MULTI MEASURING INSTRUMENTS MLIT-1 Instruction Manual Download Page 5

3. SPECIFICATIONS  

 
 

  1) INPUT PART   
 
(1)  VOLTAGE INPUT (PHASE VOLTAGE)   
 

① 

Input Method        : Direct Input by Test Leads 

② 

Input Impedance     : more than 1M

Ω

 

③ 

Input Voltage Range    : AC50V

AC500V 

④ 

Input Frequency            : 50Hz or 60Hz by Switch 

⑤ 

Minimum Resolution    : 0.1V 

 
(2)  CURRENT INPUT (GROUNDING LINE CURRENT) 
 
   

 Input Method         : Split-Core Type ZCT 

 
 

  2

) CURRENT DETECTION PART 

                 

 

① 

Inside Diameter of CT    :

Φ

30mm 

② 

Method               : Split-Core Type ZCT 

③ 

Structure             : Manual Slide Method 

④ 

Withstanding Voltage      : AC2000V, 1 Minute 

⑤ 

Length of Cable       : 2000mm 

⑥ 

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 

   

 Measuring Method    : Clamp CT Method  

  Measuring Range          : Leakage & Line Current (Auto-range) 

                                                    0

200

μ

A / 2mA / 20mA / 200mA 

                       

    AC Voltage : 0

500.0V (1 range) 

                          Insulation Resistance : Calculation by Current & Voltage 

 Input Frequency       : 45

65Hz (by Frequency Change Switch) 

  Minimum Resolution      : Leakage, Line, Ior Current : 0.1

μ

                         AC Voltage : 0.1V 

⑥ 

AC Detection Method    : Average Sensing RMS Conversion 

⑦ 

A/D Conversion       : Successive Comparison Method 

   

 Display               : Max. 1999 Count LCD with Annunciators 

 
 
 
 

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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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