HT instruments HT8100 - Manual (Page 18)

HT8100
EN - 17
4.4.7. DC current generation
CAUTION
The maximum output DC current generated by the instrument is 24mA with
internal battery voltage > 4.5VDC.
Fig. 8: Use of the instrument for DC current generation
1. Switch on the instrument by pressing and holding the RANGE key to select the
measuring range 0-20mA or 4-20mA.
2. Select the position mA in case of programmable DC current generation or position
mA for DC current generation with automatic ramp.
3. Use the 4-arrow selector on the front panel to select the options “%STEP”, “100%”,
“50%”, “0%” or “END” flashing on the display and confirm with the ENTER key in case
of selectable current generation, or press the MODE key to select the ramp type (see
§ 4.3.7)
4. Insert the red cable into input lead A and the black cable into input lead mA . The
instrument automatically generates the output current considering the selected options.
Press the A-HOLD key to suspend/restore the generation
5. Position the red lead and the black lead respectively in the points with positive and
negative potential of the passive external device which must be supplied (see Fig. 8)
6. Turn the rotary switch to exit the function and stop generation. Remove the cable from
lead A before turning the rotary switch.