11. Technical data
31
11.4 testo 177-T4
Parameter ......................................................Temperature (°C/°F)
Sensor ..........................................Type K, T and J thermocouples
Number of measuring channels................................4 x external
Measuring range Type K....................................-200 to +1000 °C
Measuring range Type T ......................................-200 to +400 °C
Measuring range Type J ......................................-100 to +750 °C
Accuracy Logger ..................................±0.3 °C (-100 to +70 °C)
..............................................±0.5% of reading (+70 to +1000 °C)
..............................................±1.5% of reading (-200 to -100,1 °C)
............................................................................................±1 digit
Resolution............................................................................0.1 °C
Measuring rate....................1 or 2 channels activated: 2 s to 24 h
............................................3 or 4 channels activated: 3 s to 24 h
............................................................................(freely selectable)
Storage temperature................................................-40 to +70 °C
Operating temperature ..............................................0 to +70 °C
Display ........................................................................LCD, 2 lines
Operating temperature/Display..................................0 to +65 °C
Memory capacity ................................................48,000 readings
Housing ..........................................................................ABS/TPE
Protection class ....................................................................IP 43
Dimensions in mm (lxwxh) ....................................103 x 64 x 33
Weight ....................................................................................129g
Battery ....................................................................Lithium (1 AA)
Battery life............................................................Typical: 5 years*
....(Measuring rate: 15 Min., Operating temperature: -10 to +50°C,
......................................Display: On, Status led (green LED): Off)
* See Chapter 11.6 Battery life, P. 33
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