PSC Magellan 8500 Service Manual download pdf (Page 29)

METTLER TOLEDO

DIVA Service Manual 23

4.4 Operations

4.4.1 Weighing and Communication

Place the item to be weighed on the platter, the weight will be displayed.

Remote ASCII commands can control the scale through the provided RS232 port. Commands

include zero, tare, and other data functions depending on the protocol. See Section 6 for

available protocols and their descriptions.

4.4.2 Backlight function

DIVA is equipped with a backlight for the display. If ambient lighting conditions are not sufficient,

the backlight can be switched on to easily read the display.

To activate, Press and hold the Zero Key for about three seconds until a long beep is heard and

the backlight turns on.

Use the same procedure to switch the backlight off.

When the scale is not used for 1 minute, the backlight will automatically switch off. When weight

is placed on the platter or a key is pressed, the backlight will switch on again.

4.4.3 Zero Functions

There are two ways to re-zero the scale:

Power-up Zero

The scale will automatically capture zero when it is turned on. The power-up zero capture range

is +/-10% of the scale capacity. When the scale is turned on with a weight on the platter of more

than +/-10% of the capacity, the scale will not capture zero and the weight display will show

"-----". After removing the weight, the scale will capture "zero".

Pushbutton Zero

The Zero Key zeros the scale within the range of +/-2% of the scale capacity. To use this function,

the scale must be in the gross weighing mode (NET cursor must be off) and in a no motion

condition. When the weight on the platter is more then +/-2% of the scale capacity, pressing

neither the Zero Key nor a remote ASCII Zero command will be accepted.

4.4.4 Tare Function

The Tare Key allows you to subtract weight from the platter for items like containers that will be

used to hold the item being weighed.

Place the empty container or wrapping material on the platter and Press the Tare Key.

Place the item to be weighed in the container or on the wrapping material and onto the platter.

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PSC Magellan 8500 Service Manual Page 29