13
CHAMANUAL 0917
KAM CONTROLS, INC.
To connect the power for the CHA™ sensor, first check both wires from the source for polarity and voltage, then
label appropriately. Shielded twisted pair wire is recommended for both power and signal.
Connect positive wire to 24/12 VDC (+). Fig. 3-13
Connect negative wire to 24/12 VDC (-). Fig. 3-13
WARNING: Connecting a power source to the 4-20 mA ports on the TB will damage the 4-20 mA output and
resulting failure of the unit.
Check voltage and polarity at terminal block.
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KAM CHA
3939 Ann Arbor Drive
Houston, Texas
77063, USA
+1 713 784 0000
www.KAM.com
485 +
485 -
Loop2 In
Loop2 R
TN
Loop1 R
TN
Loop1 IN
GND
Vin ( – )
Vin ( + )
LED3
LED1
LED2
POWER IN
J5
1
2
3
4
J7
ASTM
SA
YBOL
T
PT/CO
HAZE
FIG. 3-14
Serial Port
4-20 mA
Connections
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{
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COMMUNICATION WIRING
Connect the wiring to the desired outputs and/or serial port. Fig. 3-14
For 4-20 mA outputs, LOOP1 will be set to Haze and LOOP2 to specified color range unless otherwise noted. To
change selected ranges see pg. 14 of this manual.
The RS485 serial port can be used for X,Y,Z data or MODBUS (see pg. 17 of this manual).
When wiring is complete ensure that the lid is properly placed back in place and that all bolts are tightened.
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I N S TA L L AT I O N C O N T I N U E D
