Installation and Operation Instructions
PS-50xx-NQ-xx-AB Series
Please Read Instruction Carefully Before Installation!
Product Specifications
Supply Voltage
Output Signal
Accuracy
(Non-linearity, Hysteresis, Repeatability)
Stability
Thermal Error -40 to 221°°F (-40 to 105°°C)
Response Time
Burst Pressure
8 - 30 VDC
Proof Pressure
2-Wire, 4 – 20 mA (PS-50xx-NQ-MA-AB)
Operating Temp. Range
2-Wire, 1 – 5 VDC (PS-50xx-NQ-D5-AB) 1
2-Wire, 2 – 10 VDC (PS-50xx-NQ-D1-AB) 2
Process Fitting
75 to 1000 psi: ± 0.5% of FS
15 to 60 psi: ± 1.00% of FS
Case & Fitting
± 1% Full Scale
< 0.50 % Full Scale
EMC Compliance
< 1ms
Weight
3X Full Scale
1
Shipped with 249 Ohm, 1%, ¼ Watt Resistor
2
Shipped with 499 Ohm, 1%, ¼ Watt Resistor
Part Number
PS-5030-NQ-MA-AB
PS-5030-NQ-D5-AB
PS-5030-NQ-D1-AB
PS-5040-NQ-MA-AB
PS-5040-NQ-D5-AB
PS-5040-NQ-D1-AB
PS-5050-NQ-MA-AB
PS-5050-NQ-D5-AB
PS-5050-NQ-D1-AB
PS-5060-NQ-MA-AB
PS-5060-NQ-D5-AB
PS-5060-NQ-D1-AB
PS-5070-NQ-MA-AB
PS-5070-NQ-D5-AB
PS-5070-NQ-D1-AB
PS-5080-NQ-MA-AB
PS-5080-NQ-D5-AB
PS-5080-NQ-D1-AB
Pressure Ranges
0 to 15 PSI
0 to 15 PSI
0 to 15 PSI
0 to 50 PSI
0 to 50 PSI
0 to 50 PSI
0 to 100 PSI
0 to 100 PSI
0 to 100 PSI
0 to 200 PSI
0 to 200 PSI
0 to 200 PSI
0 to 500 PSI
0 to 500 PSI
0 to 500 PSI
0 to 1000 PSI
0 to 1000 PSI
0 to 1000 PSI
Sensing Type
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Vented Gage
Sealed Gage
Sealed Gage
Sealed Gage
Sealed Gage
Sealed Gage
Sealed Gage
3X Full Scale
-40 to 221°F (-40 to 105°C)
¼” – 18 NPT Male Thread
304L Stainless Steel
10 Volts / Meter
< 0.206 lbs. (93 grams)
Output
4 – 20 mA
1 – 5 VDC
2 – 10 VDC
4 – 20 mA
1 – 5 VDC
2 – 10 VDC
4 – 20 mA
1 – 5 VDC
2 – 10 VDC
4 – 20 mA
1 – 5 VDC
2 – 10 VDC
4 – 20 mA
1 – 5 VDC
2 – 10 VDC
4 – 20 mA
1 – 5 VDC
2 – 10 VDC
General Information
The PS-50xx-NQ-xx-AB Series units are a 2-wire, 4-20 mA gage pressure transmitter. The 4-20 mA current output will be
proportional to the pressure applied and can be operated over the temperature range of –40 to 122°F (-40 to 105°C).
The PS-50xx-NQ-D5-AB Series units are shipped from the factory with a 249 Ohm, 1%, ¼ watt resistor to convert
the 4-20 mA output to a 1 to 5 VDC voltage output. The PS-50xx-NQ-D1-AB Series units are shipped from the
factory with a 499 Ohm, 1%, ¼ watt resistor to convert the 4-20 mA output to a 2 to 10 VDC voltage output.
