Product Overview
Brand: Murphy by Enovation Controls
Features:
- DUAL-SCALE 2-INCH PRESSURE GAUGE: Features a 2-inch diaphragm-actuated pressure-indicating gauge with a built-in electrical limit switch designed to trip alarms or shutdown devices across a 0-100 psi (690 kPa / 7.0 bar) dual scale.
- POLYCARBONATE CASE & O-RING SEAL: Enclosed in a rugged, break-resistant polycarbonate case and lens with a polished stainless steel bezel and O-ring seals to protect against harsh external environments.
- UNITIZED DIAPHRAGM & PULSATION DAMPENER: Equipped with a unitized diaphragm chamber for overpressure protection and a removable built-in pulsation dampener to eliminate pointer flutter.
- SPDT SELF-CLEANING SWITCHING: Utilizes a tempered nickel silver pointer that doubles as a switch pole with self-cleaning motion and an SPDT contact rated for 2A @ 30 VAC/DC.
Details: The A20P-100 Pressure Swichgage is a 2" dial, diaphragm-actuated pressure-indicating gage with a built-in electrical limit switch, which is used for tripping alarms and/or shutdown devices. This dual-scale instrument has a range of 0-100 psi (690 kPa) [7.0 bar]. The gage mechanism is enclosed in a polycarbonate, break-resistant case and lens. A polished stainless steel bezel and O-ring seals help protect this rugged instrument from the external environment. Accuracy and protection from moderate overpressure is assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning. Inside the A20P-100, the tempered nickel silver gage pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have a self-cleaning motion to ensure electrical continuity. The A20P-100 Pressure Swichgage was specifically designed to protect engines and equipment in oil field, marine, irrigation, construction and trucking applications by monitoring engine lube pressure, water pump pressure, hydraulic pressure and air pressure. This popular instrument features a beryllium copper diaphragm sensing element and a 1/8-27 NPTM brass process connection. The adjustable limit contact is an SPDT contact; pilot-duty only, 2A @ 30 VAC/DC; closed when the low limit is met, and open when the pointer is in normal operating range.
