Differential Pressure Transmitter- Series 632A
Ranges to 200 psid. For compatible liquids or gases. 4-20 mA signal.
Model 632-1
Same ranges and specifications as Model 632A-1 but with special weatherproof housing rated NEMA 4X. Includes 3/4" NPTF conduit opening and two 1/8" NPTF bottom pressure ports. Size 41/4"W X 2 7/8"D X4 1/8"H.
The Dwyer Series 632A Differential Pressure Transmitter monitors and controls positive, negative or differential pressures of air and compatible gases and liquids from 0-30 to 0-200 psig with ± 2% of full span accuracy. The unique design employs twin spirally wound Bourdon tubes operating against a leaf spring with a permanently bonded silicon sensor. Linearity and repeatability are excellent at low cost. Versatile design allows operation in 2,3 or 4-wire control loops. Tamper resistant external zero and span controls are provided with electrical connections made to a 4 screw terminal strip on rear of case.
PHYSICAL DATA.
| GENERAL | ||
| Maximum Pressure: | 500 psig (34 bar) | |
|---|---|---|
| Media Compatibility: | Air and compatible gases and liquids | |
| Materials: | Wetted - brass and beryllium copper. Other - die cast aluminum case with baked dark gray hammerloid finish, acrylic cover. | |
| ELECTRICAL | ||
| Power Supply: | 13-35 VDC - 2, 3 or 4-wire; 18-26 VAC - 4 wire only | |
| Connections: | 4 screw terminal block | |
| Output Signal: | 4-20 mA DC, limited at 38 mA DC | |
| Loop Resistance: | DC, 0-1100 ohms; AC, 0-1130 ohms | |
| Current Consumption: | DC, 38 mA max.; AC, 76 mA max | |
| Warm-Up Time: | 10 minutes | |
| PERFORMANCE AT 70°F (21°C) |
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| Zero Output: | 4 ma DC | |
| Full Span Output: | 20 mA DC | |
| Accuracy: | ±2% of full psan output. (Includes linearity, hysteresis and repeatability) | |
| Stability: | 1% of full span per year | |
| ENVIRONMENTAL |
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| Operating Temperature: | 20 to 120°F (-6.7 to 49°C) | |
| Thermal Error: | ±1% per 50°Ftypical | |
| MECHANICAL |
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| Weight: | 2 lbs., 8 oz. (1.13 g) | |
| Span and Zero Adjustments: | Front mounted potentiometers | |
| Pressure Connections: | Dual 1/8" NPT female located on bottom of cas | |
| Standard Accessories: | Span and zero adjust tool, mounting ring, snap ring, (4) 6-32 x 1 ¼" RH machine screws. | |
MODULE MODELS
| ModelNumber | Ranges in PSI | ||
|---|---|---|---|
| As Stocked | Min. Range | Max. Range | |
| > 632A-1 | > 0-30 psi | > 0-30 psi | > 0-200 psi |