aci P51 Series Installation & Operation Instructions Download Page 4

W.E.E.E. DIRECTIVE 

At the end of their useful life the packaging and product should be disposed of via a suitable recycling 
centre. Do not dispose of with household waste. Do not burn.

WARRANTY

The P51 Series Pressure transducers are covered by ACI's Two (2) Year Limited Warranty. The warranty can 
be found in the front of ACI's Sensors & Transmitters catalog, as well as on ACI's website, www.workaci.com.

TROUBLESHOOTING

Automation Components, Inc.

2305 Pleasant View Road  |  Middleton, WI 53562

Phone:

 1-888-967-5224  |  

Website:

 workaci.com

Page 4

Version: 3.0

I0000792

PROBLEM

No Output or Output Signal Reading Low:

Output Signal is Inaccurate:

SOLUTION(S)

Confirm the DC supply voltage is:

0.5 to 4.5 VDC Output Only: 5.00 VDC +/- 0.500 VDC.

4 to 20 mA and 1 to 5 VDC Outputs Only: +8 to 30 VDC (No 

Load).

4-20 mA Output: 250 Ohm Load: +13 to 30 VDC | 500 Ohm Load: 

+18 to 30 VDC.

Disconnect the sensor from the line to ensure No debris or sediment 

is blocking the inlet port of the transducer.

If a clear vent tube is present (I24 models only), confirm that the tube 

is not kinked or has been removed.

Determine that the proper output is being transmitted based on the 

predetermined span. Measure the output of the transmitter with a 
handheld multimeter and compare the measured output to calculate 
output.

Summary of Contents for P51 Series

Page 1: ...pressure snubber is a cost effective solution that can extend the life of your sensor by smoothing out pressure spikes surges and pulsations and prevent debris from collecting in the sensor diaphragm opening The A 0 25 Snubbers are made of 316 Stainless Steel and should be used with compatible materials Syphons The A Syphon must be used to protect the sensor from extreme operating temperatures whe...

Page 2: ...kPa we recommend the use of a sealant such as Loctite Hydraulic Sealant Do not use excessive amounts of sealant or you might block the pressure going into the transducer Install the device using a wrench on the hex flats provided Do not use a strap wrench on the body When installing the sensor the torque limit will vary see the Torque Limits Table for more detail Do Not over tighten Overtightening...

Page 3: ... Tube on I24 Lead Style Only Optional 250 Ohm or 500 Ohm Load Resistor for a 1 5 VDC or 2 10 VDC Output SHIELD POWER SUPPLY 13 TO 30 VDC AUTOMATION PANEL AI1 FIGURE 4 VOLTAGE WIRING DIAGRAM COM RED WIRE WHITE WIRE BLACK WIRE Note Clear Vent Tube on I24 Lead Style Only AI1 AI2 VDC Analog Input CLEAR VENT TUBE SHIELD POWER SUPPLY 5 TO 30 VDC AUTOMATION PANEL AI1 VOLTAGE OUTPUT CONNECTIONS Connect th...

Page 4: ...ci com Page 4 Version 3 0 I0000792 PROBLEM No Output or Output Signal Reading Low Output Signal is Inaccurate SOLUTION S ConfirmtheDCsupplyvoltageis 0 5 to 4 5 VDC Output Only 5 00 VDC 0 500 VDC 4 to 20 mA and 1 to 5 VDC Outputs Only 8 to 30 VDC No Load 4 20 mA Output 250 Ohm Load 13 to 30 VDC 500 Ohm Load 18 to 30 VDC Disconnect the sensor from the line to ensure No debris or sediment isblockingt...

Page 5: ...C 40 to 176ºF 40 to 80ºC 304L or 316L Stainless Steel See Datasheet for more details 0 to 95 RH non condensing Any gas or liquid compatible with 304L or 316L Stainless Steel All Ports except U and Y 150 lbs in 16 95 Nm Ports U and Y 120 lbs in 13 56 Nm Packard Connector Cables ordered separately per Ordering Grid on back of data sheet 124 24 Lead Length PVC Jacketed Cable 18 0 823 mm2 or 24 AWG 0 ...

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