Hach PAH500 Manuel De L'utilisateur page 21

4.11 Sensor diagnostic and test menu
The sensor diagnostic and test menu shows current information about the instrument. To go to the
sensor diagnostic and test menu, select SENSOR SETUP > [select sensor] > DIAG/TEST.
Option Description
PROBE INFO Shows the sensor name. Select SERIAL NUMBER to show the serial numbers of the sensor
and digital gateway. Shows the software version, code version, driver version and production
date of the digital gateway.
COUNTERS LED OPERATION —Shows the number of hours the UV LED has been in operation.
CAL DAYS—Shows the number of days since the last sensor calibration. The CAL DAYS
value is set to zero when the 2-point calibration procedure is completed.
CLEAN DAYS—Shows the number of days since the last sensor cleaning.
CLEAN SENSOR—Sets the CLEAN DAYS value to zero. Select CLEAN SENSOR when the
sensor is cleaned.
RESET SENSOR—Sets the LED OPERATION value to zero. Select RESET SENSOR when
the sensor is replaced.
SENSOR MV RAW—Shows the sensor reading in mV. The mV range is 0 to 5000 mV (approximately
SIGNAL 250mV = 0 μg/L PAH).
SENS ADC CNTS—Shows the digital number that represents the PAH reading.
TEMPERATURE—Shows the inner temperature of the digital gateway.
FACTORY CAL For Service use only
BOARD CAL For Service use only
4.12 Sensor data and event logs
The controller supplies a data log and an event log for each sensor. Measurements are saved to the
data log at the selected interval. Events that occur on the sensor are saved to the event log. Refer to
Event log on page 23.
Refer to the controller documentation to download the data log and/or event log.
English 21