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Dwyer Series 639 Pressure
Transmitter |
| Precision,
Accuracy ±0.08%, Two Wire Operation |
|  The
Series 639 Pressure Transmitters offer outstanding performance
for critical applications with an accuracy of 0.08% F.S. Best
Straight Line for combined effects of non-linearity, hysteresis,
and repeatability. Ideal for industrial environments, sensor
resists effects from shock and vibrations. Zero and span trimpots
located on the rear of the transmitter body can be independently
adjusted. Transmitters feature RFI and EMI, reverse polarity,
and over voltage protection. Units are supplied with a 3 foot
(1m) integral cable with stripped ends for easy installation.
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PHYSICAL DATA |
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- Service: Liquid, Gas or Vapor
- Output: 4-20 mA DC, max. (2 wire)
- Supply Voltage: 9 to 30 VDC
- Loop Resistance: 750 @ 24 VDC
- Temperature Limits: Ambient 15 to 122°F (-10 to 50°C).
Process Interface -20 to 250°F (-29 to 121°C)
- Overrange: 300% upper range limit
- Accuracy: ±0.08% FS BSL including non-linearity,
hysteresis, and repeatability
- Stability: 0.1% F.S. annually
- Zero and Span Adjustable: ±5% each
- Thermal Effect: (includes zero and span) 0.005% F.S./°F,
-20 to 250°F (-29 to 121°C)
- Wetted Parts: 316 SS, Hastelloy C
- Storage Temperature: -40 to 250°F (-40 to 121°C)
- Fill Fluid: Silicone oil
- Process Connection: ¼" NPT(F)
- Electrical Connection: 3 ft. (1 m) integral cable with
stripped ends
- Weight: 1.1 lbs. (0.50 kg)
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MODELS NUMBERS (stock shown in bold) |
| Model Number |
Pressure Range |
| 639-0 |
0 to 1.5 psig (0 to 0.1 bar) |
| 639-1 |
0 to 10 psig (0 to 0.7 bar) |
| 639-2 |
0 to 30 psig (0 to 2 bar) |
| 639-3 |
0 to 100 psig (0 to 7 bar) |
| 639-4 |
0 to 300 psig (0 to 20 bar) |
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