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Gossen Metrawatt METRAHIT 14A Manual

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6 GOSSEN-METRAWATT
Influence quantities and variations
for 12S ... 16S, 14A
1) With temperature: Error data is per 10 K change in temperature.
With frequency: Error data is valid from a display of 300 digits.
2) With zero setting
3) With unknown waveform (crest factor CF > 2), the measurement must be made with manual range selection.
4) Except for sinusoidal waveform
5) From the time the symbol „ ” appears.
Influence quantities and variations
for 18S
1) With zero setting
2) With temperature: Error data is per 10 K change in temperature.
With frequency: Error data is valid from a display of 10 % of the measuring range.
3) With unknown waveform (crest factor CF > 2), the measurement must be made with manual range selection.
4) Except for sinusoidal waveform
5) From the time the symbol „ ” appears.
Influence quantity Influence range
Measured quantity/
measuring range
Variation
1)
±(... % of meas. val. +... digits)
12S ...14S 15S 16S
Temperature
0 °C ...
+21 °C
and
+25 °C ... +40 °C
30/300 mV 1.0 + 3 1.0+1
3 ... 300 V 0.15 + 1 0.1+1
1000 V 0.2 + 1 0.1+1
V 0.4+2 0.3+2
300 µA
2)
...
300 mA
0.5+1 0.15 + 1
3 A / 10 (16) A 0.5+1
A 0.75 + 1 0.75 + 3
30 Ω
2)
0,15 + 2
300 Ω 0.25 +2 0.15 + 2
3kΩ ... 3 MΩ 0.15 + 1 0.1+1
30 MΩ 1.0+1 0.6+1
30 nF
2)
... 3 µF — 0.5+2
30 µF — 2.0+2
Hz — 0.5 + 1
% — ± 5D
– 200 ... + 200 °C 0.5K+2
+ 200 ... + 850 °C 0.5+2
Frequency of
the measured
quantity
15 Hz ... < 30 Hz
3 ... 300 V
——1.0+3
30Hz...<45Hz ——0.5+3
> 65 Hz ... 400 Hz 2.0 + 3 0.5+3
> 400 Hz ... 1 kHz 2.0 + 3 1.0+3
> 1 kHz ... 20 kHz ——2.0 + 3
15 Hz ... < 30 Hz
1000 V
——1.0 + 3
30Hz...<45Hz ——0.5 + 3
> 65 Hz ... 1 kHz 3.0 + 3 2.0 + 3
15 Hz ... < 30 Hz
A
——1.0 + 3
30Hz...<45Hz ——0.5 + 3
> 65 Hz ... 1 kHz 2.0 + 3 3.0 + 3
Waveform of
the measured
quantity
3)
Crest
factor CF
1 ... 3
V
4)
, A
4)
——
± 1 %
of rdg.
> 3 ... 5 ——
± 3 %
of rdg.
Influence quantity Influence range
Measured quantity/
measuring range
Variation
12S ... 16S, 14A
Battery voltage
5)
... < 7.9 V
> 8.1 V... 10.0 V
V ± 2D
V ± 4D
A ± 4D
A ± 6D
30 Ω / 300 Ω / °C ± 4D
3kΩ ... 30 MΩ±3D
nF, µF ± 1D
Hz ± 1D
% ± 1D
Relative humidity
75 %
3 days
Meter off
V
A
Ω
F
Hz
%
°C
1x inherent deviation
DATA ± 1D
MIN / MAX V , A ± 2D
0
1
2
3
4
5
CF
0
500 V 1000 V
0
1
2
3
4
5
CF
0
1000
3000 D
2000
Voltage measurement
Current measurement
The permissible crest factor CF of the AC quantity to be measured is a function
of the displayed value:
Influence quantity Influence range
Measured quantity/
measuring range
1)
Variation
2)
±(... % of meas. val. +... digits)
Temperature
-10 °C ...
+21 °C
and
+25 °C ... +40 °C
V 0.05 + 3
V ,V 0.2+30
300 µA / 3 mA 0.2 + 3
30 mA 0.1 + 3
300 mA ... 10 A 0.2 + 3
300 µA ... 300 mA 0.3 + 30
3 A / 10 A 0.5 + 30
300 Ω 0.1 + 5
3kΩ ... 3 MΩ 0.1 + 3
30 MΩ 0.6+3
3 nF ... 3 µF 0.5+3
30 µF 2.0 + 3
Hz 0.1 + 3
– 200 ... + 100 °C 0.5 Kelvin + 2 D
+ 100 ... + 850 °C 0.5 + 2
Frequency of
the measured
quantity
15 Hz ... < 45 Hz
300 mV
1.0+20
> 65 Hz ... 200 Hz 1.0 + 20
15 Hz ... < 30 Hz
3 ... 300 V
1.0+20
30 Hz ... < 45 Hz 0.5 + 20
> 65 Hz ... 400 Hz 0.5 + 20
> 400 Hz ... 1 kHz 1.0 + 20
> 1 kHz ... 20 kHz 2.0 + 20
15 Hz ... < 30 Hz
1000 V
1.0 + 20
30 Hz ... < 45 Hz 0.5 + 20
> 65 Hz ... 1 kHz 2.0 + 20
15 Hz ... < 45 Hz
A
1.0 + 20
> 65 Hz ... 1 kHz 1.0 + 20
Waveform of
the measured
quantity
3)
Crest
factor CF
1 ... 3
V
4)
, A
4)
± 1 % of rdg.
> 3 ... 5 ± 3 % of of rdg.
Influence quantity Influence range
Measured quantity/
measuring range
1)
Variation
Battery voltage
5)
... < 7.9 V
> 8.1 V... 10.0 V
V ± 6D
V ± 30 D
A ± 10 D
A ± 30 D
Ω±10 D
3 nF ... 30 µF ± 5D
Hz ± 6D
°C ± 5D
Relative humidity
75%
3 days
Meter off
V, dB, A, Ω
F, Hz
°C
1x inherent deviation
DATA
V, dB, A, Ω, Hz ± 10 D
F ± 1D
MIN / MAX
V, dB, A, Ω, Hz ± 20 D
°C, F ± 2D
0
1
2
3
4
5
CF
0
500 V 1000 V
0
1
2
3
4
5
CF
0
10000 3000020000
Voltage measurement
Current measurement
The permissible crest factor CF of the AC quantity to be measured is a function
of the displayed value:
D
Analog-digital multimeters
METRA 12S ... 18S, 14A
… 6 …


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