SENVA PW30 Wet Pressure Transmitter Instruction Manual
- June 9, 2024
- SENVA
Table of Contents
PW30 Wet Pressure Transmitter
Instruction Manual
INSTALLATION INSTRUCTIONS
PW30
Wet-Wet Pressure Transmitter
PW30 Wet Pressure Transmitter
IMPORTANT WARNINGS
- Only qualified trade installers should install this product
- This product is not intended for life-safety applications
- Do not install in hazardous or classified locations
- The installer is responsible for all applicable codes
- De-energize power supply prior to installation or service
PRODUCT APPLICATION LIMITATION:
Senva products are not designed for life or safety applications. Senva
products are not intended for use in critical applications such as nuclear
facilities, human implantable device or life support. Senva is not liable, in
whole or in part, for any claims or damages arising from such uses.
IMPORTANT!
-Do NOT exceed gauge pressure rating of sensor.
-Use ONLY Senva gauge pressure sensors provided with your PW transmitter to obtain the specified transmitter accuracy.
-Follow instructions step by step to ensure proper setup.
INSTALLATION
1. Identify PWC sensors A & B and their respective PSIG rating.
If the expected system gauge pressure exceeds the PSIG rating on the PWT
sensors call factory and DO NOT proceed with install.
2. Plumb PWT sensors to media. Sensor A is intended for supply
pressure and sensor B is intended for return pressure of the system. Plumb PWT
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 PWT sensors threads, or other thread
sealing alternative, to improve sensor accuracy.
No bypass valve manifold is necessary. Use only Senva gauge pressure sensor
elements provided with your transmitter. Optional shutoff valves are available
– Senva recommends closing service valves when flushing system to prevent
containments and water hammer from damaging PWT sensing elements.
4. Run the appropriate length cables between the PW transmitter and PWT
sensors.
Senva recommends 22AWG stranded, 4 conductor shielded cable to wire between
the PW transmitter and PWT sensors.
5. Loosen the top screw on each PWT sensor and remove the terminal block for
wiring as shown below:
6. Run the cable through the conduit
adapter and connect the wires to the PWT terminal block. Note that the conduit
terminal block is numbered and color coded to match the terminal label colors
on the PW transmitter.
IMPORTANT: DO NOT connect the shield at the PWT sensor element end. The
shielding should only be connected to the ground terminal at the PW
transmitter end.
| Pin | Connection | Color |
|---|---|---|
| 1 | PWR | Red |
| 2 | GND | Green |
| 3 | Signal (S1/S2) | White |
| Shield| Black
7. Reassemble the PWT conduit adapter and terminal block.
Place the rubber cover back on the conduit adapter and plug the adepter onto
the PWT sensor. Tighten the assembly screw. DO NOT attempt to plumb or tighten
the PWT sensors while wires are attached, as you run the risk of pulling wires
from cable attachments.
8. Wire PWT sensors A & B to the PW Transmitter terminals labeled A & B
respectively. See above table if wiring a pre ordered cable length for color
coordination. For strain relief, tighten cable glands.
IMPORTANT: Shielding should
be connected to the shield ( **) Terminal at the PW transmitter end, and
left unconnected at the PWT sensor element end.
9. Connect conduit fittings to the PWT sensors and PW transmitter. Use water
tight fittings if required by your installation conditions.
10. Wire PW transmitter for voltage or current output as shown (Remote zero
wiring is optional):
11. Select 20mA, 5V or 10V output using
OUTPUT switch based on wiring configuration.
12. Configure output range and sensor PSIG using DIP switches 1-7.
DIP 1-3 set the sensor PSIG corresponding to the PWT ordered. DIP 4-7 are used
to set the desired output signal range. Both use the binary code system
outlined in the table.
PW Transmitter DIP Switch Configuration:
DIP Switch Settings**
| DIP | Function | LEFT | RIGHT |
|---|---|---|---|
| 1 | SENSOR2 | 0 (off) | 1 (on) |
| 2 | SENSOR1 | 0 | 1 |
| 3 | SENSOR0 | 0 | 1 |
| 4 | RANGE3 | 0 | 1 |
| 5 | RANGE2 | 0 | 1 |
| 6 | RANGE1 | 0 | 1 |
| 7 | RANGE0 | 0 | 1 |
| 8 | Units | KPA | PSI |
| 9 | UNI/BI | BI | UNI |
| 10 | MODE | FAST | SLOW |
| 11 | SWAP | B-A | A-B |
| 12 | ABS | ABS | +/- |
| DIP | Binary | SENSOR (PSIG) | |
| --- | --- | --- | |
| 1-3 | 000 | TEST | |
| 001 | 15* | ||
| 010 | 25* | ||
| 011 | 50 | ||
| 100 | 100 | ||
| 101 | 200* | ||
| 110 | 250 | ||
| 111 | 500 | ||
| DIP | Binary | RANGE (PSID) | |
| 4-7 | 0000 | 0-1 | |
| 0001 | 0-2 | ||
| 0010 | 0-5 | ||
| 0011 | 0-10 | ||
| 0100 | 0-15 | ||
| 0101 | 0-20 | ||
| 0110 | 0-25 | ||
| 0111 | 0-30 | ||
| 1000 | 0-40 | ||
| 1001 | 0-50 | ||
| 1010 | 0-75 | ||
| 1011 | 0-100 | ||
| 1100 | 0-125 | ||
| 1101 | 0-150 | ||
| 1110 | 0-250 | ||
| 1111 | 0-500 |
*15, 25 and 200 PSIG sensors are not offered by senva
13. Inspect LCD for readings. LCD toggles between sensor 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 differential pressure reading
is over range. If this occurs, select larger PSID range to avoid clipping of
readings.
