Delton 850A, Руководство по эксплуатации

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3.8 Temperature Measurement
1) Connect the black test lead of the sensor to " COM " socket and
red test lead to the " V
ΩHz
" socket.
2)
Set the selector switch to desired “
℃/℉
”
position.
3) P
ress “
SELECT
” key to choose “ ℃
”
or
“
℉”
measurement.
4) Put the sensor probe into the temperature field under
measurement.
5) Read the result from the LCD panel.
6)Please use special probe for test high temperature.
3.9 Data Hold
On any range, press the
“
D.HOLD
” key to lock display value, and
the
“
HOLD
” sign will appear on the display, press it again to exit.
3.10 MAX/MIN
Press the
“
MIN/MAX
” key to lock
MAX or MIN value, and the
“
MAX
” or “
MIN
” sign will appear on the display, press it over 2
seconds to exit.
3.11 Back Light
On any range, press the
“
D.HOLD
” key over 2 seconds to light the
back light, press it again for more than 2 seconds to wink the light.
The light can wink automatically after 10 seconds too.
3.12 Relative measurement
Press the
“
REL
△ ” key, you can measure the relative value and
“ △ ” sign will appears on the display, the auto range mode be
changed to manual range mode. Press it again to exit relative
measurement and
“ △ ” sign disappears, but you can not go back to
auto range mode. This function can be used to zero the reading on
DCA range. This function is non effective on Hz/DUTY
measurement.
4. Battery replacement
1) When the battery voltage drop below proper operation range,
the “ ” symbol will appear on the LCD display and the battery
need to changed.