Phoenix Contact TESTFOX M, Руководство по эксплуатации, Страница: 22 / 142

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- Operating temperature and relative air humidity:
For operating temperatures from 0 °C to 30 °C: relative air humidity less
than 80 %,
For operating temperatures from 31 °C to 40 °C: relative air humidity less
than 75 %,
For operating temperatures from 41 °C to 50 °C: relative air humidity less
than 45 %,
- Storage temperature: the teStFOX M/ M-1 can be stored at temperatures
between - 15 °C and + 60 °C (air humidity of 0 to 80 %). During storage, the
battery should be removed.
7. Electrical specifications
Note: The measuring accuracy is specified as the sum of:
- a relative part of the measured value and
- a number of digits (i.e. counting steps of the last digit).
this measuring accuracy applies for temperatures from 18 °C to 28 °C and a
relative air humidity less than 80 %.
7.1 DC voltage ranges
The input resistance is 10 MΩ.
Measuring
range
*3
Resolution Measuring accuracy
Overload
protection
200 mV 100 µV ± (0.5 % of the measured value + 2 digits) 1000 V
DC
2 V 1 mV ± (0.5 % of the measured value + 2 digits) 1000 V
DC
20 V 10 mV ± (0.5 % of the measured value + 2 digits) 1000 V
DC
200 V 100 mV ± (0.5 % of the measured value + 2 digits) 1000 V
DC
1000 V 1 V ± (0.5 % of the measured value + 2 digits) 1000 V
DC
7.2 AC voltage ranges
The input resistance is 10 MΩ in parallel 100 pF.
Measuring
range
*3
Resolution
Measuring accuracy * 1 within the
frequency range 50 Hz - 300 Hz
Overload
protection
200 mV 100 µV ± (2.0 % of the measured value + 5 digits) * 2 750 V
eff
2 V 1 mV ± (1.5 % of the measured value + 5 digits) * 2 750 V
eff
frequency range 50 Hz - 500 Hz
20 V 10 mV ± (1.5 % of the measured value + 5 digits) * 2 750 V
eff
200 V 100 mV ± (1.5 % of the measured value + 5 digits) * 2 750 V
eff
750 V 1 V ± (1.5 % of the measured value + 5 digits) * 2 750 V
eff
the measured value of the teStFOX M/ M-1 is obtained by mean value
rectification and is displayed as r.m.s. value.
*1
The measuring accuracy is specified for a sinusoidal curve. In case of non
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 %
*2
Applies to sinusoidal curves of 50 Hz/ 60 Hz
*3
For automatic range selection (AutO), the change-over point might be
already at a value of 1400!
7.3 DC current ranges ( teStFOX M-1)
Overload protection:
- 10 A (600 V) fuse, quick-acting, 50 kA, at the 10 A input ( teStFOX M-1),
Measuring
range
Resolution Measuring accuracy Voltage drop
2 A 1 mA ± (1.0 % of the measured value + 3 digits) max. 2 V
10 A
*2
10 mA ± (1.0 % of the measured value + 3 digits) max. 2 V
7.4 AC current ranges ( teStFOX M-1)
Overload protection:
- 10 A (600 V) fuse, quick-acting, 50 kA at the 10 A input ( teStFOX M-1),
Measuring range Resolution Measuring accuracy
*1
within the frequency
range 50 Hz - 500 Hz
Voltage drop
10/ 2008
TESTFOX M/ M–1