Characteristic Values - Gossen MetraWatt GEOHM C Manual De Instrucciones

7

Characteristic Values

Meas.
Display range Measuring Range
Qty.
0.01 ... 20 Ω 1.0 ... 20 Ω
0.1 ... 200 Ω 5 ... 200 Ω
1 Ω ... 2 kΩ 50 Ω ... 2 kΩ
R
E
10 Ω ... 20 kΩ 500 Ω ... 20 kΩ
10 Ω ... 50 kΩ 500 Ω ... 50 kΩ
1.0 ... 99.9 V
2)
U
100 ... 250 V
10 ... 250 V
0 ... 99.9 V
3)
U~
100 ... 300 V
15 ... 99.9 Hz
3)
f 45 ... 200 Hz
100 ... 400 Hz
1)
Manual measuring range selection only, for resistance measurements see chapter 5.7
2)
as from software version AD
3)
For sinusoidal measured quantities only
Output Voltage max. 50 V
Reference Conditions
23 °C ±2 K
Ambient Temperature
40% ... 60%
Relative Humidity
5.5 V ±1%
Battery Voltage
50 Hz ±0.2 Hz
Line Frequency
Line Voltage Waveshape sine (deviation between effective and rectified
value < 1%)
Nominal Conditions of Use
Series Mode Interference Voltage < 3 V AC DC
Additional Error due to Probe and
Aux. Earth Electrode Resistance < 5% pf (R
Max. Probe Resistance < 70 kΩ
Max. Auxiliary Earth
Electrode Resistance < 50 kΩ
Max. Earth and Auxiliary
≤ 50 kΩ, see graph R
Earth Electrode Resistance
GMC-I Messtechnik GmbH
Impedance, Intrinsic Measuring
Test Current Uncertainty Uncertainty
±(10% rdg. + 6d)
10 mA
±(10% rdg. + 6d)
1 mA
±(3%rdg.+6d) ±(10% rdg. + 6d)
100 μA
±(10% rdg. + 6d)
100 μA
1) ±(16% rdg. + 10d)
100 μA
±(2%rdg.+2d) ±(4% rdg. + 3d)
500 kΩ
±(0.1%rdg.+1d) ±(0.2% rdg. + 1d)
500 kΩ
at 128 Hz ±0.5 Hz
TRMS
+R +R )
E H S
as a function of R
E
50
25
0.5
0.5 25
Ambient Conditions
Nominal Range of Use
Operating Temperature
Storage Temperature
Relative Humidity
Elevation
Power Supply
Batteries
Battery Voltage
Battery Service Life
Rechargeable Batteries NiCd or NiMH
Battery Charger
(not included)
Charging Voltage / Time 9 V / approx. 14 hours
Due to their reduced charging capacity, fewer measurements can be per-
H formed with rechargeable batteries than with normal batteries as a rule.
50 R [kΩ]
H
0 °C ... +40 °C
–10 °C ... +50 °C
–20 °C ... +60 °C (without batteries)
max. 75%, no condensation allowed
to 2000 m
4 ea. 1.5 V baby cell (4 x C-size)
(alkaline manganese per IEC LR14)
4.6 ... 6.5 V
30 hours or 1000 measurements at R
(with 10 s on-time and automatic device shutdown after each
measurement, without display illumination)
NA102 (article no. Z501N),
3.5 mm jack plug
E
29