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PWTA SERIES CONDUIT WET PRESSURE TRANSMITTERS
DIMENSIONS
2.6in
CONNECTION WIRING
Honeywell recommends 22 AWG stranded, 4 conductor
shielded cable to wire between the PWTA transmitter and
pressure sensors.
Terminals are rated for 24-14 AWG, 3.5 lb-in of torque.
INSTALLATION
1. Identify PWTA sensors A & B and their respective
PSIG rating.
If the expected system gauge pressure exceeds the
PSIG rating on the PWTA sensors call factory and DO
NOT proceed with install.
PWTA40-X = 100 PSIG (50/75/100 PSID)
PWTA100-X = 100 PSIG (10/20/40 PSID)
PWTA250-X = 250 PSIG (75/150/250 PSID)
2. Plumb sensors to media. Sensor A is intended for
supply pressure and sensor B is intended for return
pressure of the system. Plumb sensors to the side or
top of pipe, as plumbing to the bottom will cause
sediment to settle and could clog or affect sensor
accuracy.
It is advisable to use a single wrap of PTFE tape on
the sensor thread sealing alternative, to improve
sensor accuracy.
No bypass valve manifold is necessary. Use only
Honeywell gauge pressure sensor elements provided with
your transmitter.
31-00396—01
1.62in
ø 0.89in
6.12in
8.12in
1.25in
ø 0.875in
Optional shutoff valves are available
Honeywell recommends closing service valves when
flushing system to prevent contaminants and water
hammer from damaging sensing elements.
3. Mount the PWTA transmitter and run conduit (if
required) between the transmitter and the sensors.
4. Run the appropriate length cables between the
PWTA transmitter and sensors.
Honeywell recommends 22 AWG stranded, 4 con-
ductor shielded cable to wire between the PWTA
transmitter and the sensors.
5. Loosen the top screw on each sensor and remove
the terminal block for wiring as shown below:
Conduit Adapter
Terminal Block
6. Run the cable through the conduit adapter and con-
nect the wires to the sensor terminal block. Note that
the conduit terminal block is numbered and color
coded to match the terminal label colors on the
PWTA transmitter.
Reassemble the sensor conduit adapter and termi-
nal block. Place the rubber cover back on the conduit
adapter and plug the adapter onto the sensor.
Tighten the assembly screw.
DO NOT attempt to plumb or tighten the sensors
while wires are attached, as you run the risk of pull-
ing wires from cable attachments.
TERMINAL WIRING
TERMINAL COLOR
7. Wire sensors A & B to the PWTA Transmitter termi-
nals labeled A & B respectively. For strain relief, use
the cable clamps as shown below:
2
Rubber Cover
Pressure Sensing Element
1
TERMINAL NUMBER
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