ELTRA CHS-580A Service-Handbuch

Operating and Service Manual

Autoloader (Laser controlled) Helios

Original

Eltra GmbH

Haan, Retsch-Allee 1-5

D-42781 Haan

Federal Republic of Germany

1General information ...............................................................................................................................6

1.1 Loader models................................................................................................................................... 6

1.2 Space requirements........................................................................................................................... 6

1.3 Connecting and disconnecting plastic tubes ..................................................................................... 7

2Chain tension adjustment .....................................................................................................................8

3Adjustment of the chain motor belt....................................................................................................10

4Finger adjustment ................................................................................................................................11

5Arm installation ....................................................................................................................................12

6Mechanical connection to the analyser .............................................................................................13

7Electrical connection ...........................................................................................................................15

8Pneumatic connection.........................................................................................................................17

9Step by step ..........................................................................................................................................18

9.1 Single step operation for mechanical adjustments.......................................................................... 18

9.2 Vertical Laser................................................................................................................................... 21

9.3 Horizontal Laser............................................................................................................................... 22

9.4 Adjusting the Position of magnetic switch ....................................................................................... 23

9.5 Adjustment of the arm at the crucible pick-up position.................................................................... 25

9.6 Adjustment of the loader position when placing the crucible on the pedestal................................. 27

9.7 Adjustment of the up/down speed of the arm.................................................................................. 28

9.8 Repeating the single step cycle....................................................................................................... 28

9.9 Non-stop cycle................................................................................................................................. 28

10 Continuous operation ..........................................................................................................................29

11 Error messages ....................................................................................................................................30

12 Index ......................................................................................................................................................31

Appendix .................................................................................................................................. following page

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1 General information

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1.1 Loader models

There are 3 standard loader models available:

130-crucibles version, 104-crucibles version and 36-crucibles version.

The difference between these models is the form of the loader’s platform, i.e. the size of the loader.

There is no difference with regard to loader arm, arm support and drive, lasers/sensors, chain

drive, pneumatics and electronics. Therefore the adjustments, described in this manual are valid for

all models.

Fig.

: Loader 130-crucibles version

The loader is supplied after testing without being completely dismantled. It is only detached from

the analyser and the arm with the fingers are removed for safety reasons( see Chapter “ Arm

installation”). Therefore, an adjustment after installation may not be needed; however, the

adjustments are described below. They may be necessary for accurate readjustment.

1.2 Space requirements

Fig.

: Space requirements

Analyser

Loader

Flat screen

Crucibles bin

PC keyboard

Balance

Before installing the analyser with the loader, ensure that sufficient space of 220 80 cm is

available. It is suggested to place the analyser in a position where the front end of the housing (1)

has a distance at least 5 cm to the front end of the desk, otherwise there will not be enough space

for placing the crucibles bin (3) on the desk.

NOTICE

Under no conditions should the analyser and loader be placed in direct sunlight or be exposed to

the wind of air conditioners or to the wind blowing through open windows and doors

1.3 Connecting and disconnecting plastic tubes

The plastic tubes are connected by pushing them into the fittings. To connect the tube, simply push

it into the fitting as far as it would go.

Fig.

: Connecting plastic tubes

To disconnect the tube, first press the plastic ring of the fitting up to the metal ring, keep it properly

pressed and pull the tube.

Fig.

: Disconnecting plastic tubes

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2 Chain tension adjustment

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Fig.

: Chain tension adjustment

The loader is supplied with the adjusted chain tension. If necessary, check the tension of the chain

as follows:

1. Press and hold several crucible trays (1) of the rear row on the platform, so that they can not

move.

2. Move a few trays (2) of the front row to the left and to the right. They should move for about

1 mm.

3. If not, loose the screw underneath the toothed wheel (3) and adjust by moving it back and

forth.

Fig.

: Bottom view

4. Fix the screw (3) and check again.

CAUTION

A too strong tension can lead to a blockage when the crucibles are moved by the motor. If the

chain plays too much, bent elements of the chain can block at the indicated point (4). Therefore

keep about 1 mm play as described above.

5. Pull the front part (5) for about one or two millimetres. The turning point is (6). When you

release it, it should return back pressing the crucible tray, which is at pick up position (see

chapter “Single step operation”), to the wheel (7) behind the tray. This is to make sure that

each crucible when at pick up position is always at the same place

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3 Adjustment of the chain motor belt

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Fig.

: Adjustment of the chain motor belt