Automatic power-off - The default value is 5 mins if no operation which is adjustable.
Preheating time - 10min
Closed – case calibration No internal adjustments needed
Battery access door - Battery or fuse replaceable without voiding calibration
Measurement - 180(L)×90(W)×47(D)mm
Weight - about 500g
Calibration period - one year
4.3. Detailed accuracy indicator
Accuracy is specified for a period of one year after calibration, at 23±5ºC, with relative humidity to 75 %. Accuracy
specifications are given as: ± ( [ % of reading ] + [ number of least significant digits ] ) (note: “number of least significant
digits” means the digits increased or decreased in least significant digits).
Measuring part - Range - Frequency - Accuracy - Remark
DC voltage - 50V - 10mV - 0.5%+4 - • Measuring impedance 10 MΩ (standard value)
• Common mode restrain: 50Hz or 60Hz > 100Db
• String mode restrain:50Hz or 60Hz > 45dB
• Overload protection: 600V (peak –peak value)
AC voltage - 500V - 100mV - 0.5%+20 ( 45Hz~100Hz )/2%+20 ( 100Hz~400Hz )
- • frequency beeps: 45Hz~400Hz
• Adaptive to range from 10% to 100%
• AC conversion: mean value
• Measuring impedence:10 MΩ (standard value)<100pF
• Common mode restrain: 50Hz or 60Hz > 100Db
• Overload protection: 600V(peak –peak value)
Ohm - 5kΩ - 0.001kΩ - 0.5%+4 - • open-circuit voltage: <5V;
• short-circuit current: about 0.1mA.
• leads resistance excluded in the accuracy;
• overload protection: 600V
continuity - 500Ω - 0.1Ω - Short-circuit beep is about 20Ω
• open-circuit voltage: <5V
• short-circuit current: about 0.1mA.
• overload protection: 600V(peak –peak value)
diode - 2V - 0.001V - 1%+20
DC current - 20mA - 0.001mA - 0.2%+4
• overload protection: 63mA/250V fast-melt protection;
• loaded voltage: about 18mV/mA
