Operation
Manual
Raytek
CM
8
5.3 Cable
The color code of the cable and 6 conductors* are shown in the following table.
8
Outer
Jacket
1
Power+
2
Power-**
3
RxD
4
TxD/Alarm
5
TC+/mV+
6
TC-/mV-
J
brown white
red
K
yellow yellow
red
0-
5V
grey
orange
black
blue
violet
yellow brown
* 7: shield
**RS232’s Ground should be connected to Power-
Table 1: Sensor Wiring Color Code
5.4 Wire Connection
Figure 5: connection diagram
5.4.1 Analog output
There are 3 models available: 0-5V, TC J, TC K.
Minimum load impedance for 0-5V output should be 50k
Ω
.
Inner impedance of TC output circuit is 100
Ω
.
5.4.2 Alarm output
RS232 TxD and alarm output share one single wire. Either can be selected by the DataTemp software or RS232
command. When alarm mode is active, the CM can receive command from a PC via RS232, but can’t respond to the
PC. RS232 TxD can work normally after the alarm output is switched off by command K=0, see 10.3 Command Set
on page 22.
If unit is set by DataTemp, alarm output is valid only after the unit is restarted.
1.888.475.5235
