User Guide

1110
CLEAR FUNCTION
Erase the memorized highest
and lowest measured values
by pressing the CLEAR key.
Upon depressing the CLEAR
key, the present measurement
reading is assigned as the high-
est and lowest temperature in
memory, i.e. both stored tem-
perature values are equal. The
"HI" and "LO" display indica-
tors will blink twice to notify
user that the clearing process
is in progress.
ALARM (HI 9053 and HI 9055 only)
During the start up the alarm is
disabled. It may be enabled or
disabled again by pressing the
ENABLE key. Both the high
and low set points are by de-
fault set at 25°C or 77°F, con-
forming to the model.
The alarm is triggered when the measured value
is greater than the high set point or lower than
the low set point. In such an instance, the
corresponding graphics indicator blinks ac-
companied by a sound.
The buzzer may be turned off by pressing any
key except the ON/OFF key (by pressing ON/
OFF the alarm is disactivated and the scale
changes).
Reactivation is possible by turning the alarm off
and on again, i.e. by pressing ENABLE key
(note that the set point values will not be affected
by this action).
To set the alarm limits, press
the SET key on the front panel.
CLEAR
HI
LO
ENABLE
SET
MEASURING SCALE - °C/°F (HI 9043 &
HI 9044 only)
The meter automatically defaults to the °C scale
when turned on.
Measurements can be per-
formed in either the Centigrade
or Fahrenheit scale. To change
the scale, press the °C/°F but-
ton once.
HOLD MODE
The reading hold function is
activated by the HOLD (HI 9043
and HI 9044) or MEM HOLD
(HI 9053 and HI 9055) key.
The measured temperature is
frozen on the display when this
key is pressed.
A blinking "M" on display indi-
cates the operation mode.
By pressing this key again, the
meter returns to its regular op-
eration mode.
HI / LO FUNCTION
The maximum and minimum temperatures are
monitored throughout a continuous measuring
process.
The values may be recalled or
cleared at any time during the
measurement.
Check the highest or lowest
measured temperature by
pressing the respective HI or
LO key button. The appropri-
ate display indicator, "HI" or
"LO", will be displayed to-
gether with the value retrieved
from memory. Release the key to resume the
normal operation.
°C
°F
HOLD
MEM
HOLD
M
HI LO
HI LO
HI