Delta OHM HD2301.0, Руководство по эксплуатации, Страница: 6 / 28

HD2301
- 6 -
V1.7
DESCRIPTION OF THE FUNCTIONS
The keyboard of the thermohygrometer HD2301.0 is composed of double-function
keys. The function on the key is the "main function", while the one above the key is
the "secondary function".
When the instrument is in standard measurement mode, the main function is active.
In the menu, the secondary function is enabled; press the DATA+UNIT keys together
to open the menu.
The pressing of a key is accompanied by a short confirmation "beep": a longer "beep"
sounds if the wrong key is pressed. Each key specific function is described in detail
below.
This key has two functions:
•
ON/OFF: press this key to turn the instrument on and off.
The turning on enables all display segments for a few seconds, starts an Auto-test
including the detection of the probe connected to the input, and sets the instrument
ready for normal measurement.
MIN
cm
min
s
2
3
m
µ
m
k
>>>
• AUTO/OFF: the AutoPowerOff function can be disabled by simultaneously
pressing this key and the "HOLD" key when turning the instrument on.
During turning on, should no probes be connected, the "NO_PRBE_SER_NUM"
message is displayed in the line for symbols for a few seconds, and in the main line a
series of dashes appears while the "ERR" message replaces the temperature.
When the probe is inserted into a functioning instrument, the "NEW_PROB_DET"
(New probe detected) message appears: as the data are captured upon turning the
instrument on, it is necessary to turn it off and on again.
Caution! Replace the probes when the instrument is off.
ON-OFF and AUTO-OFF