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Specifications

Accuracy*: <+/-1.0% FSO
Stability: +/-1% FSO/yr
Thermal Effects: +/-0.075%/°C
Overpressure: 1-10”WC = 100”WC
11-20”WC = 10x rated pressure
21-30”WC = 5x rated pressure
Over 30”WC = 45 PSI
FSO Pressure Range: 4”WC, 12”WC, 4PSI, 12PSI.  Selectable – see range chart
Compensated Range: 10° to 50°C
Adjustments: Offset (for adjusting offset when selecting ranges)
Media: Non-corrosive, non-ionic gases
Operating Humidity: 90% RH non-condensing
Operating Temp: -25° to 70°C
Input Supply: 18-24 VDC/24VAC
Supply Current:  
Load Resistance: 2KΩ minimum on voltage output, 500Ω maximum loop resistance on 4-20mA output
Output Signal: Selectable: 1-5VDC, 1-10VDC, 4- 20mA**
Electrical Connections: Pluggable Screw Terminal Block
Pressure Connections: Barbed fitting for 1/8” ID tubing
Enclosure: Impact resistant ABS plastic
Dimensions: Approx. 3.5” x 2.7” x 1.4” (8.7cm x 6.8cm x 3.5cm)

* Includes non-linearity hysteresis and non-repeatability at a fixed temperature
** 3-wire 4-20mA

Package Drawing

How to Order

A typical order number consists of the model number, pressure range, pressure unit, output and mounting connection.

Model Type Version Selectable Pressure Ranges Selectable Output Signals
851 D = Differential or Gage* 4WC 0-4”WC; 2”WC, 1”WC, 0.5”WC
+/-2”WC; +/-1”WC; +/-0.5”WC; +/-0.25”WC
1-5VDC
1-10VDC
4-20mA**
12WC 0-12”WC; 6”WC; 3”WC; 1.5”WC
+/-6”WC; +/-3”WC; +/-1.5”WC; +/-0.75”WC
4PSI 0-4PSI; 2PSI; 1PSI, 0.5PSI
+/-2PSI; +/-1PSI; +/-0.5PSI; +/-0.25PSI
12PSI 0-12PSI; 6PSI; 3PSI, 1.5PSI
+/-6PSI; +/-3PSI; +/-1.5PSI; +/-0.75PSI