HT instruments HT8000 - Manual (Page 10)

HT8000
EN - 9
4.3.3. DC current measurement
CAUTION
Maximum input for DC current is 24mA. Do not attempt to take any current
measurement exceeding such limit to avoid the risk of electrical shock and
damages to the instrument
Fig. 4: DC current measurement
1. Switch OFF the circuit under test
2. Press INPUT/OUTPUT key and select the measurement mode. The “INPUT” symbol is
displayed
3. Press mA/% key and select the desired measurement unit. The symbol “mA” or “mA%”
is displayed
4. Insert the red plug into mA jack and the black plug into COM jack
5. Connect red and black plugs in series with the circuit under test respecting the polarity
and current flow (see Fig. 4).
6. Power the circuit under test. The current value will be displayed
7. The message "O.L" means that the current exceeds the measuring limits. The symbol
"-O.L" on the display means that current has opposite direction than shown in Fig. 4