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User Guide | Gas detecting sensor, type PAGM for CO2 and Halocarbon

© Danfoss | DCS (vt) | 2021.03

BC372016561395en-000101 | 9

Accuracy check should be performed once every 12 months to ensure peak performance of the unit 

see below guidelines.

Important:

 The accuracy check can only be performed when the unit is in Normal Operation – see 

above. Do NOT use pure refrigerant to perform this test as doing so will damage the unit.

PAGM-IR for CO2

•   Using a regulator, inflate a plastic bag (at least 20 L) with CO2 mixture of known concentration 

(recommended 5000 ppm) 

•   Insert the wand and seal the plastic bag opening while minimizing any leakage. Let the PGM 

stabilize over a few minutes

•   The PGM-IR should read /- 5% of the calibrated gas minus the ambient CO2 level (typically 

~390 ppm).

Example: unit exposed to 5000 ppm should read 4610 ppm +/- 5%, which is from 4380 – 4840 ppm

PAGM-IR for halogen gas

•   Set-up the unit to measure R134A gas,
•   Using a regulator, inflate a plastic bag (at least 20 L) with R134A gas mixture of known concertation 

(recommended 500 ppm) 

•   Insert the wand and seal the plastic bag opening while minimizing any leakage. Let the PGM 

stabilize over a few minutes

•  The PGM-IR should read /- 5% of the calibrated gas ppm value

Example: Unit exposed to 500ppm should read between 475 and 525ppm.

If the unit is outside the parameters please contact Danfoss technical support department  for further 

assistance.

5.3 Verification

Front

Remove 

screws (3)

Remove screws (2)

Left side

Rear

Remove 

screws (3)

Remove screws (2)

Right side

Note:

 When fitting the Hydrophobic Filters please observe the correct orientation as fail to do so will 

result in monitor fault condition – 

“NO FLOW” code <0800>

.

Содержание PAGM

Страница 1: ...User Guide Gas detecting sensor Type PAGM for CO2 and Halocarbon www danfoss com...

Страница 2: ...xhaust and zero air filter assembly 3 2 1 Gas Sample Probe 3 2 2 Purge Zero Air Carbon Filter Assembly 3 2 3 Battery 4 3 Front Panel Display Controls 4 4 General operation 5 4 1 Normal operation 5 4 2...

Страница 3: ...tions For details on appropriate use refer to the general description application and operation discussions in this manual Before risking equipment damage or personal injury contact the manufacturer i...

Страница 4: ...Before the unit can be used please connect the battery pack the unit is designed for a 16 V DC input Set battery voltage output to 16 V refer to the battery manufacturer s instruction sheet for detail...

Страница 5: ...ng functions MEASURE indicates that the monitor is actively measuring the refrigerant gas level at the sample point To reset the peak value to zero press the ENTER button PURGE is displayed when the m...

Страница 6: ...ng the SILENCE button while a fault condition still exists causes the internal audible alarm to turn OFF for a period of time as set by the SILENCE The front panel FAULT light will continue to flash O...

Страница 7: ...act service department for further instructions 0800 Sample Flow Fault Check for a restriction in the gas sample inlet or exhaust Check the external Coalescing Inline Filter and or internal Hydrophobi...

Страница 8: ...ied out at least once every 6 months but is dependent on the environment and usage If used in harsh environment where a large amount of dust and moisture particles are present in atmospheres the maint...

Страница 9: ...ient CO2 level typically 390 ppm Example unit exposed to 5000 ppm should read 4610 ppm 5 which is from 4380 4840 ppm PAGM IR for halogen gas Set up the unit to measure R134A gas Using a regulator infl...

Страница 10: ...Danfoss DCS vt 2021 03 BC372016561395en 000101 10 ADAP KOOL...

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