9
8
Check the highest or lowest measured tem-
perature by pressing the respective HI or
LO key. The appropriate display indicator,
"HI" or "LO", will light up together with the
value retrieved from memory.
Release the key to resume normal opera-
tion.
CLEAR HI-LO FUNCTION (HI 9057
only)
By pressing HI and LO simultaneously the
present measurement reading is assigned in
memory as the highest and lowest tempera-
ture reading, i.e. both "HI" and "LO" will
have equal temperature readings.
MEMORY FUNCTION (HI 9056 only)
The memory & hold function is activated by
MEM HOLD. The measured temperature is
stored in memory and frozen on the display
when this function key is pressed and held.
LO
°C
HI
°C
MEM
HOLD
To change the scale, press °C/°F once.
MEASUREMENT RESOLUTION
When switched on,
HI 9056
and
HI 9057
default to a 0.1
digit resolution (see specifi-
cations).
These instruments automatically change the
resolution to 1 degree when the measured
temperature is higher than 999.9°C.
In
HI 9056
, when the tem-
perature is lower than
999.9°C it is possible to
change the resolution by
pressing the 0.1/1 key.
HOLD MODE (HI 9057 only)
The reading hold function is activated by
the HOLD key.
To freeze the measured temperature on the
display, press and hold the HOLD key.
"HOLD" is displayed when this key is pressed.
As soon as the HOLD key is released, the
meter returns to normal operational mode.
HI-LO FUNCTION (HI 9057 only)
Maximum and minimum temperatures are
monitored throughout a continuous measur-
ing process.
The values may be recalled or cleared at
any time during the measurement.
°C
°F
°F
°C
HOLD
