User manual
DVM1090                 GB 4
4.2.2. AC Voltage 
Range Resolution  Accuracy 
200mV  0.1mV  ±1.2% of rdg + 5 digits 
2V  1mV  ±1.0% of rdg + 5 digits 
20V  10mV  ±1.0% of rdg + 5 digits 
200V  100mV  ±1.0% of rdg + 5 digits 
700V  1V  ±1.2% of rdg + 5 digits 
Input Impedance  :  10MΩ 
Overload Protection  :  250V DC or rms AC for the 200mV-range, 1000V DC or 700V rms AC for the ranges 2V to 
700V 
Frequency Range  :  40 to 400Hz 
Response  :  average response, calibration in rms of a sine wave. 
Max. Input Voltage  :  700V rms AC 
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. 
4.2.3. DC Current 
Range Resolution  Accuracy 
2mA  1µA  ±1.0% of rdg + 3 digits 
20mA  10µA  ±1.0% of rdg + 3 digits 
200mA  100µA  ±1.5% of rdg + 5 digits 
10A  10mA  ±2.0% of rdg + 10 digits 
Overload Protection :  F1 : F 200mA/250V fuse (quick-acting, max. resistance 2
Ω
) for the ranges 2 to 200mA, F2 : F 
10A/250V fuse (quick-acting) for the 10A-range. 
Max. Input Current  :  mA jack : 200mA, 10A jack : 10A 
Voltage Drop  :  200mV 
4.2.4. AC Current 
Range Resolution  Accuracy 
2mA  1µA  ±1.2% of rdg + 5 digits 
20mA  10µA  ±1.2% of rdg + 5 digits 
200mA  100µA  ±2.0% of rdg + 5 digits 
10A  10mA  ±3.0% of rdg + 10 digits 
Overload Protection :  F1 : F 200mA/250V fuse (quick-acting, max. resistance 2Ω) for the ranges 2 to 200mA, F2 : F 
10A/250V fuse (quick-acting) for the 10A-range. 
Max. Input Current  :  mA jack : 200mA, 10A jack : 10A 
Voltage Drop  :  200mV 
Frequency Range  :  40 to 400HZ 
Response  :  average response, calibration in rms of a sine wave. 










