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KLH - Room humidity transmitter/controller

User Guide

This user guide is for devices with the software version 1.3.6 or newer.

Summary of Contents for KLH

Page 1: ...KLH Room humidity transmitter controller User Guide This user guide is for devices with the software version 1 3 6 or newer...

Page 2: ...to the device 4 1 4 2 ML SER menu 5 2 Modbus 12 2 1 Modbus properties 12 2 2 Terminating Modbus 12 2 3 Modbus function codes 12 2 4 Modbus registers 12 2 4 1 Coils 13 2 4 2 Discrete inputs 13 2 4 3 I...

Page 3: ...flow coming from ventilation nozzles air flow coming from the flush mounting box differential temperature caused by external wall 1 2 Wiring CAUTION Device wiring and commissioning can only be carrie...

Page 4: ...odels is configured to change the controller setpoint the setpoint is shown on the display when the potentiometer is rotated Press the S1 button to stop the scrolling to the currently displayed value...

Page 5: ...M button The values can be changed with the and buttons The menu is device specific and the content depends on the device and installed options The following menu structure contains the factory setti...

Page 6: ...ontrol mode OK HUMIDITY Cont OK OK OK OK Modbus ID PI Control mode 300 Integr time s 50 RH Setpoint OK 50 RH Propor band P Control mode OK MAXIMUM CTRL Cont OK OK OK OK Modbus ID PI Control mode 300 I...

Page 7: ...available in M models M OK OK OK OK Modbus ID COMMUNICATIONS 1 MODBUS ID 9 6 Baud rate k n Parity Parameter Available values Description MODBUS ID OFF 1 247 Modbus address Baud rate k 9 6 19 2 34 8 5...

Page 8: ...75 50 25 0 Fixed output Deactivation 6h 12h 24h MANUAL Fixed output deactivation timer 1 4 2 4 Controller menu The control output can be controlled either according to a one measurement value or acco...

Page 9: ...m selection control the control output signal is formed according to the measurement that causes the largest control signal value The following situation is described in the example figure Temperature...

Page 10: ...erature setpoint The potentiometer adjustment range is 3 C around the set point centre RH SP Potentiometer is used to set the humidity setpoint TE SP CENTER C 10 0 30 0 C Temperature setpoint centre T...

Page 11: ...C 0 50 0 Set point for temperature C The value can be adjusted by 0 1 C steps Hysteresis C 0 0 20 0 Hysteresis for temperature C The value can be adjusted by 0 1 C steps RelON RH 0 100 Set point for h...

Page 12: ...Modbus function codes Decimal Hexa decimal Function 1 0x01 Read Coils 2 0x02 Read Discrete Inputs 3 0x03 Read Holding Registers 4 0x04 Read Input Registers 5 0x05 Write Single Coil 6 0x06 Write Singl...

Page 13: ...1 Reversed 0 2 4 2 Discrete inputs Register Parameter description Data type Values Range 10001 Relay status Bit 0 1 0 Off 1 On 2 4 3 Input registers Register Parameter description Data type Values Ra...

Page 14: ...013 Proportional band CO2 S16 100 10000 100 10000 ppm 500 40014 Proportional band temperature S16 10 320 1 0 32 0 C 20 40015 Proportional band humidity S16 10 100 10 100 rH 50 40016 Integration time S...

Page 15: ...ometer humidity setpoint high limit S16 0 100 0 100 60 40033 Not in use S16 600 40034 Not in use S16 1200 40035 Not in use S16 1 40036 Not in use S16 1 40037 Not in use S16 2 40038 Y1 Y4 output range...

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