Page 1
User’s Manual
Nitrogen
Generator
NiGen GC
Nigen MICRO
Page 2
2
Table of contents
1. Introduction 3
2. Safety 4
3. Description of the generator 6
4. Installation 11
5. Disassembly and transport 16
6. Use 17
7. Maintenance 27
8. Troubleshooting 28
9. Guarantee 32
10. Declaration of conformity 33
11. Notes 34
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Nitrogen Generator NiGen GC Nigen MICRO
3
1.
Introduction
This document is intended for users of nitrogen generator models NiGen GC and
NiGen MICRO, and provides all information regarding installation, use , maintenance and guarantee.
The generator is intended to be used as a source of nitrogen gas for laboratory
applications, including gas chromatography, thermal analysis, ELSD, LCMS, sample preparation, etc.
The manual covers the following models:
As regards installation and maintenance, it is assumed that the user is familiar
with pneumatic circuit components, and in particular is aware of the safety aspects of compressed air and nitrogen.
The margin of the text contains the following symbols, indicating:
m
compulsory safety standards to be observed
c
electrical hazard
e
recommendations and important information
It is strongly recommended to carefully read all safety warnings (
par. 2.1.
) be-
fore carrying out any operation on the generator.
Serial number Model
422.02.0110 NiGen GC
422.02.0220 NiGen GC HC 115 V AC
422.02.0230 NiGen GC HC 230 V AC
422.02.0510 NiGen MICRO
Page 4
Safety
4
2.
Safety
e
The unit must be installed and used in observance of the instructions in this booklet. Furthermore, use of the generator must be limited to that described in
Chapter 1 Introduction
. Failure to observe the foregoing will render the guarantee null and void and release CLAIND from all liability for direct or indirect damage or physical injury.
e
The user is responsible for asking local authorities if there are local safety regulations that are stricter than what is described in this manual.
2.1.
Warnings
m
Place the generators FAR FROM SOURCES OF HEAT
m
Place the generators in an environment PROTECTED AGAINST RAIN
AND WIND
c
NEVER OPEN the generator while it is connected to the electrical
mains: RISK OF FATAL INJURY BY ELECTROCUTION
e
Repairs and inspections must be carried out exclusively by QUALIFIED PERSONNEL: in the event of faults which cannot be resolved according to the pro-
cedures listed in the TROUBLESHOOTING chapter, contact exclusively our
authorized Technical Assistance.
e
If the generator is not to be used for a prolonged period of time, it must be depressurised (par. 6.7. and par. 6.8.).
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Nitrogen Generator NiGen GC Nigen MICRO
5
2.2.
Notes on the use of nitrogen
Nitrogen is not a toxic gas, but when the percentage in the air exceeds specific
values there is a risk of asphyxia.
Therefore NEVER DIRECTLY INHALE the gas produced and avoid working in the
vicinity of a flow of nitrogen.
However, given the low quantities produced, it is sufficient that the flow of nitrogen occurs in a normally ventilated environment to avoid the risk of accumulation.
m
If the generator and the user utility are located in different rooms, the
following minimum ventilation must be provided to prevent increasing
or decreasing the oxygen content in the air:
2.3.
Safety devices
MAXIMUM PRESSURE: the control system constantly monitors the pressure.
In case of anomalous pressure, a safety valve (which operates independently of
the control system) prevents it exceeding 10.5 bar (152 psi).
MAXIMUM TEMPERATURE (
HC version only
): the purifier is fitted with an
internal catalyser, the temperature of which is constantly maintained at 420°C
To guarantee safety, a completely independent device is fitted which shuts off
power supply to the heating element when temperature values exceed 480°C
2.4.
Technical assistance
The CLAIND technical assistance can be contacted as follows:
Phone ++39 0344 56603
Fax ++39 0344 56627
Email: [email protected]
Website: filling the form on the website www.claind.it at the “Service” section
Model
Minimum generator
room ventilation
Minimum point-of-use
room ventilation
NiGen GC
NiGen GC HC
9 Nm3/h
318 SCFH
16 Nm3/h
565 SCFH
NiGen MICRO
3 Nm3/h
106 SCFH
5 Nm3/h
177 SCFH
Page 6
Description of the generator
6
3.
