Matheson NM Series Manuel utilisateur
MATHESON TRI-GAS
Keystone Drive
Montgomeryville, PA 18936
Phone: 215-641-2700
Fax: 215-641-2714
Email: [email protected]om
Hydrogen generator model NM Series II
User’s manual
Rev. E March 2008
This manual provides operation and maintenance instructions for model NMH2-100, NMH2-
160, NMH2-250, NMH2-300, NMH2-500, NMH2-600 and NMH2-1000 hydrogen generators.
Hydrogen Generator NM Series 2 User’s Manual
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Index
INDEX.................................................................................................................................................................... 1
INTRODUCTION................................................................................................................................................. 2
SPECIFICATIONS .................................................................................................................................................. 2
NOTES ON FCC COMPLIANCE.............................................................................................................................. 3
CORRECT USE...................................................................................................................................................... 3
PACKING LIST...................................................................................................................................................... 4
DESCRIPTION..................................................................................................................................................... 5
INSTALLATION.................................................................................................................................................. 6
RECEIVING THE GENERATOR ............................................................................................................................... 6
PLACING THE GENERATOR................................................................................................................................... 6
GAS CONNECTIONS.............................................................................................................................................. 6
ELECTRICAL CONNECTIONS................................................................................................................................. 7
INITIAL START-UP............................................................................................................................................ 8
FILLING THE WATER TANK................................................................................................................................... 8
INSTALLING THE DEIONIZER BAG......................................................................................................................... 9
OPERATION ...................................................................................................................................................... 10
LAYOUT OF THE START UP DISPLAY .................................................................................................................. 11
MENU TREECONFIGURE PARAMETERS.............................................................................................................. 13
CONFIGURE PARAMETERS................................................................................................................................. 14
DIAGNOSTIC DISPLAY ........................................................................................................................................ 15
SPECIAL FUNCTIONS .......................................................................................................................................... 15
LIST OF MESSAGES ........................................................................................................................................ 16
STATUS MESSAGES............................................................................................................................................ 16
PRE-ALARM MESSAGES..................................................................................................................................... 16
ALARM MESSAGES............................................................................................................................................ 17
MAINTENANCE................................................................................................................................................ 18
ROUTINE MAINTENANCE ................................................................................................................................... 18
CLEANING ......................................................................................................................................................... 18
WATER REFILLING............................................................................................................................................. 18
DEIONIZER BAG REPLACEMENT......................................................................................................................... 18
LONG TIME STORAGE ........................................................................................................................................ 18
OPTIONS............................................................................................................................................................. 19
REMOTE CONTROL ............................................................................................................................................ 19
CASCADING....................................................................................................................................................... 21
AUTO REFILL..................................................................................................................................................... 24
RETURNING THE UNIT.................................................................................................................................. 25
SPARE PARTS LIST.......................................................................................................................................... 26
Hydrogen Generator NM Series 2 User’s Manual
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Introduction
Specifications
Model NMH2-100 0-100 cc/min at STP
Model NMH2-160 0-160 cc/min at STP
Model NMH2-250 0-250 cc/min at STP
Model NMH2-300 0-300 cc/min at STP
Model NMH2-500 0-500 cc/min at STP
Model NMH2-600 0-600 cc/min at STP
Hydrogen flow rate at STP.
STP: Standard temperature and
pressure:
(20°C / 1 bar absolute)
(68°F / 14.4 PSI absolute)
Model NMH2-1000 0-1000 cc/min at STP
Max outlet pressure 10.5 bar (155 psi)
Purity 99.9999%
Weight (dry) NM 100 - 160 – 250 - 300 17.5 kg
NM 500 - 600 19 kg
NM 1000 20 Kg
Power consumption Heat Dissipation
BTU/h
Model NMH2-100 090 VA 184
Model NMH2-160 115 VA 235
Model NMH2-250 160 VA 328
Model NMH2-300 200 VA 410
Model NMH2-500 300 VA 615
Model NMH2-600 340 VA 697
Model NMH2-1000 480 VA 984
Input voltage 120 or 240V / 50-60Hz selectable
Fuse (5x20) 4A SLB @ 240VAC / 6.3A SLB @120 VAC
Pressure accuracy 0.1 bar (± 0.5 %) (1.4 PSI)
Microprocessor controlled display Graphic display, 128 x 64 pixels
Index of protection IP2x
Operating conditions:
- Temperature
- Relative humidity 15°C to 40°C ( 59°F to 104°F)
0-80%, non condensing
Storage Temperature 2°C to 60°C (35°F to 140°F)
Over voltage category II
Pollution degree 2
Sound pressure level 46 dB(A)
Case dimensions 230 x 355 x 410 mm (WxDxH)
Hydrogen Generator NM Series 2 User’s Manual
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Notes on FCC compliance
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference in a residential installation. If not in-
stalled and used according the “Installation Instructions”, the instrument may cause harmful in-
terference to radio communication equipment or other electronic devices. If there is any indi-
cation of interference, just turn the instrument off and see if the problem(s) disappears. If the
problem remains, consult with the instrument supplier for corrective action
WARNING!
Any changes or modifications to this equipment not expressly approved by Matheson Tri-
Gas’ will void the Warranty obligation and in no case will Matheson Tri-Gas be liable for
incidental or consequential damages, loss of use, loss of production or any loss incurred.
Correct use
The Hydrogen generator is designed to produce hydrogen for laboratory use. The unit must
only be operated for this purpose, according to the specifications and instructions provided in
this manual. In particular, the following rules should be observed at all times:
Indoor use only
Never store the unit in temperatures below 2°C (35°F) This will cause irreversible
damage to the electrolysis cell !!!
Only use pure water (see “Filling the water tank”)
Only operate the unit in a room with sufficient ventilation (see “Placing the unit”).
