11
12.2
95-8616
Figure 11—GT3000 Wired Directly to the UD10 Display Unit / UD10 Wired to PLC with 4-20 mA Non-Isolated Sourcing Output
GT3000
GAS DETECTOR
BLACK
RED
GREEN
SEE NOTE 1
NOTE 1
CONNECT THE GREEN DETECTOR LEAD
TO THE CHASSIS GROUND LUG ON THE
INSIDE BOTTOM OF THE DISPLAY UNIT
ENCLOSURE.
NOTE 2
JUNCTION BOXES MUST BE ELECTRICALLY
CONNECTED TO EARTH GROUND.
C2453
NON-HAZARDOUS LOCATION
HAZARDOUS LOCATION
Sensor Connector
Power Supply Connector
Output Loop
Connector
MODBUS
Connector
R
ela
y Connect
or
P1
J2
J3
J4
P2
4-20 mA +
4-20 mA –
SHIELD
COM
RS485 A
RS485 B
HIGH ALARM COM
HIGH ALARM NC
HIGH ALARM NO
AUX ALARM COM
AUX ALARM NC
AUX ALARM NO
LOW ALARM COM
LOW ALARM NC
LOW ALARM NO
FAULT COM
FAULT NC
FAULT NO
24 VDC
–
24 VDC
+
SHIELD
24 VDC
–
24 VDC
+
SHIELD
SHIELD
C
ALIBR
A
TE
24 VDC
–
4-20 mA
24 VDC
+
P1-3
P1-2
P1-1
J2-3
J2-2
J2-1
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6
J4-7
J4-8
J4-9
J4-10
J4-11
J4-12
J3-1
J3-2
J3-3
J3-4
J3-5
P2-6
P2-5
P2-4
P2-3
P2-2
P2-1
UD10
DISPLAY UNIT
24 VDC
INPUT
4-20 mA
PLC 4-20 mA INPUT CARD
–
+
250
OHMS
MINIMUM
Notes: Resistor may be external if voltage input card is used.
Sinking resistance at PLC must be 250 ohms minimum
for HART communication.
P12
Figure 12—GT3000 Wired Directly to the UD10 Display Unit / UD10 Wired to PLC with 4-20 mA Isolated Sourcing Output
GT3000
GAS DETECTOR
BLACK
RED
GREEN
SEE NOTE 1
NOTE 1
CONNECT THE GREEN DETECTOR
LEAD TO THE CHASSIS GROUND
LUG ON THE INSIDE BOTTOM OF
THE DISPLAY UNIT ENCLOSURE.
NOTE 2
JUNCTION BOXES MUST BE
ELECTRICALLY CONNECTED
TO EARTH GROUND.
C2479
NON-HAZARDOUS LOCATION
HAZARDOUS LOCATION
Sensor Connector
Power Supply Connector
Output Loop
Connector
MODBUS
Connector
R
ela
y Connect
or
P1
J2
J3
J4
P2
4-20 mA +
4-20 mA –
SHIELD
COM
RS485 A
RS485 B
HIGH ALARM COM
HIGH ALARM NC
HIGH ALARM NO
AUX ALARM COM
AUX ALARM NC
AUX ALARM NO
LOW ALARM COM
LOW ALARM NC
LOW ALARM NO
FAULT COM
FAULT NC
FAULT NO
24 VDC
–
24 VDC
+
SHIELD
24 VDC
–
24 VDC
+
SHIELD
SHIELD
C
ALIBR
A
TE
24 VDC
–
4-20 mA
24 VDC
+
P1-3
P1-2
P1-1
J2-3
J2-2
J2-1
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6
J4-7
J4-8
J4-9
J4-10
J4-11
J4-12
J3-1
J3-2
J3-3
J3-4
J3-5
P2-6
P2-5
P2-4
P2-3
P2-2
P2-1
UD10
DISPLAY UNIT
24 VDC
24 VDC
INPUT
4-20 mA
PLC 4-20 mA INPUT CARD
–
–
+
+
250
OHMS
MINIMUM
Notes: Resistor may be external if voltage input card is used.
Sinking resistance at PLC must be 250 ohms minimum
for HART communication.
P12