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NBM-550 is part of the NBM-500 instrument family. It delivers extremely accurate results for electromagnetic field strength measurements. NBM-550 handles applications from a few Hertz through to long wave and on up to high frequency microwave radiation using a selection of interchangeable probes for electric and magnetic fields.

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1.5 kg

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PRODUCT FEATURES:

  • Intelligent probe interface detects probe parameters
  • Fully automatic zero point adjustment
  • Memory for saving up to 5,000 measurement results
  • PC software for convenient data management

OPTIONS:

  • GPS interface and plug-in GPS receiver for automatically storing the position data
  • Voice recording for comments
  • Conditional logging: Measured value saved when a threshold value is exceeded

NBM-550 is part of the NBM-500 instrument family. It delivers extremely accurate results for electromagnetic field strength measurements. NBM-550 handles applications from a few Hertz through to long wave and on up to high frequency microwave radiation using a selection of interchangeable probes for electric and magnetic fields.

The field strengths are captured with flat frequency response probes or probes with shaped frequency response, allowing the measurement values to be assessed against an environmental or occupational safety standard. The calibration factors for each probe are stored in the probe itself and are read out and taken into account automatically by the measuring set.

Frequency response weighted probes for convenient testing.

There are different personal safety limits at different frequencies. “Shaped probes” take care of the frequency issues for you, providing an easy-to-read display as a % of standard. You don’t have to deal with the actual field strength limits or frequencies, enabling quick and simple measurements even under complex ambient conditions. Narda Safety Test Solutions is the only supplier for shaped probes. Why? We hold the patent for this feature.

What is a shaped probe?

The traditionally-used flat frequency response probes have been developed with the aim of providing a probe having as constant sensitivity to magnetic field strength as possible over the usable frequency range. In contrast, Narda’s patented Shaped Probes are constructed in a completely different way. The sensitivity of these probes is designed to match a particular directive or standard. The sensitivity versus frequency (frequency response) of the probe is as closely as possible in inverse proportion to the limit value curve. The measured values are not displayed in V/m or W/m2, but are shown as “% of standard” instead. This makes it very easy to assess the results, particularly in multi-frequency environments as there is no need to worry about the predominant frequencies in the field. A result of less than 100% always means that the limit values are not exceeded anywhere within the entire frequency range of the probe. The “% of standard” display is referred to the power density of the electromagnetic field. The high bandwidth of 300 kHz to 50 GHz of a Narda “Shaped Probe” is unique.

What’s the reason for the extremely wide bandwidth of Narda’s shaped probes?

When compared with conventional broadband probes, Narda’s Shaped Probes have a much wider frequency range (e.g. 300 kHz – 50 GHz). The reason for this is the use of a diode-based probe section for the lower frequency range (approx. 300 kHz – 2 GHz) and a thermocouple probe section for the upper frequency range (approx. 300 MHz – 50 GHz). Both parts of the probe have suitable frequency responses which are superimposed after adjustment of the sensitivity and which correspond as closely as possible to the limit value curve of a particular safety standard (e.g. ICNIRP).
Although the transition region is continuous, Shaped Probes can be considered simply as diode probes below 1.5 GHz and as thermocouple probes above 1.5 GHz.

What’s the difference between thermocouple and diode-based probes?

Both types of probe use dipoles to detect the electric field. The dipoles in the thermocouple probes are formed by thermocouples connected in series, which generate a DC voltage proportional to the power density. In the diode-based probes, the dipoles are formed by two equal lengths of wire with a detector diode as rectifier between them. Both these techniques can be used to develop broadband sensors.

Displėjus 10 cm (4''), 240 x 320 px
Operating time 12 hours (backlight permanently on, no GPS)
Matmenys 45 x 98 x 280 mm
Svoris 550 g (without probe and GPS -receiver)

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_Shablon

_Shablon

NBM-550 is part of the NBM-500 instrument family. It delivers extremely accurate results for electromagnetic field strength measurements. NBM-550 handles applications from a few Hertz through to long wave and on up to high frequency microwave radiation using a selection of interchangeable probes for electric and magnetic fields.

