Installation - Keller CellaTemp PA 4 Series Quick Start Manual

Quick start guide CellaTemp PA
Electrical connection
The pyrometer is supplied with low voltage 24V DC (18 ... 32V DC).
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.
PIN 1 WH (white)
PIN 2 BN (brown)
PIN 3 GN (green)
PIN 4 YE (yellow)
PIN 5 GY (grey)
PIN 6 PK (pink)
PIN 7 BU (blue)
PIN 8 RD (red)
The pyrometer must be protected against high voltage and strong
electromagnetic fields. Use a shielded cable. The shield must be
connected with the connector housing.
Use a flyback diode when switching inductive loads.

Installation

Install the pyrometer in a location where it will not be unnecessarily ex-
posed to smoke, ambient heat or water vapour.
1. Select a suitable location for the pyrometer. The following criteria
must be observed:
L+ (Power supply 24V DC)
Digital in- / out 1
Analogue output 2/ analogue input
Analogue output 1
Serial interface RS 485 (A) /Tx-/D-)
Serial interface RS 485 (B) /Tx+/D+)
Digital in- / output 2
L- (GND)
EN