The following accredited measurement and calibration services are available.
Time and Frequency
Frequency (e.g. oscillators)
Time Interval (e.g. time delay generators, stopwatches, timers)
Rise- and fall-time (e.g. pulse generators, oscilloscopes)
Phase angle (e.g. phase angle meters, generators)
Rotational speed (e.g. tachometers)
Fibre Optics
Fibre optic power (e.g. fibre optic power meters, return loss meters)
Wavelength (e.g. OSA, fibre optic sources, LED, FP laser, wavemeter, return loss meter)
OTDR loss scale deviation (e.g. OTDR)
OTDR distance scale deviation and location offset (e.g. OTDR)
Optical length (e.g. fibre reels, fibre standards)
Temperature and Humidity Laboratory Services
Calibration of contact thermometers from -196 °C to 1555 °C:
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platinum resistance thermometers (PRTs) can be calibrated from -196 °C to 660 °C.
thermistors from 0 °C to 60 °C.
thermocouples from -80 °C to 1555 °C and
liquid-in-glass thermometers from -25 °C to 280 °C.
Calibration of infrared radiation thermometers from 0 °C to 1600 °C and blackbody radiation sources from 0 °C to 2000 °C.
Traceability for contact thermometry is obtained from thermometric fixed point cells from the triple point of argon (Ar) (-189.344 2 °C) to the freezing point of copper (1084.62 °C). (Pt-Rh thermocouples are calibrated at the melting point of palladium (1553.5 °C) using the wire-bridge method.
- Development of calibration methods and transfer traceability to industry and African NMIs.
Dissemination of temperature scales by calibration of temperature sensors.
Provide a link between the African region and the rest of the world’s NMIs through comparison measurements in temperature and humidity.
Fixed points calibration of standard platinum resistance thermometers from Ar to Al points.
Calibration of other contact thermometers in the temperature range from -80 °C to 1600 °C.
Fixed point calibration of thermocouples in the temperature range from Sn to Pd points.
Calibration of surface thermometers in the temperature range from 0 °C to 450 °C.
Calibration of radiation thermometers and blackbody radiation sources from 0 °C to 2000 °C.
Calibration of hygrometers, saturated salt solution and humidity related measuring equipment from 5 %rh to 95 %rh.
Calibration of dewpoint meters from -75 °C to +70 °C.
Calibration of water activity meters from 0,05 aw to 0,95 aw.
Traceability for radiation thermometry is obtained from contact thermometers up to 500 °C and from a spectrally characterised monochromatic radiation thermometer calibrated at the freezing point of silver (961.78 °C) or copper (1084.62 °C) from 600 °C.
