Section 3
ZGARD S & DS Sensors
Installation and Setup
Solid-State (SS) Sensors, Output Test:
Each
ZGARD Sensor provides a means of driving
the output to 50% or 100% full-scale.
Respectively, when the onboard test jumpers
are inserted the sensor generates the selected
output signal. This feature is useful for testing
remote devices, which may be connected to
the sensor output.
Refer to the associated
sensor Installation Outline Drawing for
further details.
Solid-State (SS) Sensors, Cut-Off Feature:
Each ZGARD Sensor provides a cut-off option
to eliminate possible high background
interference of any unsuspected environmental
or other airborne compounds. This function is
jumper selectable. This function is factory set to
enable and is also jumper selectable.
Electrochemical (EC) 4-20mA Output
Sensors, 0% Output Test:
Each ZGARD
Sensor provides a means of driving the output
to 0% full-scale. Respectively, when the
onboard test jumper is inserted the sensor generates the selected output signal. This feature is useful for testing remote
devices, which may be connected to the sensor output.
Refer to the associated sensor Installation Outline Drawing for
further details.
Electrochemical (EC) 4-20mA Output
Sensors, 100% Output Test:
Each ZGARD
Sensor provides a means of driving the output
to 100% full-scale. Respectively, when the
onboard test jumper is inserted the sensor generates the selected output signal. This feature is useful for testing remote
devices, which may be connected to the sensor output.
Refer to the associated sensor Installation Outline Drawing for
further details.
Electrochemical (EC) RS485 Output
Sensors, 0% Output Test:
Each ZGARD
Sensor provides a means of driving the output
to 0% full-scale. Respectively, when the
onboard test jumper is inserted the sensor generates the selected output signal. This feature is useful for testing remote
devices, which may be connected to the sensor output.
Refer to the associated sensor Installation Outline Drawing for
further details.
Electrochemical (EC) RS485 Output
Sensors, 100% Output Test:
Each ZGARD
Sensor provides a means of driving the output
to 100% full-scale. Respectively, when the
onboard test jumper is inserted the sensor generates the selected output signal. This feature is useful for testing remote
devices, which may be connected to the sensor output.
Refer to the associated sensor Installation Outline Drawing for
further details.
3.2
H1
1
TEST FULL SCALE (100% OUTPUT)
2
TEST HALF SCALE (50% OUTPUT)
3
4
CUT-OFF (IN/ OUT)
5
6
7
8
H1
1
TEST FULL SCALE (100% OUTPUT)
2
TEST HALF SCALE (50% OUTPUT)
3
4
CUT-OFF (IN/ OUT)
5
17ppm for Carbon Monoxide Sensors
6
65ppm for Refrigerant Sensors
7
50ppm for Ammonia Sensors
8
H1
1
H1-ZS ZERO SCALE TEST (0% OUTPUT)
2
H1-FS FULL SCALE (100% OUTPUT)
H1
1
H1-ZS ZERO SCALE TEST (0% OUTPUT)
2
H1-FS FULL SCALE (100% OUTPUT)
H1
8
H1-ZS ZERO SCALE TEST (0% OUTPUT)
9
H1-FS FULL SCALE (100% OUTPUT)
H1
8
H1-ZS ZERO SCALE TEST (0% OUTPUT)
9
H1-FS FULL SCALE (100% OUTPUT)
