Bimetal Temperature Sensor Test

Bi-Metal Sensor Test:

1. Attach a vacuum gauge to the outlet nipple of the sensor.
2. Connect a vacuum pump to the inlet nipple of the sensor.
The sensor may be cooled by submersing in cold water, and warmed by placing in oven or water with a thermometer.

3. The color coded sensor must have specified vacuum output at both temperatures according to the chart below.

Color Temp. Vacuum Bleed Vacuum
Code Setting Output* Setting Output*

Brown 75~F 1-5" 40~F 11"
Purple, Black 90~F 1-5" 55~F 11"
Green, Yellow 105~F 1-5" 70~F 11"
Pink 90~F 4-9" 65~F 11"
Blue 105~F 4-9" 80~F 11"


* Vacuum output is with 16" vacuum at source.