Testo 770-3 - TESTO 770 Instruction Manual

Feature
Temperature with
adapter (testo 770-
8
2)
Figures correspond to +23 °C ± 5 °C at <80% rel. humidity. Temperature
coefficient: 0.15 x specified accuracy per 1 °C (<18 °C and >28 °C)

9.2.2. testo 770-3

Feature
DC voltage
10 11 12
AC voltage , ,
DC current
- jaws [A]
- jack [μA]
7
Maximum measurement duration is 15 s
8
Does not include the measurement error of the temperature probe. The
specified accuracy is the sum total of the measurement errors of the
thermocouple adapter and the testo 770.
9
The lower measuring ranges are only specified from 5% (does not apply
to DC current / AC current measurements with the current probe)
10
Signal bandwidth 40 Hz to 1 kHz
11
In the case of a mixed signal (AC + DC), only the purely AC component
is taken into account
12
As the frequency increases (over 400 Hz), the accuracy deteriorates
+/- (1.5% of m.v. + 3 digits) for 400Hz to 750Hz / +/- (2.0% of m.v. + 3digits)
for 750Hz to 1kHz
Measuring Resolution Accuracy
1
range
512.0 nF
5.120 µF
51.20 µF
100.0 µF (15
7
s)
-20 to 500 °C
Measuring Resolution Accuracy
9
range
600 mV 0.1 mV
6.000 V 1 mV
60.00 V 10 mV
600.0 V 100 mV
600 mV 0.1 mV
6.000 V 1 mV
60.00 V 10 mV
600.0 V 100 mV
600 A 0.1 A
600 μA 1 μA
0.01 nF ± (1.5% of meas. val. +
5 digits)
0.001 µF ± (1.5% of meas. val. +
5 digits)
0.01 µF ± 10% typically
0.1 µF ± 10% typically
0.2 °C -20 to 0 °C: +/- 2 °C
0 °C to 100 °C: +/- 1 °C
100 °C to 250 °C: +/-
1.5%
>250 °C: +/-2%
± (0.8% of meas. val. +
3 digits)
± (1.0% of meas. val. +
3 digits)
± (2.0% of meas. val. +
5 digits)
± (1.5% of meas. val. +
5 digits)
9 Technical data
21