Mettler Toledo BBA422 User Manual download pdf (Page 10)

BBA422 / BBA425 / BBK422

Introduction

User manual 22013180B 05/08

1.3.2 Connecting the power supply

CAUTION!

Before connecting the scale to the mains, check whether the voltage value printed on

the rating plate corresponds with the local mains voltage.

▲ Never connect the device if the voltage value printed on the rating plate is different

to the local mains voltage.

➜ Plug the mains plug into the socket.

After connection, the device performs a self-test. When the zero display appears,

the device is ready to weigh.

➜ Calibrate the device in order to obtain the greatest possible precision, see

Section 3.3.1.

Note The storage battery is also suitable for permanent mains operation.

➜ In order to obtain the full nominal capacity we recommend that you discharge the

storage battery at regular intervals (approx. every 4 weeks) through normal

operation.

Scales with a built-in battery can work independently from the mains for approxi-

mately 30 hours in normal operation. A prerequisite for this is that the background

lighting is switched off and that no peripheral devices are connected.

The device automatically switches to battery operation as soon as the mains supply

is interrupted. When the mains supply is restored, the device automatically switches

back to mains operation.

The battery symbol indicates the present charging level of the battery. 1 segment cor-

responds to approx. 25 % capacity. When the symbol flashes the battery must be

charged (min. 4 hours). The charging period is extended if work is continued during

charging. The battery is protected against overcharging.

The charging time of the storage battery amounts to approx. 6 hours. If the device

continues to be operated during the charging process, the charging time is extended.

The storage battery has a service life of approx. 1,000 charging/discharging cycles.

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Mettler Toledo BBA422 User Manual Page 10