Series 851 Range-Adjustable Pressure Transducer

851

Specifications

Accuracy*:	<+>
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

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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

Example: 851D 4” WC provides a part that has 4”WC FSO with eight (8) rotary switch selectable pressures as designated above as well as the three (3) slide switch selectable outputs as designated above.

* With a gage application, one of the two ports is vented to atmosphere
** All units will drive 500 ohms with the 4-20mA output selection
美国controller可调压力范围变送器851系列

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