PIN-M-02 DPMRA01.A Service Manual
Copyright © Pinssar (Aust) Pty Ltd 2019. The PINSSAR logo is a registered trademark of Pinssar Pty Ltd
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13 Operating Log Guide
13.1 Log Table
At each sample the DPM Reader will collect a number of values which can be used to
help diagnose issues with the reader. There are 24 fields, these being:
Field
Description
Field
Description
Date
The date the sample was
taken
CF.fLaserCurrent
Laser current
Time
The time the sample was
taken
CF.fHeaterCurrent
Air heater current
CF.iSampleNo
Sequence sample number
CF.fBlowerCurrent
Blower Current
CF.iSampleEPOCH
The time the sample was
taken referenced to standard
EPOCH time
CF.iBlowerSpeed
Blower RPM
CF.iSampleStatus
Operating status at time of
sample
CF.fBatteryVoltage
Battery output voltage
CF.iSampleZero
Internal value for amplifier
output
CF.fAmplifierCurrent
Laser Amplifier Current
CF.iSampleData
DPM Value
CF.fCalibrationValue
Laser coefficient value
CF.fValveCurrent
Pinch valve current
CF.iDarkLightReading
Ambient light value
CF.fTemperature
Temp sensor current
CF.fFlowAverage
Average flow value from
airflow sensor
CF.fSensorCurrent
Light sensor current
Sys.sSerialNumber
Reader serial number
CF.fPSUCurrent
Power supply current
CF.fPressure
Air pressure value
CF.fPSUVoltage
Power Supply Output Voltage
CF.fAmbientTemp
Air temperature value
T
ABLE
10
-
L
OG
T
ABLE
D
ATA
F
IELDS
E
XPLANATION
For all amperage and voltage fields (i.e. pinch valve, temp sensor etc) technicians can
refer to the relevant HMI screen for diagnosis information.
13.2 Blower RPM
Consistently high blower RPM (14400 or greater) values may indicate issues with the
airflow through the reader. If there is a blockage (most likely the cyclone filter or purge
filter) in the system, the airflow sensor will notice the drop-in air volume. This will force
the blower speed to increase. If the blockage is significant enough the blower will not
be able to draw enough air through the system and the required air flow will not be
met.
13.3 Dark Light Reading
The dark light reading indicates the amount of ambient light being reflected inside the
chamber. The value should be 0, however values below 300 will not affect the
accuracy of the sample chamber. Values about 300 may be caused by a faulty sensor
amplifier, loose laser or sensor. A build-up of DPM inside the chamber may also
create a high dark light reading.