Velleman DVM1090 User Manual - page 4
DVM1090 GB
3
4. Specifications
Max. accuracy is achieved during a one-year period after calibration. Ideal circumstances require a temperature of 18
to 28°C (64 to 82°F) and a max. relative humidity of 75%.
4.1 General Specifications
Measuring Method
Dual-slope integration A/D converter
Sampling Time
±0.4sec.
Display LCD
25mm
Max. Display
1999 points (3 ½ digits)
Polarity Indication
“-“ indicates negative polarity
Overrange Indication
“1”
Displayed Measuring Unit
Unit of electrical capacity
Battery-Low Indication
“
”-symbol is displayed
Maximum Altitude
7000ft (2000m)
Max. voltage between terminals and earth 1000V DC or AC
Fuse Protection
F 200mA/250V (quick-acting, max. resistance 2
Ω
), F 10A/250V (quick-
acting)
Power Supply
9V-battery (e.g. 6F22)
Operating Temperature
0°C to +40°C (+32 to +104°F)
Storage Temperature
-10°C to +50°C (+10 to +122°F)
Dimensions
185 x 84 x 38mm
Weight
±300g (battery included)
4.2 Electrical Specifications
4.2.1. DC Voltage
Range Resolution
Accuracy
200mV
0.1mV
±0.5% of rdg + 1 digit
2V
1mV
±0.5% of rdg + 3 digits
20V
10mV
±0.5% of rdg + 3 digits
200V
100mV
±0.5% of rdg + 3 digits
1000V
1V
±0.8% of rdg + 3 digits
Input Impedance
: 10M
Ω
Overload Protection : 250V DC or rms AC for the 200mV-range, 1000V DC or 700V rms AC for the ranges 2V to
1000V
Max. Input Voltage : 1000V DC
NOTE
Make sure the test leads are actually touching the circuit when performing measurements in the lower voltage
ranges. The reading will fluctuate if the leads don’t touch the circuit.