Related Manuals for ETS-Lindgren HI-3627
Summary of Contents for ETS-Lindgren HI-3627
- Page 1 HI-3627 ELF Magnetic Field Meter User Manual ets-lindgren.com Introduction...
- Page 2 ETS-Lindgren Inc. reserves the right to make changes to any products herein to improve functioning or design. Although the information in this document has been carefully reviewed and is believed to be reliable, ETS-Lindgren does not assume any liability arising out of the application or use of any product or circuit described herein;...
-
Page 3: Table Of Contents
Low Battery Indication ..............20 Recharging .................. 20 5.0 Making Measurements .......... 21 6.0 Example Applications of the HI-3627 ....23 Mapping Power Lines ..............23 Locating and Mapping Underground Cables ....... 24 ... - Page 4 9.0 References ............. 35 Appendix A: Warranty ..........37 Duration of Warranties ..............37 Appendix B: EC Declaration of Conformity ....39 Introduction ets-lindgren.com...
- Page 5 This page intentionally left blank. ets-lindgren.com Introduction...
-
Page 6: Notes, Cautions, And Warnings
Warning: Denotes a hazard. Failure to follow instructions could result in SEVERE personal injury and/or property damage. Included text gives proper procedures. Note: See the ETS-Lindgren Product Information Bulletin for safety, regulatory, and other product marking information. Safety Information Refer to Manual: When product is marked with this symbol, see the instruction manual for additional information. - Page 7 At end of useful life, please recycle the used batteries, or dispose of them safely and properly. Many cities collect used batteries for recycling or disposal. You may contact your local waste disposal agency for information on battery recycling and disposal. ets-lindgren.com Introduction...
- Page 8 This page intentionally left blank. Introduction ets-lindgren.com...
-
Page 9: Introduction
1.0 Introduction The HI-3627 ELF Magnetic Field Meter is designed to measure the flux density of magnetic fields in the frequency range of 5 Hz to 2 kHz. The HI-3627 finds application in the measurement of magnetic fields associated with electric power lines and electrically operated appliances. -
Page 10: Ets-Lindgren Product Information Bulletin
ETS-Lindgren Product Information Bulletin See the ETS-Lindgren Product Information Bulletin included with your shipment for the following: Warranty information Safety, regulatory, and other product marking information Steps to receive your shipment Steps to return a component for service ... -
Page 11: Maintenance
If you have any questions concerning maintenance, contact ETS-Lindgren Customer Service. Battery Replacement The battery pack used in the HI-3627 Magnetic Field meter is a commonly available NiCad battery pack (ETS-Lindgren part number H- 491044, 9.6 volt, 600 mAH, or equivalent). In the event of battery failure, a new battery can be obtained from ETS-Lindgren or from a local source. -
Page 12: Service Procedures
Service Procedures ETS-L ONTACTING INDGREN Note: Please see www.ets-lindgren.com for a list of ETS-Lindgren offices, including phone and email contact information. ENDING A OMPONENT FOR ERVICE For the steps to return a system or system component to ETS- Lindgren for service, see the Product Information Bulletin included with your shipment. -
Page 13: Specifications
30 Hz -3 dB (see note) 2000 Hz - 3 dB < 30 Falling 80 dB/decade (see note) > 2000 Hz Falling 40 dB/decade Note: The frequency response is switchable to 5 Hz. Figure 3-1: Typical Frequency Response ets-lindgren.com Specifications... - Page 14 200 mG 20 G Accuracy ± 5 % at calibration frequency Power One 9.6 volt NiCad battery Battery Life Approximately 30 Hrs. continuous operation (new battery with a full charge) Linearity (see note) ± 2% Full Scale Specifications ets-lindgren.com...
- Page 15 While the HI-3627 indicates magnetic flux density (B) in units of milligauss, the flux density in microtesla or magnetic field strength (H) in milliamperes per meter may be obtained via the following relations: 1 mG = .1 microtesla (μT)
- Page 16 This page intentionally left blank. Specifications ets-lindgren.com...
-
Page 17: Operation
Controls, Indicators, and Connectors The HI-3627 is housed in a rugged aluminum case with a detachable probe. The unit is shipped in a convenient carrying case with foam cutouts which accommodate the meter, probe and the optional accessories offered with the meter. -
Page 18: Recorder Output
Figure 4-1: Meter Recorder Output The HI-3627 Magnetic Field Meter has a recorder output. The recorder output is a voltage signal (0-5 VDC) proportional to the needle deflection on the meter. This output can be used to drive a chart recorder, data logger, or other device to display the indicated field reading on the instrument. - Page 19 The meter movement and the recorder output are driven by a PWM (pulse width modulator). This leads to a small amount of ripple on the recorder output, typically 50 mV at 40 Hz. ets-lindgren.com Operation...
