Accredited Calibration Center

Calibration Center
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LAT N° 008
Membro degli Accordi di Mutuo Riconoscimento EA, IAF e ILAC
Signatory of EA, IAF and ILAC
Mutual Recognition Agreements

The traceability to national standards is the indispensable metrological base for the quality of the industrial production, and for the international acknowledgment of the certification, they are guaranteed from the possibility to carry out, in the course of the productive cycle and to the action of the test, reliable measurements.

This requirement implies that all the instrumentation is calibrated, directly or indirectly, through an uninterrupted chain of comparisons, with reference to national standards.

The Service of calibration in Italy (SIT), now ACCREDIA, denomination that characterizes the initiative been born in 1977 from part of the Primary Metrological Institute for the accreditation of calibration Centers, finds its full application with the institution of National Calibration System (SNT) through italian law 273/91, that has confirmed to the National Institute of Metrologic Research (INRIM) and to the National Institute of Metrology of Ionizating Radiation of ENEA, the task to conserve the national standards, verifying the coherence with those of other countries and to scatter the units realized for means of such standards, through the Calibration Centers.

The Calibration Centers are accredited from the ACCREDIA L’Ente Italiano di Accreditamento that recognize therefore they technical competence, the correctness of the procedures, and primarily they guarantee the metrological traceability.

 

The Narda STS Calibration Center LAT n° 008

Accredited certification

Standard Accreditation Tables

Since 1980 Narda STS Center has been accredited and identified with number 008 like Calibration Center in order to carry out calibrations referred to the national standards

Narda STS is accredited also for theElectromagnetic Field Strength Standard with the best measurement capabilities as in the following table:

Measurand Instruments Additional parameters Measurement range Uncertainty
Field strength:
electric and magnetic field		 Field strength meters from 100 kHz to 300 MHz from 0,25 to 1,5 V/m from 0,67 to 3,97 mA/m 10 * 10-2
from 100 kHz to 300 MHz from 1,5 to 250 V/mfrom 3,97 to 650 mA/m 9,0 * 10-2
from 300 MHz to 1 GHz from 0,06 to 100 V/mfrom 0,16 to 265 mA/m 12 * 10-2
from 1 GHz to 2 GHz from 0,06 to 50 V/mfrom 0,16 to 132 mA/m 12 * 10-2
from 2 GHz to 4 GHz from 0,06 to 50 V/mfrom 0,16 to 132 mA/m 13 * 10-2
from 4 GHz to 18 GHz from 0,06 to 50 V/mfrom 0,16 to 132 mA/m 15 * 10-2

 

Narda STS is accredited also for the Magnetic Flux Density Standard with the best measurement capabilities as in the following table:

Measurand Instruments Additional parameters Measurement range Uncertainty(1)
Magnetic Flux Density Sensors

Magnetic flux density meter

 from 10 Hz to 20 kHz from 100 nT to 1 µT from 6 * 10-2 to 1,7 * 10-2
from 1 µT to 10 µT 1,4 * 10-2
from 20 kHz to 50 kHz from 100 nT to 1 µT from 6,1 * 10-2 to 2,0 * 10-2
from 1 µT to 10 µT 1,8 * 10-2
from 50 kHz to 100 kHz from 100 nT to 1 µT from 6,4 * 10-2 to 2,8 * 10-2
from 1 µT to 3 µT 2,7 * 10-2
from 50 Hz to 60 Hz from 10 µT to 100 µT 2 * 10-2
from 100 µT to 500 µT 2,6 * 10-2

1 In cases where the expanded uncertainty is expressed as a range of values, the uncertainty varies approximately inversely proportional to the square root of the magnetic induction value.

 

Narda STS is accredited also for the Radiofrequency measurements (RF) Standard with the best measurement capabilities as in the following table:

Measurand Instruments Measurement range Additional parameters Uncertainty(2)(3)
Power

(absolute level)

 Generators and sources

of reference in coaxial line

with characteristic impedance 50Ω

with N type connectors

 from 1 nW to 10 nW from 9 kHz to 3 GHz from 7,1 * 10-2 to 1,8 * 10-2
from 3 GHz to 8 GHz from 7,5 * 10-2 to 1,8 * 10-2
from 8 GHz to 12 GHz from 7,4 * 10-2 to 2,1 * 10-2
from 12 GHz to 18 GHZ from 7,4 * 10-2 to 2,1 * 10-2
from 10 nW to 1 µW from 90 kHz to 3 GHz 1,8 * 10-2
from 3 GHz to 8 GHz 1,9 * 10-2
from 8 GHz to 12 GHz 2,1 * 10-2
from 12 GHz to 18 GHZ 2,1 * 10-2
from 1 µW to 200 mW from 90 kHz to 3 GHz 1,9 * 10-2
from 3 GHz to 8 GHz 2,0 * 10-2
from 8 GHz to 12 GHz 2,6 * 10-2
from 12 GHz to 18 GHZ 3,0 * 10-2
Calibration factor

(correction coefficient)

 Sensorsin coaxial line
with characteristic impedance 50Ωwith N type connectors		 from 3 µW to 30 µW from 90 kHz to 10 MHz from 2,9 * 10-2 to 2,0 * 10-2
from 10 MHz to 8 GHz from 2,9 * 10-2 to 2,0 * 10-2
from 8 GHz to 12 GHz from 3,0 * 10-2 to 2,2 * 10-2
from 12 GHz to 18 GHZ from 3,3 * 10-2 to 2,6 * 10-2
from 30 µW to 10 mW from 90 kHz to 10 MHz 2,0 * 10-2
from 10 MHz to 8 GHz 2,0 * 10-2
from 8 GHz to 12 GHz 2,2 * 10-2
from 12 GHz to 18 GHZ 2,6 * 10-2

2 The extended uncertainty is expressed in relative values and refers to a perfectly adapted measurand.
3 In general, the extended Uncertainty value is a function of both the power level being measured and the measurement frequency.
If the uncertainty is expressed below with a range of values, the extremes indicated represent the minimum value and the maximum value that
the extended uncertainty can assume when the power level and frequency vary within the ranges indicated, respectively, in “Measurement range” and “Conditions”.

Calibration

The calibration not only identifies the reference standards, but Narda STS guarantees the “indispensable total Traceability” in order to enter in the markets all around the world. The Narda STS laboratory of calibration offers services of calibration for all the instrumentation in the EMC field:

  • EMI receivers and Spectrum Analyzers
  • Absorbing Clamps and EM Clamps
  • Current Probes
  • R.F. Generators and Power Meters
  • ESD, Burst/Fast Transient and Surge
  • Magnetic and Electric field sensors (in TEM cells and Anechoic chamber)
  • Antennas in O.A.T.S. (Open Area Test Site)

The growing demand of calibration in the EMC field have pushed the Narda STS Center to operate in the field of the fast impulses in conformity to international norms EN and IEC, in particular for impulsive tensions and transitory currents for the calibration of:

  • ESD Simulators (Electrostatic Discharge)
  • Burst/Fast Transient Equipment
  • Surge Equipment