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Operating Guide

DGS

Functional tests and calibration procedure

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Summary of Contents for DGS-IR CO2

Page 1: ...Operating Guide DGS Functional tests and calibration procedure ...

Page 2: ...he unit must be carried out by a suitably qualified technician and must be done in accordance with this guide in compliance with locally applicable guidelines and regulations Recalibration and part replacement in the field maybe implemented by a qualified technician and with the appropriate tools Alternatively the easily removable sensor element may be replaced There are two concepts that need to ...

Page 3: ...or calibration or accuracy checks of the sensor These require actual gas calibration not bump testing with ampoules For bump tested expose the sensors to test gas R134A CO2 etc The gas should put the system into alarm The purpose of this check is to confirm that gas can get to the sensor s and that all the alarms present are functional For bump test can be used Gas Cylinder or Gas Ampoules see Fig...

Page 4: ...flow controller Calibration adapter with tube code 148H6232 Note about test gas bottle for calibration see Fig 1 because the transportation of gas ampoules and cylinders gas is regulated by many governments throughout the world is suggested to source them from local dealers Before to perform the calibration connect the Handheld Service Tool 080Z2820 to the DGS device 1 Danfoss 148H153 JP5 5 4 2 1 ...

Page 5: ...responds to 50 of the sensor measuring range Select the Zero calibration menu In case of CO2 sensor the Zero Calibration has to be executed by exposing the sensor to pure Nitrogen same gas flow Before executing the zero calibration the specified warm up times must be strictly observed before starting the process Connect the calibration gas cylinder to the sensor head by using the calibration adapt...

Page 6: ...ce value of the set calibration gas concentration press Enter for finishing the calculation of the new value After the value has been successfully stored a square appears on the right for a short time Gain calibration is finished a new gain offset has been stored with success The display automatically goes to the display of the current ppm value During the calculation phase the following messages ...

Page 7: ...y Calibration tool no This report was created automatically and is also valid without a signature Calibration compiles with ISO IEC 17025 Date Alternative Cal Gas Employee ppm C mbar ml min ppm ppm h Alt part no Humidity Actual calibration value Days left until maintenance Address Company Manufact no Operating Guide DGS functional tests and calibration procedure Danfoss Climate Solutions 2022 10 A...

Page 8: ... Danfoss Climate Solutions 2022 10 AQ430229665343en 000101 8 ADAP KOOL ...

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