Description of the generator
3.1.
Equipment supplied
Unless otherwise agreed, the consignment includes:
• n°1 nitrogen generator model NiGen;
• n°1 CD user’s manual;
• n°1 applicable declarations of conformity of tank and safety valve;
• n°1 cable for the electrical mains;
• n°4 self-tapping screws;
• n°2 elastic spline;
• n°2 check pin;
• n°1 anchor plate;
• n°2 fitting for the connection of the plastic tube external diameter 6mm;
• n°1 fitting for the connection of the copper tube external diameter 1/8”.
3.2.
Technical specifications
3.2.1.
Nitrogen
(*) the flow rate is given at 20°C and 1 atm
(**) purity referred to residual oxygen
Maximum flow rate (*)
NiGen GC 0.5 Nl/min 0.5 slpm
NiGen GC HC 0.5 Nl/min 0.5 slpm
NiGen MICRO 4 Nl/min 4 slpm
Pressure
settable from 0 to
6 bar
settable from 0 to
87 psi
Purity (**)
NiGen GC up to 99.999 %
NiGen GC HC up to 99.999 %
NiGen MICRO up to 99.5 %
Page 7
Nitrogen Generator NiGen GC Nigen MICRO
7
3.2.2.
Compressed air supply, specifications
(***) for further details on the air quality, see the specifications for Class 1-4-1,
ISO 8573-1
3.2.3.
Electrical requirements
3.2.4.
Pneumatic connections
3.2.5.
Electrical connections
Pressure
minimum 8 bar 116 psi
maximum 10 bar 145 psi
Capacity
NiGen GC 6 Nl/min 6 slpm
NiGen GC HC 6 Nl/min 6 slpm
NiGen MICRO 12 Nl/min 12 slpm
Particulates: maximum concentra-
tion of particles of diameter less
than 0.1 µm (***)
less than 0.1 mg/m³
Oil concentration less than 0.01 mg/m³
Humidity dewpoint under pressure less than 3°C
NiGen GC 115-230 V~ (±10%), 1 ph, 50-60Hz;
50W
NiGen GC HC
115 V~ (±10%); 60Hz; 1ph; 200W
or
230 V~ (±10%) 50Hz; 1 ph; 200W
NiGen MICRO
115-230 V~ (±10%), 1 ph, 50-60Hz;
50W
Nitrogen outlet G 1/8" female
Compressed air supply G 1/8" female
Power supply IEC320
CAN bus IN; CAN bus OUT RJ45
Page 8
Description of the generator
8
3.2.6.
Dimensions
3.2.7.
Environmental requirements
3.2.8.
Noise
Width 38 cm 14.9”
Depth 53 cm 20.8”
Height 47cm 15.8” + 2.8”
Weight
NiGen GC
NiGen MICRO
37 kg 82 lbs
Weight
NiGen GC HC
41 kg 90 lbs
Installation site enclosed, indoors
Relative humidity up to 90%, no condensation
Use temperature from 5°C to 40°C
from 40°F to
100°F
Protection rating IP20
Noise level at 1 meter 60 dB(A)
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Nitrogen Generator NiGen GC Nigen MICRO
9
3.3.
Generator components
3.3.1.
Front view
A. CPU: generator control unit; it is the user interface by way of the touch screen;
B. FRONT PANEL, removable for maintenance operations.
FIGURE 3.3.1: Front view
Page 10
Description of the generator
10
3.4.
Rear view
C. AIR INLET: pneumatic connection for compressed air line inlet.
D. NITROGEN OUTLET: pneumatic connection for the generator’s nitrogen
delivery.
E. PRESSURE REGULATOR nitrogen delivery
F. CONNECTOR for electric power supply cable
G. POWER" KEY: ON-OFF switch; includes housing for the main fuse
H. CAN BUS IN for connection to CPU
I. IDENTIFICATION LABEL: states the model, serial number (SN) and electrical
specifications
J. VENTILATION GRILLE
K. CAN BUS OUT
L. CAN BUS ADDRESS (DIP switch)
FIGURE 3.3.2. Rear view
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Nitrogen Generator NiGen GC Nigen MICRO
11
4.