14. Check remaining DIP switch (8-12) configurations for additional setup
options:
Units: LCD will display readings in PSI or kPa. LCD will indicate PSI or kPa
at top of screen.
UNI/BI: PW transmitter can be setup in Uni or Bi directional mode.
Bi-Directional Mode Example range set at 100 PSID:
| A | B | DP | OUTPUT |
|---|---|---|---|
| 100 | 0 | +100 | 20mA/10V/5V |
| 100 | 50 | +50 | 16mA/7.5V/3.75V |
| 50 | 50 | 0 | 12mA/5V/2.5V |
| 50 | 100 | -50 | 8mA/2.5V/1.25V |
| 0 | 100 | -100 | 4mA/0V/0V |
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 PWT sensor A was plumbed to the return (low) side and PWT 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.
15. 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.
16. Seal remaining conduit knockouts on PW transmitter.
SENVA TECHNICAL SUPPORT
Need further assistance? Call our toll-free number for live technical support: 866-660-8864 or feel free to email us at [email protected]
DIMENSIONS
PW30W
SPECIFICATIONS
Power supply| Voltage output mode (0-5v) Voltage output mode (0-10v) Current
(4-20mA) output mode| 12-30VDC/24VAC (1), 20mA max.
13-30VDC/24VAC required for 10V FS output 15-30VDC(0 ohm)/16-30VDC (250 Ohm)/
18-30VDC (500 Ohm) , 20mA max.
---|---|---
Outputs| Switch selectable| 2-wire 4-20mA, 3-wire 0-5V/10V
Operating Temperature| Transmitter| -22 to 158oF (-30 to 70C)
Media Compatibility| Type Temperature| Water, other 316 SS compatible media
(316L diaphragm) 32 to 250oF (0-125oC)
Zero adjustment| Automatic| Pushbutton, Remote zero
Press button for 5 seconds to re-zero
Hold for 10 seconds to restore factory settings
Sensor Type| | Micro-machined silicon strain gauge
PW Transmitter Accuracy(2)
Range according to PSID table in PW Transmitter DIP Switch Configuration
table| Sensor PSIG| 2% Accurate ranges| 1% Accurate ranges
25| 0-1 / 0-2 PSID| 0-5 / 0-10 / 0-15 / 0-20 / 0-25 PSID
50| 0-10 / 0-15 PSID| 0-20 / 0-25 / 0-30 / 0-40 / 0-50 PSID
100| 0-15 / 0-20 / 0-25 / 0-30 PSID| 0-40/ 0-50 / 0-75 / 0-100 PSID
250| 0-30 / 0-40 / 0-50 PSID| 0-75 / 0-100 / 0-125 / 0-150 / 0-250 PSID
500| 0-75 / 0-100 / 0-125 PSID| 0-150 / 0-250 / 0-500 PSID
Sensor Performance| Accuracy| < +/-0.25% BFSL
Stability (1 year)| +/-0.2% FS, typ
Over-range protection| 200% rated pressure
Pressure Cycles| > 100 Million
Compensated Range| 14 to 158oF (-10-70oC)
Temperature Compensation
%FS/C| Zero, <+/-0.03(<100kPa), <+/-0.02( >100kPa) Span,<+/-0.03(<100kPa),
<+/-0.02( >100kPa)
Vibration| 10G peak, 20 to 2000 Hz.
Enclosure, PW30M| Construction| Powder coated steel
Rating| NEMA 3R
Enclosure, PW30W| Construction| PC/ABS
Rating| NEMA 4X
Enclosure, PWT[xxx] Sensor| Construction| Stainless Steel, 304, 1/4” MNPT, PG9
Conduit Fitting
- One side of transformer secondary is connected to signal common. Dedicated transformer is recommended.
- Because of lower accuracy, it is not factory recommended to use an output range less that 10% of the total sensor PSIG.
TROUBLESHOOTING
Symptom|
Solution
---|---
No output| Check wiring. Ensure power supply meets requirements
Pressure reading error| Verify control panel software is configured for
correct output scaling
Verify switch and jumper settings
Device will not zero| Hold ZERO button for full 5-seconds until LCD blinks
once
Continue holding ZERO button for 10-15 seconds, until LCD blinks twice, to
restore factory settings
Issued1/6/2021 Document #152-0412-0C