VEGA VEGAVIB 62 - two-wire - Manual (Page 24)

Sensor
current -
Sensor Level relay
A - overfill
protection Signal
lamp A -
Overfill
protection Level relay
B - dry run
protection Signal
lamp B -
Dry run
protection Fail safe
relay Control
lamp
1. Fault sig-
nal
approx. 0.6 s
+
t
A
2)
< 2 mA currentless currentless currentless
2. Empty
signal
(approx.
1.5 s) approx.
8 mA energized currentless energized
3. Full signal
(approx.
1.5 s) approx.
16 mA currentless energized energized
4. Return to
current ope-
rating condi-
tion
Note:
When used in measuring chains according to IEC 61508, mode B is
not permitted.
Test passed
l Interference signal (< 3.6 mA) ≥ 400 ms
l Uncovered (approx. 8 mA) ≥ 1 s
l Covered (approx. 16 mA) ≥ 1 s
Test not passed
l Interference signal (< 3.6 mA) < 400 ms / ≥ 750 ms
l Uncovered (approx. 8 mA) < 1 s / ≥ 2 s
l Covered (approx. 16 mA) < 1 s / ≥ 2 s
2) Starting time of the voltage supply
Test assessment (SPLC)
24 VEGAVIB 62 • - two-wire
6 Set up
29274
-EN
-120418