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Technical Specifications

PAGE 11

LS4808 / LS4816 | 8 / 16 CHANNEL SPEAKER LINE SURVEILLANCE

Summary Of Features

Note:
The above specifications are correct at time of printing but subjected to changes without prior notice due to product 

improvements.

8 / 16 channel speaker line monitoring and expandable
Basic and Advance level of detection setup
Detection of faulty cable and speaker in individual zone or circuit
Impedance measurement method - no capacitor coupling required and cable branching allowed.
Faulty circuit disconnection option
Built in impedance meter, range within 10 Ohm to 10 K Ohm
LCD display to facilitate system setup, measurement and monitoring
Fault alert with LED indicators and switchable buzzer
Detection test interval setting from 1 min to 48 hours
Short burst test signal, minimizing interruption to PA operation
User setting for detection sensitivity for open, short and leakage
Aux 24V DC output for volume controller overriding during testing mode

LS4808

LS4816

24V DC via PS9400 adaptor

3.8W

10 to 1000W 100V line

1 KHz

5V sine

0.5 second per channel (max)

User preset from 1 min to 48 hrs

Continuous buzzer with Off option 

3A

482 x 44 x 180 mm

 2.20kg

4.9W

5% within range

User preset at each channel

 3.25kg

STM 32 microprocesser

8

10 to 10 K Ohm

Normal, Fault, Buzzer, Auto run

Operating voltage
Power consumption 
Capacity (channel)
Processor
Impedance detection range 
Power measurement range
Measurement accuracy
Pilot tone injection frequency
Pilot tone signal output level
Monitor triggering
Transmittal detection period
Detection interval
Sensitivity setting
Indicators - LED
Display LCD
Audible output signal
Dry contact setting
DC output in detection mode
Dimensions (W x H x D)
Weight

2 x 16 characters w back light

24V DC

16

482 x 88 x 180 mm

Auto / remote trigger

Содержание LS4808

Страница 1: ...pedance measurement method which allows flexibility in speaker cablings such as branching and does not require end line resistors or blocking capacitors at the speakers Its RS485 data output enable re...

Страница 2: ...ly if other than PS9400 is installed 6 24V DC POWER SUPPLY PORT SPEAKER LINE SURVEILLANCE LS 4816 amperes PRE CH 1 CH 2 CH 4 CH 3 CH 5 CH 6 CH 7 CH 8 ZONE SPEAKER CHANNEL CH 9 CH 10 CH 12 CH 11 CH 13...

Страница 3: ...at every zone shall have its own 24V overriding circuit back to the rack If all the overriding circuits are looped and if the particular zone with volume controller is set to off the monitoring activi...

Страница 4: ...does not need end line resistors as well as speaker capacitor couplings It is recommended that periodical manual checking or setup to be made as connections may deteriorate over time and thus affecti...

Страница 5: ...ONE 8 COM 100V ZON 8 COM ZON 7 100V AMP 7 COM 100V COM AMP 8 100V ZONE IN AMP 1 FAULT O P CONTACT AMP 16 EXT TRIGGER RS485 100V LINE ZONE 1 ZONE O Ps LS4816 ZONE 16 SPEAKERS TRIG O Ps VOL O RIDE MAX 3...

Страница 6: ...ton for EXIT 1 SETUP 2 ADVANCE SETUP PREV NEXT CHANNEL 01 OPEN MONITORED CHANNEL 01 OPEN BYPASS Press Next Prev button to switch the Channel CHANNEL 01 OPEN LOW LIMIT 0005 CHANNEL 01 OPEN HIGH LIMIT 0...

Страница 7: ...it ENTER to confirm ENABLE DISABLE buzzer 1 SETUP 1 BASIC SETUP PREV 1 SETUP 5 EXIT 1 SETUP ENTER CHANNEL 01 BP FAULT YES NO 4 CH BP ON FAULT NEXT PREV ENTER to confirm YES NO 1 SETUP 1 BASIC SETUP CH...

Страница 8: ...DISABLED Press Next Prev button to select ENABLED DISABLED If a test interval is selected from 1 min 24 hour By default auto mode is set to off Use NEXT PREV button to select time 3 Auto Test MAIN MEN...

Страница 9: ...LS4816 To show the Model 4 SYSTEM 3 FIRMWARE V1 03 To show the Firmware NEXT 4 SYSTEM 4 EXIT ENTER MAIN MENU 4 SYSTEM Return to MAIN MENU NEXT MAIN MENU 5 SAVE EXIT After completing all setting the c...

Страница 10: ...e value to calculate the total load of the line which they are not capable to measure the Capacitance or Inductance of cable and speaker coils In circuit with branching a break at point would not trig...

Страница 11: ...nimizing interruption to PA operation User setting for detection sensitivity for open short and leakage Aux 24V DC output for volume controller overriding during testing mode LS4808 LS4816 24V DC via...

Страница 12: ...erformed by unauthorized personnel or service centres This warranty covers only repairs and replacement of defective parts cost and risks of transportation as well as removal and installation of the p...

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