5
HI93551
HI93551N
Keyboard Functions:
ON/OFF
: turn the meter ON and OFF.
HOLD
: freeze the reading on display.
°C/°F
: change reading unit (°C or °F).
KJT
: select the thermocouple type.
CLR
: clear the HI and LO values.
CAL
(
HI93551N
only) : press and hold for about 5 seconds to
enter the Calibration mode (with reading within ±3°C
range); press to abort the Calibration mode.