Calibrating - Nordson VersaBlue VBN 50 Manual

Calibrating

1
4
2
4
3
4
Fig. 7-13
E 2008 Nordson Corporation
CAUTION: When calibrating, keep hands or conducting tools away from
coaxial connections (10, 11, Fig. 7-12) to prevent distortion of the signal.
Prerequisites:
S
Level sensor is installed, fastened mechanically and connected
electrically (observe color of sensor cable)
S
Tank empty
S
Level sensor is clean
S
Operating voltage is applied (LED Operating voltage (1, Fig. 7-12) lit).
1. Plug jumper Calibration (4) into position 1.
2. With potentiometer 1 (2), find the switching point of the LED Calibration
2
(3) (LED just lights up).
3
Turn clockwise: LED on
Turn counterclockwise: LED off
3. Plug jumper Calibration (4) into position 2.
4. With potentiometer 2 (5), find the switching point of the LED Calibration
3
(3) (LED just lights up).
5
Turn clockwise: LED on
Turn counterclockwise: LED off
5. Plug jumper Calibration (4) into position 3 (center) to switch off the LED
Calibration.
The evaluator is now ready for operation.
NOTE: The LED Reference section (9, Fig. 7-12) lights up as soon as the
reference section (area between the lower inactive section and the sensor
measuring range) is covered with material.
VBN w/o Control System
7-11
Repair
P/N 7146386A