Gamma Scale GMC-230 운영 매뉴얼 - 페이지 5

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be switched off and the relevant cursor will disappear.

Note: No matter whether its backlight function has been switched on or not, the

backlight will automatically switch on about 1 second once powered on.

5.7 Auto Shut-off

If this function enabled, the scale will automatically shut off in 4 minutes after

operation stop, at this time the indicating cursor "Auto Off" will appear. The result of

auto shut-off is the same with pressing [OFF].

Prompt: The meaning for operation stop is that all the operation keys are not operated

when the scale is remained at zero position.

5.8 RS-232C output

The scale transmits RS-232C signal in continuous mode by MCS-51 way 1, the data

to be sent is ASCII code, every group has 16 frames including I frame of start character

(02), 2 frames of state mark, I frame of empty case character, 6 frames of displaying data

and 6 frames of tare data. Every frame consists of 10 digits. The first is start bit, "0". The

tenth is stop bit, "1". The other eight are data bits (from low to high), the patterns is as

follows:

Start Bit

D0 D1 D2 D3 D4 D5 D6 D7 Stop Bit

Note: The Baud rate for its data output is usually set at t200 when the scale leaves

the company, and you may amend the Baud rate in calibrating state according to your

need.

6. Storage Battery Maintenance

6.1 When the low voltage indicate light appears, it means the battery voltage is too low

for the scale to work normally. At this time, charge the battery. With AC power, charge

can be processed while operating. If do not charge the low voltage battery in time, and

continue to operate it, the scale will be forced to shut off in several minutes.

6.2 If it automatically shut off as soon as DC power turns on, it means its battery voltage

is too low, at this time, charge the battery at once.

6.3 If the working time of storage battery is rather short than fully charged, it is

recommended to change the storage battery. Open the battery box cover, pulling up the

positive and negative metal pieces and removing the old storage battery. While opening

the cover, be careful to make sure the battery will not drop. Be sure of correct connection

of the storage battery's electrode.

6.4 If the scale is not used for a long time, be sure that the storage battery is in power-off

status.

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