Made In Malaysia
AUG 2008 V2.0
By AMPERES ELECTRONICS
INSTRUCTION
MANUAL
LS
4600
Precision Design, Absolute Confidence
SPEAKER LINE SURVEILLANCE
www.ampereselectronics.com
improved with additonal features
LS4600 was produced out of extensive research and development effort in which every aspect of line surveillance requirements are studied. It solves the problem faced
by many installers using the conventional line monitoring method, by adopting impedance measurement methodology. This shall eliminate the needs to add coupling
capacitors to every speakers, rigid cabling rules as well as inaccuracy in detection. Thereby, LS4600 allows branching in cabling works, direct tapping of line to speakers
as well as easier setup, without having to trim impedance against a preset reference.
LS4600 is built and run by a micro-controller, thus providing a digital platform in setting up your system. User can set various parameters by following the menu
displayed in the LCD screen. Among them shall be the high and low limits, buzzer on / off, display backlight, monitoring setup time, auto or manual mode as well as
doing manual testing.
It shall not be difficult to understand or to install the unit, but it is recommended that a trained personnel is engaged in order to tap the many features available. Before
installation, we suggest a thorough read through of the manual is done to avoid any unnecessary damage to your setup.
Please keep this manual handy for any future references.
Thank you for trusting another quality product from Amperes.
PAGE 2
www.ampereselectronics.com
1
2 3
4
5
6
7
8
9
FRONT VIEW
Introduction
Parts Identifications
amperes ..... Precision Design, Absolute Confidence
2 x 16 digit LCD display with back light setting is used as programming guide as well as measurement indications. The back light can be set to off if required by
accessing menu 6 (see programming chart). The back light is set to ON in default.
PAGE 3
1. LCD DISPLAY
Menu switch is used to access main menus. Once pressed momentarily, it shall revert to Menu 1.0 - Setup. Use Next and Prev keys to scroll through other
main menus. Once the relevant menu is found, use Enter key to access its following sub menu. To exit sub menus, press Menu key momentararily.
2. MENU BUTTON
Used to enter required main menu or its sub menus, confirm values, data or settings.
3. ENTER BUTTON
Previous key to scroll back to last menu or sub menu.
4. PREV BUTTON
Next key to scroll forward of menus.
5. NEXT BUTTON
9
10
11
12
13
REAR VIEW
The arrays of green LEDs provides the status of the channel which show the normal condition if lit. If both green and red LEDs do not lit for the particular
channel, it means that the channel has been bypassed from monitoring.
6. GREEN NORMAL LEDs
Once lit, it indicates that the particular channel is at fault ; either open, short or leakage. Refer to the LCD panel for exact condition of fault.
7. RED FAULT LEDs
The unit requires 24V DC power supply and recommended PSU shall be Amperes PS9400. Only use regulated power supply if other than PS9400 is installed.
PAGE 4
www.ampereselectronics.com
9. 24V DC POWER SUPPLY PORT
If fault is detected, a buzzing sound shall be emitted with the LED lit. Buzzer alert can be turned off via programming and this is indicated by this LED.
8. BUZZER LED
When line monitoring is initiated either manually or auto, it shall start in sequence from ch.1 to 6. With each channel under monitoring, a dry contact shall be
available at its correspondence zone. This shall provide 24V overriding voltage to volume controllers or local patch panel with overriding relay, thus allowing
direct measurement to the speakers. (Refer to Connecting the unit section of the manual). Overriding is required for accurate sensing in which volume
controllers set in various position shall have different impedances and such circumstances shall provide false alarm or alert.
Recommended practice is that 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 activity shall cause a burst of audio signal (such as BGM), which lasted for approximately 18 seconds.
This shall happen only when a BGM source is presence. If the particular zone is set to OFF (without BGM), the monitoring activity shall not emit audible sound.
10. ZONE TRIGGER OUTPUT PORT
It is for connections of incoming 100V line signal and output to speakers. Refer to Connecting the Unit in following section.
11. AMP/ZONE IN - OUT PORTS
Whenever a fault condition is detected, this port shall provide a dry contact to link to external alerting devices, such as mimic panel, etc.
12. OUTPUT FAULT CONTACT
Event triggered data shall be transmitted with RS485 protocol. This feature is optional and shall be available in future.
