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TM-527

Handheld Digital TeslaMeter

USER’S MANUAL

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modification, or products at any time without notice. HTC shall not be liable for

errors contained herein or for incidental or consequential damages in connection

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Summary of content (8 pages)

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TM TM-527 Handheld Digital TeslaMeter USER’S MANUAL HTC reserves the right to add, improve, modify, or withdraw function, design modification, or products at any time without notice. HTC shall not be liable for errors contained herein or for incidental or consequential damages in connection with use of this material. The HTC website, www.htcinstrument.com contains details of all our products. This site is regularly update, so check it from time to time to learn about recent development. www.htcinstrument.
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TM 1. GENERAL DESCRIPTION The TM-527 Handheld Digital Teslameter is a field-portable unit that measures DC magnetic fields with direct digital readout in mT or G. The unit is designed for wide range, auto-range, high accuracy, and ease of use. 2. SPECIFICATIONS 2.1.
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TM 3. INTRODUCTION TM-527 Handheld Digital Teslameter front panel is shown in Fig1 Hall Probe interface TM-527 HTC DIGITAL TESLAMETER Fig 1 Front Panel TM-527 front panel key are defined as follows. 1) ON/OFF : Turns power to the unit on/off. 2) Hold : Turn Max Hold feature on and off. Max Hold captures and displays the highest field reading. 3) 4) 5) Turn backlight feature on and off. Backlight lighten up the LCD for reading.
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TM Fig 2 LCD Display 9V Battery Battery door Fig 3 Rear Panel When the stud-snap battery is used up, you should take the follow steps to replace it. Firstly, use a longstemmed driver to remove off the screw which on the hole shown in the fig 3. Secondly, unfasten the snap of the battery, then take a new battery replace of the old, fasten the snap, screw on. Finally replace the battery door. 3 www.htcinstrument.
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TM 4. TRANSVERSE PROBE TM-527 can use either the transverse probe shown in Fig 4. Fig 4 Transverse probe CAUTION : Care must be taken when handing the probe .The tip of the probe is very fragile .Pressure the Hall sensor can alter its calibration. Don’t apply more force than is required to hold probe in place. So there is no excessive pressure which will tend to bend or depress the sensor substrate and will destroy the Hall element inside. 5. INITIAL SETUP 5.1.
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TM 5.4. Turn on apparatus Push the ON/OFF key on. The LCD displays like Fig 2. 5.5. Null Probe It is good practice to zero the instrument immediately prior to making critical field measurements. For absolute zeroing ,place the probe in a zero-field region, either in a zero field chamber or inside a suitable , magnetic field, so that the probe is shielded from the earth’s magnetic field and other stray fields.
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TM end of the probe. A collision with a hard surface can damage the sensor or wear away its protective coating. The transverse sensor is somewhat susceptible to bending stress and erosion of the protective coating. When the meter is not in use, the probe should be mounted by cover. 6.4. Probe operation For best results, the instrument and probe should warm up for at least 10 minutes before operation.
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TM 6.5. Hold The Hold function display the largest field magnitude measured .When the Hold key is pressed, the maximum value is captured and shown in the display. The “Hold” is displayed in the LCD like in Fig 2. Press the Hold key again, Hold function will be turn off ,the “Hold” is disappear .The meter is real-time measurement of magnetic field. 7. IN CASE OF TROUBLE 1. Can’t turn on the power or automatic shut off. The solution :check the battery install correctly and the power is sufficient.