Manual

9
9.1 95-8616
+
–
24 VDC
A2502
NOTE 1 GROUND THE SHIELD AT THE POWER SOURCE
END ONLY.
NOTE 2 250 OHM RESISTOR REQUIRED FOR HART
MENU ACCESS.
NOTE 3 EXTERNAL HART COMMUNICATION DEVICES
CAN BE CONNECTED ACROSS THE 250 OHM
RESISTOR OR ACROSS THE GT3000.
NOTE 4 JUNCTION BOX MUST BE ELECTRICALLY
CONNECTED TO EARTH GROUND.
BLACK
RED
SEE NOTES 2 & 3
SEE NOTE 1
GT3000
GAS DETECTOR
SENSOR TERMINATION BOX
RED
RED
BLACK
BLACK
GREEN
Figure 7—GT3000 Wired to Sensor Termination Box in Stand-Alone Conguration (Explosion-Proof)
+
–
24 VDC
A2530
NOTE 1 GROUND THE SHIELD AT THE POWER SOURCE
END ONLY.
NOTE 2 250 OHM RESISTOR REQUIRED FOR HART
MENU ACCESS.
NOTE 3 EXTERNAL HART COMMUNICATION DEVICES
CAN BE CONNECTED ACROSS THE 250 OHM
RESISTOR OR ACROSS THE GT3000.
NOTE 4 JUNCTION BOX MUST BE ELECTRICALLY
CONNECTED TO EARTH GROUND.
BLACK
RED
SEE NOTES 2 & 3
SEE NOTE 1
GT3000
GAS DETECTOR
SENSOR TERMINATION BOX
RED
RED
BLACK
BLACK
GREEN
HAZARDOUS LOCATION NON-HAZARDOUS LOCATION
INTRINSIC
SAFETY
BARRIER
Figure 8— GT3000 Wired to Sensor Termination Box in Stand-Alone Conguration (Intrinsically Safe)