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Transmissor para Pressão com Faixa Ajustável Série 637S
Transmissor para Pressão com Faixa Ajustável Série 637S

Sanitary Pressure Transmitter
Meets NACE and 3A Sanitary Standards; Accuracy ±0.25%

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 ½" 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.

Service: Liquid, as or vapor
Output: 4-20 mA DC, max. 30 mA DC (2-wire)
Power Supply: 12-40 VDC with reverse polarity protection
Loop Resistance: 600 ohms @ 24 VDC; max. ohms = (supply voltage - 12) x 50
Turndown: 5:1
Zero and Span Adjustment: ±10% each
Temperature Limits: process interface -40 to 212° F (-40 to 100° C)
Accuracy: ± 0.25% of calibrated span
Response Time: time constant, 20 ms
Stability: ± 0.5% of upper range limit for six months
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).
Wetted Parts: 316L stainless steel
Electrical Connection: ½" NPT(F)
Process Connection: 1 ½" Tri-Clover
Body: 316 Stainless Steel
Weight: 1.67 lbs. (752 grams)


Stock Range,
PSI (Bar)
Minimum Range,
PSI (Bar)
0-15 (0-1)
0-30 (0-2)
0-100 (0-7)
0-300 (0-20)
0-6 (0-0.4)
0-15 (0-1)
0-20 (0-1.4)
0-60 (0-4)

Suggested Specifications:
Sanitary Pressure transmitter shall be 316 SS construction with 5:1 turndown and ±0.2455 F.S. accuracy. Unit shall meet NACE and 3A sanitary standards. Transmitter shall have 1 ½' Tri-Clover processes connection and is suitable for Clean-in-Place (CIP) applications. Unit shall have field accessible zero and span adjustments. Transmitter shall be Dwyer Model No. 637S___.

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