User Manual

1 Contents
2
1 Contents
1 Contents ........................................................................ 2
2 Observe prior to use! ................................................... 4
3 Safety instructions ....................................................... 4
4 Intended use ................................................................. 5
5 Overview ....................................................................... 6
5.1. Display and control elements ........................... 6
5.2. LC display ........................................................ 7
5.3. Control key functions ........................................ 8
5.4. Further functions .............................................. 9
5.5. Explanation of icons ......................................... 9
6 Operating the instrument .......................................... 10
6.1. Switching the instrument on ........................... 10
6.2. Switching the background illumination on/off . 10
6.3. Switching the instrument off
(automatically/manually) ....................................... 11
7 Carrying out a measurement ..................................... 11
7.1. Preparing for measurement ........................... 11
7.2. Voltage measurement .................................... 12
7.3. Current measurement .................................... 12
7.3.1. testo 760-1 ............................................................ 12
7.3.2. testo 760-2/-3 ....................................................... 13
7.3.2.1. 10 A jack ............................................... 13
7.3.2.2. µA/mA jack ........................................... 14
7.3.3. Clamp meter adapter option (0590 0003) ............. 14
7.4. Measuring resistance, capacitance,
continuity and diode test ....................................... 15
7.4.1. testo 760-1 ............................................................ 15
7.4.2. testo 760-2/-3 ....................................................... 15
7.5. Frequency measurement (testo 760-1) .......... 16
7.6. Frequency measurement/duty cycle
(testo 760-2/-3) ..................................................... 16
7.7. Temperature measurement (optional) ............ 16