Vaisala WMT700 - Manual (Page 153)

Chapter 5 _________________________________________________________________ Operation
A listing for the command response is given below with
representative values.
P Heater voltage 22.3 Volts
P Array heater resistance 4.9 Ohms
P Heaters off voltage 0.1 Volts
P Incoming supply voltage 12.2 Volts
P 5.0 volt supply 5.05 Volts
P 10 volt supply 10.2 Volts CR LF
- Bad 1 second reading counter 0
P Path 0 signal quality index 99
P Path 1 signal quality index 99
P Path 2 signal quality index 99
P Path 3 signal quality index 99
P Path 4 signal quality index 99
P Path 5 signal quality index 99
The test limits for the various tests are as listed below:
- Heater voltage good in range 18.0 to 26.0 V
-
Array heater resistance good in range 4.0 to 6.0 Ω
- Heaters off voltage good if below 0.5 V
- Incoming supply voltage good in range 10.5 to 13.5 V
- 5.0 V supply good in range 4.5 to 5.5 V
- 10 V supply good in range 9.0 to 11.0 V
- Signal Quality Index good above 50
VAISALA _______________________________________________________________________ 151