IN DASH INSTRUMENTS
Murphy’s direct-reading, mechanical SWICHGAGE® is a gauge and limit switch in one unit. The SWICHGAGE® gives accurate visual indication of engine conditions and includes an integral switch set point which initiates the alarm and/or shutdown. This set point is easily adjustable on the gage face or can be factory set and made tamper-resistant. Internally illuminated for nighttime viewing.
Engine Oil Pressure
0-75 psi (0-517 kPa) range, 1/8 NPT connection. Other ranges, premium pressure line, and adapters available (refer to Accessories and Components on page 5).
Block Coolant Pressure
0-15 psi (103 kPa) set low contact 3 psi (20 kPa), 1/8 NPT connection. Also available in 30 psi (207 kPa).
203T-1-3 00-6 SWICHGAGE®
140-300°F range, 6 ft. (1.8 m) capillary and 1/2 NPT adapter. Specify other ranges, adapters and capillary lengths.
FUEl PRESSURE/Crankcase Pressure
20PWC Series SWICHGAGE®
Monitors natural gas fuel or engine crankcase pressure. Range: 0-10 in. (254 mm.). Available as SWICHGAGE® or indicating-only MURPHYGAGE®.
Block Coolant Temperature
130-220°F, 6 ft. (1.8 m) capillary with 1/2 NPT engine adapter nut. Specify other ranges, adapters and capillary lengths.
Air Filter Restriction
0-30 in. (0-76 cm) VWC, 1/8 NPT connection. Use for monitoring the condition of dry air filter. See Accessories and Components, on page 3, for pressure line.
Oil Filter Restriction
Differential pressure instrument to measure oil, fuel or water filter restriction. Alarm only function or gage only.