6.1
0.4 to 2 V Output Signal
A low impedance two-wire voltage
output signal requiring a separate
power supply to the sensor.
This can be derived from a TX9132
Trip Amplifier or TX9042 Programmable
Sensor Controller, when one of those is used
as the monitoring instrument.
This connection configuration works well up to about 10 m
distance between the sensor and the monitoring equipment.
Both the signal and the power supply to the sensor are being
carried in the common 0 V conductor so at some point –
influenced by the length of the cable and the resistance of the
cable cores – the current flowing in the 0 V conductor will impose
an unacceptable voltage error onto the signal.
This effect can be reduced on long distance connections by
increasing the size of the cable cores, or even better, running a
separate 0 V conductor to power the sensor enabling operating
distances up to 1000 m.
1 2 3 4 5
TX6383
+V Supply
0 V
0.4 to 2 V signal
6 7 8
0 V Supply
TX9132
1 2 3 4 5
TX6383
+V Supply
0 V
0.4 to 2 V signal
6 7 8
TX9132
FLAMMABLE GAS SENSOR/TRANSMITTER
A T E X
M1
GROUP I & II
INTRINSICALLY
SAFE
6 CONNECTIONS
TX6383
FLAMMABLE GAS SENSOR/ TRANSMITTER
3 WIRE
4 WIRE
V
2 V
0.4
OUTPUT SIGNAL OPTIONS
1 2 3 4 5
Signal
0 V
Supply
6 7 8
0
V
+
V
1 2 3 4 5
TX6383
+V Supply
0 V
4 to 20 mA signal
6 7 8
TX9131
6.2
4 to 20 mA Output Signal
The sensor may be connected the
3 or 4 wire connection mode.
The power supply for the sensor may
be sourced from the monitoring equipment
(eg. TX9131 Trip Amplifier or a TX9042
Programmable Sensor Controller) or from
a separate power supply.
3 WIRE
4
A
20 mA
1 2 3 4 5
TX6383
+V Supply
0 V
4 to 20 mA signal
6 7 8
0 V Supply
Monitoring
Device
4 WIRE
11/28
INSTALLATION & OPERATING DATA
APPLICATION
GROUP I HAZARDOUS AREAS
APPLICATION
GROUP I HAZARDOUS AREAS
GROUP II HAZARDOUS AREAS
GENERAL PURPOSE
TT X
X 66 33 88 33
ISSUE S 01/15
