Murphy by Enovation 20T-250-35-1/2: 2" Temperature Swichgage; 130-250¡ F. temp range; 35 ft. capillary length and a 1/2-14 NPT adapter nut.
The gage mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. This vapor actuated gage Features a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against the diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gage reading. The gage pointer acts as a temperature indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contact(s) are grounded through the Swichgage case. This gage has a self-cleaning motion to enhance electrical continuity.
Specifications:
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Dial: White on black; U.S.A. standard scale is dual scale ¡F/¡C; others available (see How to Order)
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Case: Plated steel; mounting clamp included (except direct mount models)
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Bezel: Polished stainless steel, standard; others available (see How to Order)
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Pointer: Tempered nickel silver
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Lens: Polycarbonate, high-impact
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Sensing Element: Beryllium copper diaphragm
- Capillary: PVC armoured copper; 4 ft. (1.2 m). Stainless steel armor optional
- Sensing Bulb: Copper*
- Maximum Ambient Temperature: -40¡F (-40¡C) through 150¡F (66¡C)
- Adjustable Limit Contact: SPST contact; pilot duty only, 2 A @ 30 VAC/ VDC; Ground path through encasement. Normally Closed (NC) when the high limit is met. Normally Open (NO) when pointer is in normal operating range. Contacts are gold flashed silver.
- Limit Contact Adjustment: By a 1/16 in. hex wrench through 100% of the scale
- Limit Contact Wire Leads: 18 AWG (1.0 mm) 2 x 12 in. (305 mm)
- Snap-Switch Wire Leads: 20 AWG (0.75 mm2) x 12 in. (305 mm)
- Unit Weight: 20 Series: 12.7 oz. (0.39 kg);
- Unit Dimensions: 4-3/4 x 4-3/4 x 2-3/4 in. (121 x 121 x 70 mm)
