Metrohm 765 Dosimat User Manual download pdf (Page 7)

Overview

765 Dosimat

Rear view of instrument:

6 Data inputs and outputs

Via data transfer interface according to RS 232 C including optional analogue

output. For 25-pin D subminiature plug.

Important: Note plug positions, page 47!

Plug cables in and out only if the instruments are switched off.

7 Data inputs and outputs

Via data transfer interface according to RS 232 C. For 8-pin plug.

(For details see page 47)

Plug cables in and out only if the instruments are switched off.

8 Connection for keyboard

For details of operation with keyboard 6.2149.000 see page 4ff.

9 Power connection

In power supply systems, in which strong HF interferences (transients) are su-

perimposed on the power voltage, the 765 Dosimat should be connected via an

additional power line filter, e.g. METROHM 615 model.

The main cables supplied with the instrument are three-core and equipped with

a plug with an earthing pin. If a different plug has to be fitted, the yellow/green

lead must be connected to the protective earth. Each break in the earthing inside

or outside the instrument can make it a hazard.

When the instrument is opened or if parts of it are removed, certain components

may be live if the instrument is connected to the power line. The power cable

must therefore always be unplugged when certain adjustments are made or

parts replaced.

10 Power switch

Switching on and off Dosimat. The 765 Dosimat is equipped with a non-volatile

memory, i.e. set parameters remain in the working memory if the Dosimat is

switched off and on.

11 Earthing socket

The 765 Dosimat must be grounded correctly and effectively, if necessary

through the separate earthing socket.

12 Connection for stirrer

In general a Magnetic Stirrer (forms a complete titrating stand). Other stirrers

may be connected as well, e.g. a METROHM Rod Stirrer. Supply voltage output:

+9 V DC (I # 200 mA).

13 Connection for external dosing contact

E.g. 6.2107.000 push button cable.

14 Indication of power voltage

Make sure the current has been adapted correctly before Dosimat is switched

on.

15 Identification plate

Indication of model, series and serial number.

1 2 3 4 5 6 7 8 9 10 11 12 ... 65 66

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Metrohm 765 Dosimat User Manual Page 7

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