AEMC 6422 User Manual page 36

3.3.2 Resistance Measurement (2P)
Quantities of
influence
Temperature
Relative humidity
Supply voltage
50/60Hz voltage
superimposed on
the test voltage
3.3.3 Ground Measurement (3P)
Quantities of
influence
Temperature
Relative humidity
Supply voltage
Voltage in series
between S and
E, 50/60Hz
Voltage in series
between H and
E, 50/60Hz
Rod resistance
R
S
Rod resistance
R
H
36
Limits of the range
of use
14 to + 122 °F
(-10 to + 50 °C)
10 to 90% RH
Model 6422: 6.0 to 9.6V
Model 6424: 6.0 to 7.6V
0 to 3V
3 to 25V
Limits of the range
of use
14 to + 122 °F
(-10 to + 50 °C)
10 to 90% RH
Model 6422: 6.0 to 9.6V
Model 6424: 6.0 to 7.6V
0 to 3V
3 to 25V
0 to 3V
3 to 25V
0 to 50 kΩ
R < 100 x R
H
and R < 50kΩ
H
Variation of the measurement
Typical
± (25 ppm R +
10mΩ/°C)
± 1% R
± (0.5% R + 0.5Ω)
± (2% R + 5Ω)
Variation of the measurement
Typical
± 1% R
± (0.5% R + 0.2Ω)
± (2% R + 8Ω)
± (0.5% R + 0.2Ω)
± (20% R + 10Ω)
E
± (2% R + 2 ct)
Ground Tester Models 6422/6424
Maximum
± (200 ppm R +
2 mΩ/°C)
± 2% R
- ± (2% R + 1Ω)
± (2% R + 1Ω)
± (4% R + 10Ω)
Maximum
± 2% R
- ± 2% R
- ± (2% R + 1Ω)
± (1% R + 1Ω)
± (4% R + 20Ω)
± (1% R + 1Ω)
± (30% R + 20Ω)
- ± (2% R + 1Ω)
± (10% R + 5 ct)