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20
Charging the Battery Pack
1
Supply the instrument with AC power via the method described above.
2
Turn on the power switch.
3
Press the [CHARGE] key.
"CHARGE" is displayed. The instrument then momentarily shows the remaining
time every minute. The battery pack is fully charged in about 10 hours, and
"CHARGE END" is displayed.
4
Turn off the power switch.
5
Disconnect the power cord and the AC adapter from the instrument.
Display Indicating Low Battery
After a certain length of operation has passed and the battery power weakens, "
"
appears in the upper-left of the screen. When you see this display, immediately charge
the pack.
Guideline for continuous operating time
The operating time of the Ni-Cd battery pack is approximately 7.5 hours when in
continuous use. Refer to the following table:
Generated Output
Measurement
24 V DC
Backlight
Life (when used
Function
Power Supply
continuously)
20 mA (with 1 k
Ω
load)
on
on
on
Approx. 2.5 hr.
5 V DC (with 500
Ω
load) on
off
off
Approx. 7.5 hr.
Turning the Power Switch On and Off
Before Turning On the Power
For driving this instrument, AA dry cells, an AC power supply (optional), or a Ni-Cd
battery pack (optional) is available. Before turning the instrument on, prepare the
intended power supply following the above instructions.
Note
Before operating the instrument using dry cells or the Ni-Cd battery pack (i.e., battery driving),
disconnect the power cord and AC adapter. If the AC power source remains connected, the
instrument will operate on the AC power rather than on the batteries.
Turning the Power on and off
Pressing the power switch on the front panel alternates between on and off. When
turning the power switch on, the self-diagnosis function runs, and "OFF" that indicates
the output is turned off and "
mV" appear on the lower line of the display.
Automatic Power Off
If the instrument has not received a key operation or sending/receiving request through
the communication interface for approximately 30 minutes, the power supply
automatically turns off. If necessary, turn the power switch back on.
Turning Backlighting On and Off
Backlighting can be turned on so that it is easy to see the screen even if generation/
measurement is done in a dark place. However, this will shorten the life of the batteries
when the instrument is being operated by battery.
1
Press the [
] key.
2
To turn backlighting off, press the [
] key again.
Free Datasheet http://www.datasheet-pdf.com/