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Ø0.200"
5.47"
5.28"
Precautions
REMOVE POWER BEFORE WIRING. NEVER CONNECT OR DISCONNECT WIRING WITH THE
POWER APPLIED. DO NOT ALLOW LIVE WIRES TO TOUCH THE CIRCUIT BOARD.
AN ISOLATION TRANSFORMER IS RECOMMENDED WHEN POWERING THE DEVICE WITH
24VAC.
DO NOT RUN THE WIRING IN ANY CONDUIT WITH LINE VOLTAGE.
FAILURE TO WIRE DEVICES WITH THE CORRECT POLARITY WHEN USING A SHARED
TRANSFORMER MAY RESULT IN DAMAGE TO ANY DEVICE POWERED BY THE SHARED
TRANSFORMER.
DO NOT SWITCH PRESSURE RANGE AND OUTPUT MODE WHEN POWER IS ON. MAKE SURE TO
POWER OFF THE UNIT FIRST, THEN MOVE JUMPERS TO THE RIGHT POSITIONS AND THEN
POWER ON THE TRANSMITTER.
DO NOT APPLY ANY EXTERNAL VOLTAGE TO ZERO TERMINALS.
DO NOT REPLACE PRESSURE SENSORS WITH ANY OTHER SENSORS. DO NOT INTERCHANGE
THE HIGH AND LOW SENSORS. THE HIGH AND LOW SENSORS ARE SPECIFICALLY CALIBRATED
TO THE WPR2 UNIT.
ANY CHANGES TO THE SENSORS WILL VOID THE PRODUCT WARRANTY
Installation and Operation Instructions
2.60"
4.47"
3.00"
Figure 1: WPR2-300 Dimensions and Hardware
Wet to Wet Differential Pressure
Page 1 of 5
WPR2-300 Series
Version : 7.0
I0000762
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Summary of Contents for aci WPR2-300 Series
- Page 1 Installation and Operation Instructions WPR2-300 Series Wet to Wet Differential Pressure Ø0.200" 2.60" 4.47" 5.47" 5.28" 3.00" Figure 1: WPR2-300 Dimensions and Hardware Precautions REMOVE POWER BEFORE WIRING. NEVER CONNECT OR DISCONNECT WIRING WITH THE POWER APPLIED. DO NOT ALLOW LIVE WIRES TO TOUCH THE CIRCUIT BOARD.
- Page 2 “ERROR” and “OVR” icons will flash twice. Pressure Connections The WPR2-300 Series have 1/4"-18NPT male fittings. The sensors are labeled “SENSOR HIGH” and “SENSOR LOW”; MAKE SURE THE SENSORS ARE WIRED TO THE CORRESPONDING TERMINAL BLOCK INSIDE THE HOUSING. Otherwise ACI will not guarantee the accuracy specifications. DO NOT REPLACE SENSORS WITH ANY OTHER SENSORS.
- Page 3 Pressure Snubbers are optional with each WPR2-300 unit. The Pressure Snubber is used to dampen pressure surges. A pigtail siphon should be used to lower the media temperature below 230°F (110°C) to prevent damage to the pressure sensor. W PR2-300 ACI/W PR Installation Power High Supply Voltage &...
- Page 4 The differential pressure could be lower When measuring from the HIGH Sensor terminal or higher than the selected range. Block “GND” to “OUT”. If out of range call ACI for Technical support. “OVR” icon on Display will be on when 2.
- Page 5 Table 2: Product Specifications Warranty Specification The ACI WPR2 Series is covered by ACI’s Five (5) Year Limited Warranty, which is located in the front of ACI’S SENSORS & TRANSMITTERS CATALOG or can be found on ACI’s web site: Version : 7.0...
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