INVUE CR288 CONCENTRATION MONITOR
7
Installation and Use Manual | Entegris, Inc.
Figure 5. Digital display unit (DDU).
CONNECT CR288 SENSOR(S) TO DDU
—
1. To connect the IP67 end of the cable to the top of
the sensor, align the keyed connectors and twist
the connector hand tight.
2. Connect the HD 15 end of the cable to one of the
four sensor input ports on the bottom of the DDU.
3. Use a screwdriver to secure the HD 15 end to
the DDU.
4. Connect the USB-to-serial cable to the computer.
CONNECT ELECTRICAL WIRING
—
CONNECT POWER TO UNIT
1. Wire 24 volts according to the terminal block.
See Terminal Block Pinout.
2. Optional: If using 4-20 mA outputs, wire according
to the Terminal Block Pinout.
3. Connect terminal block to DDU.
TERMINAL BLOCK PINOUT
1
24 V+ supply
2
Power GND
Sensor 1 concentration
3
Source
4
GND
Sensor 1 temperature
5
Source
6
GND
Sensor 2 concentration
7
Source
8
GND
Sensor 2 temperature
9
Source
10
GND
Sensor 3 concentration
11
Source
12
GND
Sensor 3 temperature
13
Source
14
GND
Sensor 4 concentration
15
Source
16
GND
Sensor 4 temperature
17
Source
18
GND
Digital alarm 1
19
NC
Digital alarm 2
20
NC
Figure 6. Terminal block pinout.
182.9 mm (7.20”)
193.0 mm
(7.60”)
Ports 1–4
Terminal block