Keller 1110968, Руководство по эксплуатации, Страница: 11 / 30

11
EN
Operating instructions CellaTemp PR xx
6 Electrical connection
ATTENTION
The pyrometer may only be installed by a skilled, qualified electrician� Do not
connect the instrument while the voltage supply source is turned on� Please
observe international safety regulations at all times�
► Switch to neutral and verify absence of voltage
► Connect the instrument according to the following schematic:
1
4
2
3
L+
L-
0/4 - 20 mA
shielded
24 V DC
C/Q
1 2
3 4
Pin 1 BN (brown) L+ (Power supply 24V)
Pin 2 WH (white) Analogue output; 0/4 ��� 20mA
Pin 4 BK (black)
Open Collector switching output; I
max
= 150 mA
or IO-Link
Pin 3 BU (blue) L- (Shield)
The pyrometer must be protected against high voltage and strong electro-
magnetic fields� Use a shielded cable, connecting it via connector casing
to the device housing�
Use a flyback diode when switching inductive loads