Wohler DT 310 Bedienungsanleitung Seite 13

3.2.3 CHANNEL key
Press the CHANNEL key to view the T2-temperature in the primary
screen (see figure 3.1). The T1-temperature will then toggle to the
secondary screen. Press once again, so that the temperature diffe-
rence T1-T2 will appear in the primary screen and the secondary
screen will toggle from T1 to T2. Press the CHANNEL key once a-
gain to return to the initial screen.
3.2.4 BACKLIGHT key
Press the BACKLIGHT key momentarily and the backlight illuminates
for approximately 30 seconds the display.
3.2.5 °C/°F key
Press this key momentarily and the unit toggles between Fahrenheit
and Celsius temperatures.
3.2.6 REC key
Press this key momentarily and the relative clock starts in the lower
right screen. All button functions are locked out except POWER and
BACKLIGHT. Press momentarily again and the unit cycles through
MAX and MIN (maximum and minimum recorded temperatures) and
back to the current temperatures. Press and hold the REC key for
three seconds to turn off the record function
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Wöhler DT 310
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