Ac And Dc With Relay Output Electronic Insert Fei54 - Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Electrical connection
30
The failsafe mode (MIN) / (MAX) and the point level adjustment are configured on the
Nivotester.
Power supply
• Supply voltage: 14.5 V
DC
• Current consumption: < 15 mA
• Power consumption: maximum 230 mW
• Reverse polarity protection: yes
• Separation voltage: 0.5 kV
Signal on alarm
The voltage at terminal 3 opposite terminal 1: < 2.7 V
Connectable load
• floating relay contacts in the connected switching unit Nivotester FTC325 3-WIRE
• for the contact load capacity, refer to the technical data of the switching device
Do not switch on the supply voltage until you have learned about the device functions
as described in section "Operation option" →  37. This will ensure that you do not
accidentally trigger any processes by switching on the supply voltage.
Connecting the FEI53
11 Negative terminal in Nivotester FTC325
12 Positive terminal in Nivotester FTC325
S Signal terminal in Nivotester FTC325
1. Connect the FEI53 according to the schema.
2. Tighten the cable gland.
3. Set the function switch to position 1.
4. Switch on the supply voltage.
5.3.4

AC and DC with relay output electronic insert FEI54

The universal voltage connection with relay output (DPDT) operates in two different
voltage ranges (AC and DC).
When connecting devices with a high inductance, use a spark suppression system to
protect the relay contacts.
1 2 3
( ) +
11 12 13
– + S
Liquicap M FTI51
A0042389
Endress+Hauser