HRW HPD0440BNMR V401 Manual 111116.doc E. & O. E. / Subject to change without notice Page 39 of 43
Passive Sensor Definition
Non factory default passive sensors with thermistor element of 10k
Ω
or greater may be configured
1. Set up a UI raft with suitable resistance links fitted and plug it in to the raft socket of the UI
being used. If the sensor was 20k
Ω
at 25°C then 20k
Ω
would be fitted in link 2 of the UI raft
2. Consult the manufacturers resistance chart for the sensor being used and connect resistance
equivalent to the reference values in Column 1 (note that in the reference column 1 the
reference value 150 is considered as 15°C once the decimal shift of -1 is applied at row 13)
3. Assign an otherwise unused Sensor Type to the test UI
4. In the Main I/O display read and record the raw count value, as displayed to the right of the
units for the UI to which the test resistance is connected
5. Enter the raw count in the table at the corresponding reference value row and column;
<row#><column#>=<raw count>
6. Complete the raw count entry for all reference points
7. If an intercept other than zero (0) is applied then raw count measurements must be at reference
values shifted an equivalent amount
Reset to Factory Default
The
FD=1
reset command also resets changes to the linearization tables