Installation
4.1.
Installation area requirements
4.1.1.
Environment
The area where the generator is installed must meet the requirements listed under
par. 3.2.7.
m
in particular, check if ventilation is adequate. Do not install the generator into a closed cabinet with insufficient ventilation.
In regards to ventilation, refer to
par. 2.2.
4.2.
Generator positioning
4.2.1.
Packaging removal
• Open the packaging from the top
• remove the box containing the accessories
• lift the generator by grasping its side handles (two people are needed for this
operation) and set it momentarily on a flat surface
• remove the support base and place it on the desk where you plan to install the
generator.
e
It is recommended to store the packaging to ensure adequate protection when
moved in the future.
If the generator is to be installed on the tower see the attached.
4.2.2.
Positioning
Position the generator on its support base (two people are needed for this operation).
m
Ensure a clearance of at least 20cm at the rear of the generator. There
must be no potential sources of sparks in this clearance at the rear of
the generator, such as: flames, electrical contacts, hot surfaces, moving parts that can generate sparks, etc.
m
To not decrease ventilation efficiency, also ensure a clearance of at least 20cm at the front of the generator.
The generatore must be positioned on the apposite base, following foregoing instructions:
• place the base in the installation site (you can adjust the plastic feet to the desired height);
Page 12
Installation
12
• position the generator on the base paying attention that the location respect the
height decrease of it;
• fasten the generator to the base (on the rear) using the screws and the anchor
plate included in the supply;
• remove the front panel and insert the check pline in the apposite holes;
• the generator shall protrude of almost 20 cm so that the linchpins can be blocked
by elastic splines.
4.3.
Pneumatic connections
4.3.1.
Air inlet
m
The compressed air supply to the generator may not exceed 10.5 bar
(152 psi).
CONNECTION
• Locate the compressed air inlet, marked “AIR INLET” at the rear of the generator;
• take fitting (1,2) and mount it;
• connect the line.
1
2
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Nitrogen Generator NiGen GC Nigen MICRO
13
4.4.
Nitrogen outlet
m
The distribution line must be made of pipe rated for a pressure of at
least 10.5 bar (152 psi).
The pipe diameter must be sized on the basis of the acceptable pressure drop
values of the utility.
e
To ensure nominal purity of the delivered gas is maintained (minimize contamination from oil residue, dust, scaling and humidity), it is recommended to use
clean and/or treated metal pipelines for final gas distribution.
CONNECTION
• Locate the nitrogen coupling, marked “NITROGEN OUTLET” at the rear of the
generator;
• take fitting (3) and mount it;
• connect the line.
3
Page 14
Installation
14
4.5.
CPU connection
• Position the CPU where it will be used, e.g. above the generator, using the supplied support;
• connect the ethernet cable to the rear of the CPU (top connector);
• connect the ethernet cable to the rear of the generator (CAN BUS IN connector);
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Nitrogen Generator NiGen GC Nigen MICRO
15
e
Additional information about the communication connections can be found in the
Stack User’s manual.
The generator can works without CPU.
4.6.
Electric power supply
c
For reasons of safety, the following instructions must be strictly observed.
The electrical installation must comply with current standards, in particular regarding the protection line/ground wire.
c
Recommendations for correct installation:
• do not use extension leads, adaptors or multiple sockets;
• always connect the protection/ground wire;
• the mains socket and switch must be located in an easily accessible position.
• if the provided power cable does not match the local plug configuration, the
proper power cable with the appropriate configuration must be obtained prior to
attempting to apply power to the unit.
CONNECTION
• Locate the power cable connector (1) at the bottom left side of the generator;
• before connecting the cable, ensure that the POWER switch is set to OFF;
• connect the power cable supplied with the generator.
1
Page 16
Disassembly and transport
16
4.7.
Warnings
e
If a failure in gas supply (due to a power failure, activation of an electrical safety
device, or generator fault), even temporary, is not admissible, a pneumatic panel
should be envisaged, to enable provisional activation of a reserve gas source (totally or partially automatic).
