Hydrogen generator model NM Series II User`s manual
Contents
1. Status Normal Flow Press act 6 2 set 6 2 Bar Flow A O O O O OS A E ma Menu Water ll Pressure adjust Start Open Menu Configure Utilities Scroll Select Exit Pressure Adjust Configure Utilities Set Clock Alarm list 6 2 B ar Pressure Rise Diagnostics A Pressure drop delay Special functions y Exit Scroll Select Exit Scroll Select Exit E Set Clock oe Pressure Rise Attorefill Pressure drop delay Set autorefill time Auto start Beeper Scroll Select Exit Cascading made N Gen H2 in cascading ID number V W Remote start stop mode Autorefill Set autorefill time Remote relay mag Autorefill Auto Pre alarms in alarm list Off M Pressure units anual Temp units A Exit Scroll Select Exit Volume units Lock keyboard Display contrast Set default values Auto Manual 3s 3s Start Stop Exit y A Exit Alarm list Diagnostics Special Functions Alarm Number 1 Prod Tot 10000 scm Dryer Status 21 01 03 17 00 Oper time 100H System Test Low water W Quality 2 5 us Hardware options y A Exit y A Exit Scroll Select Exit Prod Tot 10000 scm V V Oper time 100H System test Hardware options W Quality 2 5 us Int Press 11 Bar Internal Leak2. The tank must be refilled when the water level approaches the lower level and the Refill Water pre alarm message appears Deionizer bag replacement Rinse the water tank and replace the deionizer bag approximately every six months and whenever the Change Water message appears See installing the deionizer bag Long time Storage If the Generator is not used or stored for more than 2 weeks it is very important to fill the water tank at least to half full This will avoid the dry out of the cell Don t leave new generators in the packing for more than a week this can damage the cell WARNING Dried out cells will cause irreversible damage which is not covered by warranty 18 Hydrogen Generator NM Series 2 User s Manual Options Remote control The hydrogen generators can be fitted with an I O board There are two possibilities with this board 1 Analog remote control with potentially free relay contacts to check the status of the machine and an input to start stop the production of hydrogen The contacts can be configured via the Configuration Menu as normally open or nor mally closed see the Configuration section The maximum voltage and current rat ings for the relay contacts are 1A 48V outputs The input signal can be configured in 3 different modes a start stop In this mode a pulse positive edge starts the generator and opens the main valve after the internal pressure is reached during building
3. If one accepts this beeper tone all the time no further action is necessary b If the beeper disturbs switch off the Alarm beeper at the Master For longer periods of maintenance repair a Go in the Configuration table of each unit and change the Nr of units cas caded N Gen H2 in cascading change the ID in those units which had an ID 5 than the ID of the disconnected unit in order to get again a continuous numbering of ID s Move the RS485 cables accordingly Situation Il a Master needs to be disconnected Option A 1 switch off power at the rear just like with the slave 2 Another Slave will automatically take over as Master Which one can be seen on the Display 3 As above go in the Configuration table and change the Total Nr of units ID Nr where needed to get ID s in sequence Move the cables accordingly Option B 1 before switching off the Master one can force a particular Slave to become the new Master force to Master 2 proceed as above in situation I Situation Ill reconnection of a unit 1 power up the unit and let it go to STBY 2 go in the Configuration table and set the Cascading mode to Ext Press 3 set the N Gen H2 in cascading to the new total 4 select an ID last in the series In this way the other units need only a modifica tion of the total number Note of course it is possible to give the unit the old ID it had when deleted from the group but than it requires more adaptation
4. of the unit Close the water tank with the cap Use suitable pack aging if possible the original shipping box The unit has to be transported in an upright position and this warning label should be clearly visible on the outside of the packaging Attention In winter the shipping box has to be additionally marked with a special label informing the shipping agent that the gen erator may not be exposed to temperatures below 2 C 35 F at any time 25 Hydrogen Generator NM Series 2 User s Manual Spare parts list The table below provides a list and description of the spare parts of the hydrogen generator Please note The manufacturer reserves the right to change or modify the listed products parts without prior notice 26
