6
Using the HT101S
Stand-Alone Testing
Stand-Alone testing is used as a method of testing and evaluating or “bench testing” a sensor, independent of the
display.
Use the Tester TEE Harness and adapters if required to match the sensor being tested. Sensors are very sensitive to
correct voltages being applied. Some are 12 volt supply where others are specific at 8 volts or 5 volts. There are sensors
that work with a great variety of supplied voltages.
We’re using the Tester Tee Cable, TT- AE27993 Stand Alone in the following tests.
Shaft Speed Sensors
Set the Function Switch to “Digital
Simulate. Set the Meter Function to
“FREQ”, Frequency. Set the Connected
Point to “Patch “ and install the Patch
Cables from the Meter to the Yellow
and Black Test Jacks. As you slowly turn
the shaft of the sensor you’ll see the Yellow LED Blink as the pulses are
generated. The faster you spin the shaft, the faster the light blinks. You
can read the Frequency of the generated pulses on the meter.
These are best tested using a variable speed drill. Holding the speed constant should provide a steady frequency output.
These sensors may become unstable in frequency with the shaft speed constant. If the sensor is on a machine, just
watch for a steady frequency indication with a constant shaft speed.
Flow Sensors
Flow Meters can be bench using the HT101S set up as done for the Shaft Speed Sensors.
Set the Function Switch to Digital Simulate. Set the Meter Function to
Frequency and the Connected Point to Patch. Install the Patch Cables from the
meter to the Yellow and Black Test Jacks.
Blow through the flowmeter and the turbine will
spin. As the turbine spins pulses are generated.
You’ll see the Yellow LED Blink and the Frequency
can be read on the meter. The Pulse Catcher will
blink indicating pulses are present.
Summary of Contents for HT101S
Page 1: ...1 HT101S Reference Manual...
