Connecting The Electronic Insert Fei53 (3-Wire) - Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Wiring
32
4.5 Connecting the electronic insert FEI53 (3–WIRE)
The 3-wire DC connection is used in conjunction with the Nivotester switching device
FTC325 3–WIRE from Endress+Hauser. The switching device' s communication signal
operates at 3 to 12 V.
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: max. 230 mW
Reverse polarity protection: yes
Separation voltage: 0.5 kV
Signal on alarm
Voltage at terminal 3 vis-à-vis 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.
Connect the FEI53 (3-WIRE) as follows:
1. Make the connection as shown in the
graphic.
2. Turn the cable gland until tight.
!
Note!
Do not switch on the supply voltage until you
have familiarized yourself with the device
functions as described on Seite 38 "Operation".
This will ensure that you do not accidentally
trigger any processes by switching on the supply
voltage.
3. Switch on the supply voltage.
Liquicap M FTI51, FTI52
1 2 3
(+)
11 12 13 Nivotester FTC325 3-WIRE
– + S
Endress+Hauser
TI418F43