5. 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 Packing list List of items included in the shipment 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 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 160PS1 is controlled by the amount of hydrogen generated by the cell The outlet pressure
6. S SAGE e a ell A ed e ee ed no 16 PRESALAR ME ME NAG o e PN 16 ALARN MESSAGE a a de E PE EE oleada loe NAG GA 17 MAINTENANCE AA 18 ROUTNEMAINTENANG Ec an la Nana Ak a aa cess ad aoe aos 18 CLEANING elena abol 18 Ad a E AAA A II AA A NETE E T 18 DEIONIZER BAG REPLACEMENT cscsscsceccscaccececcscsccscscoscscascscscecaseecsseecscescssscssscscascscasescesescssescscescesescecasences 18 EONGTIME STORAGE o abo NG SO 18 BIB BA AA 19 REMOTE CONTROL a nA a a o e GARA binash NO do Oe RT e APELA GANA GG AEA 19 ANN NA AA 21 AUTO AA cee ene 24 KETURNING THE UNI easier ae cia 25 SPARE PARIS LIS de NENA naa aga agn BGC sc a GAGA al GAPANG AY aba ba Saiyo nat BB NUNAL a AG KAO nn pa a 26 Hydrogen Generator NM Series 2 User s Manual Introduction Specifications 0 100 cc min at STP 0 160 cc min at STP 0 250 cc min at STP Model NMH2 100 Model NMH2 160 Model NMH2 250 Hydrogen flow rate at STP STP Standard temperature and pressure 20C 1 bar absolute 68 F 14 4 PSI absolute 0 300 cc min at STP 0 500 cc min at STP Model NMH2 600 0 600 cc min at STP Model NMH2 1000 0 1000 cc min at STP Max outlet pressure 10 5 bar 155 psi Weight dry NM 100 160 250 300 NM 500 600 NM 1000 Heat Dissipation Model NMH2 100 184 Model NMH2 160 235 Model NMH2 250 328 Model NMH2 300 410 Model NMH2 500 615 Model NMH2 600 697 Model NMH2 1000 984 Operating conditions Temperature 15 C to 40 C 59 F to 104 F Relati
7. Test Enable Heater Test Cell Volt 3 6 V External Leak Test Enable Moisture Alarm Cell Curr 33 A Flow Test Select Valve Bloc Type PS Temp 40 C Scroll Select Exit Scroll Select Exit Cell Vpeak 3 8 V PS Temp peak 45 C V V Internal Leak Test Pasternaki rak et Enable Heater Test Flow Test Enable Moisture Alarm Heater Test R Select Valve Bloc Type Rinse Flow Test Release P in Standb Complete System Test y Toggle Valve Fig 18 13 Hydrogen Generator NM Series 2 User s Manual Configure Parameters Set Clock Allows to set the internal Clock a AH Pressure rise Sets how fast the pressure has to in 0 01 4 2 bar min 0 09 crease If the pressure increases at a 0 2 60 psi min 14 slower rate a low output pressure alarm is activated Pressure drop Sets a delay in minutes before a low 2 10 min 2 delay output pressure alarm is triggered Auto start Sets whether or not the unit auto YES NO NO matically starts production when power is switched on Beeper Sets whether or not the audible signal ON OFF ON is activated in the event of an alarm Cascading Sets the cascading mode see cas None Normal Ext P control None mode cading for more details N Gen H2 in Sets the number of generators in the 1 10 1 cascading Cascading chain Remote Configures the remote stari stop Start stop Start only Direct start stop control start stop mode function For more details see Re mote opti
8. YN MATHESON TRI GAS ask The Gas Professionals 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 MATHESON TRI GAS Keystone Drive Montgomeryville PA 18936 Phone 215 641 2700 Fax 215 641 2714 Email mtgmmville matheson trigas com Hydrogen Generator NM Series 2 User s Manual Index INDEX AA eee 1 INTRODUCTION lt a io 2 SPECIFICATIONS EEA A EEAS dad 2 NOTESYON ECC O GE a bas ds te oe teres iss oa la dls E 3 CORRECTUSE aladas ipods 3 ARIES A a IO aaah 4 DESCRIP FION al con oo a 5 INSTALLATION ia AA PA 6 RECEIVING THE GENERA TOR BEA e a akal 6 PELACING THE GENERATOR e a ei oa llanta E eta EA dna nG LIA baa 6 CASCONNEE MON Sala le ada is aa ABE ads Da eta die oia 6 ELECTRICAL CONNECTIONS oie 7 INET STAR UP ui toi cis 8 PELING TOE WATER TAN E e naga teins naaa kaiba bab sue mantikang conato ge ai gt micas ba Gaan aces Aa e manis teehee 8 INSTALLING THE DEIONIZER BAG ed o e A r 9 OPERATION ca 10 LAYOUT OF THE START UP DISPLAY Nasan NA NAN aasa na DAN ANAN aasa na aaa 11 IMENU FREECONEIGURE PARAMETERS an SAI DAG sin 13 CONFIGURE PARAMETERS naal baa bana ka Nah saad ahac ana aaa oir al haka nada 14 DIAGNOSIS PA Oe ee ad AE AA Na aa a Naan 15 SPECIAL FUNCTION S Hasan Ahh TO Na NANO e NONA NAGA 15 LISTOR MESSAGES tt aa 16 STATUS ME
