Iso-Tech IDM101, Instruction Manual

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By pressing the "Hold" button in the MIN/MAX mode you can stop the measurements from being recorded and by pressing it
again you can allow their recording to continue. If you stop the recording, the current measurement shown is held and the
bargraph display frozen.
In the MIN.MAX mode, the minimum or maximum value is shown on the digital display while the bargraph display continues to
show the normal measurements.
9. Relative button (REL)— Pressing the "REL" button causes REL to appear on the display and activates the relative mode.
When you do this, the value shown on the display is stored as a reference value and the display is
reset to zero. To exit the relative mode, hold the "REL" button pressed for two seconds.
In the relative mode, the value displayed is the difference between the reference value held in store
and the value currently measured, e.g. if the reference value is 0.04
Ω
and the value currently
measured is 15.05
Ω
, what appears on the display is 15.01
Ω
.
10. HOLD button — Except in the MIN/MAX mode, this button is used to switch the data hold mode on and off. When the hold
mode is on, "
>
" appears on the display and the measurement shown is held until the hold button is
pressed again. The internal sounder will operate when the hold mode is switched on.
If the MIN/MAX button is pressed while the hold mode is on, the meter exits the hold mode and goes over
to the MIN/MAX mode.
If the hold button is pressed while the MIN/MAX mode is on, storage of the minimum or maximum values is
stopped, and it resumes again if the hold button is pressed for a second time.
During the hold mode the automatic power off is disabled.
11. Power reset button (PWR RST) — If the meter has switched itself off automatically, it can be switched back on by pressing
this button.
12. Manual range button — This button is used to select manual range setting and to change ranges. If the button is pressed
once, the "

" annunciator on the display disappears. By pressing the button repeatedly, the
meter can then be set to the desired range. To revert to autoranging, hold the button pressed for
two seconds.