Precisa 350-8182-000, Руководство по эксплуатации

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390 Basics
Precisa Gravimetrics AG 20
2.8 Working with the balance
Always choose a suitable location for the balance as described in chapter 2.1.
Before starting to work with the balance, always ensure the balance has been warming-up for at
least two hours. Best never disconnecting it from the mains, just turning off its display by pressing
"ON/OFF" when not in use, see 2.9 Turning off the screen, restarting and turning off the balance.
When restarting to work with the balance again, turn on the screen and place and remove full load
for a moment, in order to reduce possible mechanical tensions.
Place all loads always carefully and, whenever possible, in the center of the weighing pan!
NOTE
In order to get exact measurements, always choose a suitable location
for the balance, ensure its draft shield workes properly, ensure it has
reached its operating temperature, ensure it is levelled and adjusted,
and place loads carefully in the center of the weighing pan.
2.9 Turning off the screen, restarting and turning off
the balance
When the balance is running, the ON/OFF switch has two functions.
Pressing "ON/OFF" briefly turns the screen off and on. When not using the balance, this is the best
way for saving the screen and keeping the balance always at operating temperature at the same
time.
Holding "ON/OFF" for a few seconds calls up the power mode window, giving you the possibility to
restart the balance or to abort the process.
For turning the balance totally off, disconnect it from the mains.
DANGER
Be sure to hold the plug, not the cable, when disconnecting the balance
from an electrical outlet!
2.10 Dual range (DR) and floating range (FR) balances
With the dual range balances, weighing is always first carried out in the fine range, which is 10
times mor precise. When the fine range is exceeded, the balance switches automatically to the
coarse range.
The floating range balances have a fine range (10 times more precise), which moves over the entire
weighing range. By pressing "Tare", the finerange can be called up as often as required over the
entire weighing range.
2.11 Verified balances
Verified balances are provided with the EC/OIML certification, or meet the local verification
regulations.
On verified balances, the balance range and certain weighing functions differ from standard.