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Summary of Contents for Sanwa mg5000
- Page 1 MG5000 HIGH VOLTAGE DIGITAL INSULATION RESISTANCE TESTER INSTRUCTION MANUAL...
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Page 3: Table Of Contents
6-2 Calibration and Inspection ............. 16 6-3 Storage .................. 16 6-4 Battery Replacement ............. 16 [7] AFTER-SALE SERVICE 7-1 Warranty and Provision ............17 7-2 Repair ..................17 7-3 SANWA Website ..............18 [8] SPECIFICATIONS 8-1 General Specifications ............19 8-2 Measuring Ranges and Accuracies ........20... -
Page 4: Safety Precautions -Before Use, Read The Following Safety Precautions
[1] SAFETY PRECAUTIONS -Before use, read the following safety precautions.- Thank you for purchasing the Sanwa MG5000 high voltage digital insulation resistance tester. Before use, please read this manual thoroughly to ensure correct and safe use. Keep this instruction manual together with the product. -
Page 5: Overload Protection
5. Never use the tester if the tester, test lead or alligator clip is damaged or broken. 6. Never use the tester with the rear case or battery lid removed. 7. When using the test leads, keep your gingers behind the finger guards of the test probe and the barrier of the alligator clip. -
Page 6: Features
2-2 Features • Safety design in compliance with IEC61010-1. • Five voltage ranges for insulation resistance measurement. • Easy auto display of DAR (Dielectric Absorption Ratio) and PI (Polarization Index) with a single button. • Auto hold function to hold the measured value. •... -
Page 7: Display
3-2 Display Insulation Resistance or voltage value Bar graph of insluation resistance Battery status Polarity AC or DC Unit Timer DAR/PI value High Voltagte warning Dielectric Absorption Ratio Output Voltage monitor Polarization Index 3-3 Test Leads : TL-5K EARTH lead GUARD lead (Black) (Green) -
Page 8: Optional Accessories
3-4 Optional Accessories TL-5K-15 : Removable LINE lead (Red) : 15 m Note : The period in which the insulation resistance is stable varies depending on the length and distribution method of the cable. [4] DESCRIPTION OF FUNCTIONS 4-1 Power/Function Switch Turn this switch to turn on and off the power and to switch the measuring functions. -
Page 9: Auto Power Off
4-6 Auto Power Off The Auto Power Off function turns the display and tester off automatically in about 10 minutes after the last operation. To return from this status, turn the power switch to OFF then to another position. * The Auto Power Off function is defeated during measurement of insulation resistance. -
Page 10: Start-Up Inspection
CAUTION Correct measurement may not be performed when using the tester in a ferromagnetic/intense electric field such as a place near a transformer, high-current circuit or a radio, or when measuring a circuit containing a large amount of harmonics such as an inverter. 5-1 Start-up Inspection Check the following items before starting the daily measurement work. -
Page 11: Insulation Resistance Measurement
Procedure : ① Connect the LINE lead (Red) and EARTH (ground) lead (Black). ② Set the function switch to AC/DC V. ③ Connect the test leads to the object measured. ④ Read the displayed value (there is no need of pressing the TEST button). In the DCV measurement, the “−”... - Page 12 4. When the object measured is grounded, usually connect the EARTH (ground) lead to the grounded side and the LINE lead to the circuit (the value read with this method is lower than that read with the reverse connection). 5. To prevent measurement errors, keep the LINE cord away from the object measured and the ground whenever possible.
- Page 13 Procedure : Ensure that the measured circuit is turned OFF and that no voltage is present in it. ① Connect the EARTH (ground) lead (Black) to the EARTH (E) terminal and the LINE lead (Red) to the LINE (L) terminal. Also connect the GUARD terminal if required.