Description Language Ver. Link
NBM-500 Series Leaflet English

NSTS 01/17 E0229G

NBM-500 Leaflet, EN
NBM-520 Datasheet English

NSTS 0216-E0232E

NBM-520 Datasheet, EN
NBM-550 Datasheet English

NSTS 0815-E0231I

NBM-520 Datasheet, EN
NBM-550 and EHP-50F One set for everything English

NSTS 12/14 ME-E0300C

NBM-550/EHP-50F Flyer, EN
Safety at Work English

NSTS 06/16-ME-E324A

Safety at Work Flyer, EN
NBM basic unit and probes – Plug-in or threated connector? English

NBM Connectors, EN
IEC 62311: Demonstrating conformance in the high frequency range English

TA_HF_1015_E_IEC62311_2009-04-09

TN IEC 62311, EN
Tech. note: Measuring RMS field strength English

TN012

TN012 Note, EN
Tech. note: Standard-Compliant - Radar English

TN111

TN111 Note, EN
Probe selection guide English

NBM Probes, EN
Probe EF0391 Tech. description English

NSTS 0214-E0233C

EF0391 Datasheet, EN
Probe EF0392 Tech. description English

NSTS 0214-E0252C

EF0392 Datasheet, EN
Probe EF0691 Tech. description English

NSTS 0815-E0264D

EF0691 Datasheet, EN
Probe EF1891 Tech. description English

NSTS 0214-E0234D

EF1891 Datasheet, EN
Probe EF4091 Tech. description English

NSTS 0416-E0323A

EF4091 Datasheet, EN
Probe EF5091 Tech. description English

NSTS 0815-E0235F

EF5091 Datasheet, EN
Probe EF5092 Tech. description English

NSTS 0815-E0240F

EF5092 Datasheet, EN
Probe EF6092 Tech. description English

NSTS 0416-E0307C

EF6092 Datasheet, EN
Probe EF9091 Tech. description English

NSTS 0616-E0322C

EF9091 Datasheet, EN
Probes EA5091/EB5091/EC5091/ED5091 Tech. description English

NSTS 0616-E0239F

EA5091 Datasheet, EN
Probe HF3061 Tech. description English

NSTS 0214-E0237D

HF3061 Datasheet, EN
Probe HF0191 Tech. description English

NSTS 0815-E0238C

HF0191 Datasheet, EN

Narda NBM-550 Basic Set

NBM-500 Set 1, Narda Broadband Field Meter (2400/101B) - no probes included

1. NBM-550 Basic Unit (2401/01B)
2. Hard case for NBM-500 Series, holds meter and up to 5 probes (2400/90.06)
3. Power Supply 9VDC, 100V-240VAC (2259/92.06)
4. Battery, Rechargeable, NiMH (2x 2259/92.07)
5. Shoulder Strap, 1m (2244/90.49)
6. Tripod, bench top, 0.16m (2244/90.32)
7. Cable, USB Interface for NBM-550, 2 m (2400/90.05)
8. Software, NBM-TS, PC Transfer (2400/93.01)
9. Operating Manual NBM-550
10. Certificate of calibration

NBM-500 Set 13, 1Hz-6GHz with EHP-50F, NBM-550, EF0691 (2400/113)

1. all parts from NBM-500 Set 1 (2400/101B)
2. all parts from EHP-50F E&H Field Analyzer Set, 1Hz-400kHz (2404/103)
3. Probe EF 0691, E-Field,100kHz-6GHz (2402/14B)
4. Tripod, Non-Conductive, 1.65m, with Carrying Bag (2244/90.31)

NBM-500 Set 15, 1Hz-3GHz with EHP-50F, NBM-550, EF0391 (2400/115)

1. all parts from NBM-500 Set 1 (2400/101B)
2. all parts from EHP-50F E&H Field Analyzer Set, 1Hz-400kHz (2404/103)
3. Probe EF 0391, E-Field,100kHz-3GHz (2402/01B)
4. Tripod, Non-Conductive, 1.65m, with Carrying Bag (2244/90.31)

EHP-50F E&H Field Analyzer Set, 1Hz-400kHz, for NBM-550 (2400/103)

1. EHP-50F Basic Unit (2404/03)
2. AC/DC Battery Charger, for EHP-50 (2259/92.08)
3. Cable, FO Duplex, RP-02, 10m (2260/91.07)
4. Optical Bridge Connector RP-02 (2260/91.08)
5. EHP-TS PC Software (2404/93.01)
6. O/E Converter USB, RP-02/USB (2260/90.07)
7. Tripod Extension, 0.50m, Non-Conductive (2244/90.45)
8. Foam Inserts for EHP-50, for Hardcase 2400/90.06 (2404/90.01)

Options Set for NBM-550 (2401/40)

GPS, Voice Recorder, Conditional Logging
1. GPS Receiver for NBM-550
2. GPS Mounting Set
3. Earphone, 3.5mm Plug
4. Option Key: GPS/Voice/Condit.

 
Important delivery information

Due to the distributor limitation, we may supply this device to Estonia only.

If You wish to buy this device in another country, not listed above, please let us know and we will advice You.

Thank You for Your understanding.

Best regards,
LSTE Team

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