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Summary of Contents for Tenmars TM-508A
- Page 1 MILLIOHM METER TM-508A User’s Manual HB2TM508A001 TENMARS ELECTRONICS CO., LTD...
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Page 2: Table Of Contents
CONTENTS Features ........... 3 General specifications ......3 Instrument description ......5 Notice in prior to the testing ...... 6 Electrical specifications: ......6 Measurement by the Four Wire type one pair of coated clip ..........7 Precise Impedance measurement.... 8 Battery Replacement ........ -
Page 3: Features
TM-508A 1 Features 1. Very low impedance measurement by Four Wire type one pair coated clip. 2. There is a fuse (0.5A/250V) to pro the input circuit. 3. Applicable measurement of Resistance, motor coil, transformer, Printed Circuit Board. 4. Accurate measurement of conductor, light electricity and welding point. - Page 4 TM-508A ambience: environmental pollution grades two. 8. Operating 5°C to 40°C, 80%RH or lower. temperature and R.H. value: 9. Storage -10°C to 60°C, 70%RH or lower. temperature and R.H. value: 10. Power supply: 1.5V × 6 NEDA 15F IEC R6 JIS SUM-3 11.
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Page 5: Instrument Description
TM-508A 3 Instrument description 1. RX socket: For testing clips input. 2. LCD display: Indication of measured value and unit. 3. ZERO ADJ. For zero adjustment. Knob: 4. Power switch Selection in functional range of and Range the meter. selector switch: 5. -
Page 6: Notice In Prior To The Testing
TM-508A 4 Notice in prior to the testing 1. Don not connect the testing input terminals LO, RX, RX, HI,) any input voltage directly, so as to prevent any possible damage to the internal circuits of the meter. 5 Electrical specifications: ( 23°C±5°C, 80% RH or lower ) -
Page 7: Measurement By The Four Wire Type One
TM-508A 6 Measurement by the Four Wire type one pair of coated clip To guarantee an higher precise measurement of this digital Ohmmeter, an accurate wide range impedance testing equipment, and to eliminate any Improper Influence of measurement, especially in effect of the impedance of testing leads, the following procedures should be followed. -
Page 8: Precise Impedance Measurement
TM-508A between terminals RX1 and RX2. 7 Precise Impedance measurement 1. Insert an RED testing lead into “HI” socket and another RED testing lead into the adjacent “RX” socket; insert a BLACK testing lead into “LO” socket and another BLACK testing lead into the adjacent “RX”... -
Page 9: Battery Replacement
TM-508A 4. Measure the resistance on PCB by using the two-point type of measurement per shown in figure 4. FIG(4) The measured value is shown on LCD . 8 Battery Replacement The meter is powered by 1.5V battery x6pcs (NEDA 15F IEC R6 JIS UM-3). -
Page 10: Replacement Of Fuse
TM-508A 5. Re-install the battery cover and tighten the holding screws. 9 Replacement of fuse For a safety protection of the electrical circuit please replace new fuse complying the specification 0.5A/250V, 5Øx 20mm. FAST MIN INTERRUPT RATINGS 1500A. 1. Select the function range switch to “OFF”... -
Page 11: End Of Life
TM-508A 3. Do not use strong or abrasive detergents, water and wet cloth to clean the instrument. Do use a dry cloth to clean the instrument. 4. Do not place this meter in high temperature or humidity or expose to direct sunlight. - Page 12 Solar power meter, Radiation meter, Clamp meter, Multimeter Phase Rotation tester, Digital Insulation tester Our products of high quality are selling well all over the world TENMARS ELECTRONICS CO., LTD 6F, 586, RUI GUANG ROAD, NEIHU, TAIPEI 114, TAIWAN. E-mail: service@tenmars.com http://www.tenmars.com...
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