HT instruments HT8100 - Manual (Page 19)

HT8100
EN - 18
4.4.8. Simulation of a transducer
CAUTION
In this mode, the instrument provides an adjustable output current up to
24mADC. It is necessary to provide an external power supply with voltage
between 6V and 48VDC in order to adjust current.
Fig. 9: Use of the instrument for simulating a transducer
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 mA and the black cable into input lead COM. 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 potential
of the external source and positive potential of the external measuring device (e.g.:
multimeter – see Fig. 9)
6. Turn the rotary switch to exit the function and stop generation. Remove the cable from
lead mA before turning the rotary switch.