-
Page 20: Low Battery Indication
Recharge the battery with the standard trickle charger (P/N H-491063- 02). Recharging a fully discharged unit will take 15 hours to complete. The standard charger provided with the HI-3627 is a trickle charger. It works by charging the battery with relatively low current. The charger can be left connected to the meter indefinitely without causing severe damage, although some memory effects may result. -
Page 21: Making Measurements
Consequently, during such movement, the meter will typically show significant upscale indications. The 5 Hz frequency cutoff setting is primarily useful for measurements at fixed coil positions such as near VDTs. ets-lindgren.com Making Measurements... - Page 22 This page intentionally left blank. Making Measurements ets-lindgren.com...
-
Page 23: Example Applications Of The Hi-3627
Mapping Power Lines Magnetic fields near power lines can be easily measured with the HI-3627. An approach commonly used to characterize power line fields is to measure the flux density along a straight line which passes perpendicular to the power line. Generally, readings are first taken along the length of a span of the power line to identify the point at which the greatest flux density exists. -
Page 24: Locating And Mapping Underground Cables
Locating and Mapping Underground Cables The HI-3627 with its omni-directional response is an effective and easy to use device for locating buried current carrying bodies. The procedure is quite simple. Hold the probe near the ground at a constant height and walk toward the highest field reading. - Page 25 After some experience, it may be possible to relate the observed fluctuations to various uses of electricity within the room. ets-lindgren.com Example Applications of the HI-3627...
-
Page 26: Residential Ground Currents
As mentioned earlier, current can exist in pipes and heating ducts or anything metal in the house. This gives rise to an interesting application for the HI-3627; detecting leakage currents from appliances. For example it was noted that the fields around a water pipe leading from a dishwasher changed dramatically when the dishwasher was run. - Page 27 This, of course, is a singular example that only worked because of very unusual circumstances, but it does show the versatility of this easy to use field meter. ets-lindgren.com Example Applications of the HI-3627...
- Page 28 This page intentionally left blank. Example Applications of the HI- ets-lindgren.com 3627...
-
Page 29: Principle Of Operation
7.0 Principle of Operation The circuitry of the HI-3627 can be divided into six sections; the probe, input signal conditioning, filter section, RMS calculation, information processing and power supply. Each of these is discussed in the follow sections (see Figure 7.1). - Page 30 Figure 7.1 Principle of Operation ets-lindgren.com...
-
Page 31: Rms Circuitry
Power Supply Power is supplied to the HI-3627 by a NiCad battery. The NiCad battery chosen for this application is a common type. The current consumption of the instrument is relatively low with the operating life being greater than 30 hours of continuous operation. - Page 32 This page intentionally left blank. Principle of Operation ets-lindgren.com...
-
Page 33: Calibration
8.0 Calibration The HI-3627 is calibrated using a one meter diameter Helmholtz coil. Each axis is individually calibrated. Calibration is performed at 60 Hz at levels of 100 mG, 1 G, and 10 G. All calibrations are traceable to NIST. - Page 34 This page intentionally left blank. Calibration ets-lindgren.com...
-
Page 35: References
(3) Electric and Magnetic Field Measurements and Possible Effects on Human Health from Appliances, Power Lines, and Other Common Sources. Special Epidemiological Studies Program, California Department of Health Services, 2151 Berkeley Way, Room 704, Berkeley, Ca. 94704 (415)540-2669 ets-lindgren.com References... - Page 36 This page intentionally left blank. References ets-lindgren.com...
-
Page 37: Appendix A: Warranty
Appendix A: Warranty Note: See the Product Information Bulletin included with your shipment for the complete ETS-Lindgren warranty for your HI-3627 Elf Magnetic Field Meter. Duration of Warranties All product warranties, except the warranty of title, and all remedies for warranty failures are limited to one year. - Page 38 This page intentionally left blank. Warranty ets-lindgren.com...
-
Page 39: Appendix B: Ec Declaration Of Conformity
Product: HI-3627 Elf Magnetic Field Meter The HI-3627 ELF Magnetic Field Meter is designed to measure Description: the flux density of magnetic fields in the frequency range of 5 Hz to 2 kHz...
Need help?
Do you have a question about the HI-3627 and is the answer not in the manual?
Questions and answers