Urrea UD18, User Manual And Warranty

16

E N G L I S H

Measurement limits.
DC Voltage: 0 to 750V
AC Voltage: 0 to 750V
Resistance: 0 to 20 MΩ
Capacitance: 0.001  µF to 9999  µF
Frequency: 1 Hz to 200 KHz
Continuity Check: Beep to Approx. < 100Ω in the 
400Ω range
“Logic Probe” Function: -9.9V to +39.9V DC (Up to 
400 KHz)

10. SPECIFICATIONS

Accuracy is given as ± (% of reading) + (number of 
least significant digits) at 18° to 28 °C with relative 
humidity up to 80%, or a period of one year after 
calibration. AC conversions are AC-coupled, average 
responding, and calibrated to the RMS value of a sine 
wave input:

Function

 DC Volts

Range

Resolution

Accuracy

400 mV

4 V

40 V

400

750 V

0,1 mV

0,001 V

0,01V

0,1 V

1 V

±(0,9% + 2)

Maximum input voltage:

750 V DC

Input impedance 
(nominal):

> 10 MΩ < 100 pF

Common mode rejection 
ratio:

> 90 dB at DC, 50 Hz
(1 KΩ unbalanced)

Normal mode rejection 
radio:

> 30 dB at 50 Hz 
or 60 Hz

Function

 AC Volts

Range

Resolution

Accuracy

4 V *

40 V

400 V
750 V

0,001 V

0,01 V

0,1 V

1 V

±(1,9% + 3)

*This accuracy in the 4V range is guaranteed for 
50Hz to 200 Hz only.
Maximum input voltage:

750 V AC maximum 
(peak)

Input impedance 
(nominal):

> 10 MΩ > 100 pF
(AC coupled)

Common mode rejection 
ratio:

> 60 dB, DC to 60 Hz

Function

 Resistance

Range

Resolution

Accuracy

400 Ω

4 KΩ

40 KΩ

400 KΩ

4 MΩ

0,1Ω

0,001 KΩ

0,01 Ω

0,1 KΩ

0,001 MΩ

±(0,9% + 2)

20 MΩ

0,01 MΩ

±(1,5% + 3)

Overload protection:

600 V DC / AC maximum 
(peak)

Open circuit test voltage:

< 3,5 V DC

Full scale voltage to 4 MΩ: < 450 mV DC at 20 MΩ : 

< 2,5 V DC

Short circuit current:

< 1,5 mA