Contents ........................................................................................................................................... 2
Foreword ........................................................................................................................................... 3
Initial operation .................................................................................................................................. 4
First measurement ............................................................................................................................. 5
Overview of controls ....................................................................................................................... 8-9
1. Current measurement.................................................................................................................. 10
3. Location selection ....................................................................................................................... 14
4. Parameter settings ................................................................................................................. 15-17
5. Memory settings ..................................................................................................................... 18-21
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The software and software structure included in the product testo 445/645 are protected by
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-Display .......................................................................................................................................... 7
Saving, printing .................................................................................................................... 10
Freezing readings .................................................................................................................. 11
Maximum readings ................................................................................................................ 11
Minimum readings ................................................................................................................. 11
Timed mean calculation ........................................................................................................ 13
Adjusting humidity probes ..................................................................................................... 16
2
Overview ............................................................................................................................... 18
Manual saving ....................................................................................................................... 19
Automatic saving ................................................................................................................... 19
Clearing memory contents .................................................................................................... 21
According to the conformity certificate, the instruments fulfill 2014/30/EC
1999 Copyright Testo GmbH & Co.
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