background image

 

 

 
4.2.2 AC Voltage Measurement  

1.  Set the function switch to the position of V AC, the LED above the jack (V/

/F/ 

CAP) 

will shine. 

2.  Insert the black test lead banana plug into the negative (-) jack (COM) and the red test 

lead banana plug into the positive (+) jack (V/

/F/ 

CAP). 

NOTE

: The meter will be in Auto ranging. If you wish to manually set the range, do so 

following instructions in the Description (4.1Diagram item7) section of this manual. For 
manual ranging, start at the highest range and work down. 

3.  Touch the test lead tips to the circuit under test. 
4.  The TRMS value of the voltage will appear on the display. 

CAUTION:

 If OL shows on the display, disconnect the test lead from circuit immediately to 
avoid damaging the meter. 

   

   Never apply the voltage over 750 V. 

   

   Use 

extreme

 caution when working with high voltage. 

   

   Never connect test lead with circuit when changing the position of function switch. 

 
4.2.3 DC Current Measurement  

1.  Set the function switch to the position of AC/DC, the LED above the jack  (mA/µA TEMP) 

will shine.                              

2.  Insert the black test lead banana plug into the negative (-) jack (COM) and the red test    

lead banana plug into the positive (+) jack (mA/µA TEMP). 

For current measurements from 600mA to 20A, insert the red test lead banana plug into 
the jack (20A). Set the function switch to 20A. 

NOTE

: The meter will be in Auto-ranging. If you wish to manually set the range, do so 

following instructions in the Description (4.1Diagram item7) section of this manual. 
For manual ranging, start at the highest range and work down. In the 20A range, 
use of the Range-H Pushbutton will not change the range, it only changes the 
decimal point. 

3.  Remove power from the circuit under test. Then open up the circuit at the point where you 

wish to measure current. 

4.  Touch the black test lead tips to the negative side of the circuit. Touch the red test lead 

tips to the positive side of the circuit. 

5.  Apply power to the circuit. 
6.  The value and polarity of the Current will appear on the display. 

CAUTION:

 If OL shows on the display, disconnect the test lead from circuit immediately to 
avoid damaging the meter. 

   

   Never connect test lead with circuit when changing the position of function switch. 

                           Do not make current measurements on the 20A scale for longer than 15 seconds 

every 30 minutes. Exceeding 15 seconds may cause damage to the meter and /or 
the test leads.  

 
4.2.4 AC Current Measurement  

1.  Set the function switch to the position of AC/DC A, the LED above the jack  (mA/µA TEMP) 

will shine.                                                          

2.  Insert the black test lead banana plug into the negative (-) jack (COM) and the red test    

lead banana plug into the positive (+) jack (mA/µA TEMP). 

For current measurements from 600mA to 20A, insert the red test lead banana plug into 
the jack (20A). Set the function switch to 20A. 

NOTE

: The meter will be in Auto ranging. If you wish to manually set the range, do so 

following instructions in the Description (4.1Diagram item7) section of this manual. 
For manual ranging, start at the highest range and work down. In the 20A range, 
use of the Range-H Pushbutton will not change the range it only changes the 
decimal point. Remove power from the circuit under test. Then open up the circuit 
at the point where you wish to measure current. 

3.  Touch one of the test lead tips to each side of the open circuit. Apply power to the circuit. 
4.  Apply power to the circuit. 
5.  The TRMS value of the Current will appear on the display. 

Summary of Contents for HH0308C

Page 1: ...PORTANT Read and understand this manual before using the tester Failure to understand and comply with safety rules and operating Instructions can result in serious or fatal injuries and or property da...

Page 2: ...orking with voltage over the 36V safe point 2 6 NEVER change the position of the function switch during measuring 2 7 CHOOSE the correct positions of all function switches before testing 2 8 NEVER cha...

Page 3: ...60uF 100uF 0 01nF 0 1nF 1nF 10nF 100nF 10 rdg 25dgts 2 5 rdg 10dgts The VAC and AAC ranges are specified from 5 to 100 of the range Input Impedance 10M AC DC measurement Diode Test reads approximate...

Page 4: ...voltage press this button once the value on the display will be changed from 5V to 0V Disconnect the test lead from the source 5V will be displayed on the LCD If you measure a 4 5VDC source the LCD w...

Page 5: ...it only changes the decimal point 3 Remove power from the circuit under test Then open up the circuit at the point where you wish to measure current 4 Touch the black test lead tips to the negative si...

Page 6: ...4 Touch the test probe tips across the diode under test read the value on the display 5 Reverse the test probes measuring positions across the diode and read the value 6 The result may as follow 6 1...

Page 7: ...above the jack V F CAP will shine 2 Insert the black test lead banana plug into the negative jack COM and the red test lead banana plug into the positive jack V F CAP 3 Press the HZ button twice the...

Page 8: ...d from any source of voltage 6 4 Remove the screw on the back of the meter then remove the back cover 6 5 Remove the old batteries and insert a pair of new and same type batteries in the right place 6...

Page 9: ......

Reviews: