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Reset Run Hour Counter

Resets the humidifier controller’s
run hour counter to zero hours

40560

255 will start the run hours
counter process.

0 will be accepted to clear the
run hours counter.

Current damping

Buffers the measured current

40510

From 0 to maximum
(depending on software ability)

Electrode current

The value of the electrode current
in Amps

30850

Hex value representing the
humidifies current in amps

Resolution: 0.10 amps

Example:

015F (hex) = 35.1 Amps

Steam output

The current steam output in Kg/Hr.
or LBS/hr

See UNITS (Modbus 40031)

30860

Hex value representing the
humidifies steam output in
kg/hr

Resolution: 0.10 kg or LBS

Example:

013B (hex) = 31.5 kg/hr or
LBS/hr

Run hour counter

The number of hours the
humidifier has been in operation
since the last time the run hour
counter was reset

30414

Hex value representing the
number of humidifier oper
additional hours since the last
reset.

Resolution: 5 minutes

Maximum count: 5460 Hours.

Example:

07D0 = 2000 hours

Firmware version

The firmware version of the
humidifier controller

30361

Packed BCD version 3.52
would be 0x0352

Humidifier state

Describes the current state of the
humidifier and it’s I/O’s

Contactor ON/OFF

Fill Valve ON/OFF

Drain Valve ON/OFF

30800

Bit Allocation

Note More than one bit can be
active at any time.

Contactor on = 1

Fill valve on = 2

Drain valve on = 4

Maximum production

The rated maximum steam
production for the humidifier

30802

Value written into Unit type
(40600) is also stored here

Alarms

The humidifier shall describe any
faults

Too long to fill

Excess Current

End of cylinder life

No current

30364

Bit Allocation

Note More than one bit can be
active at any time.

Too long to fill = 1

Excess current = 2

End of cylinder life = 4

No Current = 8

- 9 -

Summary of Contents for MES Electrode

Page 1: ...ectrode Steam Humidifiers Installation Operation Maintenance Spare Parts and Exploded Views Guide IMPORTANT Read and save this guide for future reference This guide to be left with equipment owner Form 07 111 ...

Page 2: ......

Page 3: ...LINDER REPLACEMENT 3 WHEN TO REPLACE THE STEAM CYLINDER 3 REMOVING THE OLD CYLINDER 4 INSTALLING THE NEW CYLINDER 4 MAINTENANCE 4 EXTENDED SHUTDOWN 4 TROUBLESHOOTING 4 TERMS USED 4 STARTING POINT 5 DIAGNOSTIC PROCEDURES TROUBLESHOOTING GUIDE 7 SOFTWARE REQUIREMENT FOR MODBUS RTU 8 PHYSICAL DIMENSIONS DIAGRAM 11 WIRING DIAGRAMS 12 SPARE PARTS LIST 14 EXPLODED VIEWS DIAGRAM 15 ...

Page 4: ...ible materials shall be placed in the duct and or the air plenum PRINCIPAL OF OPERATION When the humidistat calls the cylinder fills to 100 of the Full Load Amperage F L A or to the top of the cylinder whichever comes first See Figure 1 If it reaches 100 F L A the water heats and boils away to a level giving 80 F L A An electronic timer uses the rate of amp fall to determine the water level The ob...

Page 5: ...lative humidity location for humidifiers 5 rh 80 rh Check to see that the unit is securely mounted on a level surface with the proper drain and water supply Check for correct voltage with appropriately sized service Check that the steam distributor steam supply hose and condensate line are correctly installed and routed back to the unit Ensure that the external control humidistat is located in an ...

Page 6: ...spoon of table salt no more in a cup of water and add it to the cylinder by means of the fill cup attached to the plumbing section Open the plumbing compartment and add salt solution through cylinder outlet Excessive amounts of salt will result in erratic operation of the unit however normalization of the unit will occur automatically through the solid state control sequence CAPACITY ADJUSTMENT Th...

