VEGA VEGAWAVE 61 - NAMUR - Manual (Page 23)

Sensor cur-
rent Level relay
amplifier -
overflow
protection Level relay
amplifier -
dry run pro-
tection Signal lamp
amplifier -
overflow
protection Signal lamp
amplifier -
dry run pro-
tection Signal lamp
- sensor
1. Low Current
(approx. 3 s)
approx. 1 mA energized currentless
2. High Current
(approx. 1.5 s) approx.
2.2 mA currentless energized
3. Return to the actual
operating condition
Note:
When used in measuring chains according to IEC 61508, mode B (dry
run protection) is not permitted.
You can carry out the function test with the stated current values also
directly with a safety PLC or a process control system.
Test passed
l Low Current ≥ 2 s
l High Current ≥ 1 s
Test not passed
l Low Current < 2 s / > 4 s
l High Current < 1 s / > 2 s
Test assessment (SPLC)
VEGAWAVE 61 • - NAMUR 23
6 Set up
32249
-
EN
-120418