Urrea UD77, User Manual And Warranty

E N G L I S H

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instrument and separate the front and 
rear housing. 

3.  Replace the fuse(s) with the same type 

and size as the one removed.

4.  Snap the front and rear housing back 

together and reinstall the screws.

5.  Re-attach the rubber boot.

6. ACCESSORIES

UD71TLAC- Test Lead Set.

NOTE: When servicing the Meter, use only 
the specified parts.

7. SPECIFICATIONS

7.1  Specifications.

Accuracy is given as ± ([% of reading] + 
[number of least significant digits]) at 18°C 
to 28°C with relative humidity up to 80%, 
for a period of one year after calibration.

Function

 Volts DC

Range

Resolution

Accuracy

200 mV

2 V

20 V

200 V

1000 V

100 µV

1 mV

10 mV

0,1 V

1 V

0,5 %+1 dgt

Imput imedance

10 MΩ

Function

 Volts AC

(45Hz to 450 Hz)

Range

Resolution

Accuracy

200 mV

2 V

20 V

200 V

100 µV

1 mV

10 mV

0,1 V

0,8 %+3 dgts

750 V

1 V

1,2%+3 dgts

Imput imedance

10 MΩ

Function

 Ampers DC

Range

Resolution

Accuracy

Voltage 

Drop

200 µA

2 mA

20 mA

200 mA

2 A

0,1 µA

1 µA

10 µA

100 µA

1 mA

0,8 %+1 dgts

1 mV/µA

100 mV/µA

10 mV/mA

1,2 mV/mA

0,28 V/A

10 A

10 mA

2,0%+10 dgts

0,22 V/A

Function

 Ampers AC

(45Hz to 450 Hz)

Range

Resolution

Accuracy

Voltage 

Drop

200 µA

2 mA

20 mA

200 mA

2 A

0,1 µA

1 µA

10 µA

100 µA

1 mA

1,0 %+3 dgts

1 mV/µA

100 mV/µA

10 mV/mA

1,2 mV/mA

0,28 V/A

10 A

10 mA

3,0%+10 dgts

0,22 V/A

Function

 Resistance

Rango

Resolution

Accuracy

200 Ω

0,1 Ω

0,5 %+10 dgt

2 KΩ

20 KΩ

200 KΩ

2 MΩ

1 Ω

10 Ω

0,1 KΩ

1 KΩ

0,5 %+1 dgts

20 MΩ

10 KΩ

1,0%+2 dgts

Open circuit voltage

< 1,2 V

Continuity: OPEN CIRCUIT TEST VOLTAGE: < 
1.2 V THRESHOLD: Approx.< 150Ω.
Diode Check: OPEN CIRCUIT TEST VOLTAGE: 
< 3 V MAX. TEST CURRENT: 1 mA.

NOTE:
V DC: NORMAL MODE REJECTION RATIO: 
>46dB at 50Hz or 60Hz.
COMMON MODE REJECTION RATIO: 104dB