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NARDA nbm-520 Operating Manual

Other manuals for nbm-520: User Manual
Manual is about: Broadband Field Meter

Summary of nbm-520

  • Page 1

    Nbm-520 narda broadband field meter operating manual.

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    Narda safety test solutions gmbh sandwiesenstraße 7 72793 pfullingen, germany © 2007 order no.: 2403/98.21 edition: 02/07.12, a... Previous edition: 01/07.03, a... Subject to change. Our normal guarantee and delivery terms apply. Printed in germany.

  • Page 3: Contents

    Narda nbm-520 i contents 1 useful information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 measuring electromagnetic fields . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 about this instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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    Contents ii nbm-520 narda charge state and power source indicator . . . . . . . . . . . . . . . . . 17 operation from rechargeable batteries . . . . . . . . . . . . . . . . . . . 18 3.4 connecting the probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4 measuring with the nbm-...

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    Contents narda nbm-520 iii 6 instrument maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 6.1 cleaning the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 6.2 replacing / removing the batteries . . . . . . . . . . . . . . . . . . . . . . ....

  • Page 6

    Contents iv nbm-520 narda.

  • Page 7: Useful Information

    Narda nbm-520 1 1 useful information this chapter contains basic information about measuring electromagnetic fields and about using the nbm-520. 1.1 measuring electromagnetic fields (page 2) 1.2 about this instrument (page 2) 1.3 about this operating manual (page 3).

  • Page 8: 1.1

    1 useful information 2 nbm-520 narda 1.1 measuring electromagnetic fields in today’s world, practically everyone lives and works in an environment surrounded by technical equipment that gener- ates electromagnetic fields. Our recognition of the problems associated with such fields and our depth of i...

  • Page 9: 1.3

    1.3 about this operating manual narda nbm-520 3 examples: • measuring field strengths as part of general safety regulations • measuring the field strengths around transmitting and radar equipment to establish safety zones and for monitoring during operations • measuring the field strength emanating ...

  • Page 10: Structure of Warnings

    1 useful information 4 nbm-520 narda symbols and terms used in warnings according to the american national standard ansi z535.6-2006, the following warnings, symbols, and terms are used in this document: structure of warnings all warnings are structured as follows: the general danger symbol warns of...

  • Page 11: Terminology

    1.3 about this operating manual narda nbm-520 5 symbols and marks used in this document terminology ! Important instruction indicates an instruction that must be followed to avoid dan- ger. ✓ requirement indicates a requirement that must be met before the next instruction can be carried out, e.G. ✓ ...

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    1 useful information 6 nbm-520 narda.

  • Page 13: Safety Instructions

    Narda nbm-520 7 2 safety instructions this chapter contains important instructions on how to use the nbm-520 safely. Please therefore read this chapter carefully and follow the instructions closely. 2.1 using this operating manual (page 8) 2.2 proper use (page 8) 2.3 improper use (page 8) 2.4 danger...

  • Page 14: 2.1

    2 safety instructions 8 nbm-520 narda 2.1 using this operating manual ! Carefully read this entire operating manual before you start using the instrument. ! Keep this operating manual so that it is available to everyone who uses the instrument, and ensure that this operating manual is with the instr...

  • Page 15: 2.4

    2.4 dangers from electromagnetic fields narda nbm-520 9 2.4 dangers from electromagnetic fields strong fields very high field strengths can occur in the vicinity of some radiation sources. ⇒ do not cross or ignore safety barriers or markings. ⇒ persons with electronic implants (e.G. Heart pacemak- e...

  • Page 16: 2.5

    2 safety instructions 10 nbm-520 narda 2.5 dangers when handling rechargeable batteries when handled improperly, rechargeable batteries can overheat, explode, or ignite. ⇒ only use the nbm-520 with nimh rechargeable batter- ies (aa, mignon). ⇒ do not use dry batteries. ⇒ do not replace individual ba...

  • Page 17: Preparing The Nbm-520 For

    Narda nbm-520 11 3 preparing the nbm-520 for use this chapter describes all you need to do before starting to use the nbm-520. 3.1 unpacking (page 12) 3.2 instrument overview (page 15) 3.3 using rechargeable batteries and the ac adapter / charger (page 17) 3.4 connecting the probe (page 19).

  • Page 18: 3.1

    3 preparing the nbm-520 for use 12 nbm-520 narda 3.1 unpacking packaging the packaging is designed to be re-used as long as it has not been damaged. ⇒ keep the original packaging and use it whenever the in- strument needs to be shipped or transported. Items included ⇒ check that all the following it...

  • Page 19: Equipping The Case

    3.1 unpacking narda nbm-520 13 notice: the addresses of your narda service center are listed at the end of this operating manual and on the internet at http://www.Narda-sts.Com . Equipping the case you can use the case provided to store a wide range of optional accessories in addition to the items s...

  • Page 20: After Transport and Storage

    3 preparing the nbm-520 for use 14 nbm-520 narda after transport and storage note: the instrument is not ready for use until it has reached a temperature within the operating range of -10 to +50 °c. Notice condensation on an instrument can lead to damage condensation can form on an instrument that h...

  • Page 21: 3.2

    3.2 instrument overview narda nbm-520 15 3.2 instrument overview 7 1 2 3 4 9 10 6a 6b 6 5 8.

  • Page 22

    3 preparing the nbm-520 for use 16 nbm-520 narda 1 probe connector socket 2 display 3 operating panel hold or start / stop button freezes the display value, or start / stop measurement for spatial measurements mode button selects the display mode for the measured values units button selects the disp...

  • Page 23: 3.3

    3.3 using rechargeable batteries and the ac adapter / charger narda nbm-520 17 3.3 using rechargeable batteries and the ac adapter / charger power supply the power supply is normally taken from the batteries pro- vided. You can use the ac adapter / charger supplied as an alternative power source. No...

  • Page 24: Charging The Batteries

    3 preparing the nbm-520 for use 18 nbm-520 narda operation from rechargeable batteries note: the batteries are supplied pre-charged. You must fully charge them before using them the first time. Charging the batteries note: a complete charge cycle takes about 2 hours (with the instrument switched off...

  • Page 25: 3.4

    3.4 connecting the probe narda nbm-520 19 proper handling of rechargeable batteries ⇒ observe the following precautions when handling re- chargeable batteries: • always handle the batteries with care. • do not drop or damage the batteries or expose them to excessively high temperatures. • do not lea...

  • Page 26: Notice

    3 preparing the nbm-520 for use 20 nbm-520 narda data sheets of the nbm-520 and nbm probes. These docu- ments can also be downloaded from the narda web site on the internet at^ http://www.Narda-sts.Com . Connecting the probe ✓ the red dot on the probe plug (10) is pointing towards the front of the i...

  • Page 27: Measuring With The

    Narda nbm-520 21 4 measuring with the nbm-520 this chapter describes how to make measurements using the nbm-520. 4.1 switching on (page 22) 4.2 displaying the instrument settings (page 22) 4.3 self test (page 25) 4.4 setting the contrast (page 25) 4.5 overview of the display (page 26) 4.6 selecting ...

  • Page 28: 4.1

    4 measuring with the nbm-520 22 nbm-520 narda 4.1 switching on you can switch the instrument on as soon as you have pre- pared it for use. ⇒ press the on/off button to switch the instrument on. ª the instrument displays the instrument settings and performs a self test. 4.2 displaying the instrument ...

  • Page 29

    4.2 displaying the instrument settings narda nbm-520 23 auto-zero this value determines how often automatic zeroing is per- formed. The following settings are possible: • 6 minutes: auto zero every 6 minutes • 15 minutes: auto zero every 15 minutes • 30 minutes: auto zero every 30 minutes • 60 minut...

  • Page 30

    4 measuring with the nbm-520 24 nbm-520 narda spatial this item displays the measurement method currently selected for determining the spatial average. The following settings are possible: • spatial discrete individual measurement values are recorded and averaged. • spatial continuous the measuremen...

  • Page 31: 4.3

    4.3 self test narda nbm-520 25 4.3 self test the self test takes a few seconds. During this time, the firm- ware version is also displayed. If the test is successful, the message ok is displayed on the screen. If an error message is displayed: ⇒ press the on/off button again to switch the instrument...

  • Page 32: 4.5

    4 measuring with the nbm-520 26 nbm-520 narda 4.5 overview of the display the image below shows the items that can be displayed during a measurement. 4.6 selecting the result type the nbm-520 can display the results in various ways: • act (actual) (page 27) • max (maximum) (page 27) • avg (average) ...

  • Page 33: Act (Actual)

    4.6 selecting the result type narda nbm-520 27 act (actual) the actual field strength value measured at the moment is displayed. If the measured value is outside the instrument’s measure- ment range or if it cannot be shown correctly on the display, appropriate symbols are displayed on the left to i...

