美国controller 两线制差压变送器880系列
880系列双线4-20mA的压力传感器

Series 880 Two Wire: 4-20mA Pressure Transducer

Specifications

Accuracy*:	<+/-1% FSO
Stability:	+/-0.5% 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:	0/0.25”WC up to 0/15PSI (bi-directional ranges available)
Compensated Range:	10° to 50°C
Media:	Non-corrosive, non-ionic gases
Operating Humidity:	90% RH non-condensing
Operating Temp:	-25° to 70°C
Input Supply:	14-36VDC loop voltage range (24VAC may be acceptable for certain applications)
Maximum Loop Resistance:	(Voltage Supply-14) x 50 Ω, maximum
Maximum Loop Resistance for >30VDC:	(Voltage Supply-30) x 40 Ω, minimum
Output Signal:	4-20mA; two wire
Electrical Connections:	Pluggable two-wire 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

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

Model	Type	Output Signal	FSO Pressure Range	Calibration Pressure
880	D = Differential or Gage*	4-20mA; Two-wire	0…..0.25″WC to 5″WC	Customer designated exact FSO
			1…..>5″WC to 13″WC
			2…..>0.5PSI to 1PSI
			3…..>1PSI to 5PSI
			4…..>5PSI to 15PSI

* With a gage application, one of the two ports is vented to atmosphere