Kobold KMT-1, Manual, Page: 16 / 36

16
4. ELECTRICAL CONNECTIONS
Before electrical connections are made turn off the power supply first. If not observed the electronics can be
damaged as a result.
Only a qualified electrotechnical engineer may install the device.
•
Unscrew the four screws and remove the cover of the housing.
•
The screw terminals are located in the bottom part of the housing.
•
For the electrical connection of the flowmeter a six-wire cable is needed (e.g. 6 x 1 mm
2
(AWG 17))
4.1. Connection diagram
•
Screw terminal OUT 1 -1 for the analogue output is internally connected with GND.
•
The housing should be grounded to achieve optimal electromagnetic compliance.
4.1.1. Relay and pulse output, internal switching
The relay switch and pulse outputs are both potential free.
Vcc
OUT 1-2
OUT 1-1
OUT 2-1
OUT 2-2
GND
18...30V AC/DC
+15V
mA_Input
+
-
Modbus data A (=D+) / M-Bus
Modbus data B (=D-) / M-Bus
≅
4...20mA
V
mA
p
I
measuring probe
signal output 1
analogue- or switching output
signal output 2
switching- or pulse output
supply
optional
pressure sensor
or
or
OUT x-1
OUT x-2