Levitronix LEVIFLOW LFIF Series - Electrical Installation Instructions and Warnings

User Manual for LEVIFLOW
®
LFIF-06 Flowmeters
www.levitronix.com
PL-4511-00, RevA, DCO# RD
8
Figure 5: Typical interface connection chart with LFE-E.1 (current output) and LFE-E.3 (voltage output)
Figure 6: Typical interface connection chart with LFE-E.2 (flow switch applications)
3.1.2 Instructions for Electrical Installation
!
WARNING
Hazardous voltage may be present.
Always isolate the electrical power supply before making or changing
connections to the unit.
!
WARNING
Flammable gases.
Do not place the integrated flowmeter next to flammable gases.
LFIF-06
Example of User
Interface Circuit
GND
Blue: Digital Output
Green: Analog Output
Orange: RS485+
Yellow: RS485-
GND
4-20mA /
0-20mA
RS485/USB Cable
with Termination
Personal
Computer
(Service)
24V
R < 500 Ohm
Max. 30V / 10mA
Open
Collector
R > 3 kOhm
Relais
Cable Wires
Colors/Designation
LFE-E.1
R = 510 Ohm
Tool
Control
R = 510 Ohm
AC/DC Supply
24 VDC
Red: 24 VDC
Brown: Ground
R = 120 Ohm
+5V
LFIF-06
Example of User
Interface Circuit
GND
Blue: Digital Output
Green: Analog Output
Orange: RS485+
Yellow: RS485-
GND
0-20mA
RS485/USB Cable
with Termination
Personal
Computer
(Service)
24V
R > 100 kOhm
Max. 30V / 10mA
Open
Collector
R > 3 kOhm
Relais
Cable Wires
Colors/Designation
LFE-E.3
R = 510 Ohm
Tool
Control
R = 510 Ohm
AC/DC Supply
24 VDC
Red: 24 VDC
Brown: Ground
R = 120 Ohm
+5V
Current-voltage resistor
20mA to 10V conversion
500Ohm/0.5W integrated
in cable LFE-E.3.
0-10V
LFIF-06
Example of User Interface Circuit
GND
Blue: Digital Output
Green: Analog Output
Orange: RS485+
Yellow: RS485-
GND
4-20mA /
0-20mA
RS485/USB Cable
with Termination
Personal
Computer
(Service)
24V
Max. 30V / 10mA
Open
Collector
R > 8.3 kOhm
Safety
Switch
Relais
Cable Wires
Colors/Designation
LFE-E.2
R = 510 Ohm
Tool
Control
R = 510 Ohm
AC/DC Supply
24 VDC
Red: 24 VDC
Brown: Ground
R = 120 Ohm
+5V
Pull-Up resistance
4.7 kOhm is integrated in
cable LFE-E.2.