Measuring Resistance, Capacitance, Continuity And Diode Test; Testo 770-1/-2; Testo 770-3 - TESTO 770 Instruction Manual

7.4. Measuring resistance, capacitance,
continuity and diode test
WARNING
Serious risk of injury to the user and/or destruction of the instrument
during resistance testing.
> Test object must be de-energized.
External voltages will distort the measurement result.

7.4.1. testo 770-1/-2

Manual measuring mode
1. Switch instrument on: set rotary switch to
- The instrument is switched on.
2. Connect test leads: black test lead to black jack, red test lead to red
jack. Then connect test leads to the test object.
- The instrument is in
3. Switch between resistance, capacitance, continuity and diode test:
press [
- The measured value is shown on the LC display.

7.4.2. testo 770-3

Automatic measuring mode
Automatic detection for resistance/capacitance in the following
range:
• 0.0 ohms to 6.000 mohms
• 0.500 nF to 600.0 µF
Change to manual measuring mode for the remaining measuring
range.
1. Switch instrument on: set rotary switch to
- The instrument is switched on.
2. Connect test leads: black test lead to black jack, red test lead to red
jack. Then connect test leads to the test object.
- The instrument is in
- The instrument detects resistance, continuity, diode and capacitance
and automatically adjusts the measuring range.
- The measured value is shown on the LC display.
Manual measuring mode
3. Disable AUTO RCDC
4. Switch between resistance, capacitance, continuity and diode test:
press [
- The measured value is shown on the LC display.
> Switch back to
Ω measuring mode.
] <1 s.
AUTO RCDC
measuring mode: press
] <1 s.
AUTO mode: press
7 Carrying out a measurement
.
.
measuring mode.
[
[ ] >2 s.
] <1 s.
15