4.8.
Packaging disposal
It is recommended to store the original packaging to ensure adequate protection
for the purifier when moved in the future.
5.
Disassembly and transport
5.1.
Disassembly
• Stop the generator
(par. 6.7.);
• wait for depressurization (about a minute);
• switch off the generator
(par. 6.8.);
• disconnect the electric power cable;
• close all valves (air inlet, tanks) and detach the pneumatic connections.
5.2.
Transport
e
Remember that during transport the generator must always remain in a vertical
position.
If conserved, use the original packaging; otherwise use a pallet of adequate dimensions to hold the generator, affixing instructions in visible locations, such as:
THIS WAY UP, KEEP IN VERTICAL POSITION.
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Nitrogen Generator NiGen GC Nigen MICRO
17
6.
Use
6.1.
Operator interface
TOUCH SCREEN
The CPU screen enables the user to interact with the generator, i.e. give specific
commands or display and set parameters.
The table shows the function of the various keys on the screen:
Key Function
CPU access to CPU menu
PREVIOUS go to previous page
NEXT go to following page
ALARM access to list of alarms
WARNING access to list of warnings
RESET reset of alarms and warnings
MAINTENANCE go to maintenance request description
MENU access to different menus
ESC exit from menu
Page 18
Use
18
e
do not press on the touch screen with sharp objects
START start the production of gas
STOP stop the production of gas
INCREASE increase the value
DECREASE decrease the value
ADD add one digit
DELETE delete last digit
OK confirms modified value
Key Function
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Nitrogen Generator NiGen GC Nigen MICRO
19
6.2.
Menus
The following chart shows the accessible menus for the operator:
Page 20
Use
20
6.3.
LED warning light
In addition to the information on the CPU screen, a LED warning light on the
front panel
(par. 3.3.1.)
indicates the operating condition of the generator.
The LED is yellow in the READY TO START condition.
The LED is green in the PRODUCTION condition.
The LED is flashing red in case of an error condition
(par. 8.4.).
6.4.
Initial start-up
1. Check that all connections are made as specified in
par. 4.1. Installation area
requirements
2. close the nitrogen line downline of the generator
3. switch on the generator, by setting the POWER switch to ON (see
par. 6.5.
Generator start-up
)
4. start nitrogen production by pressing the START key (see
par. 6.6. Nitrogen
production
)
5. wait approximately 15 minutes, until the generator reaches the Stand-By
status. In this state, the generator suspends normal production, showing the
following page:
6. from this point the nitrogen is available for the line, by opening the valve closed
in point 2.
e
For the model NiGen GC HC, it is suggested to supply gas to the application only
when the catalyzer has reached the operating temperature (approx 45 minutes
after switch ON)
e
WARNING: On initial start-up, the internal nitrogen storage tank will initially contain air. For this reason, the line should be vented with the gas (for approx. 60
minutes) before employing the nitrogen for the application utility.
Page 21
Nitrogen Generator NiGen GC Nigen MICRO
21
6.5.
Generator start-up
To switch on the generator, put the start button on the rear of the generator in
position I: the CPU screen lights up.
After the LOGO page is shortly displayed, the GENERATORS LIST page appears
Press on the generator of interest.
The READY TO START page appears
6.6.
Nitrogen production
To start production, press the operation key START
Page 22
Use
22
The following page appears
Only in the model NiGen GC HC
e
Before starting the production you have to waith 45 minutes, becose the temperature of the catalyst need reach at least 350°C. if it doesn’t reach this temperature there is a risk that the air isn’t enought purified.
If the catalyst isn’t operating the following page is displayed.
To reset the alarm, press the RESET key.
6.7.
Stop the generator
At any time during production the generator can be stopped by pressing the key
STOP.
Page 23
Nitrogen Generator NiGen GC Nigen MICRO
23
The generator depressurizes the molecular sieves columns, showing the following page:
When the depressurization is completed (it lasts approximately one minute), the
display shows the following page:
6.8.
Generator shutdown
After stopping the generator
(par. 6.7.)
, wait for the system to complete depressurization (approximately 1 minute), then put the main swotch on the rear of the
generator in position 0.
e
Avoid turning off the generator directly, without first stopping the production as
described in par. 6.6.
