Nordson VersaBlue VA, Руководство пользователя

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Fig. 7‐35
Repair
7‐23
P/N 213828_11
2014 Nordson Corporation
VersaBlue_PPA
Replacing Level Evaluator (Option) of Analog Sensor
Important Notes
The evaluator is located in the electrical cabinet door. The active measuring
range is indicated by two lines on the level sensor.
The length of the sensor cable may not be changed.
Adjustment by electrostatically charged persons can cause the amplifier
to malfunction.
All adjustments should be made with operating ground (no ground
conductor function) connected. The operating ground must be linked to
the metal casing of the melter along the shortest path. Do not connect via
ground conductor!
All potentiometers have 20 revolutions and no mechanical limit stop,
meaning no fixed end position. They can not be damaged by turning too
far.
1
9 8 6 7
12
13
10
11
1
3
2
3
4
2
5
14
Fig. 7‐36
1 LED Operating voltage (green)
2 Potentiometer 1
3 LED Calibration
4 Jumper Calibration
5 Potentiometer 2
6 LED Tank overfilled (yellow)
7 LED Level (green)
8 LED Tank empty (yellow)
9 LED Reference section (green)
10 Coaxial connection Sensor
(black)
11 Coaxial connection Sensor
(white)
12 Connection Operating ground
13 Signal output
14 Voltage supply (24V)