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当前位置：> 供求商机> 851系列可调压力范围变送器规格
| 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
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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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