13. RS485 OUTPUT (OPTIONAL)
amperes .....Precision Design, Absolute Confidence
PAGE 5
C
H1 CH2 CH4CH3 CH5
C
H6
C
HA
NN
E
L
S
TAT
U
S
MENU
E
NT
ER
N
EXT
PRE
B
U
ZZ
E
R
A
UTO
a
mperes
amperes
SPEAKER ZONE
SEL
EC
T
7505VR
1
ZS
5121
OVERRIDE
3
1
2
64 5
6
3
4
2 5
61
2
3
4
5
6
5
4
3
2
1
12987
11
1
0
CALL
AL
L
SPEAKERS
ZONE 1
ZONE 6
RACK MOUNT
ZONE
VOL.CTRL.
SPEAKER
ZONE
SELECTOR
POWER AMPLIFIERS
LS4600
24V DC VOLTAGE
AUDIO SIGNAL
INPUTS NOT
SHOWN
VOLUME
CONTROLLERS /
PATCH PANEL
AUDIO SIGNAL
24V DC OVERRIDING
AUDIO SIGNAL
LS4600 shall be installed at the last point of audio output from the rack. For emergency 24V DC overriding activation from emergency
panel, please refer to the following section.
Configurations / Schematic
Instructions to install the unit can be divided into 3 parts :
1. Connecting the unit
2. External cabling works
3. Programming and setup
PAGE 6
www.ampereselectronics.com
24V DC OVERRIDING
CONTROL (EP1200 ETC)
+24V
TO MIMIC PANEL /
EXTERNAL FAULT
INDICATORS .ETC.
(A DRY CONTACT OUT)
RS 485 OUTPUT
(OPTIONAL)
VOLUME CONTROLLERS WITH
OVERRIDING RELAY
+24V
-VE
TO SPEAKERS
TO SPEAKERS
FROM ZONE SELECTOR
100V LINE OUTPUT
FROM ZONE SELECTOR
100V LINE OUTPUT
24V DC
POWER
repeat
It is recommended that separate zone shall have
separate overriding circuit. Otherwise, loop all outputs.
Disadvantage of looping all outputs :
If a particular zone is active (zone on) but the volume
controller at a certain area is shut off (eg. zone 1),
activation of monitoring from LS4600 of zone 2 shall
override the volume controllers at zone 1, thus a burst
of audio shall be heard ( such as BGM being currently
played).
Loop the 24V DC
overriding trigger to the
Zone Trig. O/P port
Max rating per zone
trigger is 3A. Use
external relay if
required
+VE
-VE
-VE
+VE
repeat
add
diode
Connecting The Unit
amperes .....Precision Design, Absolute Confidence
PAGE 7
The LS4600 detects circuit faults using impedance measurement method. In general, there is no limitation on how the external cabling to speakers or volume controller
are run, ie. branching is allow and does not need end line resistors as well as speaker capacitor couplings.
LS4600 have been improve all accuracy. It is recommended that periodical manual checking or setup to be made as connections may deteriorate over time and thus
affecting overall impedance value.
Only 4 wire system is suitable for measurement. 3 wire system may cause undesirable result each time checking is being made due to the presence of volume
controllers.
ZONE 1 - SPEAKERS PARALLEL
ZONE 2 - DIRECT VOLUME
CONTROLLER / SPK
ZONE 3 - VOLUME CONTROLLERS
PARALLEL
100V LINE
24V DC OVERRIDING
CIRCUIT
VOLUME
CONTROLLERS
24V DC OVERRIDING
CIRCUIT
24V DC OVERRIDING
CIRCUIT
100V LINE
100V LINE
2 CORE CABLE
External Cabling
PAGE 8
www.ampereselectronics.com
MAIN MENU
The last part of the unit installation shall be programming as well as entering required values. Program the unit by following the menus shown in the LCD display panel.
Each of the menu and sub menus shall be explained in the following sections.
In general, there are 7 main menus as shown below :
1.0 SETUP
o<>
2.0 MANUAL TEST
o<>
3.0 MEM. RECALL
o<>
4.0 AUTO TEST
o<>
5.0 BUZZER
o<>
6.0 LCD LIGHT
o<>
7.0 MEMORY
o<>
Upon powering for the first time, the unit shall display introduction wordings
in running mode. The green and red LEDs shall lit in sequence indicating
sequence of initialisation.
Initializing...
LS4600 VER: X.XX
AMPERES ELEC. S/B
LINE SUPERVISORY
>>
To begin programming, press, hold and release MENU
button, and the SETUP menu shall be displayed.
POWER UP
TO ENTER SETUP
1.0 SETUP
o<>
< denotes PRE
> denotes NEXT and
[] as ENTER
NOTE :
Minumum setup required for the system to run shall be Menu 1.0 and 4.0. If other menus are not set, they shall run according to default parameters.
