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

© Danfoss | DCS (vt) | 2021.03

BC372016561395en-000101 | 5

PAGM-IR FOR CO2 - ONLY

Important: 

•  The CO2 PGM-IR (PN: 080Z2148) displays CO2 PPM gas readings that are relative to ambient air, NOT 

absolute CO2 PPM readings.

•  If the air in purge air bag is contaminated, use the EMPTY BAG function to clear the bag, then fill the 

bag with clean air.

To turn ON the monitor, lift up the shield located in front of the handle and press the red power ON/

OFF switch.

Important: 

•  The CO2 PAGM-IR (PN: 080Z2148) during warm-up needs to be filled with ambient/clean air (outside 

(prior to CO2 testing.

When the monitor has been powered ON immediately all front panel lights turn ON and a splash 

screen appears showing the monitor’s current firmware revision level. After a brief moment the Warm 

Up screen is displayed along with the front panel ON light (green) blinking allow the monitor it to 

warm up for approx. 5 minutes.

PAGM-IR for halogen gas

After the Warm Up has finished the unit is ready to measure gas, please select the appropriate gas 

using the display menu.

During normal operation Display screen shows when the monitor is performing the following 

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 monitor is resetting baseline ppm value using fresh Air.

• 

 PRES  CHK 

is displayed when the monitor is performing an atmospheric pressure check, which is 

done to ensure the accuracy of the gas measurement under varying atmospheric conditions. This 

pressure check is performed every 30 minutes.

PAGM-IR for CO2

Important: 

•  The CO2 PGM-IR (PN: 080Z2148) has an internal purge air bag that needs to be filled with ambient/

clean air prior to CO2 testing. This air is used to purge the IR detector of sample gas and establish a 

“zero” ppm baseline. Therefore, for greatest accuracy, it is important to ensure the purge air bag is 

filled with clean ambient air  from outside (away from breathing, car exhaust, etc.). 

•  The CO2 PGM-IR (PN: 080Z2148) displays CO2 PPM gas readings that are relative to ambient air, NOT 

absolute CO2 PPM readings.

•  If the air in purge air bag is contaminated, use the EMPTY BAG function to clear the bag, then fill the 

bag with clean air.

4.  General operation

4.1 

Normal operation

ABSOLUTE

RELATIVE

436 ppm

386 ppm

0 ppm

50 ppm

MEASURE

50 ppm

Relative CO  level in

refrigerant testing area

Absolute

CO  level in

ambient air

386 ppm

Adjusted CO  baseline

0070 pk

CO

CO

Level

Danf

os

s

80G8244

Summary of Contents for PAGM

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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