Iso-Tech IDM 97 Manuel D'instructions page 6

9. Hold button — This button is used to freeze a measurement on the display. When it is pressed, "HOLD" appears
on the display. Measurements continue to be converted but the display is not updated.
10. "Delay hold" button — This button is used to delay the freezing of measurements. The "HOLD" annunciator
does not appear until about six seconds after the button is pressed. To switch off the Hold function, either press
the Hold button or else the Delay Hold button. In the latter case the annunciator will disappear from the display
after a six second delay. While "HOLD" is showing, the conversion of the measurements continues but the
display is not updated.
When the Hold button is pressed the internal sounder operates, and when the Delay Hold button is pressed it
will operate after a six second delay.
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