9. g 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 e Using a small screwdriver remove the voltage selector insert e Replace the voltage selector insert so that the white arrow points to the correct volt age e Use only 240 VAC or 120 VAC setting Hydrogen Generator NM Series 2 User s Manual 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 2uS 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 lt 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 Installing the deionizer bag The triangle deionizer bag has been designed for a higher water purify
10. ing 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 Hydrogen Generator NM Series 2 User s Manual Operation First turn on the main power switch at the rear of the unit The display will show the software version installed followed by a self checking period of 20s Fig 12 Than the main screen appears Function buttons description LED 2 Function buttons LED 1 Fig 13 LED 1 green This LED has two states flashing or continuously on 1 Flashing the generator is powered up the unit is in Standby mode the unit is building up internal pressure the main valve is closed 2 Continuously on the main valve is Open and the unit is in Norma
11. 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 H2 GLS Las H2 GLS H2 Vent low high press press Int Press Sens ay IC Y Dryer Water Tank Ext Press Sens ta Drain port Autorefill gt connector O2 GLS lI O2 Vent low ee press Fig 1 He Pressure relief H2 Outlet Hydrogen Generator NM Series 2 User s Manual 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 m
12. l operation Fig 1 7 LED 2 red This LED flashes in case of an error See Alarm List to find out more details 10 Hydrogen Generator NM Series 2 User s Manual Layout of the Start up display Fig 13 First row status information The Status shows current information on the operating status of the generator Second row pressure information Press Act is the actual pressure of the hydrogen outlet Third row set pressure Set is the adjusted pressure in the pressure set menu Forth row hydrogen flow Bar Graph This row displays the current quantity of hydrogen being produced Each segment represents around 10 of maximum capacity This graph also indicates how much hydrogen is being consumed by the connected equipment Note during initial build up of the internal and external pressure and to maintain the internal pressure the displayed How will temporarily go to maximum and deviate from the actual flow on the gas outlet Fifth row water quality Bar graph This graph shows the quality of the water in the reservoir With more than 7 segments illuminated water quality is good If only 3 or less points are illuminated the conductivity of the water is around 30 us pre alarm level If only 1 segment or no segments are illuminated the conductivity of the water is equal to or greater than 40 us alarm The generator will shut down 11 Hydrogen Generator NM Series 2 User s Manual Function but
13. ll function in the Configuration settings to ON c Adjust the auto refill time The easiest way is to use the auto mode 3 Adjusting auto refill time in auto mode a Put the generator in standby mode b Empty the water tank c Go into the auto refill Auto menu d Press the start button e Wait until the filling level is approx 30 to 50 of the max level f Press the stop button the time between start and stop will be used for the auto refil 4 Using the manual mode In the manual mode you can enter the refill time directly Warning If the refill time is too high the water tank of the generator will overflow and water may drop on electronic components resulting in malfunction or even damage of the generator 24 Hydrogen Generator NM Series 2 User s Manual Returning the unit In the event of any faults or damage first notify the agent or distributor who supplied the unit Please also provide full details of the problem including the model and serial number Instructions will then be provided for the service or the return of the unit If the warranty has expired or the fault is due to misuse of the unit all repair and shipping costs are to be paid by the customer except as otherwise expressly agreed upon Transport If the unit has to be transported or returned to the factory for repair make sure that the water tank is completely empty and place the plugs supplied with the unit on the oxy gen Ho vent at the rear
14. n the reservoir is Paani too low Bad Water The conductivity of the water has Drain and then refill the exceeded 40 uS tank change the deionizer bag High Cell Voltage The cell voltage is too high Notify service agent The current for the cell is too high Notify service agent Low out pressure The water is ee in time with Check if any gas Is fed back into the generator from an external source Over pressure The output pressure is too high Check int press in the Diagnos tics if higher than 11 2 bar 163 PSI notify service agent 17 Hydrogen Generator NM Series 2 User s Manual Maintenance With proper care and maintenance your hydrogen generator should provide you with years of trouble free operation There are no adjustments to be made to the generator The only routine service operations are those described below Nonetheless it is recommended to have the generator inspected approximately every 2 years or more frequently if the generator is installed in a rather dusty environment Contact your service agent Routine maintenance The following section describes the maintenance operations required for the correct opera tion of the hydrogen generator Cleaning The internal components of the hydrogen generator do not need to be cleaned and should not be accessed by the user for cleaning To clean the outside of the unit only use a damp cloth no detergents acids or aggressive or abrasive substances Water refilling
15. on Remote relay Configures the remote relay contacts Normally open NO Ma mode Normally closed NC Autorefill If set to ON the pre level water alarm ON OFF is used to trigger an external pump or valve to refill the water tank Pre alarms in list fset to Yes the pre alarms are also YES NO shown in the alarm log Pressure units Sets the desired unit of measure for bar psi kPa bar the pressure Temp units Sets the desired unit of measure for C and F the temperature Volume units Sets the desired unit of measure for scm standard cubic meters the volume scf standard cubic feet Lock Keyboard If set to Yes the keyboard will be YES NO locked automatically after the genera tor is in the main window for more than 20s To unlock the keyboard ae the unlock button and hold for Display contrast a the contrast of the display OO 5 Set default Sets all configuration parameters to values default 14 Hydrogen Generator NM Series 2 User s Manual Diagnostic display Production Tot Total production of hydrogen Operating time h Total number of hours the unit has been in operation Wat quality iS Cel volage Y Cel current A Special functions Item Description 222222 Dryer status Shows the temperatures of the drying columns and the position of the cycle System test This offers several test functions see below Important this function will only work if the generator is in standb
16. s cascading work The communication of the generators is done via the RS 485 Interface For a correct com munication each generator needs a unique ID number Each generator must know how many generators are connected in the cascading group As soon as the generators are powered up one generator becomes the master and controls the others slaves If there is a problem with the master one of the slave generators will become the master Every generator can be forced to be the master by entering into the menu you will see the function force to master Than just select this function and acknowledge When a generator is the master you can see the letter M in the menu button while the slaves show the letter S Set up for Normal mode Gas Line H2 Out H2 Out Generator 1 Generator 2 Configuration Configuration Cascading mode Normal Cascading mode Normal N Gen H2 in Cascading 2 N Gen H2 in Cascading 2 ID Number 1 ID Number 2 RS 485 port RS 485 port Fig 21 21 Hydrogen Generator NM Series 2 User s Manual Set up for external press control mode Gas Line C Pressure controler Non Return Valve H2 Out Generator 1 Configuration Cascading mode Ext P N Gen H2 in Cascading 3 ID Number 1 RS 485 port RS 485 port Non Return Valve Non Return Valve H2 Ou
17. s of ID numbers 5 connect the RS 485 cable If the ID last number N than just connect the cable to the unit N 1 If the old ID Nx is given than the cable needs to be inserted be tween unit with ID Nx 1 and Nx 1 Warning If a generator is switched off with the power switch in order to take it out of the chain the automatic cell depressurisation will not work To avoid premature cell damage the unit needs to be switched on again as Stand alone unit and then set In STANDBY mode for at least 30 seconds before it can be switched off again 23 Hydrogen Generator NM Series 2 User s Manual Auto refill Description The auto refill option gives you the possibility to refill the water tank of the generator auto matically from a external water source You can either use a DI water line or a water reser voir The correct refill time is depending on the pressure of the water source A higher pressure needs a shorter refill time Max pressure is 60 PSIG If you are using a water reservoir make sure the minimum water level in the reservoir is 2 3 feet higher than the top of the generator Generator From DI water line Filter nA ON EA or water reservoir 100 to 240 VAC 50 60 Hz Remote Input Fig 23 Installation steps KG Connect the water tubes and the interconnect cable as in the diagram above 2 Configure the generator as follows a Set the generator to standby b Set the auto refi
