VI. DISPLAY SYMBOLS (SHOWN IN 
     FIGURE 2)

1.   AC signal measurement instructions;
2.   Negative polarity instructions;
3.   DC signal measurement instructions;
4.   Instructions of deficient battery charge;
5.   Automatic range instructions;
6.   Diode testing instructions;
7.   ON/OFF detection instructions;
8.   Measurement instructions of duty cycle;
9.   Data maintenance instructions;
10. Measurement instructions of relative value;
11. Temperature measurement unit (

);

12. Resistance measurement unit (ohm, kilo-ohm 
      and mega-ohm);
13. Frequency measurement unit (Hz);
14. Capacitance measurement unit (nF and 

µ

F);

15. Current measurement unit (A);
16. Voltage measurement unit (mV and V);

3

3

4

4

6

6

10

10

11

11

13

13

12

12

5

5

8

8 9

9

15

15

1

1

2

2

16

16

7

7

14

14

Figure 2

VII. KEY FUNCTIONS AND 
      AUTOMATIC SHUTDOWN

1.HOLD
As reading maintenance key, it is to maintain 
displayed reading by triggering. Displayed value 
will be locked for constant display by pressing the 
key once. It can be pressed again to release 
locking status and return to common measurement 
status.
2.REL
Current display value of clamp meter will be used 
as reference value after pressing the key. Display 
will be reset to 

0

 to minus reference value 

from measurement result automatically until 
exiting measurement function of relative value by 
pressing the key again. 

relative

 range can be 

switched over by pressing the key in         and 

measurement gears.
3.SELECT
It is a function selection key for switchover of  
                  and  measurement gears by triggering. 
Note: Automatic shutdown function will be cancelled 
if pressing SELECT key for bootstrap after 
automatic shutdown.
4.Automatic Shutdown
Clamp meter will 

power off automatically

(under sleeping status) to save electric energy if 
function key and knob switch fail to operate 
within 15 minutes during measurement. 
Automatic shutdown function can be cancelled by 
pressing SELECT key for bootstrap. Clamp 
meter will 

start up automatically

 (under 

working status) by rotating function key under 
automatic shutdown status. (Please refer to 
Clause 6 for effective key operation.)