CONTINUITY
Measuring Range:
0,01Ω to 99,9Ω
(0 to 10Ω on analogue scale)
EN61557 Operating range: 0,10Ω to 99,9Ω
Accuracy: ±2%
±2
digits
Open circuit voltage:
5V ±1V
Test current:
210mA ±10mA (0-2Ω)
Zero offset at probe tips: 0,10Ω typical
Lead resistance zeroing:
Up to 9,99Ω
Noise rejection:
1V rms 50/60Hz
Buzzer:
Operates at less than 5Ω (approx).
RESISTANCE
Measuring Range:
0,01kΩ to 9,99MΩ
(0 to 100MΩ on analogue scale)
Accuracy:
±3% ±2 digits
Open circuit voltage:
5V ±1V
Short circuit current:
25µA ±5µA
VOLTAGE
Measuring Range:
±1V to ±500V
(0 to 1000V on analogue scale)
Accuracy: 0 to 500V d.c. ±2% ±3 digit
0 to 500V a.c (50/60Hz) ±2% ±3 digits
0-500V 400Hz a.c. ± 5% ±3 digits
MILLIVOLTS
Measuring Range:
±0,1mV to ±1999mV
(0 to 1000mV on analogue scale)
Accuracy: 0,1mV to 10mV d.c. or a.c. (50/60Hz) ±2% ±5 digits
10mV to 1999mV d.c. or a.c. (50/60 Hz) ±2% ±3 digits
0,1mV to 10mV a.c. (16-460 Hz) ±5% ±7 digits
10mV to 1999mV a.c. (16-460 Hz) ±5% ±5 digits
d.c. milliVolts zeroing:
Up to 9,9mV
Input resistance:
>3MΩ
CAPACITANCE
Measuring Range:
0,1nF to 9,99uF
Accuracy:
±3% ±2digits ± 0,2nF
uF zeroing:
up to 10nF
Basic and service errors for Insulation and Resistance ranges
The basic error is the maximum inaccuracy of the instrument
under ideal conditions, whereas the service error is the
maximum inaccuracy taking into effect of battery voltage,
temperature, interference, and system voltage and frequency,
where applicable. After determining the service error, we can
then calculate the measurement range. This is the range of
measurement over which the error in service is less than 30%
of the reading. Digital instruments are affected by the number
of digits error – for example a value 0,10Ω measured with the
continuity range may give a display in the range 0,07Ω to
0,13Ω which is a maximum error of 30%. Therefore the
measurement range measuring low resistance is 0,10Ω to
99,9Ω. When checking that a measurement does not exceed a
limit, the service error needs to be taken into account and