18. ssure O Normal flow D Master Slave B Slave Normal Pot COMIT ID Auto Production Ah Water quality 2 Pre alarm O Low water Bad water D Power supply temperature Check Slave Clock failure Dryer failure Alarm D Low internal pressure D Low external pressure D Low water D Bad water High cell voltage Over current Over pressure D Power supply temperature 2 Dryer failure External pressure error Check autorefill Heater column 1 D Heater column 2 Fig 20 20 Hydrogen Generator NM Series 2 User s Manual Parts included 1 cable RS 232 2 Software for Windows compatible with Windows 2000 XP P N MCBD 0194 XX Cascading The RS 485 interface allows up to 10 generators to be operated in parallel mode There are Two modes available Software compatibility Before generators can be cascaded it must be clarified that their software ver sions are compatible and can work together Normal mode in this mode the gas outlet of each generator will be connected directly into a gas line and the pressure is controlled by the generators This works fine with two genera tors External Pressure control In this mode the generators are connected with an external non return valve to the gas line The pressure must be controlled with an external pressure regu lator The outlet pressure is fixed to 10 3 bars This mode allows up to 10 generators in a cascading group How doe
19. sure The generator is producing H2 and pressure increases until the AEAEE set value is reached LU Normal Pressure he generator is producing H2 and has reached the set pres sure value Nimal row The generator is producing H2 and has reached the set pres sure value with H2 flowing This unit is the master in the cascading chain This unit is a Slave in the cascading chain Pre alarm messages Normal Pressure Pressure These Alarms will not shut down the Generator but action must be taken to avoid shut ee DESCRIPTION ACTION Refill Water Water level approaching alarm Fill the tank with water threshold The conductivity of the water has Drain and then refill the tank nanga Me exceeded 30 us change the deionizer bag Power supply Temp The temperature inside the genera Check for proper ventilation space tor is too high around the generator One or more slave s are not work Check error messages of slaves Check Slave ing properly praia mode configuration settings cables The clock is not set Clock failure If the generator is shut down for Baya more than a week the time setting 16 Hydrogen Generator NM Series 2 User s Manual Alarm messages These alarms will shut down the generator DESCRIPTION ACTION Low internal pressure The dlls ia cannot be Notify service agent cotas AHA Check for leaks in the external k tubing or H2 consumption is reached higher than the generator capacity The water level i
20. t Generator 3 Configuration Cascading mode N Gen H2in Cascading 3 ID Number RS 485 port Ext P 3 RS 485 port H2 Out Generator 2 Configuration Cascading mode Ext P N Gen H2 in Cascading 3 ID Number 2 RS 485 port RS 485 port Fig 22 IMPORTANT The cascading function will only work properly if the gas outlets on all the generators are connected to the same gas line Parts required I O board P N MCBD 0199 XX 2 Cascade cable MCBL 0082 XX A 22 Hydrogen Generator NM Series 2 User s Manual Service of Cascaded H2 Generators We assume that the units are working in the mode external pressure control which means all units have an output pressure of 10 3 bar 148 3 psi and are connected to the common supply line via a non return valve NRV which in turn is connected to an external pressure regulator which sets the pressure for the consumers Situation a slave with ID 3 out of 10 needs to be disconnected for service 1 switch the power off with the power switch at the back side of the unit The NRV will close and avoid that H2 leaks back The pressure may drop a little e g 10 3 148 3 psi gt gt gt 9 5 bar 136 8 psi for a moment until the other generators have compensated for the lost unit It is assumed that total flow can still be deliv ered by the rest of the generators 2 Result an Alarm message at the Master but operation continues For short interruptions a
