Velleman DVM830L, Руководство пользователя, Страница: 6 / 34

DVM830L
05.05.2010 6 ©Velleman nv
4. Specifications
Maximum accuracy is guaranteed for a one-year period after calibration. Ideal
circumstances require a temperature of 23°C (
±
5%) and a max. relative
humidity of 75%.
4.1. General
Max. voltage between
terminal and earth 500VDC or VAC rms (sine wave)
Display 3 ½-digit LCD, 2 - 3 readings per sec.
Fuse Protection 200mA range : F 0.5A/250V (resettable)
10A range : F 10A/250V
Power Supply 2x AAA (LR03C, not incl.)
Ranging Method Manual
Polarity Indication " - " displayed
Overrange Indication " 1 " displayed automatically
Dimensions 126 x 70 x 27mm
4.2. DC Voltage
Range Resolution Accuracy
200mV 100
µ
V ±0.5% of rdg ±2 digits
2000mV 1mV
±0.8% of rdg ±2 digits 20V 10mV
200V 100mV
500V
1V ±1.0% of rdg ±2 digits
Overload protection: 220Vrms AC for the 200mV range and 500VDC or 500Vrms
AC for other ranges.
4.3 AC Voltage
Range Resolution Accuracy
200V 100mV ±1.5% of rdg ±10 digits
500V 1V
Overload protection: 500VDC or 500Vrms for all ranges
Frequency range: 45Hz - 450Hz
4.4. DC Current
Range Resolution Accuracy
2000
µ
A 1
µ
A
±
1.2% of rdg
±
2digits
20mA 10
µ
A
200mA 100
µ
A
±
1.5% of rdg
±
2digits
10A 10mA
±
2.5% of rdg
±
2digits
Overload protection: 500mA/250V resettable fuse + 10A/250V fuse
Input current: max. 10A for 15 seconds (10A/250V fuse)
Measuring voltage drop: 200mV
4.5. Resistance
Range Resolution Accuracy
200
Ω
100m
Ω
±
0.8% of rdg
±
2 digits
2000
Ω
1
Ω
20k
Ω
10
Ω
200k
Ω
100
Ω
2000k
Ω
1k
Ω ±
1.2% of rdg
±
2 digits
Maximum open circuit voltage: 2.8V
Overload protection: max. 220Vrms for 15 seconds on all ranges