Textron Greenlee GT-220 Manuel D'instructions page 14

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Accuracy
Refer to "Specifications" for operating conditions and temperature
coefficient.
Accuracy is specified as follows: ± (a percentage of the reading + a fixed
amount) at 23 °C ± 5 °C (73 °F ± 9 °F), less than 75% relative humidity.
DCV (Auto V•Ω low impedance mode)
Range
6.000 V
60.00 V
600.0 V
1000 V
Input impedance: Initial 4.2 kΩ // 90 pF
Auto Check trigger lever: > +1.5 V typical; < –1.0 V typical
ACV (Auto V•Ω low impedance mode)
Range
6.000 V
60.00 V
600.0 V
1000 V
Input impedance: Initial 4.2 kΩ // 90 pF typical
Auto Check trigger lever: > 2.0 V (50/60 Hz) typical
Resistance (Auto V•Ω mode)
Range
6.000 kΩ
60.00 kΩ
600.0 kΩ
6.000 MΩ
* ± (0.9% + 0.024 kΩ) below 1.200 kΩ
Specification not guaranteed during first 2 minutes after measuring
voltages > 50 V.
Open circuit voltage: 0.4 Vdc typical
14
Accuracy GT-220
± (1.3% + 0.002 V)
± (1.3% + 0.01 V)
± (1.2% + 0.4 V)
± (1.5% + 8 V)
Accuracy GT-220
± (2.5% + 0.003 V)
± (2.5% + 0.03 V)
± (2.5% + 0.6 V)
± (2.8% + 8 V)
Accuracy GT-220
± (0.9% + 0.004 kΩ)*
± (0.9% + 0.04 kΩ)
± (0.9% + 0.1 kΩ)
± (1.2% + 0.004 MΩ)
Accuracy GT-540
± (0.8% + 0.002 V)
± (0.8% + 0.01 V)
± (1.2% + 0.4 V)
± (1.5% + 8 V)
Accuracy GT-540
± (1.5% + 0.003 V)
± (1.5% + 0.03 V)
± (2.0% + 0.6 V)
± (2.8% + 8 V)
Accuracy GT-540
± (0.9% + 0.004 kΩ)*
± (0.9% + 0.04 kΩ)
± (0.9% + 0.1 kΩ)
± (1.2% + 0.004 MΩ)