The Series 636 Pressure Transmitter is a low cost, fixed range, stainless steel transmitter with ±0.30% accuracy. It is designed to continuously measure pressure for years in even the toughest environmental and media conditions. Select from 4 ranges to 0-300 psig (0-20 bar) with choice of 4-20 mA output (Model 636) or 1-5 VDC output (Model 636LP). Transmitters are explosion-proof, (FM approved) and meet NACE standards for off-shore applications.
Service: Liquid, gas or vapor.
Wetted Materials: 316L SS.
Fill Fluid: DC 200 Silicone (standard).
Accuracy: ±0.30% of calibrated span.
Stability: ±0.5% of upper range limit for six months.
Temperature Limits: Electronics (ambient): -40 to 140°F (-40 to 60°C); Process interface: -40 to 212°F (-40 to 100°C).
Pressure Limits: 300% upper range limit.
Compensated Temperature Range: -20 to 180°F (-29 to 82°C).
Thermal Effect (includes zero and span): Between -20 and 180°F (-29 and 82°C). ±2.0% per 50°F (28°C).
Power Requirements: 12 to 30 VDC (636), 8 to 14 VDC (636LP), reverse polarity protection.
Output Signal: 4 to 20 mA DC, limited to 30 mA DC (636), 1-5 VDC (636LP).
Zero and Span Adjustments: Null: 4.0 mA ±2% span (636), 1 VDC ±1% span (636LP); Span: 16.0 mA ±1% span (636), 4 VDC ±1% span (636LP).
Loop Resistance: 900 ohms max. @ 30 V.
Electrical Connection: 3/4" female NPT 24" (61 cm), 22 AWG.
Process Connection: 1/2" female NPT.
Enclosure Rating: NEMA 4 (IP65).
Weight: 0.83 lb (374 g).
Agency Approvals: CSA, FM. FM and CSA approved explosion-proof for Class I, Division 1, Groups B, C, & D, Class II, Groups E, F, & G, Class III.
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