OHAUS Ranger Counting Scale, Руководство по эксплуатации

Страница: 11 / 71

1 1
2.5 Battery operation
The scale is equipped with one bi-directional RS232 interface for commu-
nication with printers and computers. When the scale is connected
directly to a printer, displayed data can be output at any time by simply
pressing the
PRINT UNITS button or by using one of the RS232 Mode
print features. (A second optional RS232 interface is also available).
Connecting the scale to a computer or printer enables you to operate the
scale from the computer, as well as receive data such as displayed
weight, weighing mode, stability status, etc. and to have a permanent
printed record.
On the rear of the scale, a 9-pin male subminiature “D” connector is
provided for interfacing to other devices. Table below indicates pin
connections.
1 N/C
2 Data Out (TXD)
3 Data In (RXD)
4 N/C
5 GND
6 N/C
7 N/C
8 N/C
9 N/C
See Accessories listed in paragraph 6.5. Connect a suitable cable from
the scale to the external device.
Review paragraph 6.2, RS232 Interface for additional information regard-
ing formats and command table.
(See rear of balance)
1 2 3 4 5
6 7 8 9
2.6 Connecting communications
Scales with a built-in battery automatically switch to battery operation if
there is a power failure or the power cord is removed. The battery symbol
indicates the current discharge status of the battery (1 segment = 25%
capacity). If the symbol flashes, the battery must be recharged.
A discharged battery requires at least 8 hours until it is recharged. During
the charging process, work with the scale can continue, but under these
conditions, a longer charging time is needed.
In normal use, the battery can operate the scale for up to 30 hours
independent of the AC power line. The battery is protected against
overcharging and the scale can remain connected to the AC power line.