background image

  

b. 

Before  measuring,  LCD  display  might  not  be  zero,  the  residual 
reading will decrease gradually and should be disregarded.  

c. 

When measuring large capacitance,  LCD may display an unstable 
value due to creepage or breaking.  

d. 

Discharge 

all 

capacitors 

completely 

before 

capacitance 

measurement to avoid damage.  

e. 

Do not input any volt at this range.  

f. 

This  range  is  for  automatic  range  test,

 

measuring  the  range  from 

10nF to 2000uF.  

g. 

UNIT: 1mF=1000uF   1uF =1000nF    1nF=1000pF  

  
3.6  FREQUENCY MEASUREMENT  

3.6.1  Apply  th

e  test  lead  or  shield  to  cable  to  “COM”  or  ““V/Ω/Hz”

 

terminal.  

3.6.2  Switch  the  knob  to  frequency  range,

 

and  connect    the  test  leads 

across the signal source or the measured load.  

NOTE:   

a. 

When input is 10Vrms or less,

 a 

reading is possible but maybe over-

range.  

b. 

Shielded  cable  is  recommended  when  measuring  small  signals 
under noisy conditions.  

c. 

Be careful when measuring high volt circuit.  

d. 

Do  not  input  a  voltage  over  DC  250V  or  AC  peak  factor  to  avoid 
damage to the meter.  

e. 

This  range  is  for  automatic  range  test,

 

Measuring  the  range  from 

10Hz to 2MHz  

  
3.7  DIODE AND CONTINUITY TEST  

3.7.1 

Insert  the  black  test  lead  to  “COM”  terminal  and  the  red  one  to 
“V/Ω/Hz” jack( Note: the polarity of red test lead is“+”).  

3.7.2 

Set  the  range  knob  to“

”range,  connect  the  test  leads  to  the 

diode being measured, reading  is the  approximation  of the diode 
positive volt drop.  

3.7.3  Connect  the  test  leads  to  two  points  of  the  measured  circuit,  if 

buzzer sounds, the resistance is lower than approx.

50±20

Ω.  

3.8  DATA HOLD  

Press the “HOLD/BL”,

 

LCD displays “HOLD”,

 

the present value is held on 

LCD,

 

press it again, the function is cancelled.  

3.9  AUTO POWER-OFF  

Содержание MT-1705

Страница 1: ...MT 1705 3 1 2 True RMS Multimeter User s Manual 1st Edition 2014 Copyright by Prokit s Industries Co Ltd...

Страница 2: ...t leads are connected correctly whether the insulation is good when measuring over 36DCV or 25ACV 3 Remove the test leads when changing function and range 4 To select correct function and range make s...

Страница 3: ...200mV 0 5 3 100uV 2V 1mV 20V 10mV 200V 100mV 600V 1 0 10 1V Input resistance All ranges 10 M Overload protection 250V DV or AC peak value at 200mV range 600V DC or AC peak value at other ranges 2 2 2...

Страница 4: ...2 2 4 ACA True RMS measurement Range Accuracy Resolution 40Hz 200Hz 200Hz 1kHz 200mA 1 5 15 1 5 15 sine and triangular wave 8 0 15 other wave 100uA 10A 3 0 10 3 0 10 sine and triangular wave 10mA Max...

Страница 5: ...RESOLUTION 20nF 3 5 20 10pF 200nF 100pF 2uF 1nF 20uF 5 0 10 10nF 200uF 100nF 2000uF 1uF Overload protection 250V DC or AC peak value NOTE when over range it can keep on measuring OL will not show on L...

Страница 6: ...n and range 3 1 5 GND 3 1 6 10A current test jack 3 1 7 pole jack of voltage resistance diode capacitance and resistance 3 2 VOLTAGE MEASUREMENT 3 2 1 Insert the black test lead to COM jack the red on...

Страница 7: ...range knob to a proper resistance range connect the test leads across to the resistance being measured NOTE a If the resistance value being measured exceeds the max value of the range selected LCD dis...

Страница 8: ...less a reading is possible but maybe over range b Shielded cable is recommended when measuring small signals under noisy conditions c Be careful when measuring high volt circuit d Do not input a volta...

Страница 9: ...meter and should only be serviced by factory personnel 4 1 Do not operate or store the instrument in high temperature or high humidity place and do not work closed to flammability substance or explosi...

Страница 10: ...9 NO CURRENT INPUT Replace fuse BIG ERROR Replace battery PROKIT S INDUSTRIES CO LTD http www prokits com tw E mail pk mail prokits com tw 2014 Prokit s Industries Co LTD All rights reserved 2014001 C...

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