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MULTI MEASURING INSTRUMENTS MSEI-100C Instruction Manual

Nsulation resistance tester for photovoltaic systems
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INSULATION RESISTANCE TESTER FOR
PHOTOVOLTAIC SYSTEMS
INSTRUCTION MANUAL
Thank you for your purchasing our model MSEI-100C
INSULATION RESISTANCE TESTER FOR DC CURRENT
CIRCUIT OF PHOTOVOLTAIC SYSTEMS.
Before use the instrument, read this instruction manual
thoroughly and operate it correctly.
Keep this instruction manual carefully to take out whenever
you need.
MULTI MEASURING INSTRUMENT CO., LTD.
Akihabara Murai Bldg. 7F, 1-26 Kanda Sakuma-cho,
Chiyoda-ku, Tokyo 101-0025 JAPAN
Website:
MSEI-100C
TEL: +81-3-3251-7013
FAX: +81-3-3253-4278
http://www.multimic.com
E-mail: multi@multimic.com

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Summary of Contents for MULTI MEASURING INSTRUMENTS MSEI-100C

  • Page 1 INSULATION RESISTANCE TESTER FOR PHOTOVOLTAIC SYSTEMS MSEI-100C INSTRUCTION MANUAL Thank you for your purchasing our model MSEI-100C INSULATION RESISTANCE TESTER FOR DC CURRENT CIRCUIT OF PHOTOVOLTAIC SYSTEMS. Before use the instrument, read this instruction manual thoroughly and operate it correctly.

  • Page 2: Safety Summary

    SAFETY SUMMARY observe by all means ● To use this instrument safely, read this "SAFETY SUMMARY" carefully and apply the instrument correctly. ● The CAUTIONs and WARNINGs which appear on the following pages are stated to prevent the operator & other people from the dangers and their properties from the damages beforehand.

  • Page 3: Before Use

    1. GENERAL This insulation resistance tester (MSEI-100C) can measure insulation resistance of DC current circuit in PV systems (between PV module and power conditioner) on the live line and can distinguish the deteriorated part between Power Phase, Neutral Phase, P/N Phase and or PV modules.
  • Page 4 4. NAME OF PART & EXPLANATION ① ② ③ ⑤ ④ ⑥ ⑦ ⑧ ⑨ ⑩ （Name of Part & Explanation） ①Battery Case : For battery installation ②AC ADP Jack : For connecting AC adaptor(option) ③Contrast Volume : For adjusting display contrast ④Left, Right, Up, Down Switch : For moving cursor on display and setting value ⑤Display (LCD)

  • Page 5: Operation Procedure

    5. OPERATION PROCEDURE 5.1 Preparation before use 1) Place the battery 1. Unscrew and slide a battery cover to remove a battery cover(as shown at right) 2. Place the battery observing correct polarity as indicated battery compartment. four LR-6(AAA) batteries. 3.
  • Page 6 2) Use AC adaptor for long time use. 1. Insert the plug of AC adaptor to the jack of the instrument body(AC ADP). 2. Connect AC adaptor to the outlet(AC 100V). Built-in battery is supplementary for unexpected power failure. Normally, use AC adaptor included in the package.
  • Page 7 Initial Screen 5.2 OPERATION PROCEDURE 1) Once press POWER switch ⑦ (Top Menu) [SEI-100C Ver.] appears on the display and ■Measure [ZERO setting] will be displayed for a few seconds Operate Memory after lightening LED of display judgment. Set Configuration Then, [Top Menu](initial display) will appear.
  • Page 8 3) Display before measurement Set the cursor to Measure and press ENT switch ⑥ once. Display will become as under: Rr ： *.***kΩ 05/17 Internal Standard Resistance→ Present Time ： ***.* V 13：38 Generated Voltage→ Vrp : ***.* V P Phase Voltage→ Measuring Time N Phase Voltage→...
  • Page 9 (2) No good (Red) Lamp Lightening In case that the judgment is as no good, the corresponding lamp (P phase failure, N phase failure, PN phase failure) lightens. ・To start the measurement again, press ENT switch ⑥ once again, ・Top Menu display will appear before or during measurement in case of press MENU swtch ⑧.

  • Page 10: Function Setting

    5.3 FUNCTION SETTING 1) Measurement Time Setting (Set Timer) Measuring time means the time after the connection of instrument internal standard resistor to each phase to measure voltage between standard resistors. The setting times are 30 sec., 180 sec., 300 sec., 600 sec., and 900 sec. (1) Press DOWN switch twice Initial Display at the initial display (Top Menu)
  • Page 11 ■Set Timer 30sec (2) Set Timer 30 sec. is displayed and press DOWN↓ switch. ↓DOWN Switch ■Now Time(System) (3) Now Time (System) is displayed. Press 2013/05/17 14:26 ENT switch and set the present time. ↓ENT switch (4) By UP↑ switch and DOWN↓ switch, set the (Now Time) numerical value and by RIGHT switch, move 2013/05/17...

  • Page 12: Measurement Specifications

    6. SPECIFICATIONS 6.1 MEASUREMENT SPECIFICATIONS 1) Detection Method : DC Voltage measurement between the earth by standard resistor. 2) Measurement Items : Generated Voltage (DCV), P Phase Insulation Resistance, N Phase Insulation Resistance, PN Phase Insulation Resistance, Insulation Resistance between modules, Standard Resistance Value.

  • Page 13: Function Specification

    5.2 FUNCTION SPECIFICATION 1) Measuring Time : 30 sec., 180 sec., 300 sec., 600 sec., and 900 sec. Setting 2) Time Function : can set the present time 3) Module Number : can specify the insulation failure point between which modules Setting by input of PV module numbers, in case that there is insulation failure between modules,...
  • Page 14 7. Repair Service When requesting for repair service, please bring the instrument directly to the dealer where you bought. When mailing the instrument, always pack it in its original or equivalent packing materials to avoid any damage during the transportation and also put together with documents showing your name, address, phone number and defect point.

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