Test 2: With Filling Or Dismounting Of The Sensor - Siemens SITRANS LVL200H Safety Manual

Vibrating switches relay (2 x spdt) with sil qualification
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Conditions
Procedure
Expected result
Proof Test Coverage
12
7.3 Test 2: With filling or dismounting of the
sensor
Alternative 1: the instrument remains mounted; the condition
"Vibrating element uncovered"/"Vibrating element covered" can be
changed by filling or emptying to the switching point.
Alternative 2: the instrument is dismounted; the condition "Vibrat-
ing element uncovered"/"Vibrating element covered" can be
changed by dipping the instrument into the original medium
Output signal corresponds to the level (covered or uncovered
vibrating element)
The NO contacts of the two relays connected in series must
be checked separately!
1. Push the min./max. switch
2. Filling or emptying up to the switching point or immersion into the
original medium
to 1: Output signal changes status
to 2: Output signal corresponds to the modified level
See Safety-related characteristics
SITRANS LVL200H - Safety Manual

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