Data sheet, 4lsl – Procom 4LSL User Manual

Page 6

Data Sheet

4LSL

Loudspeaker Function Card

Commissioning Functions

The 4LSL measuring module includes additional commissioning and servicing
aids to better control the measurement equipment or the loudspeaker circuits.

These are:

- Switchable drive display (VU meter) to check precisely all signals to be meas-

ured

- Display of the most important functions on the front plate
- Automatic or manual calibration of loudspeaker circuits
- Diverse group and individual messages
- PC-based configuration
- Measurement data transmission to the DVS-21 central system
- Simulation of all processes which the module has

Summary of the Functions

- Precision measuring for impedance error detection: 1-100% in 1% steps

(% of installed loudspeaker load)

- Number

independent

loudspeaker circuits or measurement channels:

- Measurement channels can be individually switched on/off
- Loudspeaker

minimum/maximum

load

per channel: 2.5 Watt / 150 Watt

- Loudspeaker load check during commissioning
- Manually or automatically configurable impedance deviation limits
- Verification of impedance deviation through automatic multiple subsequent

measurements

- Automatic or manual measuring procedure
- Checking of the test signal generator before each measurement
- Wire breakage or short circuit detection
- Allocation of an occurring earth leakage to a loudspeaker circuit (earth leak-

age detection through TG01)

- Transfer of all measurement data to the DVS-21 central system
- Display of all statuses by LEDs on the front plate
- Loudspeaker circuit relays: 4 (1/channel)
- Generation of positive and negative public address acknowledgements
- Programmable night-reduction function for public address acknowledgement
- Configurable amplifier protection function for loudspeaker circuit short circuit
- Making possible public address in the case of a short circuit (group public

address)

- Diverse group and individual messages
- Full control over all procedures through the DVS-21 central system
- PC-based

configuration

- Commissioning and service aids on-board

Further details can be found in the commissioning instructions.

Date:

13.03.2009 Page:

6/7 Author:

Document-No.:

DB_4LSL_2830_01