LINEGUARD-8 PA Line Current Monitoring Unit
For up to 8 speaker circuits.
Monitoring of disconnection, short circuit and short to earth of the individual speaker circuits acc. to EN60849
Timer-controlled start of measurements, manually or via external contact
LED indicators for type of malfunction and line status
Relay outputs for bridging power switches
Relay outputs for malfunction, power failure, and present measurement
RS-232 output to read out error messages
Automatic disconnetion of short-circuited lines
Mains operation or 24V emergency power operation
Measuring range - 25-1,600ohms (256 steps) / 6-400W (100V)
Fault analysis - short-circuit, short to earth, line break
Measuring time - 100 msec./line
Measuring frequency - 16kHz
Measuring interval - 1/5/10/30 min./1/3/12/24h
Display - 7-segment display (LED)
Signal inputs - 8
Signal outputs - 8
Rating 100V relay - 160V~/1,250VA
Rating emergency priority relay - 48V DC current /1A
Admiss. ambient temp. - -5 °C to +50 °C
Power supply - 230V~/50Hz/20VA, emergency power 24 DC current
Dimensions - 483x44x240mm, 1RS
Weight - 3.2kg
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