User Manual

7 Carrying out a measurement
13
Automatic measuring mode
1. Connect test leads: black test lead to COM jack, red test lead to A jack.
- The instrument is in AUTO A mode.
2. Connect test leads to the test object.
- The measured value is shown on the LC display.
Manual measuring mode
✓ Instrument is in AUTO A measuring mode.
1. Switch off automatic measuring mode: press [] <1 s.
2. Switch between A AC and A DC: press [] <1 s.
- The measured value is shown on the LC display.
Switch to automatic measuring mode: press [] >1 s.
- The instrument is in automatic measuring mode when AUTO is
illuminated on the LC display.
7.3.2. testo 760-2/-3
WARNING
Serious risk of injury to the user and/or destruction of the instrument
while measuring current.
> Measuring circuit must be de-energized.
If fuses blow, please eliminate the cause of this before changing
the fuse.
The measuring instrument may only be used in 16 A fused
electrical circuits up to a nominal voltage of 600 V (760-2) / 1000 V
(760-3). The nominal cross-section of the connection cable must
be taken into account in order to ensure safe connection (e.g. via
crocodile clips).
Strong interferences in the vicinity result in an unstable display and
measurement errors.
7.3.2.1. 10 A jack
✓ Instrument is switched on.
Automatic measuring mode
1. Connect test leads: black test lead to COM jack, red test lead to 10A
jack.
- The instrument is in AUTO 10A mode.
2. Connect test leads to the test object.
- The measured value is shown on the LC display.
Manual measuring mode
✓ Instrument is in AUTO 10A measuring mode.
1. Switch off automatic measuring mode: press [] <1 s.
2. Switch between A AC and A DC: press [] <1 s.
- The measured value is shown on the LC display.