Endress+Hauser Nivotester FTL325P - Function Testing of Measuring System

Commissioning Nivotester FTL325P single-channel
20 Endress+Hauser
7.2.4 MIN safety mode with fault signaling
4 5 6
4 5 6
4 5 6
4 5 6
15 16
15 16
15 16
15 16
gn
gn
rd ye
gn rd
gn ye
1
2
0 V
ca. 150 Hz
t
I
t
ca. 50 Hz
t
0 Hz
t
0 Hz
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1 2
ON
MIN
A0039193
 16 Switching behavior and signaling
7.3 Function testing of measuring system
Function testing of measuring system without a change in level
• Function testing of Liquiphant M/S FTL50/51/50H/51H/51C; FTL70/71 with electronic
insert FEL57, see KA00147F
• Proof testing of Liquiphant FTL51B, FTL62, FTL64 with electronic insert FEL67 as per SIL
and WHG (German Water Resources Act)
See the Functional Safety Manual and WHG approval
The certificates, approvals and other documentation currently available can be accessed
as follows:
Endress+Hauser website: www.endress.com → Downloads.
In the event of a power failure, the self-test runs automatically.
Consider the impact on the function of the system. Provide a switching delay if required.