Part load position sensors (LPI)

On this page find you the  electronic part load position sensors (LPI- Linear Position Indicator ) on refrigeration Screw compressors –  The position of the slide valve will be given in  4-20 Ma signal direct to the PLC  or additional a led system direct on the compressor – You can connect the partload indication  direct on the the PLC or the most controllers –   For question of availability contact us by E-mail.

RM-modification kits for Howden WRV models 

Incase you like to read-0ut direct the position of the capacity slider valve, we offer the RM-modification kit for Howden WRV Compressors models-  the power supply is 24 VDC and provide a out put of 4-20 mA.  There are no led indication is steps of 10% only a direct output of 4-20mA.  The benefit is that the read-out is always 1 valve. The Connection is hirschmann connection not a round connector as the Howden LPI sensor. – Note:  the connection is different down load the calibration and connection instruction  below. 

For the WRV versions are on request also Atex LPI versions available

RM-305 LPI Sensor on the Howden mk4/ WRV255/165.50

Print RM LPI

RM connection and calibration instruction

Linear positon indicator to indicate the position of the capacity slider Howden WRV  compressor models 

The Standard Howden linear Positon indicators are suited with a round connector and 10 led for each 10% load.  The output is 4-20 mA . the power sypply  24 VDC.  – Note:  the connection is different down load the calibration and connection instruction  below. 

For the WRV versions are on request also Atex  & Cullus  versions available

Print Howden LPI

Howden connection and Calibration instruction

Howden XRV models

The Linear position indicator for the Howden XRV models are also available in standard for non explosion proof area’s or in ATEX or CULUS version for explosion proof area’s-  The supply power is 24 VDC and provide a out put of 4-20 mA and a 10 led indicationfor steps of 10% .   – Note:  the connection is different down load the calibration and connection instruction  below

Print Howden LPI

Howden connection and Calibration instruction

Howden XRV models modification kits

For Howden XRV models without a LPI we offer modification kits.  The supply power is 24 VDC and provide a out put of 4-20 mA.  – no led indicaton Note:  the connection is different down load the calibration and connection instruction  below

Print RM LPI

RM connection and calibration instruction

GEA part load sensor part number: 627500015

These sensors are also available in ATEX and Culles  version 

GEA capacity sensor part number 62700015

Stall Compressor 

For the Stall S range are special part load set available 

Gram  Compressor 

For the Gram compressor  are the short stroke  positon indicators available 

part load sensor Gram 52-021-0614