  • Page 34: Spatial (Spatial Average)

    4 measuring with the nbm-520 28 nbm-520 narda spatial (spatial average) the spatial average function allows you to determine the spatial average value of the field strength. This measure- ment mode is used, for example, to determine the degree to which the human body is exposed to electromagnetic ra...

  • Page 35: 4.7

    4.7 selecting the units narda nbm-520 29 to measure values continuously ✓ you have set the measurement method to continuous using the pc software. 1. Press the mode button repeatedly until the result type spatial is displayed. 2. Press the hold button to start the measurement. 3. Move the nbm-520 sm...

  • Page 36: 4.8

    4 measuring with the nbm-520 30 nbm-520 narda 4.8 freezing a result 1. Press the hold button to hold the measurement value that is currently displayed. 2. Press the hold button again to resume measuring. 4.9 changing the field type measurement the e-field and h-field probes can only measure the fiel...

  • Page 37: 4.11 Remote Control

    4.11 remote control narda nbm-520 31 to set the alarm limit for normal (flat) probes: ⇒ select the desired limit value for limit flat using the pc software. ª the symbol is shown in the display when the alarm function is activated (see overview of the dis- play on page 26). Table 3 setting ranges of...

  • Page 38: Nbm-550 As The Controller

    4 measuring with the nbm-520 32 nbm-520 narda to remote control the nbm-520 from an nbm-550 measuring set 1. Set the nbm-550 to controller operating mode (see nbm-550 operating manual). 2. Switch on the nbm-520 and connect it to the nbm-550 using a fiber optic cable. ª the nbm-520 can be used as an ...

  • Page 39: 4.12 Switching Off

    4.12 switching off narda nbm-520 33 example: the nbm-520 is remotely controlled via the nbm-550. On nbm-550, the result type average with 6 min. Averaging time was set. The measuring results are cor- rectly displayed in v/m. The nbm-520 simultaneously displays completely different values because it ...

  • Page 40

    4 measuring with the nbm-520 34 nbm-520 narda.

  • Page 41: Pc Software

    Narda nbm-520 35 5 pc software this chapter gives you some basic information about the nbm-ts pc software. It explains the possible applications of the software, how to connect the nbm-520 to the pc and the settings you need to make on the nbm-520. It also describes how to update the nbm-520 softwar...

  • Page 42: 5.1

    5 pc software 36 nbm-520 narda 5.1 using the pc software the nbm-ts pc software is included with the nbm-520. The software provides the following functions: • changing the instrument settings • remote control of the nbm-520 (including live signals on the pc) the pc software is essential for performi...

  • Page 43: 5.4

    5.4 changing the instrument settings narda nbm-520 37 5.4 changing the instrument settings changing the instrument settings 1. Establish a connection between the instrument and pc (see working with the pc software on page 36). 2. Start the software. 3. Select the configuration tab and activate the c...

  • Page 44

    5 pc software 38 nbm-520 narda updating the firmware 1. Save the latest firmware for the nbm-520 on the pc. The latest firmware is available from the narda web site at http://www.Narda-sts.Com . The nbm-ts software automatically directs you with a simple mouse click to the corresponding web site in ...

  • Page 45: Instrument Maintenance

    Narda nbm-520 39 6 instrument maintenance this chapter describes how to clean the instrument, replace the batteries, dispose the instrument and check the instru- ment for proper operation. 6.1 cleaning the instrument (page 40) 6.2 replacing / removing the batteries (page 40) 6.3 disposal (page 42) 6...

  • Page 46: 6.1

    6 instrument maintenance 40 nbm-520 narda 6.1 cleaning the instrument cleaning the instrument: 1. Use a soft cloth to clean the instrument. You can use lukewarm water to which a little detergent solution has been added as a cleansing agent. 2. To prevent streaks and spots, wipe off the instrument wi...

  • Page 47: Warning

    6.2 replacing / removing the batteries narda nbm-520 41 replace the batteries if the operating time is significantly reduced although the batteries are fully charged. Warning improper replacement of batteries overheating, explosion, or ignition of rechargeable batteries/batteries or their surroundin...

  • Page 48: 6.3

    6 instrument maintenance 42 nbm-520 narda replacing the batteries 1. Switch off the instrument and disconnect it from all other devices (ac adapter / charger, optical cable). 2. Open the battery compartment on the back of the instrument. 3. Remove the old batteries and dispose of them according to t...