>>
Programming And Setup
amperes ..... Precision Design, Absolute Confidence
PAGE 9
Use PRE or NEXT keys to select the required channel. Imp
value shall be shown, otherwise OPEN or SHORT shall
appear. Press ENTER to proceed to the next setting for the
selected channel.
A channel with or without value can be bypassed from
surveillance or accepted for monitoring. Select PRE to accept
for monitoring or NEXT to bypass.
Press ENTER and PRE or NEXT key for setting up remaining channels or MENU to return to
previous menu.
BP = Bypass
1.0 SETUP
o<> BASIC SETUP
1.1 CH.No.#
o<> Imp xxxx
1.1 CH.No.#
Accept?/Bypass?
1.1 CH.No.#
Bypass ?
1.1 CH.No.#
Accept ?
1.1 CH.No.#
Bypass OK
1.1 CH.No.# *
o<> Imp xxxx
1.1 CH.No.#
Accept OK
1.2 BP ON FAULT
o<> <ON> CH.#
1.2 BP ON FAULT
o<> <OFF> CH.#
2.0 MANUAL TEST
o<>
NEXT
>
ENTER
>
ENTER
>
ENTER
>
>
ENTER
>
>
NEXT
>
NEXT
>
PRE
>
PRE
>
MENU
>
MENU
>
MENU
* Default <ON>
>
ENTER
>
>
Channel bypass mark *
BASIC SETUP
1.0 SETUP
o<>
1.0 SETUP
o<> ADVAN SETUP
NEXT
>
Setup Menu
PAGE 10
www.ampereselectronics.coms
Use PRE or NEXT keys to select the required channel. Imp
value shall be shown, otherwise OPEN or SHORT shall
appear. Press ENTER to proceed to the next setting for the
selected channel.
A channel with or without value can be bypassed from
surveillance or accepted for monitoring. Select PRE to accept
for monitoring or NEXT to bypass.
The preselected values for high limit and low limits are from 00
ohm to 500 ohm, with incremental of 20 Ohms. We recommend
50 % higher or lower values to avoid unnecessary false
triggering.
Once the required value is selected, press ENTER to proceed
to the next sub menu.
1.0 SETUP
o<> ADVAN SETUP
1.1 CH.No.#
o<> Imp xxxx
1.1 CH.No.#
Accept?/Bypass?
1.1 CH.No.#
Bypass ?
1.1 CH.No.#
Accept ?
1.1 CH.No.#
Bypass OK
1.1 CH.No.# *
o<> Imp xxxx
1.1 CH.No.#
Accept OK
1.2 BP ON FAULT
o<> <ON> CH.#
1.2 BP ON FAULT
o<> <OFF> CH.#
2.0 MANUAL TEST
o<>
NEXT
>
ENTER
>
ENTER
>
ENTER
>
>
ENTER
>
>
NEXT
>
NEXT
>
PRE
>
PRE
>
MENU
>
MENU
>
MENU
* Default <ON>
>
ENTER
>
Channel bypass mark *
ADVANCE SETUP
1.0 SETUP
o<>
ENTER
>
MENU
>
1.0 SETUP
o<> BASIC SETUP
PRE
>
1.3 H-LIMIT +##
o<> Imp xxxx
1.4 L-LIMIT -##
o<> Imp xxxx
1.5 EXIT ?
o<> Y?/N?
ENTER
>
ENTER
>
MENU
>
NO
>
YES
>
Use PRE or NEXT
keys to select preset
sensitivity values and
ENTER
MENU
>
>
1.0 Setup Menu
amperes ..... Precision Design, Absolute Confidence
PAGE 11
This menu enable the user to view the values of impedance of
selected channels, which had been accepted earlier during
setup (Menu 1.0).
To clear the memories, use the MEMORY Menu (Menu 7.0) and
all previously stored values and settings shall be erased.
3.0 MEM RECALL
O<>
3.1 CH#=xxxx
H=xxxx L=xxxx
>
>
ENTER
MENU
>
# Use PRE or NEXT keys
to select channel number.
>
Press NEXT to Menu 4.0
PRE to Menu 2.0
>
2.0 MANUAL TEST
o<>
2.1 +Hi>xxxx
CH# Imp XXXX
>
>
ENTER
MENU
>
* Use PRE or NEXT keys
to select channel number.
>
Press NEXT to Menu 3.0
PRE to Menu 1.0
>
2.2 EXIT
O<>
ENTER
>
>
MENU / NO
Manual Test function is used to override timed auto test
operation. Each channel shall be checked for its condition
against the values entered during setup. (Menu 1.0)
In BASIC Mode Hi and Lo function will be disabled, only OPEN
and SHORT monitoring available.
