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Dwyer Series 637S Sanitary Pressure Transmitter
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| Meets NACE and 3A Sanitary Standards,
Accuracy ±0.25% |
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 Low
cost, durable sanitary pressure transmitter is
designed to meet 3A standards allowing use in food, dairy, beverage
and pharmaceutical industries. This unit features superior ±0.25%
accuracy and 5:1 turndown. Calibration is quick and easy with field
accessible zero and span adjustments. All stainless steel construction
resists the corrosive effects of caustic washes used in most food
processing cleaning procedures. 1-1/2" Tri-Clover process connection
is suitable for Clean-in-Place (CIP) applications, eliminating
the need for expensive bypass piping, valving or removal requirements
for steam cleaning. |
| SPECIFICATIONS |
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Service: Liquid, gas or vapor.
Wetted Materials: 316L stainless steel.
Body: 316 stainless steel.
Accuracy: ±0.25% of calibrated span.
Temperature Limits: Process Interface -40 to 212°F (-40 to 100°C).
Pressure Limits: 300% full scale.
Compensated Temperature Range: -20 to 180°F (-25 to 80°C).
Thermal Effect: (includes zero and span) ±1% of upper range limit
per 50°F (30 to 130°F); ±1.6% of upper range limit per 50°F
(10 to 180°F).
Power Requirements: 12-40 VDC with reverse polarity protection.
Output Signal: 4-20 mA DC, max. 30 mA DC (2 wire).
Zero and Span Adjustments: ±10% each.
Response Time: Time constant, 20 ms.
Loop Resistance: 600 ohms @ 24 VDC; max. ohms = (supply voltage - 12)
x 50.
Electrical Connection: 1/2" female NPT.
Process Connection: 1-1/2" Tri-Clover.
Weight: 1.67 lb (752 g).
Agency Approvals: CE, 3A.
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| Popular Models: |
| Model
Number |
Stock
Range - psi (bar) |
Minimum
Range - psi (bar) |
| 637S-0 |
0-15 (0-1) |
0-6 (0-0.4) |
| 637S-1 |
0-30 (0-2) |
0-15 (0-1) |
| 637S-2 |
0-100 (0-7) |
0-20 (0-1.4) |
| 637S-3 |
0-300 (0-20) |
0-60 (0-4) |
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