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PW SERIES CONDUIT WET PRESSURE TRANSMITTERS
15. Check remaining DIP switch (8-12) configurations for
additional setup options:
Display Units: LCD will display readings in PSI or kPa. LCD
will indicate PSI or kPa at the top of the screen.
UNI/BI: PWTB transmitter can be set up in Uni or Bi-direc-
tional mode.
A
B
100
0
100
50
50
50
50
100
0
100
Fig. 6. Bi-Directional Mode Example range set at 100 PSID
Mode: In 'Slow Mode,' the output returns a reading averaged
over 64 samples. In 'Fast Mode,' the output returns the most
recently calculated reading for PSI.
Swap: If sensor A was plumbed to the return (low) side and
sensor B was plumbed to the supply (high) side instead of
re-plumbing the sensors, the Port Swap can be utilized
without a physical reconfiguration.
ABS: In Absolute Mode, values will always be reported
positive.
TROUBLESHOOTING
Symptom
No output
Check the wiring. Ensure power supply meets requirements.
Verify that control panel software is configured for correct output scaling.
Pressure reading
error
Verify switch and jumper settings.
Hold the ZERO button for full 5-seconds until the LCD blinks once.
The device will not
Continue holding the ZERO button for 10-15 seconds until the LCD blinks twice to restore to factory
zero
settings.
Model
PWTB50-X
PWTB50-PC-9
PWTB50-AC-9
PWTB100-X
PWTB100-PC-9
PWTB100-AC-9
PWTB250-X
PWTB250-PC-9
PWTB250-AC-9
31-00539-01
DP
Output
+100
20mA/10V/5V
+50
16mA/7.5V/3.75V
0
12mA/5V/2.5V
-50
8mA/2.5V/1.25V
-100
4mA/0V/0V
Table 2. Troubleshooting Solutions
Table 3. PWTB Sensor Models
Max. Sensor Pressure
50 PSIG
345 kPa
100 PSIG
689 kPa
250 PSIG
1724 kPa
16. To custom zero the device (optional), hold down the zero
button for 5 seconds (until the LCD blinks once). Hold
down for 10 seconds (until the LCD blinks twice) to
reset/clear the zero value.
CALIBRATION
Honeywell wet pressure sensors are factory calibrated as a set
to each PWTB transmitter.
RECYCLING
The product should not be thrown away in the regular trash.
Instead, it should be recycled according to the local
municipality.
Solution
Cable Type / Length
Installer provided*
Plenum - 9 feet
Armor - 9 feet
Installer provided*
Plenum - 9 feet
Armor - 9 feet
Installer provided*
Plenum - 9 feet
Armor - 9 feet
4
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