Phoenix Contact TESTFOX M Instrucciones De Servicio página 23

2 A
10 A
*2
The measured value is obtained by mean value rectification and is displayed
as r.m.s. value.
The measuring accuracy is specified for a sinusoidal curve. In case of non
*1
sinusoidal curves, the accuracy of the displayed value decreases. thus, an
additional error results for the following crest factors:
Crest factor from 1.4 to 3.0 additional error ± 1.5 %
Crest factor from 3.0 to 4.0 additional error ± 3 %
The maximum permissible operating time is limited from current value ≥ 7 A.
*2
measuring value
10 A
9 A
8 A
7 A
7.5 Resistance measuring range
Overload protection for resistance measurements: 600 V
Measuring
range
*3
200 Ω
2 kΩ
20 kΩ
200 kΩ
2 MΩ
20 MΩ
For automatic range selection (AutO), the change-over point might be
*3
already at a value of 1400!
7.6 Diode and continuity test
the stated measuring accuracy is applies to a range between 0.4 V and 0.8 V.
Overload protection for diode tests: 600 V
The integrated buzzer sounds at a resistance R lower than 25 Ω.
Measuring Reso-
range lution
10 mV
7.7 Capacity ranges ( teStFOX M-1)
Conditions: Discharge capacitors and apply them according to the specified
polarity.
Overload protection for capacity measurements: 600 V
Measuring range
2 nF
20 nF
200 nF
2 µF
20 µF
200 µF
2 mF
< 10 digits in case of fluctuating indication
7.8 Frequency ranges ( teStFOX M-1)
Overload protection for frequency measurements: 600 V
Minimum pulse width > 25 ns; operating cycle limitation > 30 % and < 70 %
Measuring
Resolution
range
2 kHz 1 Hz
10/ 2008
1 mA ± (1.5 % of the measured value + 5 digits)
10 mA ± (1.5 % of the measured value + 5 digits)
max. measuring time
Resolution
0.1 Ω ± (0.7 % of the measured value + 3 digits)
1 Ω ± (0.7 % of the measured value + 3 digits)
10 Ω ± (0.7 % of the measured value + 3 digits)
100 Ω ± (0.7 % of the measured value + 3 digits)
1 kΩ ± (1.0 % of the measured value + 3 digits)
10 kΩ ± (1.5 % of the measured value + 3 digits)
Measuring accuracy
± (1.5 % of the measured value + 5 digits)
Resolution
1 pF
10 pF
100 pF
1 nF
10 nF
100 nF
1 µF
Measuring accuracy for 5 V
± (0.01 % of the measured value + 1 digits)
TESTFOX M/ M–1
4 min.
5 min.
7 min.
10 min.
Measuring accuracy
eff
Measuring accuracy
± (1.9 % of the measured value + 8 digits)
± (1.9 % of the measured value + 8 digits)
± (1.9 % of the measured value + 8 digits)
± (1.9 % of the measured value + 8 digits)
± (1.9 % of the measured value + 8 digits)
± (1.9 % of the measured value + 8 digits)
± (1.9 % of the measured value + 8 digits)
eff
max. 2 V
max. 2 V
min. pause time
10 min.
10 min.
10 min.
10 min.
eff
Max. open-circuit
voltage
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
Max. measuring Max. open-
current circuit voltage
1.5 mA
eff
eff
max. Sensitivity
> 1.5 < 5 V

2.0 V
eff
15