Promax MD-200 Manuel page 27

AC/DC, Ω /LOΩ Selection Switch
[8]
Push the switch to measure AC Voltage or AC Current in the voltage or current mode
or to measure low power ohm in the resistance mode. Push it again to canceled.
[9] Hold Switch
This switch is used to hold measured value for all functions, and then "H"
annunciator is displayed. Conversions are made but the display is not updated.
[10] MEM (OFFSET) Switch
When the "-MEM" switch is pushed, the "-MEM" annuciator become active and the
last two significant digits are stored and subtracted from all the following input
conversions. Push "-MEM" switch again to canceled. The "-MEM" mode is also
canceled whenever the measurement type or range selection is changed. In
autorange operations if the following input signal cannot be converted on the same
range as the stored value, the "-MEM" mode is canceled. The "-MEM" annuciator is
turned off. The "-MEM" operation mode can be very useful in resistance
measurements when lead length resistance would cause measurement errors, and
can also be used to measure deviation on voltage or current measurement.
[11] Back light.
Press the back light yellow key to turn on or turn off the back light of the LCD
display alternately.
Rear Panel
[1] Power ON/OFF Switch
Push to "1" position to turn on the AC power supply. Push to "0" position to turn off
the AC power supply.
[2] Power Input
Input connector for power cord.
[3] Line Fuse
Provides protection for equipment malfunction or overload. (80mA /250V, FAST, 5 x
20 mm).
Page 10
Figure 2.- Rear Panel
USER'S MANUAL. MD-200
September 2002