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Dwyer Series
638

Pressure Transmitter
Stability, Stainless Steel, Intrinsically Safe, Accuracy ±0.50%, 4-20 mA Signal

SPECIFICATIONS
Service: Liquid, gas or vapor.
Wetted Materials: 17-4 PH stainless steel.
Body: 300 SS.
Accuracy: ±0.50% F.S.
Repeatability: ±0.05% F.S.
Hysteresis: ±0.15% F.S.
Stability: Less than 1% F.S./yr.
Temperature Limits: Operating: -20 to 180°F (-29 to 82°C).
Pressure Limits: 200% for ≤ 2000 psig, 150% for 3000-5000 psig, 120% for 7500-10000 psig.
Compensated Temperature Range: -20 to 160°F (-29 to 71°C), Storage: -65 to 250°F (-54 to 121°C).
Thermal Effects: Zero: 0.028% F.S./°F; Span: 0.028 F.S./°F.
Power Requirements: 10-30 VDC.
Output Signal: 4-20 mA DC, max. 30 mA DC (2-wire).
Zero and Span Adjustments: ±2.8% F.S. each.
Response Time: Less than 10 ms.
Loop Resistance: Vmin = 10 V + (.022A x RL).
Electrical Connection: 36" (92 cm), 24 AWG.
Process Connection: 1/8" male NPT.
Weight: 2 oz (56 g) approximate without cable.
Agency Approvals: FM.

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