VEGA VEGAVIB 67 - two-wire - Manual (Page 25)

key is lowered in the front plate of the signal conditioning
instrument. Push the test key for >2 seconds with a suitable
object (screwdriver, pen, etc.).
If VEGAVIB 67 is connected to a VEGALOG processing
system or a safety SPLC, you have to interrupt the connection
cable to the sensor for >2 seconds.
After releasing the test key or interrupting the connection cable
to the sensor, the complete measuring system can be checked
on correct function. The following operating conditions are
simulated during the test:
l
Fault signal
l
Empty signal
l
Full signal
16
I/mA
8
2
1,5 3 4,5 t/s
1
2
Fig. 14: Flow chart of the function test
1 Full signal
2 Empty signal
Check if all three switching conditions occur in the correct
sequence and the stated time period. If this is not the case,
there is a fault in the measuring system (see also the operating
instructions manual of the signal conditioning instrument).
Keep in mind that connected instruments are activated during
the function test. By doing this, you can check the correct
function of the measuring system.
(after releasing the test key) Test procedure
VEGAVIB 67 - with two-wire output 25
Set up
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-EN
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