Manual
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10 Power supply from optional mains adaptor
The meter also can supply the power supply from the DC 9V Power Adapter ( optional ). Insert the plug of
Power Adapter into " DC 9V Power Adapter Input Socket " (3-15). The meter will permanent power ON
when use the DC ADAPTER power supply ( The power Button function is disabled ).
11 Battery replacement
1) When the left corner of LCD display show "
", it is necessary to replace the battery. However, in
spec. measurement may still be made for several hours after low battery indicator appears before the
instrument become inaccurate.
2) Loose the screws of the " Battery Cover " (3-10) and take away the " Battery Cover " from the
Instrument and remove the battery.
3) Replace with DC 1.5 V battery ( UM3, AA, Alkaline/heavy duty ) x 6 PCs, and reinstate the cover.
4) Make sure the battery cover is secured after changing batteries.
12 System reset
If troubles arise such as :
CPU system is hold ( for example, the key button cannot be operated... )
then make the system RESET will fix the problem. The system RESET procedures will be either following
method :
During the power on, use a pin to press the " Reset Button " (3-16) once a while will reset the circuit
system.
13 RS-232 PC serial interface
The instrument has RS232 PC serial interface via a 3.5 mm terminal (3-17).
The data output is a 16 digit stream which can be utilized for user's specific application.
An RS-232 lead with the following connection will be required to link the instrument with the PC serial
port.
The 16 digits data stream will be displayed in the following format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
