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Operation Manual HORIBA APDA-371
Particulate Monitor
Date:
April, 2010
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HORIBA Europe GmbH, Julius-Kronenberg-Str. 9, D-42799 Leichlingen,
: +49(0)2175-8978-0,
: +49(0)2175-8978-50
Page 54
FILTER TEMPERATURE CALIBRATION
BAM: 26.1 C
REFERENCE: 26.1 C
CALIBRATE RESET Exit
The FILTER-T Test Screen
7.19
RH Test Menu – Filter Humidity Sensor
The TEST > RH screen is used to calibrate the filter relative humidity sensor located in the air stream beneath the filter
tape. This screen works just like the FILTER-T screen described above. Allow the pump to run for at least 5 minutes to
allow the sensor to equilibrate. Press the RESET hot key to clear out any past calibration values, then enter the ambient
room relative humidity from your reference standard into the REFERENCE field and press the CALIBRATE hot key.
The APDA reading should change to match within +/- 4% RH. The RESET hot key can be used to revert to default
calibrations and start over if difficulty is encountered. Older revisions of APDA firmware contain a different test screen
for this sensor.