Page 24
Use
24
6.9.
Parameter display
6.9.1.
Outlet pressure display
The pressure in the outlet line is visible on the main page
6.10.
Parameter settings
e
Modifying the parameters affects plant operation. Make sure you are fully aware
of the effects of any changes before modifying the parameters
6.10.1.
Adjusting the gas delivery pressure
e
the pressure can be adjusted from 0 to 6 bar ( 0 to 87 psi)
• identify the delivery pressure regulator on the rear of the generator;
• pull the pressure regulator knob out to release it;
• set the pressure by turning the knob clockwise to increase, counterclockwise to
decrease it. To visualize the outlet pressure, see
par. 6.9.
;
• lock the knob by pressing it down.
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Nitrogen Generator NiGen GC Nigen MICRO
25
6.10.2.
Selecting measuring units
The CPU allows the selection of different measuring units for temperature and
pressure.
To perform the selection, press the CPU key
the following page appears:
Press MEASURE UNIT.
Select the desired measuring unit for pressure
or go to the next page using the NEXT key
Select the desired measuring unit for temperature
Page 26
Use
26
To exit this menu, press the ESC key
6.11.
Adjustment of the display contrast
To increase the legibility of the LCD display, press the CPU key
the following page appears:
Press LCD CONTRAST
Adjust to the desired value.
To exit this menu, press the ESC key
Page 27
Nitrogen Generator NiGen GC Nigen MICRO
27
7.
Maintenance
To maintain generator efficiency and reduce the risks of faults, strictly observe
the recommended maintenance schedule
(par.7.2.)
.
In the generator there is a counter that, in relation to the hours of operation of
molecolar sieves, informs the customer when is necessary do the maintenance
by an allarm
(par.8.)
.
First maintenance will be done to 8000 hours, the following maintenance will be
set by a qualified personnel that did the intervention.
7.1.
Maintenance kit
The following kit for the maintenance of the generator are available. They have
to be substituted after the following time intervals:
7.2.
Maintenance schedule
e
If a correct maintenance schedule is not followed, the performance of the generator may no longer be ensured and it may lead to permanent damage to the
generator.
e
The maintenance operations must be carried out exclusively by QUALIFIED PERSON.
e
Lack of maintenance will void the warranty.
The following table specifies the frequency of the recommended maintenance
operations, express in “working hours” of molecolar sieves.
Type and quantity maintenance kit selection
Part number Description
Maintenance interval
0 - 8000 h 0 - 16000 h
422.93.0003 Maintenance kit 8000 h 1 1
422.93.0022 Maintenance kit 16000 h 1
Components use versus maintenance plan
Part number Description
8000 h 16000 h
R061040 CMS silencer 1/4” 1 1
Maintenance kit to be used -> 422.93.0003 422.93.0022
Page 28
Troubleshooting
28
8.
Troubleshooting
8.1.
Alarms
The generator informs about a malfunction or the necessity of intervention in
two different ways: warning or error .
WARNING
It indicates a condition that may require the intervention of the operator, but gas
production is not shut down.
In WARNING status:
• an acoustic signal is emitted;
• the following page is displayed
ERROR
It indicates a condition that prevents continuation of gas generation. The generator shuts down production and depressurizes the generation module.
In ERROR status:
• an acoustic signal is emitted;
• the LED on the front panel is intermittent red;
• the following page is displayed
Page 29
Nitrogen Generator NiGen GC Nigen MICRO
29
8.2.
Reset and identification of an alarm
To shut off the acoustic signal, press the alarm page (WARNING yellow page or
ERROR red page)
WARNING
To visualize a warning message, press on the WARNING symbol
the following page will appear
to find the active warning, scroll down the pages using the NEXT key
active warnings are those highlighted; once the warning is identified, follow the
instructions in the following chapter.
To reset the worning, press the reset key.
ERROR
To visualize an error message, press on the ERROR symbol
Page 30
Troubleshooting
30
the following page will appear
active errors are those highlighted; once the error is identified, follow the instructions in the following chapter.
