美國controller數(shù)顯微差壓變送器865系列
Series 865 Pressure Transducer with Display
Specifications
| Accuracy*: | <+/-1.0% 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**: | 12-24 VDC/24VAC |
| Supply Current: | <30mA |
| Load Resistance: | 2KΩ minimum on voltage out, 250Ωmaximum loop resistance on 4-20mA output (500Ω max loop resistance available upon request**) |
| Output Signal: | 1-5VDC, 1-6VDC, 1-10VDC** or 4-20mA*** (call for custom outputs) |
| Circuit Protection: | Output limited and reverse voltage protected |
| 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
** An input of 18-24VDC/AC is required to drive a 500Ω load; the same input is also required for a 1-10VDC output
*** 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 | Output Signal | FSO Pressure Range | Calibration Pressure |
|---|---|---|---|---|
| 865 | D = Differential or Gage* | 0…..1 to 5 volts | 0…..0.25″WC to 5″WC | Customer designated exact FSO |
| 1…..1 to 6 volts | 1…..>5″WC to 13″WC | |||
| 2…..1 to 10 volts** | 2…..>0.5PSI to 1PSI | |||
| 3…..4-20mA (250Ω load) | 3…..>1PSI to 5PSI | |||
| 4…..4-20mA (500Ω load)** | 4…..>5PSI to 15PSI | |||
| 5…..Custom Output |
Example: 865D-01 Cal Pressure = 6” WC. “Pressure Range” is not a specific number. Please indicate exact calibration pressure. (This unit has an output of 1-5 VDC and will be calibrated to 6” WC.) If a custom output is needed, the exact output must be specified.
* With a gage application, one of the two ports is vented to atmosphere
** With a 1-10 VDC output as well as with a 4-20mA output that needs to drive a 500Ω load a 18-24
VDC/24VAC input is required.
Features and Applications
- Easy to read display (0.38” height)
- Available in pressure ranges from 0/0.25”WC up to 0/15PSI
- Output stability of 0.5% FSO
- Perfect for a variety of air and inert gas applications such as duct static, VAV and fan control
- Easy wiring via a pluggable screw terminal block
- Pressure range calibrated to customer’s specific requirement
- Able to handle high overpressure
- Internally conditioned allowing it to automatically accept unregulated 12- 24 VDC or 24 VAC power
- Reverse Voltage Protection
