Appendix: Electrical Installation
MSA
ULTIMA X ® Series
GB
79
9.14 Cable Lengths and Cross-section - Gas Monitors
Toxic Gases and Oxygen Sensors with 4-20 mA Signal Output
[2- wire Sensor]
Catalytic Combustible Gas Sensor with 4-20 mA Signal Output
[3- wire Sensor]
Toxic Gases and Oxygen Sensors with 4-20 mA Signal Output
[3- wire Sensor]
Catalytic Combustible Gas Sensor with 4-20 mA Signal Output
[3- wire Sensor]
Cross-section
Max. length at 24 V DC
Max. load resistance
1.0 mm
2
2134 m
500 Ohm
Power supply
24 V DC
Configuration
without relay
with relay
Cross-section 1.0 mm
2
762 m
640 m
Cross-section 1.5 mm
2
1280 m
914 m
Max. load resistance at signal output
500 Ohm
Cross-section
Max. length at 24 V DC
Max. load resistance
1.0 mm
2
3658 m
500 Ohm
Power supply
24 V DC
Configuration
without relay
with relay
Cross-section 1.0 mm
2
610 m
457 m
Cross-section 1.5 mm
2
1067 m
762 m
Max. load resistance at signal output
500 Ohm
