Table Of Contents; Contents - TESTO 770 Instruction Manual

1 Contents

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. Rotary switch functions .................................... 8
5.5. Further functions .............................................. 9
5.6. Explanation of icons ....................................... 10
6 Operating the instrument .......................................... 10
6.1. Switching the instrument on ........................... 11
6.2. Switching the background illumination on/off . 11
6.3. Switching the instrument off
(automatically/manually) ....................................... 11
6.4. Using testo 770-3 with
testo Smart Probes App ................................. 11
6.4.1. Establishing Bluetooth
6.4.2. Transmitting readings ........................................... 12
6.4.3. Overview of the App operating controls ................ 12
7 Carrying out a measurement ..................................... 12
7.1. Preparing for measurement ........................... 12
7.2. Current measurement .................................... 13
7.2.1. Measuring A AC or A DC ...................................... 13
7.2.2. Measuring µA AC or µA DC (testo 770/-2/-3 only) 13
7.3. Voltage measurement .................................... 14
7.4. Measuring resistance, capacitance,
continuity and diode test ................................ 15
7.4.1. testo 770-1/-2 ....................................................... 15
7.4.2. testo 770-3 ............................................................ 15
7.5. Power measurement (testo 770-3 only) ......... 16
7.6. Frequency measurement ............................... 16
7.7. Temperature measurement (optional)
(testo 770-2/-3 only) ....................................... 16
7.8. Inrush current (INRUSH) ................................ 17
2
®
connection (770-3) .......... 11