Metrohm 797 VA Computrace - Manual (Page 20)

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
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2 Installation
This section offers a full description of the 797 VA Computrace Stand
and provides detailed information on the various electrodes and the
stirrer. Reliable operation of the instrument is assured only if you
follow the instructions in this section exactly.
2.1 Setting up the instrument
2.1.1 Packaging
The 797 VA Computrace Stand is supplied together with the separately packed acces-
sories in special packages designed to ensure excellent protection. These contain
shock-absorbing foam linings. The instrument itself is packed in an evacuated poly-
ethylene bag. As only these special packaging guarantees indemnified transport of the
instrument, it is essential you store it in a safe place.
2.1.2 Check
After recipt, immediately check whether the shipment is complete and has arrived
without damage (compare with delivery note and list of accessories in sections 4.2). In
the case of transport damage, see instructions in section 4.5.1 "Warranty".
2.1.3 Location
Place the 797 VA Computrace on a laboratory bench in a position suitable for opera-
tion and which is free from vibrations, protected against corrosive atmospheres and
contamination by chemicals. The drip pan 8 (6.2711.040) has to be placed at the
front side of the 797 VA Computrace Stand to catch drops (see Fig. 1).
2.2 Installation of the 797 VA Computrace Stand
If the 797 VA Computrace Stand is connected to the power supply,
the instrument may not be opened or parts removed, as there is a
danger of contact with live components. Before you open the 797 VA
Computrace Stand to change components or for maintenance or
repair work, always switch off the instrument by setting the mains
switch 14 to the OFF position and then disconnect the mains cable
from the mains connection plug 16 of the 797 VA Computrace Stand.
2.2.1 Mains cable and mains connection
The instrument is supplied with one of three mains cables:
• 6.2122.020 with plug SEV 12 (Switzerland, …)
• 6.2122.040 with plug CEE(7), VII (Germany, …)
• 6.2133.070 with plug NEMA 5-15 (USA, …)
which are three-cored and fitted with a plug with a grounding pin. If a different plug
has to be fitted, the yellow/green lead (IEC standard) must be connected to protective
earth (protection class 1).