Quick Start Guide
SERVO
PRO CHROMA/NANOCHROME/ULTRA Gas Analyser
34
04400003A_0
3.1.4 Stand-alone PC with Secondary chassis electrical
connections
Figure 19 shows how to connect an analyser supplied as a stand-alone PC with a
secondary chassis. Connections must be connected to a power source using
properly rated cables. The stand-alone PC must always be connected to the same
protective earth as the secondary chassis of the system.
If an auxiliary oven is supplied, connect the cable coming out of the auxiliary
oven to the connector named
“Auxiliary
O
ven”
on the stand-alone PC. The cable
carries the power supply and the temperature measurement.
The stand-alone PC communicates with the secondary chassis using a RS-232
port
. Connect the port “To analyser” on the PC to the
RS-232 port on the
secondary chassis.
Figure 19 : Stand-alone PC with secondary, electrical connections
Figure 20 shows how to connect an analyser supplied as a stand-alone PC with two
secondary chassis. The stand-alone PC RS-
232 port “To Analyser” connects to the RS
-
232 port on the Secondary Chassis 1. The RS-485 port on Secondary Chassis 1 connects