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Page 14: Discharge Function
Note : • When the object measured is in the live status (≥30 V AC/DC), the display shows the voltage value together with and a warning tone is generated. In this case, the test voltage is not output by pressing the TEST button. To start measurement, turn the power supply to the object measured OFF or discharge it. -
Page 15: Dar/Pi Measurement
5-5 DAR/PI Measurement This function is used to check the increase over time of the insulation resistance after application of voltage to the object measured. It automatically calculates and displays the DAR (Dielectric Absorption Ratio), which is one of the insulation judgment criteria, as well as the PI (Polarization Index). - Page 16 5-5-3 DAR/PI measurement procedure The DAR and PI are measured automatically by the continual insulation resistance measurement. The DAR value is displayed in 1 minute after the start of measurement and the PI value in 10 minutes after. Since the DAR and PI values are obtained by arithmetic operations, “no”...
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Page 17: Voltage Characteristics At Measuring Terminals
(B) Value at 10 minutes after the start. (C) PI value. (5) Returned to display (1). * If the measurement time is insufficient, display (1) is returned by skipping other information. 5-6 Voltage Characteristics at Measuring Terminals MG5000 Output characteristics 6000 5000V range 5000 4000 3000... -
Page 18: Using The Guard Terminal
5-7 Using the GUARD Terminal To use the GUARD terminal, connect the GUARD (Green) lead to the GUARD (G) terminal. When measuring the insulation resistance of a cable, etc., wrap a bare conductor around the insulator surface and connect to the GUARD terminal. -
Page 19: Calibration And Inspection
6-2 Calibration The calibration and inspection may be conducted by the dealer. For more information, please contact the dealer. 6-3 Cleaning and Storage CAUTION 1. The main unit is not resistant to volatile solvent and must not be cleaned with lacquer thinner or alcohol. If it gets dirty, wipe lightly with a soft cloth moistened with a small amount of water. -
Page 20: After-Sale Service
This warranty policy is valid within the country of purchase only, and applied only to the product purchased from Sanwa authorized agent or distributor. Sanwa reserves the right to inspect all warranty claims to determine the extent to which the warranty policy shall apply. -
Page 21: Sanwa Website
Please contact Sanwa authorized agent/distributor/service provider, listed in our website, in your country with above information. An instrument sent to Sanwa/agent/distributor without above information will be returned to the customer. Note : 1) Prior to requesting repair, please check the following : Capacity of the built-in battery, polarity of installation and discontinuity of the test leads. -
Page 22: Specifications
[8] SPECIFICATIONS 8-1 General Specifications AC sensing Average value 1200 counts Bar graph : 36 points DAR/PI value : 9.99 Timer : 99 : 59 (min. : sec.) Sampling rate Approx. 3 times/sec. Overload indication V function : “OL” displayed with buzzer beep Insulation function : "OL"... -
Page 23: Measuring Ranges And Accuracies
EMC Directive, RoHS IEC61326 (EMC). EN50581 (RoHS) Directive Accessories Instruction manual, test leads (TL-5k) Red/Black/Green, carrying case (C-MG5k), “C”-size alkaline batteries x 8 TL-5k contents TL-5K-R : 3 m LINE lead (Red) Removable type TL-5K-B : 3 m EARTH (ground) lead (Black) TL-5K-G : 3 m GUARD lead (Green) TL-5K-A : Alligator clip TL-5K-P : Test probe... -
Page 24: Insulation Resistance
Insulation resistance * Accuracies of the main unit excluding the effects of test leads on measurements. Rated output 250 V 500 V 1000 V 2500 V 5000 V voltage 0.0-99.9 MΩ 0.0-99.9 MΩ 0.0-99.9 MΩ 80-1000 GΩ Measuring 0.0-99.9 MΩ 80-999 MΩ... - Page 25 Accuracy calculation method Example) ACV (AC voltage) measurement Displayed value : 500 V Range and accuracy : ±(2.0 %rdg + 3 dgt) in 1000 V range Error : ±(500 V x 2.0 % + 3 dgt) = ±13 V True value : 500 V ±13 V (487 to 513 V) * In the 1000 V range, the 3 dgt corresponds to 3 V.
- Page 26 MEMO...
- Page 28 Dempa Bldg . , 4-4 Sotokanda 2-Chome Chiyoda-ku, Tokyo 101-0021, Japan 01-1610 2040 6014...
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