5 Overview
9
Selection
Function
RCDC
control
Automatic mode for resistance, continuity, capacitance and
diode test. Manual selection of AC/DC with
[
]
.
testo 770-3
only
Activates the mode for power measurement. Manual selection
of active, reactive and apparent power, as well as power
measurement for direct current/voltage with
[
]
.
testo 770-2/-
3 only
Automatic mode for µA measurement. Manual selection of
AC/DC with
[
]
.
5.5.
Further functions
Bluetooth
®
(testo 770-3 only)
> Enable
Bluetooth
®
: press and hold down
[
]
and turn the rotary
switch from
[OFF]
to a function. Then release
[
]
.
> Disable
Bluetooth
®
: turn rotary switch to
[OFF]
.
HOLD
>
Activate function: press
[HOLD]
<1 s.
-
the current reading is recorded and
HOLD
is shown on the LC display.
>
Exit function: press
[HOLD]
<1 s.
-
the current measurement is displayed.
The Hold function can be used from all measuring modes.
MAX/MIN/AVG
[
]
allows for switching between maximum, minimum and the periodic
display of AVG values.
This function is disabled in the default setting.
>
Activate function: press
[
]
<1 s.
-
Max value is displayed.
>
Display min value and periodic display of AVG values:
press
[
]
<1 s each time.
>
Exit function: press
[
]
>2 s or
[HOLD]
.
This function can be activated in all measuring modes (t
his
function is not available at capacitance measurement with testo
770-1 and testo 770-2)
.
When pressing
[
]
in
AUTO AC/DC
voltage mode or
AUTO
AC/DC
current measurement mode, the instrument retains the
last-selected AC/DC setting. In all other operating states, you
can select what you need by briefly pressing the
[
]
key or
via the rotary switch itself:
•
Voltage measurement and measurement with a
thermocouple adapter: select
