Sper Scientific 800024 Thermometer 4 Channel Datalogger - Manual (Page 5)

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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 “MAX MIN”,“T1-T2” and “°C/°F” button are
disabled. (when you press “ °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
minus T2 mode. The temperature difference is shown on the right
hand side display as shown in Fig.
4.6 Record and Erase memory Operation:
When one presses the "REC" button, the meter will start recording, and
pressing the "REC" button again will stop recording, If you want to clear the
memory, power off the meter, then press and hold “REC” button and then press
power button and hold at least 5 seconds, then LCD will show "CLR" “SURE 5”,
then release all buttons to clear the memory.
4.7 Clock Setup :
1: press and hold “T1-T2” button and then power on the meter:
2: press “HOLD”(clock):
3: press "REC"
• or "°C/°F" • to increase or decrease number,
press “HOLD”(clock) to adjust next item. The adjusting order is
year
• month • day • hour • minute, then press “HOLD” (clock) to finish
adjusting. If you want abort during a setup process, press power
button to cancel.
4.8 Recording Interval Setup :
1: press and hold “T1-T2” button and then power on the meter:
2: press “MAXMIN"(INTV)