Speaker Line Monitoring
LS4808 / LS4816
8/ 16 Channel Speaker Line Surveillance


Highlights
Impedance measurement method ; thus without the needs for end of line resistors
Basic and advance detection mode for more precise monitoring
RS485 and dry contact for external monitoring
LS4808 and LS4816 are all new speaker line monitoring unit, replacing the long running LS4600. Now available in 2 versions ; 8 and 16 channels types.
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With their new processor and measurement algorithm, they are now able to perform tasks faster with better accuracy. Additional features included were trigger monitoring, which can be linked to timer for preset times activation.
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Similar to its previous model, they provide reliable speaker circuit monitoring for ground leakage, short and open circuit using impedance measurement method, thus eliminating the use of blocking capacitors and end line resistors.
Features
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8 / 16 channel versions
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Basic and advance level setting
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Sensitivity setting
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Impedance measurement method ; end line resistors, block capacitors not required
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Faulty circuit disconnection option
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Built in impedance meter ; 10 to 10K Ohm
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Fault alert bicolour LED with buzzer
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Interval detection from 1m to 48 hrs
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Remote detection activation
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Short burst signal for lesser interruption
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Aux contact for 24V overriding during activation period
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RS485 for remote monitoring
Technical Specifications
Documents
LS 4808 / 4816
Power requirement : Voltage
Consumption
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Processor
Capacity
Detection range
Load measurement
Accuracy
Pilot tone injection
Tone level
Detection period
Triggering
Detection interval
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Sensitivity
Indicators
LCD display
Audible alert
Dry contact
DC output
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Dimensions (mm) :
Weight :
24V DC
3.8 / 4.9 W
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32 bit ARM processor
8 / 16 channel
10 to 10K Ohm
10W to 1000W 100V Line
+/- 3%
1 KHz
5V sine
0.5 sec
Auto / manual
Preset 1m to 48 hrs
User preset
Normal, Buzzer, Auto
2 x 16 charactors
Buzzer with off option
3A
24V DC overriding
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LS4808 : 482 X 44 X 180
LS4816 : 482 x 88 x 180
2.4 / 3.1 kg
Catalogue
Instruction Manual
ACAD Image
Note :
Firmware Ver 1.1 ( Oct 19 ) Available