D-Guard² Instruction Manual
Item Number 201018
51
Parameter
Description
Limits
Measurement technique Electro chemical cell, infra-red
Target gas
Full scale range
Maximum loop current
Under any condition
25 mA
Minimum supply voltage General, Relay and Siren versions
13 V
Maximum loop resistance At a supply voltage of 22 V
380 Ω
Maximum supply voltage General, Relay and Siren versions
28 V
Loop error signal
Isolated or fault
3.5 mA
Loop error signal
Over range
21 mA
Display
Graphical display 400x240 pixels
24.3 General Specifications
Figure 29. D-Guard² General Specifications.
24.4 Wiring Requirements
Make sure the cable is suitable for the application. The outside diameter of the cable
sheath must be between 10 mm and 14 mm.
Figure 30. D-Guard² electrical connections.