mDT001 HazMon System Tester Technical Manual /8
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Data Volts High
The sensor is loading the data line and the data high voltage
is lower than required.
Data Volts Low
The sensor is loading the data line and the data line low
voltage is higher than allowed.
Open Wire
For temperature sensors this message indicates that the red
power wire to the sensor is open
Bad Data
The tester was unable to read a valid data packet from the
sensor.
No Sensor
No sensor was detected, the sensor is defective
Serial Number
Sensor’s serial number can be read if there is valid sensor
connected
Measured Value
Sensor’s measurement value can be read if there is valid
sensor connected. When mTC002 and mDC001/2 cards are
tested the values of connected cables can be read, described
below.
Firmware Version
Sensor’s firmware can be read if there is valid mCP001 or
mIP001 sensor connected
The
<Up>
and
<Down>
keys can be used to display further informati
on about the sensor’s
performance.
If the display indicates “
Sensor Good
”, use the
<Down>
key to verify the value
being returned by the sensor. The tester display
s the sensor’s value in real world units for
verification.
The following table describes the available display starting from the status display described
above:
Key
Function
Description
Down 1
Real-time display
The sensor type and real-time value for the sensor are
displayed in the units suitable for the sensor. Verify the
sensor’s output using this function.
Down 2
Serial number display
The sensor’s serial number is displayed. The serial
number should agree with the serial number printed on
the sensor’s label.
Down 3
Sensor Version
Sensor version is displayed. This function is only valid
for mCP001 and mIP001 sensors
Up 1
Sensor Power
The sensor power voltage level is displayed. If this
voltage is too low it indicates the sensor is drawing
excessive power.
Up 2
Sensor Data Low
The data low voltage level on the network is displayed. If
this voltage is too high, the sensor has resistance
between the green data wire and the red power wire.
