Sper Scientific 800023 Thermometer 4 Channel - Manual (Page 7)

THERMOMETER
6
IV. Operation Instructions:
4.1 Power-Up & Turn ON/OFF backlight
The ○ I key turns the Thermometer ON or OFF and
backlight ON & OFF.
Press it once to turn on the Thermometer.
Press it again for moment to turn ON or OFF backlight.
Press and hold this button 3 second to turn OFF the
power.
4.2 Connection the Thermocouples
For measurement, plug the thermocouple into the input
connectors.
4.3 Selecting the Temperature Scale
When the meter was powered on, the user may change it
to Fahrenheit (°F) by pressing “ °C/°F ” button and vice
versa to Celsius.
4.4 Data-Hold Operation
The user may hold the present reading and keep it on the
display by pressing the “HOLD” button. When the held
data is no longer needed, one may release the data-hold
operation by pressing “HOLD” button again.
When the meter is under Data Hold operation, the “△
REL”,“MAX MIN”,“T1-T2” and “°C/°F” button are
disabled. (when you press “△REL”,“ °C/°F ”, “T1-T2”
and “MAX MIN” button in HOLD mode, there will be two
continuous beeps)
4.5 T1-T2 Operation:
When this button is pushed, “ 1 – 2 ” will be
shown on the upper right hand side LCD
display to indicate that the tester is under T1