VEGA VEGASWING 66 - two-wire - Manual (Page 24)

24
6 Setup
VEGASWING 66 • - two-wire
43758-EN-130322
Sensor Signal con-
ditioning
instrument
Mode on the
signal con-
ditioning
instrument
Level Signal cur-
rent - Sensor
Signal lamp -
green
Voltage sup-
ply
Signal lamp -
yellow
Switching
status
Signal lamp
- red
Fault mes-
sage
Analogue
- input con-
trol 1)
Mode max.
Overflow pro-
tection
approx. 8 mA > 3.8 mA
< 11.5 mA
Mode max.
Overflow pro-
tection
approx. 16 mA > 12.5 mA
< 21.6 mA
Mode min.
Dry run pro-
tection
approx. 8 mA > 3.8 mA
< 11.5 mA
Mode min.
Dry run pro-
tection
approx. 16 mA > 12.5 mA
< 21.6 mA
Failure of the
supply volt-
age
Mode (max./
min.)
any - ≤ 3.6 mA
≥ 21 mA
Fault message
Mode (max./
min.)
any approx.
1.8 mA
≤ 3.6 mA
≥ 21 mA
6.4 Recurring test and function test
There are the following possibilities to carry out the recurring function
test:
1. Filling of the vessel up to the switching point
2. Dismounting of the sensor and immersion in the the original prod-
uct
3. Short interruption of the supply line to the sensor
4. Pushing the test key on the signal conditioning instrument
1 Filling the vessel up to the switching point
If this does not cause any problems, you can fill the vessel up to the
switching point and monitor the correct sensor reaction.
Implementation - Func-
tion test
1) Electronics directly evaluated via the analogue input of a control system
(without signal conditioning instrument)