Setup
3A1299K
17
Setup
Calibrate Barrel Style Level
Sensors
NOTE: Calibration is not required for ultrasonic
style level sensors or high temperature level sen-
sors.
1. Locate the calibration button on the sensor (11)
closest to the electrical connector through one of the
four holes of the sensor well housing (CA).
2. If the calibration button cannot be seen through one
of the four holes in the sensor well, rotate the sen-
sor.
a. Loosen the sensor well nut (CC).
b. Rotate sensor until the calibration button can be
seen through one of the four holes in the sensor
well housing.
c. Tighten sensor well nut.
d. Press and hold the button down with the ball
end of an allen wrench for two seconds. The
light will flash slowly and then go out.
3. Test for proper sensor function.
a. Loosen the sensor well nut.
b. Back the sensor out of the well. The sensor
should sense the tank wall.
Vacuum De-gas
1. Shut down the HFR or VRM system. Refer to the
HFR or VRM Setup-Operation manual for instruc-
tions.
2. Close the shut-off ball valves at the base of the
tanks.
3. If the tank lid has a fill port, turn off any systems that
might refill the tank during the vacuum de-gas pro-
cedure.
4. Close the fill port ball valve.
5. If the tank lid requires a desiccant dryer, install it into
the top ball valve of the vacuum tree manifold.
6. Close the top ball valve of the vacuum tree mani-
fold.
7. Attach vacuum pump to the bottom ball valve of the
vacuum tree manifold. Open the ball valve.
8. Turn on the vacuum pump.
9. Continue to de-gas the material.
10. Close bottom ball valve of the vacuum tree mani-
fold.
11. Turn off the vacuum pump.
12. Open the top ball valve of the vacuum tree manifold.
13. Open the shutoff valves at the base of the tanks.
NOTE: Tank stands are configured for the A (Red)
side. Adjust rotary switch setting if tank is being
used on B (Blue) side.
NOTICE
Operating the tank after the vacuum de-gas proce-
dure without the top ball valve open will result in
pump cavitation, off-ratio conditions, and possible
collapse of the tank.