Applications; Remote Sensing And Voltage Programming; Maintenance; After Sales Service - elc AL 991s Gebrauchsanweisung

In the case of an overload, the warning Led of the output(s) concerned flashes, as
well as the indicator. This one displays Ic.A, Ic.B, Ic.C or +Ic. according to the
output(s) in overload, even if the output in overload is not the selected one.
5.3.1 Cautions
Before applying the load, to always set the power supply. To connect the load using
insulated cords with sufficient diameter. To disconnect the load, before switching off
the power supply. To keep the instrument away from dust.
Any interruption of the protective conductor outside the case or any
disconnecting of the earth terminal may render the instrument dangerous.
The intentional interruption is forbidden.

5.4 APPLICATIONS

Your power supply type AL 991s meets most of your needs.
With the A output, you can feed all mountings requiring 2 symmetrical voltages, like
circuits with operational amplifier or digital to analogue conversion components (and
inversely), which are more and more used.
In the 30V configuration, you have a universal power supply. In this case, do not forget
that your mounting is feeded with reference to the -15V or +15V terminals.
You will not be able to use the B and C power supplies with the same mounting
anymore, because they will not have the same reference.
The B output meets the requirement of the components of new generation type
microprocessor or programmable logic. These components feed themselves with
lower and lower voltages and sometimes high currents. The digital controls bring
ease in the adjustment of 3.3V or 2.7V voltages for example.
More classically, it will also be able to feed all TTL components.
The C output enables you to have a very useful negative or positive voltage, in order
to characterize components, such as diode or transistor for example.
The A+B+C power supplies enable you to feed directly combined analogue/digital
boards, where voltages like +12V, -12V, +5V and -5V are often required.
6. REMOTE SENSING - VOLTAGE PROGRAMMING
You can use your power supply in this way thanks to the software LG991S (download
the software in our website : elc.fr) and to the socket RS232 mounted in the
instrument's rear. For the connection, you have to use a screened cable NULL-
MODEM with a maximum lenght of 15 meters. The connector has to be pinned in the
instrument's rear. After the connection have been done, to install the software
according to the instructions. To switch the power supply on and to start the software.
Then, you can use your power supply from your computer and generate automated
events. In order to master the software and the definition of the controls codes, please
refer to the help on line.

7. MAINTENANCE

No particular maintenance is required for this instrument.
To avoid dust, moisture, shocks ; your instrument will be grateful for that.
For the cleaning, please use a smooth duster.
If indicator do not light up on switching on, to check :
- That the «ON/OFF» switch is pressed
- The mains voltage
- The connection to mains
- The protective fuse (5x20 T1.6A).

8. AFTER SALES SERVICE

The after sales Service is ensured by the elc company.
During one year, spare parts and workmanship are guaranteed. This guarantee does
not apply to instruments presenting defects or failures caused by an improper use
(wrong mains voltage, shocks ...) or which have been repaired outside our factory or
the repair shops of our authorized agencies.

9. DECLARATION OF CONFORMITY

according to ISO / IEC guide 22 and EN45014
Manufacturer : elc
Address : 59, av. des Romains - 74000 Annecy - France
declares the product
Name : Stabilized Power-supply
Number : AL991s
conformable to following specifications :
Safety : EN61010-1 : 2001
EMC : EN 61326-1 : 2006
Further information :
The product above is conformable to the requirements of the «Low Voltage» directive
2006/95/CE and of the «Electromagnetic Compatibility» directive 2004/108/CE.
Annecy, February 23th, 2009
Henri Curri, manager
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