Chromalock

Standard Speed Monitors (SMA & SMB)

Code: SMA & SMB

TECHNICAL FEATURES

* Designed To Monitor Speeds From 2 To 12000 RPM, In Eight Ranges
* Either Type Can Be Specified In Panel Or Surface Mounting Cases, At No Extra Cost
* SMA.01 For Three Wire Sensors & SPCO Output
* SMB.02 For Two Wire Sensors & DPCO Output
* Wide Ranges Of Compatible Sensors Available

OPERATIONAL FEATURES

Ensure the SMA/SMB unit is the correct range for the speed to be monitored. On application of a continuous supply voltage, the ‘POWER’ LED illuminates, the relay energises after ramp-up delay and the ‘RELAY’ LED illuminates. As long as the speed of the object being measured via the sensor is in excess of the speed selected on the scale of the unit, the relay will remain energised. If however, the measured speed falls below that of the selected speed, the ‘RELAY’ LED will extinguish and the relay will de-energise and remain in this state until the measured speed again exceeds the selected speed. The unit is failsafe and will not operate if the sensor goes open or short circuit.
Chromalock