The speed sensors are designed to measure diesel engine RPM for use in the automatic electric or automatic electric-to-pneumatic overspeed protection systems. The sensors are usually mounted to detect the diesel engine flywheel RPM. There are three models of spees senors available at GMS Instruments:

• 11408X Magnetic Pickup
• 8017 Hazardous Area Magnetic Pickup
• 4031 Magnetic Pickup

8017:

The 8017 Proximity Transducer is a hermetically sealed miniature electromagnetic transducer, which may be mounted adjacent to rotating machinery, such as an engine starter ring, or a coupling with protruding bolt heads, and produces an electrical signal for use by other equipment. It needs no power supply