To enable Hi and Lo function use ADVANCE setup in menu 1.0
(SETUP)
The ' * ' symbol will show when the value measured is out of
preset range of Hi and Lo limits.
Short or Open condition is self explainatory.
A fault condition shall have red LED lit and vice versa.
2.1 -Lo<xxxx *
CH# Imp XXXX
YES
>
>
Display change 1sec interval
Will indicate when measure
value lower than low limit
value.
Example: (ADVANCE MODE)
In 1.0 SETUP mode
H+LIMIT+80R
L+LIMIT-60R
Ch. Measure Imp = 500R
In 2.0 MANUAL TEST will show
+Hi>580R -Lo<440R
ENTER
2.0 Manual Test
3.0 Mem. Recall
PAGE 12
www .ampereselectronics.com
4.0 AUTO TEST
O<>
4.1 SELECT TIMER
O<> Test Seq=off
>
>
ENTER
MENU
# Use PRE or NEXT keys
to select Auto or Manual mode
>
Press NEXT to Menu 5.0
PRE to Menu 3.0
>
4.2 AT.TEST ON?
O<> Y?/N?
ENTER
ENTER
>
ENTER
## Test interval. Min 1min to
24hrs. By default, auto mode
is set to off. Use PRE and
NEXT keys to select time.
Test sequence activated and the
unit run in auto mode with preset
timer. Press MENU key to return to
menu 4.0
>
This menu must be accessed for first time programming, in which
shall determine how the unit shall run, either manually or
automatically.
If SELECT TIMER mode is selected, testing interval time should
be entered, otherwise, the default timer is set to off.
Once timer has been entered and auto mode selected, the unit
shall immediately start testing sequence and the counter began
from then onwards.
To access to the main menu again, press Menu key.
4.2 AT.TEST ON?
O<> NO
4.2 AT.TEST ON?
O<> YES
NEXT
>
>
MENU
PRE
>
LS4600 VX.XX[SPEAKER LINE SURVEILLANCE]
<<Auto Test xxh:xxm:xxs<<-Remaining..<xxx
>
Interval timer set
Remaining countdown timer
Firmware version
4.0 Auto Test
amperes ..... Precision Design, Absolute Confidence
PAGE 13
5.0 BUZZER
o<>
5.1 KEY BEEP
o<> ON
>
>
ENTER
MENU
NEXT
>
# Use PRE or NEXT keys
to switch on or off key buzzer
>
Press NEXT to Menu 6.0
PRE to Menu 4.0
>
5.1 KEY BEEP
o<> OFF
5.2 FAULT BUZZER
o<> OFF
>
PRE
ENTER
>
ENTER
>
ENTER
ENTER
ENTER
5.1 KEY BEEP
o<> ON
>
>
PRE
>
NEXT
>
NEXT
5.2 FAULT BUZZER
o<> OFF
>
PRE
5.2 FAULT BUZZER
o<> ON
>
>
PRE
>
NEXT
ENTER
>
ENTER
>
Buzzer is available for button pressing and alert / fault signal. This
feature can be turned off to fit to ones' preference.
For fault alert buzzer, if this is switch on, the Buzzer LED shall not
lit when a failure is detected. If the buzzer is switched off, the
buzzer LED and the correspondence channel fault LED shall lit.
>
5.0 Buzzer
PAGE 14
www .ampereselectronics.com
6.0 LCD LIGHT
o<>
6.1 LCD LIGHT
o<> ON
>
>
ENTER
MENU
NEXT
>
>
Press NEXT to Menu 7.0
PRE to Menu 5.0
>
6.1 LCD LIGHT
o<> OFF
>
PRE
ENTER /
MENU
6.1 LCD LIGHT
o<> ON
>
>
PRE
>
NEXT
>
Use PRE or
NEXT key to
switch on or off
back LCD light
7.0 MEMORY
o<>
7.0 MEMORY
O<> RESET?
>
>
ENTER
MENU
ENTER
>
>
Press NEXT to Menu 1.0
PRE to Menu 6.0
>
7.1 MEMORY SAVE
O<> Y?/N?
>
7.2 MEMORY RESET
O<> Y?/N?
>
YES
>
Use PRE or NEXT
key for SAVE and
RESET memory.
MENU
System reset - menu back to 7.0 MEMORY
This menu provides the option to turn on or off the LCD back light.