  • Page 49: Instrument

    6.4 checking for proper operation narda nbm-520 43 instrument this product is subject to european guideline 2002/96/ec governing the disposal of waste electrical and electronic equipment (weee). Do not dispose of this instrument with the normal household waste. You should dispose of it in accordance...

  • Page 50

    6 instrument maintenance 44 nbm-520 narda performing a function test: 1. Connect the probe to the instrument (see connecting the probe on page 19). 2. Switch the instrument on and immediately thereafter press and hold down the units key for 2-3 seconds to activate the probe function test. ª after th...

  • Page 51: Appropriate Test Sources

    6.4 checking for proper operation narda nbm-520 45 appropriate test sources the following table shows appropriate test sources for a function test. Probe test source: 27 mhz (2244/90.38) test-source: 446 mhz pmr pocket radio 1) 1) pmr pocket radios are commonly available in electronics stores. Test-...

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    6 instrument maintenance 46 nbm-520 narda.

  • Page 53: Specifications

    Narda nbm-520 47 7 specifications this chapter lists the specifications of the nbm-520. 7.1 display (page 48) 7.2 measurement functions (page 48) 7.3 interfaces (page 48) 7.4 general specifications (page 49) 7.5 ac adapter / charger unit (page 49) 7.6 ce declaration of conformity (page 50).

  • Page 54: 7.1

    7 specifications 48 nbm-520 narda 7.1 display 7.2 measurement functions 7.3 interfaces display type transflective lcd panel, monochrome display size 4 cm (1.5"), 128 x 64 pixels backlight leds, selectable illumination time (off, 5 s, 10 s, 30 s, 60 s, permanent) display refresh rate every 400 ms res...

  • Page 55: 7.4

    7.4 general specifications narda nbm-520 49 7.4 general specifications 7.5 ac adapter / charger unit recommended calibration inter- val 24 months 1) 1) only for basic instrument; probes are specified separately batteries standard rechargeable nimh batteries, 2 x aa (mignon) type, 2500 mah operating ...

  • Page 56: 7.6

    7 specifications 50 nbm-520 narda 7.6 ce declaration of conformity.

  • Page 57: Ordering Information

    Narda nbm-520 51 8 ordering information this chapter lists the ordering information for the nbm-520, probes and accessories. 8.1 nbm-520 (page 52) 8.2 probes (page 52) 8.3 accessories (page 53).

  • Page 58: 8.1

    8 ordering information 52 nbm-520 narda 8.1 nbm-520 8.2 probes nbm-500 set 2, narda broadband field meter contains: • nbm-520 basic unit (incl. 2 x nimh batteries, aa / mignon type)(2403/01) • rigid shell case for basic unit and up to two probes (2400/90.07) • ac adapter / charger, 9 vdc, 100 - 240 ...

  • Page 59: 8.3

    8.3 accessories narda nbm-520 53 8.3 accessories test generator, 27 mhz 2244/90.38 test generator, 12 ghz model 8699 (for north america only) tripod (non-conducting), 1.65 m, with carrying bag 2244/90.31 tripod extension (non-conducting), 0.50 m (for 2244/90.31) 2244/90.45 extension handle (non-cond...

  • Page 60

    8 ordering information 54 nbm-520 narda.

  • Page 61: Index

    Narda nbm-520 55 index a ac adapter/charger 10 ac adapter/charger, dangers from 10 act (actual) 27 after transport and storage 14 alarm 24 audible signal 29 auto-off 23 auto-zero 23 avg (average) 27 avg time 23 b backlight 23 batteries disposal of 42 replacing / removing 40 c case 13 ce declaration ...

  • Page 62

    Index 56 nbm-520 narda ac adapter/charger 10 electromagnetic fields 9 rechargeable batteries 10 selecting the result type 26 selecting the units 29 self test 25 setting contrast 25 spatial 24 , 28 spatial average 28 specifications 47 switching off 33 switching on 22 symbols and marks 5 t terminology...

  • Page 64

    Narda safety test solutions gmbh sandwiesenstraße 7 72793 pfullingen, germany phone: +49 7121-9732-777 fax: +49 7121-9732-790 e-mail: support@narda-sts.De www.Narda-sts.Com narda safety test solutions 435 moreland road hauppauge, ny 11788, usa phone: +1 631-231-1700 fax: +1 631-231-1711 e-mail: nard...