Mounting Instructions
The PS-50xx-NQ-xx-AB Series units are a compact, robust package made from a laser-welded stainless steel design that
can be used in harsh and benign environments. The PS-50xx-NQ-xx-AB Series gage pressure transmitters are compatible
with a wide range of gases and liquids such as air, water, wastewater, Hydrogen, Nitrogen, hydraulic fluid, steam, and many
others. The PS-50xx-NQ-xx-AB Series gage pressure transmitters have a pressure port that is a ¼”-18 NPT male fitting
made of 304L stainless steel. Each unit is approximately 2.60” long and weighs approximately 0.206 lbs (93 grams). The
PS-50xx-NQ-xx-AB Series units come with a 2 conductor 18 AWG shielded cable 2’ in length for making all of the proper
I0000496 Rev 2.Doc
2305 Pleasant View Rd. Middleton Industrial Park Middleton, WI 53562
PH: (608) 831-2585 FAX (608) 831-7407
www.workaci.com
connections. Typically, standard pipe fittings and procedures should be used during installation. The torque speciation for
mounting the gage pressure port is 2 T.F.F.T. (Turns From Finger Tight). However, for pressure ranges in excess of
500 psi, we recommend the use of a sealant such as Loctite Hydraulic SealantTM.
!
Caution:
- Wiring must comply with all applicable local and national electrical codes.
- Do not run the gage pressure transmitter wiring in any conduit with mains power system wiring.
Warning:
- Remove power before wiring! Never connect or disconnect wiring with power applied.
Wiring Instructions
The PS-50xx-NQ-xx-AB Series gage pressure transmitter is a true 2-wire, 4 – 20 mA current output device. There are
3-wires that need to be connected from the pressure transmitter to the controller. The RED wire is the positive voltage, the
WHITE wire is the 4 – 20 mA current loop output to the controller. The SHIELD wire should be connected to the system
common or earth ground. These units are reverse polarity protected.
ACI recommends the use of 18-22 AWG shielded cable for all installations. When using a shielded cable, be sure to
connect the cable shield to the ground at the controller ONLY.
Verify all wire connections are properly configured as per Figures #1 and #2 before initially powering the unit.
Now verify that you are getting a pressure reading on your Building Automation System.
PS-50xx-NQ-MA-AB Series
DC Power Supply
Automation Panel
24 VDC
+
4 - 20 mA
Input
-
Shield
Red Wire (8 to 30 VDC)
White Wire (4-20mA)
Figure # 1
I0000496 Rev 2.Doc
2305 Pleasant View Rd. Middleton Industrial Park Middleton, WI 53562
PH: (608) 831-2585 FAX (608) 831-7407
www.workaci.com
Common
PS-50xx-NQ-D5-AB Series
PS-50xx-NQ-D1-AB Series
DC Power Supply
Automation Panel
24 VDC
+
Analog
Input
-
Signal
Common
249 Ohm, 1%, 1/4 Watt Resistor (1 - 5 VDC)
499 Ohm, 1%, 1/4 Watt Resistor (2 - 10 VDC)
Shield
Red Wire (8 to 30 VDC)
White Wire (4-20mA)
Figure # 2
Troubleshooting
No reading - Check that you have the correct power supply voltage at the unit.
- Verify all wire connections are connected and that all of the wires are firmly in place.
Erratic readings - Verify that all of the wires are terminated properly (No loose connections).
- Check that the input power is clean. In areas of high RF interference or noise, shielded cable may be
necessary to stabilize signal.
Inaccurate readings - If you suspect that the transmitter is not reading within the specified tolerance please contact ACI
for assistance.
Gage Pressure Conversion Formulas
To convert transmitter output signal to gage pressure.
4-20 mA to Pressure
(4 mA = 0 psi and 20 mA = 500 psi)
Example: 12mA transmitter signal output
Multiplier = 16 mA (transmitter span) / 500 psi (pressure span) = 0.032
(12mA-4mA)/ 0.032 = 250 psi
1-5 VDC to Pressure
(1 VDC = 0 psi and 5 VDC = 500 psi)
Example: 3.0 VDC transmitter signal output
Multiplier = 4 VDC (transmitter span) / 500 psi (pressure span) = 0.008
(3.0 VDC-1.0 VDC) / 0.008 = 250 psi
2-10 VDC to Pressure (2 VDC = 0 psi and 10 VDC = 500 psi)
Example: 8 VDC transmitter signal output
Multiplier = 8 VDC (transmitter span) / 500 psi (pressure span) = 0.016
(8 VDC – 2 VDC) / 0.016 = 375 psi
WEEE Directive
At the end of their useful life the packaging and product should be disposed of via a suitable recycle centre. Do not dispose
of with household waste. Do not burn.
I0000496 Rev 2.Doc
2305 Pleasant View Rd. Middleton Industrial Park Middleton, WI 53562
PH: (608) 831-2585 FAX (608) 831-7407
www.workaci.com