To reset the alarm, press the RESET key
Page 31
Nitrogen Generator NiGen GC Nigen MICRO
31
8.3.
List of warnings
8.4.
List of errors
warning
identification
cause resolution
W-00 : data loss
the memory has lost the set
up values of the parameters
and has restored the default
values
contact service in order to
set the correct values of the
parameters
W-01 : low outlet pressure
outlet pressure below threshold
reduce outlet flow
W-02 : maintenance required
maintenance counter has
decreased to zero
check maintanance schedule; perform the requested maintenance operation;
restore related maintenance counter according to
table at
par. 7.2.1.
W-03 : catalyzer warm-up
time over
the catalyzer has not reached the set-point temperature
contact service
W-04 : low catalyzer temperature
the catalyzer can not maintain the set-point temperature
contact service
error
identification
cause resolution
E-00 type error generator not identified
assign a number to the
generator (
see Stack user’s
manual
)
E-01 low inlet pressure
inlet air pressure below
minimum operative value
increase inlet air pressure
E-02 high inlet pressure
nlet air pressure above
maximum acceptable value
decrease inlet air pressure
E-03 hight catalyzer temperature
catalyzer temperature above
maximum acceptable value
contact service
E-04 communication fault
control board can not read
data
contact service
Page 32
Guarantee
32
9.
Guarantee
The conditions of guarantee are as follows:
For duration of the guarantee period , see Claind’s General Sales Conditions.
The guarantee includes the cost of materials and labour.
The guarantee is EX WORKS CLAIND and therefore does not include any callout
costs for technicians to visit the client’s premises.
The guarantee covers exclusively COSTS DERIVING FROM MANUFACTURING
DEFECTS and does not include:
1. Use of non original consumable or spare sparts;
2. Damage caused by negligence or improper use of the equipment;
3. Damage caused by inadequate electric power supply;
4. Damage caused by natural catastrophes (e.g. fire);
5. Damage caused by transport;
6. Damage caused by compressed air with inadequate properties.
The guarantee is rendered null and void in the event of intervention by unauthorised personnel on the equipment.
Page 33
Nitrogen Generator NiGen GC Nigen MICRO
33
10.
Declaration of conformity
MO10MCC Emiss. 26/10/2012
',&+,$5$=,21(',&21)250,7$¶
(DECLARATION OF CONFORMITY)
Con la presente dichiariamo, sotto la nostra esclusiva responsabilità,
che le seguenti apparecchiature:
(By this letter we declare, under our responsibility, that the following apparatus:)
CODICE
(Part number)
VERSIONE
(Version)
DESCRIZIONE
(Descritpion)
422.02.0110
2
NiGen GC 115/230V 50/60Hz
422.02.0220
2
NiGen GC HC 115V 50/60Hz
422.02.0230
2
NiGen GC HC 230V 50/60Hz
422.02.0510
2
NiGen MICRO 115/230V 50/60Hz
alla quale questa dichiarazione si riferisce, è conforme con quanto
stabilito dalle seguenti disposizioni, in particolare:
(to which this declaration regards, is fully in conformity with the following rules:)
2014/30
UE
EMC Direttiva compatibilità elettromagnetica
(Electromagnetic compatibility directive)
2014/35
UE
Direttiva bassa tensione
(Low voltage directive)
2014/68
UE
Attrezzatura in pressione Gruppo 2, Categoria 1°, Modulo A
TS=60°C. PS= 11 bar, V=6 dm3
(Pressure equipment group 2, Category 1°, Modul A)
Tremezzina, 19/07/2016
Firma del legale rappresentante
(Signature of legal representative)
Giovanni Cogotzi
Via Regina 24, 22016 Tremezzina
Loc. Lenno (CO) Italy
Tel. ++39-0344-56603
Fax. ++39-0344-56627
e-mail: [email protected]
www.claind.it
Page 34
Notes
34
11.
Notes
Page 35
Claind srl
Via Regina, 24
22016 Tremezzina Loc. Lenno (CO) - Italy
Tel +39 0344 56603
Fax +39 0344 56627
e-mail [email protected]
UM NiGen GC NiGen MICRO en G.fm
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