9
»position M«
RF-T 32 for air humidity measurements,
RF-T 36 for air humidity measurements,
IR 40 for surface temperature measurements with infrared
sensor,
»position 200°«
for temperature measurements up to 200 °C with elec -
trodes RF-T 28, RF-T 31, RF-T 32, RF-T 36 and
temperature probes PT 100,
»position 600°«
for temperature measurements up to 600 °C using pro bes
PT 100,
»position Batt«
for battery check.
(5) Measuring Key ON/OFF
Battery Check
Set selector switch (4) to position »Batt« and press measuring key (5). The reading displayed
should be higher than 7.5 digits. If it is 7.5 digits or lower, the battery is exhausted and should be
replaced or recharged if a rechargeable battery is being used. The cover of the battery
compartment can be lifted by means of a coin inserted into the slot.
It is recommendable to replace or recharge the battery once the reading of the battery check is
below 8 digits.
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