21. tons The functions of these buttons depend on the place in the Menu tree The actual function is displayed just above each button Fig 13 Start button Pushing this button will start the hydrogen production The display will show Reaching Int Pressure Additionally the percentage of internal pres sure reached will be displayed Fig 14 When the final internal pressure is reached 11 bar 160 PSI the display will show Ready Fig 15 eac h Tr l t Pres 3 Press Ke a a dy Y bal ada Set 10 bar F low 18 pai li AU Gi Gi E ter later Lea leelee i ater ae Open Me enu Open button This function will appear after the generator has been started When this button is pushed the proportional valve slowly opens in order to reach the external pressure as defined in the Pressure Adjust Menu The display shows Reach Ext Press Fig 16 When the button is pushed before the internal pressure has been reached it will flash and the valve will start to open as soon as the internal pressure has been reached RI Fig 16 Fig 17 Note The proportional valve may need up to two minutes to build up the adjusted pressure Menu button With this buttons the user can enter the Menu tree 12 Hydrogen Generator NM Series 2 User s Manual Menu Tree Configure Parameters
22. up the internal pressure the open button is flashing The next pulse will put the generator in Standby b start only In this mode the generator can be started by a pulse positive edge or continuous signal The main valve will be opened when the internal pressure is reached During build up of the internal pressure the open button is flashing The Stop action is via the key board c direct control In this mode the generator is producing hydrogen and the valve is open as long as the input signal is high When the signal goes low the generator goes in Standby Remote connector pin configuration Start 12 30 VDC pin 1 OV pin 2 positive Pin Standby anay 19 Hydrogen Generator NM Series 2 User s Manual H2 I O generator board Start Stop Status Information Parts required 1 I O board P N MCBD 0199 XX Fig 19 p Hydrogen Generator Remote Start Stop Standby w Reaching Pressure o Refill Water o Low Water o Bad Water Remote control box sample NOT for sale 2 Digital Remote control via RS 232 with special software available from Matheson Tri Gas In this configuration the Generator can be fully controlled via PC Fig 20 Ea H Generator Series NM 2 Remote File gt Info H2 production Pressure set Bar Cell Voltage M Operation time h 10 7 3x TE Status D Stand by Reaching internal pressure D Ready G Reaching external pressure Normal pre
23. ust 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 AN UXYGE GEN IMPORTANT YERO Remove the plugs from the oxygen vent and arn hydrogen vent before operating the unit K Keep these plugs for transporting the unit For return of the unit to the factory Fi
24. ve humidit 0 80 non condensing 2 C to 60 C 35 F to 140 F Over voltage category CT Model NMH2 300 Model NMH2 500 Hydrogen Generator NM Series 2 User s Manual 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
25. y Internal leak test The outlet valve is closed the pressure is set to the max When the pressure reaches the max production is stopped and the pressure drop is measured over 2 minutes The pressure drop should be below 0 7 bars or 10 PSI External leak test Works similar to the leak internal leak test except the outlet valve is open and the test pressure is equal to the set pressure This function can be used to test the external gas lines Flow test This function sets the outlet valve to provide a certain flow Adjustable from 0 to 100 of maximum flow Note It will take approx 2 minutes to get a stable flow Heater test This test checks if there is a reaction of the heaters when power is applied Rinse flow test This test checks the amount of gas flow for the dryer regeneration Complete system test Combination of all tests above Toggle Valve Used to switch the valves manually for advanced diagnostics only Important after exiting this window the valves will return to the Status prior to entering this test Hardware options not available for user password protected 15 Hydrogen Generator NM Series 2 User s Manual List of messages These messages are Just for information of the user No action needs to be taken Status messages Standby The generator is powered up but not started Reaching int Press Building up internal pressure after pressing the start button The Generator has reached internal pres
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