to the figure below.
Front view
Rear view
.
#
Description
1
Front panel
ON/OFF LED START/STOP button
2
Status LED
3
Alarm LED
4
START/STOP button

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5
Rear panel
N2 Outlet pressure regulator with gauge
6
N2Outlet
7
RS485
8
RS 232
9
Power switch
10
Power connector
11
Fuse
12
Cooling fan air

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5.4 Installation and operation requirements
INFORMATION!
•The nitrogen generator should be positioned on a flat surface that
is not exposed to vibrations and able to withstand a weight
greater than 50 kg
WARNING!
•Do not position the generator near flames or other heat sources
•Always leave sufficient clearance for the circulation of air around
the appliance (about 10 cm), above all at the rear (about 20 cm),
where the ventilation air intake is located (as shown in the picture
below).
•Do not use the generator in a sealed environment or without
suitable ventilation
•Do not use the appliance in temperature and humidity conditions
outside of the limits specified for operation
DANGER
•Make sure that the characteristics of the mains power supply are
adequate for the power ratings indicated in the table of technical
specifications
•Power to the appliance must be turned on only after installation

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work has been completed
•The power line should be fitted upstream with a suitable device to
protect against short-circuits and earth leakage and isolate the
appliance from other equipment
•Use cables with double insulation, in accordance with the
standards in force in the country concerned
•The appliance must be earthed.
INFORMATION!
The manufacturer is not liable for any damage caused by failure to
earth the appliance.
6 Commissioning
6.1 Starting the operation the first time
INFORMATION!
Before operating the N2-Generator for the first time, proceed as
follows:
•Remove the cap on the N2 outlet on the rear of the generator (6)
•Connect the power cable to the power socket (10)
•Turn the appliance on at the power switch (9)
•Start production pressing the Start / Stop button. After a delay
time of 90 sec the device starts.
•If necessary, set the outlet pressure at the outlet pressure
regulator (5)
•Run the device for about 10 min before connecting the nitrogen
outlet (6) to a device.
•Up to 48 h purging time is necessary for the initial installation.
•It is recommended to run the system for about 16h before starting
a measurement.

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6.2 Shutting down
INFORMATION!
List of operations to be performed before powering off the
generator at the power switch:
•Hold the Start / Stop button to stop the Nitrogen generation
•Wait at least 4 minutes
•Turn off the power switch (9)
•Disconnect the power cable (10)
6.3 Returning the appliance for service and/or repairs
INFORMATION!
List of operations to be performed before packaging the appliance
and sending it to service:
•Switch the generator OFF pressing the START / STOP button
•Wait at least 4 minutes to de-pressurize all internal nitrogen
circuits
•Wait at least 60 minutes (the Generator is powered-on but it
does not produce nitrogen) to allow the complete cooling of
the internal oven (where expected)
•Turn off the power switch (9)
•Unplug the power cable (10)
•Disconnect the nitrogen tubing (6)
•Insert the cap (6)
•Place the generator in the original packing.
WARNING!
•The generator contains hot elements. Make sure it has fully
cooled down before packing and sending it.