MSA PrimaX - Cable Lengths and Cross-Sections

The specified IP protection class does not imply that the unit is capable of measuring under all
environmental conditions, for details see chapter 1.3 .
Refresh Rate of Output Signals (Maximum delay time until special output state is entered)
4 - 20 mA output signal [analog] 100 ms
Alarm [LED and relay] 100 ms
Failure [LED and relay] 100 ms
Display [measuring value] 1 s
Display [alarm] 2100 ms
6.2 Cable Lengths and Cross-sections
The maximum load resistance for all combinations is 300 Ohm.
Sensor type Cross-
section
Max. length at 24 V DC
Toxic Gases and Oxygen Sensors with
4 – 20 mA Signal Output [2- wire Sensor]
1.0 mm
2
1960 m
1.5 mm
2
2940 m
Catalytic Combustible Gas Sensor with
4 – 20mA Signal Output [3- wire Sensor]
without
relay
with relay
1.0 mm
2
980 m 700 m
1.5 mm
2
1470 m 1050 m
Toxic Gases and Oxygen Sensors with
4 – 20mA Signal Output [3- wire Sensor]
without
relay
with relay
1.0 mm
2
3920 m 2000 m
1.5 mm
2
5880 m 3000 m
Catalytic Combustible Gas Sensor with
4 – 20mA Signal Output [4- wire Sensor]
with relay
1.0 mm
2
420 m
1.5 mm
2
630 m
Toxic Gases and Oxygen Sensors with
4 – 20mA Signal Output [4- wire Sensor]
1.0 mm
2
1848 m
1.5 mm
2
2772 m
35 PrimaX GB
6 Technical Data