User Guide

8
OPERATIONAL GUIDE
To switch the instrument ON, press the ON/OFF key.
The thermometer will carry out a self diagnostic test routine, the LCD
will show all segments for a few seconds (or as long as ON/OFF is
held), followed by the percentage indication of the remaining battery
life.
The thermometer then enters normal measurement mode.
If a temperature probe is plugged in, the meter displays the
measured temperature.
If no probe is plugged in, or if the reading is
over-range, the display shows flashing dashes.
If a measurement is slightly over the range
of the meter specifications, the display will
flash the closest full-scale value.
To switch the meter OFF, press the ON/OFF key.
°C/°F SELECTION
Measurements can be displayed in either degrees Celsius or Fahren-
heit. The meter is factory set to °C scale; to change the scale, press
°C/°F key or (ALT+) °C/°F keys,
or set the switch located in the battery compartment (HI 935002 only,
see figure on page 10).
HOLD and MR FUNCTIONS
The HOLD function is activated by pressing
the HOLD key.
The measured temperature is held on the
display until HOLD is pressed again. The
"HOLD" tag blinks on the display while in
HI 935009
HI 935005 / 5005N