Vacuubrand VNC 2 E User Manual download pdf (Page 26)

Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully

the validity of this document with respect to his product. Manual-no.: 999199 / 28/11/2012

page 26 of 41

Setting of the interface

Setting of the interface parameters directly at the controller is described below. Enter the device menu

”Select, RS 232”. The factory-set values are underlined. Adjust interface parameters with keys s or

t and conrm with ”Enter”.

➨ Baud 2400, 4800.9600 or 19200

➨ Parity: 7 data bits odd (Parity 7-O-1); 7 data bits even (Parity 7-E-1);

8 data bits none (Parity 8-N-1)

➨ Handshake (Handsh.): no Handshake (Handsh. None), XON/XOFF Handshake (Handsh. Xon-

Xoff), RTS/CTS Handshake (Handsh. RTS-CTS)

➨ Remote On, Remote Off,

➨ Startbit = 1, Stopbit = 1

➨ Sending: timeout 1s, receiving: timeout 10s

In remote mode (Remote On, ”P” is displayed) all keys at the controller are without function. To return to

the manual operation of the controller, set the controller to the mode ”Remote Off” via the interface or

switch off controller and enter the device menu within the rst 2s after having switched on the controller

again.

Interface parameters

The controller VNC 2 is equipped with a serial interface (RS 232C, nine-pole Sub-D-plug).

☞ Plug-in or remove the cable (cable RS 232C) from the interface only if the equipment is switched

off.

☞ The interface is not electrically isolated from the measuring circuit.

☞ For optimal electromagnetic compatibility assemble an interface lter (cat. no.: 638235).

The controller can be operated via serial interface. Measuring results, preselections and the status of the

controller can be read at any time.

Factory-set the read and write commands are completely compatible to the VACUUBRAND con-

troller CVC 2000. An extended instruction set compatible with CVC 3000 is available using the

command ”CVC 3”.

Calibration in the factory

The VACUUBRAND DAkkS calibration laboratory is accredited by the Deutsche Akkreditierungsstelle

GmbH (national accreditation body of the Federal Republic of Germany) for the measurable variable

pressure in the pressure range from 7.5*10

-4

Torr to 975 Torr (10

-3

mbar to 1300 mbar) in accordance with

the general criteria for the operation of testing laboratories dened in the DIN EN ISO/IEC 17025:2000

series of standards (accreditation number D-K-15154-01). The DAkkS is signatory to the multilateral

agreements of the European cooperation for Accreditation (EA) and of the International Laboratory Ac-

creditation Cooperation (ILAC) for the mutual recognition of calibration certicates.

Rely on calibration in the VACUUBRAND calibration laboratory:

- To meet the requirements of the DIN ISO 9000ff and 10012 series of standards regarding the calibra-

tion of inspection, measuring and test equipment at specied intervals.

- To document that the vacuum gauges calibrated are traceable to national standards of the PTB

(Physikalisch-Technische Bundesanstalt; German national institute for science and technology and

the highest technical authority of the Federal Republic of Germany for the eld of metrology and

certain sectors of safety engineering).

DAkkS Calibration Controller VNC 2 ...........................................................................................900217

Control of measuring equipment

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Vacuubrand VNC 2 E User Manual Page 26

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