Page 7: ...ug on all units is for the sensor pin which always goes on the single pin offset from the others See Figure 6 4 Ensure that cylinder plugs are very snug on the pins Replace any loose fitting plugs as these may result in hazardous operation MAINTENANCE WARNING The plumbing and electrical compartments contain high voltage components and wiring The access cover is attached with screws Access should b...

Page 8: ...iring diagram 1 Check for 24 Vac across terminals 18 and 26 on PC board 2 Jumper the humidistat on external control terminal strip If contactor operates then control system is at fault 3 The low voltage 3 amp fuse located in the control box could be blown 4 The contactor holding coil could be open or shorted 5 The switch could be defective Recheck that the auto on off drain switch is still at on I...

Page 9: ...nder up into spout If the red light is not on and fill is still activated jumper across the connection of sensor on basic PC board If fill remains on when connection is jumped then basic PC board is faulty If fill shuts off then verify primary voltage to cylinder contactor energized If primary voltage is present the high water sensor PCB is defective Unit drains continually May be caused by foamin...

Page 10: ...me possible drain restrictions Check if fill valve leaks not holding supply water Back pressure may also cause very conductive water conditions Was the humidifier short cycling Check for short cycling Water conductivity too high 2 flashes in sequence Off No current detection for 30 minutes with continuous call for humidity Check water level in the cylinder should be more than full If not check fil...

Page 11: ...ill be accepted to clear if the request has not been cleared itself Set MODBUS address Change the humidifier controller s MODBUS address Range is 1 247 This setting shall be non volatile with a default setting of 1 40550 The value changes will only take effect following a hardware reset of the control board Set MODBUS Baud rate Changes the humidifier s baud rate Range is 4800 9600 and 19200 B sec ...

Page 12: ...t time the run hour counter was reset 30414 Hex value representing the number of humidifier oper additional hours since the last reset Resolution 5 minutes Maximum count 5460 Hours Example 07D0 2000 hours Firmware version The firmware version of the humidifier controller 30361 Packed BCD version 3 52 would be 0x0352 Humidifier state Describes the current state of the humidifier and it s I O s Cont...

Page 13: ...ng maximum unit capacity 100 fill off amps Unit voltage Required by the control board for current and capacity calculations 40610 Format is Hexadecimal numeration table see below Unit phase Required by the control board for current and capacity calculations 40620 Bit Allocation Single phase 1 Three phase 2 Three phase 6 electrode 4 10 Hex Value Unit Type 0 110 120 1 208 2 220 240 3 230 4 277 5 347...

Page 14: ... 11 MES ...

Page 15: ... 12 ...

Page 16: ... 13 ...

Page 17: ...ll Cup 142 1050 1 1 1 1 1 1 1 1 21 Fill Valve Assembly 1 132 1061 1 1 1 1 1 1 1 n a n a 22 Fill Valve Assembly 2 132 1062 n a n a n a n a n a n a n a 1 1 23 Fill Valve Hose Specify Length 132 8850 1 1 1 1 1 1 1 1 24 Fill Valve Spring Clamp 132 5023 2 2 2 2 2 2 2 2 25 Fill Valve Screw 145 5004 2 2 2 2 2 2 2 2 26 Fitting 1 to 3 8 149 5072 1 1 1 1 1 1 1 1 27 Fitting 3 8 to 1 4 compression 90 degree 1...

Page 18: ... 15 ...

Page 19: ...pressed or implied by law No liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product Any further warranty must be in writing signed by an officer of THE COMPANY THE COMPANY s limited warranty on accessories not of Walter Meier s manufacture such as controls humidista...

Page 20: ... Equipment Ltd 2740 Fenton Road Ottawa Ontario K1T3T7 Walter Meier Climate Equipment Inc 826 Proctor Avenue Ogdensburg New York 13669 Tel 866 NORTEC 1 Fax 613 822 7964 nortec humidity com www humidity com PRINTED IN CANADA ...

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