The Sensor Tester (ST) is a device designed to test White Drive Products speed sensors (Hall-Effect type). In addition, the ST will test the user’s pulse detection system, and most competitive proximity and optical sensors.

The ST may be used as a stand-alone tester to verify sensors are operating correctly. This capability is the result of an internal battery and a built in magnetic label that is polarized with alternating north and south magnetic poles, similar to our current rotary magnet.

To test the sensor, connect it to the 12” output cable, select the “Sensor” function and swipe the sensor along the label/magnetic strip. If the sensor is operating correctly the user will receive a visual signal from a flashing LED and an audible beeping signal.

The ST can also be used as a stand-alone tester to check the operation of pulse detection systems. The end user’s system output cable can be disconnected from the speed sensor and connected to the input connector on the ST. When connected to the pulse detection system and selecting the “System” function, the ST will output a constant speed pulse, simulating an operational sensor. The tester will have the same outputs as listed above. The user can then check the system to see if it is displaying a reading (simulated speed/pulses will depend on system voltage so system pulse counts will vary from system to system).

The ST has output LEDs that display the selected function and operation. It also features an output LED that indicates if the system cable is supplying power to the tester. When power is supplied to the ST in this manner, power operates the ST and avoids draining the internal battery. When using system power, the ST has a trickle charge feature that extends battery life. Expected battery life is one hour.