Test units and accessories
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11.11 Line tester FDUL221
11.11.1 Function
Different functions can be called up, e.g.,:
● Number of devices found at A and B connection
● Line errors found, location of the line error
● Short-circuit, open line, ground fault with indication of which conductor/s
● Total resistance is too high and/or charge voltage at the line end is too low
● Data transmission fault due to line capacitance being too high
● Browsing from detector to detector with screen displaying type and serial
number
● Display of branches and choice of branch for scrolling
● Activating the internal alarm indicator of the selected detector and recognizing
the connected alarm sounder
● Extended operation and functionality on PC with line tester software FXS2017
● The line tester software FXS2017 is included in the scope of delivery of the line
tester FDUL221.
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