If earlier settings are to be wiped off, use this memory reset and
the system shall return to default.
After completing all channel setting, the changed parameters
MUST be saved.
DC power to the unit can be switched off when system is not in
used. Settings shall be retained in the memory.
ENTER / MENU
7.1 MEMORY SAVE
SAVING.. DONE
7.2 MEMORY RESET
RESETTING..DONE
7.0 MEMORY
O<> SAVE?
NEXT
>
PRE
>
>
YES
ENTER
>
>
6.0 LCD Back Light
7.0 Memory
amperes ..... Precision Design, Absolute Confidence
PAGE 15
Operating voltage
Power consumption
Capacity
Processor
Impedance detection range
Power measurement range
Measurement accuracy
Pilot tone injection frequency
Pilot tone signal output level
Transmittal detection period
Total detection time
Detection interval
Sensitivity setting
Indicators - LED
Display LCD
Audible output signal
Optional failure output
Dry contact rating
DC detection output
Weight
Dimensions
24V DC via PS9400 regulated PSU
3.5W
6 channel
PIC microcontroller with 12 bit ADC
Up to 4.4 KOhm
Up to 500W max
+/- 10%. Best at 1 K Ohm
1 KHz
5V sine
3 secs per channel
18 second (6 channels)
User preset from 1 min to 255 hrs
User preset at each channel
Normal; Fault; Buzzer; Auto Run
2x16 character with back lite setting
Continuous buzzer with OFF option
RS485*
3A NO
24V DC for individual channel
2.2 kg
482 (W) x 44 (H) x 130 (D) mm
6 CHANNELS IMPEDANCE MEASUREMENT METHOD
Each unit has 6 channels of line monitoring. For larger quantity of
channels, use more than one unit. Detection is via impedance
measurement method, thus allowing speaker circuit branching and no
capacitor coupling.
LCD DISPLAY FOR EASE OF SETUP AND DETECTION
Setup is simple by following the menu displayed on the LCD display
panel. Channel condition for normal and fault shall be indicated by LEDs
and buzzer.
SETTING PROFILE
User shall have the choice of auto or manual detection, monitoring
intervals, sensitivity of high and low limits, buzzer activation, LCD panel
back light , etc.
AUX 24V DC
24V overriding DC can be channeled to the specific speaker line to
bypass volume controllers or patch panel, thus providing a more
accurate detection.
Summary Of Features
Tech Specifications
Only Amperes Electronics Service Centres are allowed to make warranty repairs : a list of Amperes Electronics Service Centres may be asked for by the purchaser or
send directly to Amperes Electronics Sdn Bhd at 70 Jalan Industri PBP 3, Tmn Perindustrian Pusat Bandar Puchong, 47100, Puchong, Selangor, Malaysia. It may also
be sent to its master distributor in the country the product is purchased. This warranty is not valid if repairs are performed 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 product from the main
system are for the account of the purchaser. This warranty shall not extend to the replacement of the unit.
This warranty does not cover damages caused by misuse, neglect, accident of the product as well as using the product with power supply voltage other than shown on
the product, or any other power supply source / adaptor not recommended by the manufacturer.
This warranty does not cover damages caused by fire, earthquakes, floods. lightning and every cause not directly related to the unit.
This warranty does not include any indemnity in favor of the purchaser or the dealer for the period out of use of the unit; moreover the warranty does not cover any
damages which may be caused to people and things when using the product.
This warranty certificate is valid only for the described product, and is not valid if modifications are made on this certificate or on the identification label applied on the
product.
This warranty covers all the material and manufacturing defects and is valid for a period of 12 months from the date of purchase or for a longer period in countries where
this is stated by a national law. In this case, the extension is valid only in the country where the product is purchased.
Amperes Electronics Sdn Bhd is not obliged to modify previously manufactured products under warranty if the design changes or improvements are made.
Information contained in this manual is subject to c
hange without prior notice and does not represent a commitment on the part of the vendor. AMPERES
ELECTRONICS SDN BHD shall not be liable for any loss or damages whatsoever aris
ing from the use of information or any error contained in this manual.
It is recommended that all services and repairs on this product be carried out by AMPERES ELECTRONICS SDN BHD or its authorized service agents.
AMPERES series must only be used for the purpose they were intended by the manufacturer and in conjunction with this operating manual.
AMPERES ELECTRONICS SDN BHD or its distributors cannot accept any liability whatsoever for any loss or damages caused by service, maintenance or repair by
unauthorized personnel, or by use other than that intended by the manufacturer.
PAGE 16
Warranty Conditions
Disclaimer
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