Vertical amplitude accuracy, bandwidth, timebase and frequency accuracy and trigger sensitivity of oscilloscopes measured on site under LAB Support Ltd.'s A2LA accredited ISO/IEC 17025 scope, by the LAB Support Southeast Asia team.
Burst, surge, ESD and automotive pulse parameters are all measured with an oscilloscope, and the scope's own amplitude accuracy and bandwidth enter the uncertainty of each. A laboratory that calibrates its own generators, or verifies them between external calibrations, needs its oscilloscope on an accredited certificate. Bandwidth and rise time matter most for ESD and burst work.
| Parameter | Range | Common methods and standards |
|---|---|---|
| Vertical amplitude, DC, 50 ohm input | 1 mV to 5 V | DC reference, DMM |
| Vertical amplitude, DC, 1 megohm input | 1 mV to 25 V | DC reference, DMM |
| Bandwidth and frequency response | 9 kHz to 6 GHz | Levelled signal generator, power sensor |
| Timebase and frequency accuracy | 0.1 Hz to 6 GHz | Frequency reference |
| Trigger sensitivity | 1 mV to 25 V | Signal generator |
| Rise time | 0.5 ns and above | Fast-edge generator |
The methods and standards shown are the ones most commonly requested. Within each parameter and range listed on the accredited scope, other calibration methods and standard editions can be supported under the flexible-scope provisions of LAB Support's A2LA accreditation. The measurement uncertainty for each parameter is stated on the certificate. Field calibration is included in the scope for every line above.
From our own calibration records. Any instrument within the scope can be calibrated; these are the ones we see most.
Yes, each channel at each vertical range in use. Tell us if some channels can be excluded to shorten the visit.
Yes. Probe attenuation and bandwidth are calibrated on the probe and clamp page's scope, in the same visit.
The oscilloscope's internal self-calibration is run before measurement where the manufacturer recommends it, then the instrument is measured against traceable references.
Malaysia, Singapore and Vietnam, with Penang as the base. Other locations on request.
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