Ambient Monitoring; Electrical Connections; Figure 4 Electrical Connections - Michell Instruments XZR200 User Manual

XZR200 User's Manual
3.1.1

Ambient Monitoring

When used for ambient monitoring or confi ned spaces, there are two holes on the rear
of the electronics case that can be utilized for mounting (see Dimensions in Appendix
A). If placed tight against a wall or surface, a heat shield may be required to protect the
surface from being damaged.
3.2

Electrical Connections

2
1
7
6
3
4
8
5
Housing connector:
Mating connector:
Output pins 3 and 4 are both referenced to the supply GND (pin 7). Due to high
current flow in the supply GND - when monitoring the 0 to 10 V DC output (pin 3) it
is recommended that a separate GND wire for the measurement system is taken from
pin 7. This removes errors due to voltage drops in the power supply connections.
Michell Instruments
3
4
8
5
Connector Body
2
NOTE: The above view of the electrical
connections is shown from the mating side.
1
Here are the connections as viewed
7
from the back of the connector and this
should be used for wiring purposes.
6
Figure 4
99 3481 578 08
713 99 1486 812 08
(mating connector supplied loose with each product)
Pin Number
1
2
3 0 to 10 V DC / RS232 Rx
4
5
6
7
8
Electrical Connections
INSTALLATION
Description
24 V DC ± 10%
NC
4-20mA / RS232 Tx
Cycle
Calibrate
GND (0 V DC)
NC
Housing/Probe Earth
7