VERDER CARBOLITE GERO ABA 7/35B, Инструкции по установке, эксплуатации и обслуживанию, Страница: 20 / 94

3.0 Installation
3.8 Balance Installation
Remove the balance from its packing and isolate the ABA from the electrical supply.
Remove both lower side covers.
With the furnace in its intended final location, place the spirit level on the balance
location plate, as shown in Fig 15.
If the plate is not level then adjust the whole furnace, either by placing suitable shims
under the furnace feet, or adjusting the stand legs.
Open the chamber door and make sure that there are no obstructions, such as loose
packing or insulation material in the four holes in the chamber hearth that the legs of
the balance pan extension pass through.
Position the front brick cover over the front of the chamber (see Fig 16.).
In the base compartment, loosen the four screws holding the balance location plate
using a 10mm spanner.
Partly insert the balance into the left side opening of the furnace with the ‘front’ sloping
portion of the balance facing towards the rear of the furnace (see Fig 17.). Connect the
combined balance data and power supply lead marked ‘internal’ to the balance body,
lightly tightening the plug’s retaining screws, then connect the balance’s earth cable to
the spade connector in the upper rear part of the recess (see Fig 19. and Fig 20.).
Open the door lock with the key provided. Insert the balance pan extension into the
main chamber with the extension legs fitting through the four holes in the chamber
hearth (Fig 24. to Fig 25.). Note that the front edge of the extension is folded down.
Fasten the balance pan extension to the balance using the four screws and Allen key
supplied (see Fig 26. to Fig 27.).
Place the sample tray and spirit level in the furnace chamber, as shown in Fig 22.
Adjust the threaded balance legs until the tray is level.
The balance pan extension legs should pass centrally through the holes in the chamber
floor (see Fig 28.); this can be seen from the balance side access panel (see Fig 21.).
If it is necessary to adjust the balance position, slacken the four screws holding the
location plate. Gently tap or slide the plate until all four legs are central, then retighten
the screws.
Note that for accurate and reliable weight measurement, there must be no
mechanical contact between any fixed parts of the furnace and the balance pan
extension. The method described above is designed to ensure this across the entire
operating temperature range.
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