MULTI MEASURING INSTRUMENTS MLIT-1 Instruction Manual Download Page 14

① 

Press POWER switch 

  once. All display appears and then, becomes voltage 

display. 

② 

Connect ZCT to CT INPUT and test leads to 

V INPUT according to each color. 

③ 

According to the circuit and apparatus to be measured, input the voltage and 
current to the instrument. Refer to wiring method for voltage & current input. 

④ 

By frequency change switch, set the power supply frequency to be measured. 

⑤ 

Confirm the voltage value on display and once press current range switch. The 
display becomes Io current. Confirm Io current value and press current range 
switch once again. The display becomes 1

Φ

/ Ior showing Ior current of single 

phase. Measure Ior current value by pressing current range switch according to 
wiring system to be measured. 
By pressing current range switch : 

 

                  Io                  I

Φ

/Ior                     

/Ior           

 

      Y/Ior       

 

 

                        press                      press                      press               

 

 press 

 
 
In order to consider tan

δ

, once press tan

δ

ON switch 

, “tan

δ

” appears on the 

display. To get back before, press tan

δ

OFF switch 

 and “tan

δ

” disappears. 

⑥ 

To measure the insulation resistance (M

Ω

), once press insulation resistance 

switch. In case of no voltage input, the display becomes “OL”. 

⑦ 

In order to memorize Ior current or M

Ω

 values, press D-HOLD switch 

 and 

then, press ENT switch 

  at each time. 

 
 

(WIRING SYSTEM) 
 

a   1P/1W, 1P/3W CIRCUIT   : Wiring Mode 1

Φ

/Ior 

 

         

 

 

 

 

 

 

 

 

 

 

 

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Summary of Contents for MLIT-1

Page 1: ...struction manual completely and familiarize yourself thoroughly with all functions Keep this instruction manual carefully to take out whenever you need MULTI MEASURING INSTRUMENTS CO LTD Akihabara Mur...

Page 2: ...ENT CAUTION Do not use or storage this instrument under the condition of direct rays of the sun high temperature humidity and or condensation as it may cause the deformation and or the isolation defec...

Page 3: ...CT case are damaged and if something is wrong with the CT cables When replacing the batteries remove the instrument from all measuring circuits Do not load the voltage exceeding AC10V to the input out...

Page 4: ...there are so many places where we cannot cut down the electricity easily The model MLIT 1 applied the super precision split core type ZCT and enabled the insulation resistance measurement up to 20M w...

Page 5: ...ength of Cable 2000mm Dimension Weight 29 6 x 90 2 x 70 7mm Approx 200g 3 MEASUREING PART Measuring Function AC Voltage Line Current Leakage Current Resistive Leakage Current Ior Insulation Resistance...

Page 6: ...raged into the internal memory and they can be taken out on the display if necessary There are also all clear mode etc 4 GENERAL SPECIFICATION Circuit Voltage to be applied Less than AC500V Insulated...

Page 7: ...1mA 0 200 1 999mA 1 5 rdg 15dgt 20mA 0 01mA 2 00 19 99mA 1 5 rdg 15dgt 200mA 0 1mA 20 0 220 0mA 1 5 rdg 15dgt Accuracy with the condition that the conductor to be measured is located in the center of...

Page 8: ...the switch and power off by pressing once more Voltage Select Switch V By pressing this switch the voltage value will be displayed Current Range Switch I By pressing this switch Io current value will...

Page 9: ...played values Frequency Change Switch Set according to power supply frequency RIGHT tan ON Switch Press this switch to measure Ior current and M by calcurating tan and tan mark will be blinking on the...

Page 10: ...isplay when batteries are exhausted and get less than operation voltage Replace to new batteries immediately Do not use the batteries mixed new one and once used and or different kind ones WARNING POS...

Page 11: ...ands Do not use the instrument if the CT or CT case are damaged Do not use the instrument leaving the battery cover off POSSIBLE FIRE HAZARD AND BURN ACCIDENT Part of ZCT will get heat when applying e...

Page 12: ...mode Then press ENT switch and the data will be memorized Not to make memorization press D HOLD Switch once again to release the data hold function In case of over range OL mark will be displayed Note...

Page 13: ...t attention to the wiring in case of measurement of Ior M as the instrument regards phase factors of current voltage Also the current measurement cannot be done if mistaking the frequency setting as t...

Page 14: ...nd press current range switch once again The display becomes 1 Ior showing Ior current of single phase Measure Ior current value by pressing current range switch according to wiring system to be measu...

Page 15: ...b 3P 3W CIRCUIT Wiring Mode Ior c 3P 4W CIRCUIT Wiring Mode Y Ior 14...

Page 16: ...d AC SERVOMOTOR Wiring Mode 1 Ior e INVERTER MOTOR Wiring Mode 1 Ior 15...

Page 17: ...ata already the old data will be deleted and the new one will be memorized 2 How to see the memorized data on the display MEMORY ON MODE Pressing LEFT switch and RIGHT switch push POWER switch No 1 da...

Page 18: ...wn levers get clicked completely CAUTION 1 The secondary side of the ZCT is open When clamping CT to the conductor without inserting to the instrument voltage will occure at the secondary side which m...

Page 19: ...ntact the dealer where you bought the instrument The warranty period is 12 months from the date of purchase and the instrument shall be repaired at free of charge provided that we judge the cause of d...

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