Always depressurize (put in standby) before shutting down the unit.
Unplug the unit from the mains power supply before accessing the internal compo-
nents for replacement. Note: Service should only be done by qualified technicians.
Hydrogen Generator NM Series 2 User’s Manual
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Packing list
List of items included in the shipment
Quantity Description
1 Hydrogen generator
1 Instruction manual (on CD)
1 Deionizer triangle bag MDI-TBAG
1 Water drain with flexible tubing MHSE-0059-XX
1 Power cable MLCD-0004-XX
Hydrogen Generator NM Series 2 User’s Manual
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Description
The hydrogen generator produces pure hydrogen (and oxygen as a by-product) by the elec-
trolysis of water. The key element of the generator is an electrochemical cell assembly which
contains a solid polymer electrolyte. No free acids or alkalines are used. De-ionized or pure,
distilled water is the only liquid which may come into contact with the cell. As water is con-
sumed it must be refilled from time to time as required.
The generated hydrogen gas is accumulated in the hydrogen/water separator and is dried by
passing through the automatic dryer. The internal pressure (11.0 Bar / 160PSI) is controlled
by the amount of hydrogen generated by the cell. The outlet pressure is controlled by a pro-
portional valve.
Safe operation is guaranteed by the following safety features:
- Overpressure Valve
- Intelligent pressure monitoring
- The hydrogen production is automatically stopped, when no hydrogen is needed,
or there is a large leak in the output line.
Fig. 1
Water
Tank
H2GLS
low
press.
H2GLS
high
press.
O2GLS
low
press.
Dryer
Cell
Int. Press. Sens.
Ext. Press. Sens.
H2
Pressure
relief
H2Outlet
H2Vent
O2Vent
Drain port / Autorefill
connector
Hydrogen Generator NM Series 2 User’s Manual
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Installation
Receiving the generator
All units have been carefully inspected before transport. Visual checks for damage and func-
tional tests should be performed upon receipt. Any damage has to be immediately noted and
reported to the shipping agent and supplier. The generator has to be returned according to
the shipping instructions provided.
Placing the generator
The hydrogen generator should be placed on a flat, level, vibration-free, shock-free surface.
Do not place the generator over or near a source of heat, as this may cause the device to
overheat. The unit should not be in contact with any other objects on any side, and the air
inlet must not be blocked. Leave at least 30 cm of free space at the rear for ventilation.
Do not operate the generator in a sealed or unventilated room, or in close proximity to open
flame or other sources of ignition. The ambient temperature (preferable stable) has to be be-
tween 15°C. (59°F) and 40°C (104°F).
WARNING!
Compared to cylinders, the gas volume of the generator is very small.
However precautions for any hydrogen supply should be taken when using the generator.
DO NOT use the generator in sealed or unventilated rooms, neither use it in close
proximity of open flames or other sources of ignition.
Gas connections
Pure dry hydrogen at regulated pressure is available at the hydrogen outlet port at the rear
of the generator. This port must be connected to 1/8" SS or copper tubing using the appro-
priate Swagelock fittings. Teflon tubing is not suitable. The pressure at this port is adjusted
via the keyboard and shown on the display. The hydrogen relief port at the rear of the unit
can be connected to an exhaust hood or other vent system.
WARNING!
The line from the relief port (over pressure) should never be connected in such a way that
back pressure can develop.
Hydrogen Generator NM Series 2 User’s Manual
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Fig.2
Electrical connections
Check the setting of the voltage selector on the rear of the unit. The set voltage is indicated
by the white arrow. To change the voltage, proceed as follows:
Using a small screwdriver, remove the voltage selector insert.
Replace the voltage selector insert so that the white arrow points to the correct volt-
age.
Use only 240 VAC or 120 VAC setting!
Fig. 3 Fig. 4
Fig. 5
IMPORTANT!
Remove the plugs from the oxygen vent and
hydrogen vent before operating the unit.
Keep these plugs for transporting the unit.
(For return of the unit to the factory)
Hydrogen Generator NM Series 2 User’s Manual
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Initial start-up
Filling the water tank
To fill the water, remove the cap under the slider on the water tank (Fig. 6). Carefully fill the
tank with distilled or deionized water. The conductivity of fresh water, used in the generator,
should not exceed 2S.
Note : During operation the conductivity can increase. This is normal, but if the value
succeeds 20 uS, it is recommended to replace the deionizer bag.
Fill the tank to the maximum level indicator. Close the slider cap.
WARNING!
Do not fill the water tank higher than the marked max level.
CAUTION!
It is important to use only deionized or distilled water in the generator. Standard water
containing impurities will contaminate and damage the cell, and will void the warranty.
Fig. 6 Fig. 7
Note: The blue light produced by LED’s on the Main board make it easier to see the
water level in the tank.
Hydrogen Generator NM Series 2 User’s Manual
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Installing the deionizer bag
The triangle deionizer bag has been designed for a higher water purifying capacity. It is rec-
ommendable to use this bag for new generators, in the first 4 to 6 months of operation.
After this time you can use the standard deionizer bag (see “spare parts”).
Fig. 8 Triangle deionizer bag Fig. 9 Standard deionizer bag
After having filled the tank with water, the triangle deionizer bag (supplied) must be placed in
the tank. Inspect the bag thoroughly for holes or tears, indicated by loose deionizer beads on
the outer surface. If the bag is damaged in any way, discard and replace it with a new one.
Only use original parts (see Spare Parts). Wash the deionizer bag in deionized water before
proceeding.
Insert the free end of the “T” fastener through one of the holes of the holder, until it is se-
curely fastened (Fig. 10). Insert the bag in the opening of the tank (Fig 11).
Fig. 10 Fig. 11
Ce manuel convient aux modèles suivants
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