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OPERATION 
4-1. Panel description 
1. LCD: displays the measuring value and unit. 
2. Function key: 
2-1. SELECT key: DC /AC mode, temperature C/F, Diode / 
Continuity performance switch. 
2-2. RANGE key: select auto range or manual range mode. Auto 
range is the normal mode, it will display 

'

AUTO

'

 symbol. Press it to 

change to manual range. Press it more than 2 seconds, it will return to 
the auto range mode. 
2-3. HOLD key: press it, the presently measured value is held on 
LCD and HOLD symbol displays. Press it again, 

'

HOLD

'

 symbol 

disappears, and the meter exits the holding mode. 
2-4. REL key: press it, reading clears and goes to relative value 

measurement mode. 

'

REL

'

 symbol displays, press it again, 

'

REL

'

 

symbol disappears, and the meter exits the relative mode. 

2-5. MAX/MIN key: press it, meter goes to 

'

MAX

'

 mode, it will hold 

the max value of measured reading. Press it again, goes to 

'

MIN

'

 mode, it will hold the minimum value 

of measurement. No auto power off and analog bar display in this mode. Press it more than 2 seconds, 
it exits MAX/MIN mode. 
2-6. Hz/DUTY key: When measuring AC Voltage (Current), press it, meter switches to 
Frequency/duty cycle/Voltage(Current). When measuring the Frequency, it will switch frequency/duty 
cycle 1 to 99%. 
3. Selector Knob: Selects measuring function and range 
4. Temperature (positive) and V

Hz

 terminal 

5. Voltage, resistance, frequency, capacitor and temperature terminal 
6. COM terminal  
7. Less than 400mA current testing terminal and temperature (negative) terminal 
8. 20A current terminal 
4-2. DCV measurement  
1. Insert the black test lead into 

'

COM

'

 terminal and the red one into 

'

V/

/Hz

'

 terminal. 

2. Turn the selector knob to 

 range; 

3. Auto range is the normal mode, it will display 

'

AUTO

'

 symbol. Press the RANGE key to change to 

the manual range mode, 400mV, 4V, 40V, 400V, 1000V range is selective. 
4. Connect the leads in parallel across the electric circuit under test, LCD displays polarity and voltage 
under test connected by the red test lead. 
Note 
1. Operator should first set the select knob to the highest range, if operator has no idea about the range 
of voltage under test, then select the proper range based on the displayed value. If the LCD displays 

'

OL

'

, it means the meter is over the maximum value of this range, select a higher range. 

2. Never input a voltage over 1000VDC. 
3. Be careful while measuring a high voltage. DO NOT touch the high voltage circuit or test leads. 
4-3. ACV measurement 
1. Insert the black test lead into the 

'

COM

'

 terminal and the red one into the 

'

V/

/Hz

'

 terminal. 

2. Turn the selector knob to 

 range. 

3. Auto range is the normal mode, it will display 

'

AUTO

'

 symbol. Press the 

'

RANGE

'

 key to change to 

the manual range mode, 400mV, 4V, 40V, 400V, 750V range is selective. 

Summary of Contents for VC88E

Page 1: ...User s Manual for VC88E Digital Multimeter...

Page 2: ...connection and the insulation of the test leads and probes to avoid electric shock 2 Never apply voltage higher than 1000VDC or 750VAC when measuring 3 Be careful when measuring a voltage higher than...

Page 3: ...nse 2 4 DC Current DCA Range Accuracy Resolution 400uA 0 1 A 4000uA 1 A 40mA 10 A 400mA 1 0 5 100 A 20A 1 2 10 10mA MAX measurement voltage drop full range mA 1 2VA 100mV Max input current 20A within...

Page 4: ...nce test Range Value displayed Testing condition Forward voltage drop of diode Forward DCA is approx 0 5mA the backward voltage is approx 1 5V Buzzer makes a long sound while resistance is less than 3...

Page 5: ...uring function and range 4 Temperature positive and V Hz terminal 5 Voltage resistance frequency capacitor and temperature terminal 6 COM terminal 7 Less than 400mA current testing terminal and temper...

Page 6: ...proper range based on the displayed value 2 If the LCD displays OL it means the current is over range You need to move the selector knob to a higher range 3 Maximum input current is 400mA or 20A base...

Page 7: ...sert the black lest lead into the COM terminal and the red one into the V Hz terminal 2 Turn the selector knob to the Hz range 3 Place the test leads to the power source or the load which is to be tes...

Page 8: ...the HOLD button again the HOLD function is cancelled 4 13 Auto power off 1 When the meter has not been used for about 15 minutes the built in buzzer will sound 5 times and the meter goes into sleeping...

Page 9: ...ignal appears Replace battery Large Error Value Replace battery These specifications are subject to change without notice We hereby will not be responsible for any accident and damage caused by improp...

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