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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
Available in pressure ranges from 0/0.25”WC up to 0/15PSI
Output stability of 0.5% FSO
Perfect for a variety of applications such as duct static, VAV and fan control
Easy wiring via a pluggable screw terminal block
Customizable pressure ranges and outputs
Able to handle high overpressure
Two-Wire; 4-20mA Output
Reverse Voltage Protection
| Accuracy*: | <+> |
| 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
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