Bi-Directional, Dual Channel, Magnetic Hall Effect Speed Sensors - 5/8 and 3/4 Threads
BH Series

aitek instrument bidirectional speed sensors

AI-Tek Bi-directional, zero velocity sensors are self-calibrating to the specific customer application and provide two independent frequency outputs and a direction signal output to indicate change in direction of the sensed, ferrous target.

The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two hall effect sensing elements, physically offset from each other. Each element generates a single channel of target information, identical in frequency and polarity, but offset in the time domain (phase shifted). Special circuits inside the sensor are designed to calibrate each channel to its application target, then analyze these two channels of information for a phase lead / lag condition. The direction output will then provide a logic 1 level for clockwise or a logic 0 for counterclockwise rotation, assuming proper sensor orientation.

Part Number Thread Size (in) Supply Tracking
or TTL
Termination Thread Length (in) Sensor Length (in)
BH1512-0015/8-18TTLConnector1.53.375
BH1512-0025/8-18TTLConnector2.754.625
BH1512-0055/8-18TTLConnector1.53.375
BH1512-0065/8-18TTLConnector2.754.625
BH1512-0095/8-18TTLCable44
BH1512-0105/8-18TTLCable66
BH1512-0135/8-18TTLCable1.53.375
BH1512-0145/8-18TTLCable2.754.625
BH1522-0015/8-18STConnector1.53.375
BH1522-0025/8-18STConnector2.754.625
BH1522-0055/8-18STConnector1.53.375
BH1522-0065/8-18STConnector2.754.625
BH1522-0095/8-18STCable44
BH1522-0105/8-18STCable66
BH1522-0135/8-18STCable1.53.375
BH1522-0145/8-18STCable2.754.625
BH1612-0013/4-20TTLConnector1.53.375
BH1612-0023/4-20TTLConnector2.754.625
BH1612-0053/4-20TTLConnector1.53.375
BH1612-0063/4-20TTLConnector2.754.625
BH1612-0093/4-20TTLCable44
BH1612-0103/4-20TTLCable66
BH1612-0133/4-20TTLCable1.53.375
BH1612-0143/4-20TTLCable2.754.625
BH1622-0013/4-20STConnector1.53.375
BH1622-0023/4-20STConnector2.754.625
BH1622-0053/4-20STConnector1.53.375
BH1622-0063/4-20STConnector2.754.625
BH1622-0093/4-20STCable44
BH1622-0103/4-20STCable66
BH1622-0133/4-20STCable1.53.375
BH1622-0143/4-20STCable2.754.625