Delta OHM HD21ABE Manual

Delta OHM HD21ABE Manual Manual pdf 27 page image

- -274.5 PROBES CALIBRATIONThe instruments and sensors are calibrated in the factory; no calibration is usually required by theuser. However, you can perform a new calibration.You can perform the calibration of the CO (Carbon Monoxide) and CO2 (Carbon Dioxide) sensors.With the HD21ABE17 instrument you can also perform the calibration of the RH (RelativeHumidity) sensor.No calibration is allowed for the Temperature sensor (HD21ABE17).To calibrate the probes correctly, a knowledge of and abiding by the physical phenomena on whichthe measurement is based is fundamental: this is the reason why it is recommended to abide by whatis reported below carefully and only to perform new calibrations if technically proficient.PROBES CALIBRATION1) Calibration CO 22) Calibration CO3) Calibration RH▼▲ select exit/cancel confirm4.5.1 CO2 CalibrationUse the arrows ▲▼ to select the 1) Calibration CO 2 item:PROBES CALIBRATION1) Calibration CO 22) Calibration CO3) Calibration RH▼▲ select exit/cancel confirmConfirm with ENTER. The following screen will appear: