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PIN-M-02 DPMRA01.A Service Manual
Copyright © Pinssar (Aust) Pty Ltd 2019. The PINSSAR logo is a registered trademark of Pinssar Pty Ltd
Page 82 of
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F
IGURE
56
-
HEATER
STATUS
P
AGE
fCurrent shows the current consumption of the heater during the last sample. In normal
operation it will be within the range of fCurrentLow and fCurrentHigh. If the fCurrent is
outside of this range monitor the status for two more cycles to see if the issue is
persistent.
If the issue remains, manually turn on the heater with green ON button after placing the
DPM Reader in standby mode as per Section 11.3. Check the status of the thermometer
in HMI window on SYSTEM OVERVIEW page. If the temperature is not rising, then
there is a physical problem with the heater. To isolate the problem, check the status of
relay No 7 on Phoenix Contact Relays by measuring the output voltage using a
multimeter. The digital output voltage should be 5VDC
.
Also check the heater
connection on DPM carrier board is 12VDC. If there is voltage out of the DPM Carrier
Board heater header then the heater will need to be replaced.
12.3 Amplifier
From the SYSTEM OVERVIEW page, clicking on the AMPLIFIER box will take the user
to the AMPLIFIER STATUS page (Figure 57). This will allow operators to monitor and
manually control the state of the amplifier. The amplifier takes the sensor input (mV
ranges) and amplifies it to scalable values for sampling calculation.