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PWTA SERIES CONDUIT WET PRESSURE TRANSMITTERS
PSID range selection chart below based on the
transmitter label. Selected range will scale the PWTA
transmitter output.
Transmitter PSID Range Selection:
PWTA40
A
10 PSID
B
20 PSID
C
40 PSID
14. Inspect LCD for readings. LCD toggles between sen-
sor A reading, sensor B reading, and PSID reading.
Sensor A reading is indicated by a tick mark on the
top left of LCD. Sensor B reading is indicated by a
tick mark at the bottom left of LCD. PSID reading is
displayed without any mark at the left of the LCD.
O/R symbol will flash in bottom center of LCD if dif-
ferential pressure reading is over range. If this
occurs, select larger PSID range to avoid clipping of
readings.
15. Check remaining jumper configurations for addi-
tional setup options:
[
SENSOR
PSIG
DISPLAY UNITS
TEST MODE
DIRECTION MODE
RESPONSE TIME
SLOW
PORT SWAP
REMOVE FOR ABSOLUTE VALUE
Display Units: LCD will display readings in PSI or kPa.
LCD will indicate PSI or kPa at top of screen.
Test Mode: In "Test Mode" sensor forces outputs to full-
scale for testing wiring and panel setup.
31-00396—01
PWTA100
PWTA250
50 PSID
75 PSID
75 PSID
150 PSID
100 PSID
250 PSID
]
25
50
100
250
PSI
kPa
RUN
TEST
UNI
BI
FAST
A-B
B-A
Direction Mode: PWTA transmitter can be set up in Uni or
Bi directional mode.
Table 1. Bi-Directional Mode Example range set at 100
A
B
100
0
100
50
50
50
50
100
0
100
Response Time: 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.
Port 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. If
this jumper is removed, transmitter is in Absolute
Mode, where values will always be reported positive.
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 LCD blinks
twice) to reset/clear the zero value.
17. Seal remaining conduit knockouts on PWTA trans-
mitter.
CALIBRATION
Honeywell wet pressure sensors are factory calibrated as a
set to each PWTA transmitter.
RECYCLING
Product should not be thrown away in regular trash.
Instead, it should be recycled according to local
municipality.
RoHS Compliant
4
PSID
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
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