Brooks Instrument XacTorr CMX160 User Manual
Page 26
p.20
3.5 MECHANICAL CONNECTION
1. Vent the vacuum system.
2. At the location of installation, remove the CMX from the shipping container.
Take care to not drop the device or contaminate it with dust or other foreign
matter.
3. Install the CMX in the vacuum system. Take care not to twist or apply
mechanical loading on the CMX housing or tube.
3.6 ELECTRICAL CONNECTIONS
All analog CMX CMs produced by Brooks (with exception to the DeviceNet
models) are designed to be powered by a plus and minus 15 VDC (±5%) power
supply. Temperature-controlled devices require more power than unheated
devices. Refer to Specification Tables beginning on page 10.
3.6.1 Analog Connection
After assuring power has been removed, connect the appropriate 9-pin or 15-pin
connector. If no connector cable is available, use one of the following pin-out
table to construct one.
1. Connect the cable to the gauge.
2. Hand tighten the lock screws to secure the connectors.
Figure 20: CMX45 and CMX100 9-Pin “D” Connector Pinouts
Figure 21: CMX RS-485 Port (2.5mm Jack)
CAUTION
!
!
Combining the chassis
ground, signal common, and
power common will severely
compromise quality of the
pressure signal output.
CAUTION
!
!
Connecting the 9 or 15 pin “D”
connector to the device
should only be done with
power off.
PIN #
PIN ASSIGNMENT
1
Output signal
2
No connection
3
Temperature status
4
+15 VDC
5
-15 VDC
6
Chassis ground
7
Remote ZERO trigger
8
Signal common
9
External power supply
common
CMX
Cable
Connector Option 1
9-Pin D Sub Male
9-Pin D Sub Female
Pinout
Description
Tip
RS_A
Ring 1
RS_B
Sleeve
Ground
3.0
_INSTALLATION