SAC-SINGLAS Accredited · ISO/IEC 17025
Digital Storage Oscilloscope (DSO) Calibration in Singapore
Unitest calibrates digital storage oscilloscopes (DSOs) and mixed-signal oscilloscopes in Singapore — including Tektronix, Fluke and Keysight — across bandwidth 50 kHz to 1100 MHz, vertical deflection to ±130 V and timebase 2 ns to 5 s, under SAC-SINGLAS accreditation LA-2023-0845-C (ISO/IEC 17025). Standard turnaround is 5–7 working days; express service is 2–3 days, with free collection and delivery in Singapore for orders above $300.
Also known as: DSO · Mixed-Signal Oscilloscope · ScopeMeter · Handheld Oscilloscope
Why calibrate?
Unitest calibrates digital storage oscilloscopes (DSOs) and mixed-signal oscilloscopes in Singapore for bandwidth up to 1100 MHz, verifying vertical deflection, horizontal timebase and bandwidth, with SAC-SINGLAS accredited ISO/IEC 17025 certificates. Vertical gain, timebase accuracy and bandwidth all drift with age and temperature — calibration confirms that waveform measurements and pass/fail decisions in design verification or safety testing are based on accurate, traceable references.
What you receive
What digital storage oscilloscope (DSO) calibration at Unitest covers
Traceable certificate
Calibration certificate with an unbroken traceability chain to national and international standards, recording the as-found condition before any adjustment.
Stated uncertainty
Results reported with measurement uncertainty, so you know exactly how much confidence each reading carries in your quality system.
5–7 day turnaround
Standard turnaround 5–7 working days; express 2–3 working days on request. Free collection and delivery within Singapore for orders above S$300.
Part of our oscilloscope calibration service, accredited under SAC-SINGLAS LA-2023-0845-C.
How often
How often should a digital storage oscilloscope (DSO) be calibrated?
Oscilloscopes should be calibrated every 12 months. Instruments used in acceptance testing, safety testing or precision waveform measurement should carry a current certificate.
Accredited ranges
Digital Storage Oscilloscope (DSO) calibration ranges & measurement uncertainty
The parameters, ranges and calibration & measurement capability (CMC) below are taken from our SAC-SINGLAS Schedule of Accreditation (LA-2023-0845-C, to ISO/IEC 17025). CMC is the smallest measurement uncertainty we can achieve under accredited conditions.
Oscilloscope Calibration – Vertical Deflection @ DC Signal (50 Ω Input)· UNI-E005 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| ± 1 mV – ± 24.999 mV | 2 % |
| ± 25 mV – ± 109.99 mV | 0.6 % |
| ± 110 mV – ± 2.1999 V | 6.4 % |
| ± 2.2 V – ± 6.6 V | 0.5 % |
Oscilloscope Calibration – Vertical Deflection @ DC Signal (1 MΩ Input)· UNI-E005 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| ± 1 mV – ± 24.999 mV | 3.8 % |
| ± 25 mV – ± 109.99 mV | 0.49 % |
| ± 110 mV – ± 2.1999 V | 0.47% |
| ± 2.2 – ± 10.999 V | 0.46 % |
| ± 11 V – ± 130 V | 0.46 % |
Oscilloscope Calibration – Vertical Deflection @ AC Signal (50 Ω Input)· UNI-E005 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 1 mVp-p to ± 24.999 mVp-p | 1.9 % |
| 25 mV p-p – ±109.99mVp-p | 0.6 % |
| 110 mVp-p – ± 2.1999 Vp-p | 5.3 % |
| 2.2 Vp-p – ± 6.6 Vp-p | 0.5 % |
Oscilloscope Calibration – Vertical Deflection @ AC Signal (1 MΩ Input)· UNI-E005 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| ± 1 mVp-p – ± 24.999 mVp-p | 3.2 % |
| ± 25 mV – ± 109.99 mVp-p | 0.51 % |
| ± 110 mVp-p – ± 2.1999 Vp-p | 0.48% |
| ± 2.2 Vp-p – ± 10.999 Vp-p | 0.47 % |
| ± 11 Vp-p – ± 130 Vp-p | 0.47 % |
Oscilloscope Calibration – Horizontal Deflection· UNI-E005 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 2 ns – 5 ns | 0.063 % |
| >5 ns – 10 ns | 0.081 % |
| >10 ns – 20 ns | 0.073 % |
| >20 ns – 50 ns | 0.061 % |
| >50 ns – 50 µs | 0.095 % |
| >50 µs – 20 ms | 0.073 % |
| >20 ms – 50 ms | 0.061 % |
| >50 ms – 5 s | 0.14% |
Oscilloscope Calibration – Bandwidth· UNI-E005 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 50 kHz – 100 MHz | 0.26 dB |
| >100 MHz – 300 MHz | 0.30 dB |
| >300 MHz – 600 MHz | 0.48 dB |
| >600 MHz – 1100 MHz | 0.57 dB |
You can also verify our accreditation on the SAC-SINGLAS directory.
Brands & models
Digital Storage Oscilloscope brands & models we calibrate
The models customers most commonly send in — not our full capability. Every model is quoted individually; request a quotation and we'll confirm ranges, points and turnaround.
| Brand | Model |
|---|---|
| Agilent Technologies | DSO1024A |
| Fluke | 123B |
| Fluke | 125B |
| Fluke | 190-104 |
| GW Instek | GDS-3352 |
| Keysight | DSOX1102G |
| Keysight | DSOX2012A |
| Rigol | DS1104Z |
| Tektronix | 2225 |
| Tektronix | MDO3022 |
| Tektronix | MDO3034 |
| Tektronix | MSO24 |
| Tektronix | TBS1052B |
| Tektronix | TBS1072C |
| Tektronix | TBS2204B |
| Tektronix | TDS 1002B |
| Tektronix | TDS1012 |
| Tektronix | TDS2012C |
| Tektronix | TDS2024C |
| Tektronix | TDS320 |
| Tektronix | TPS2024B |
| UNI-T | UTD1025DL |
| UNI-T | UTD1050DL |
| Yokogawa | DL 1740 |
Don't see your model? Send us the make and model — or WhatsApp us a photo of the nameplate — and we'll confirm capability and quote.
Questions
Digital Storage Oscilloscope (DSO) calibration FAQ
How often should a digital storage oscilloscope (DSO) be calibrated?
Oscilloscopes should be calibrated every 12 months. Instruments used in acceptance testing, safety testing or precision waveform measurement should carry a current certificate.
Is digital storage oscilloscope (DSO) calibration accredited?
Yes. Digital Storage Oscilloscope (DSO) calibration is covered under our SAC-SINGLAS scope of accreditation (LA-2023-0845-C, ISO/IEC 17025), covering bandwidth 50 kHz to 1100 MHz, vertical deflection to ±130 V and timebase 2 ns to 5 s. Certificates state the measured values and measurement uncertainty, traceable to national and international standards. Where an instrument falls outside the accredited ranges, we can calibrate it as a traceable service instead.
How long does digital storage oscilloscope (DSO) calibration take?
Standard turnaround is 5 to 7 working days; express service is 2 to 3 working days. Collection and delivery in Singapore are free for orders above $300.
Which brands of digital storage oscilloscope (DSO) do you calibrate?
Commonly submitted brands include Agilent Technologies, Fluke, GW Instek, Keysight, Rigol, Tektronix, UNI-T and Yokogawa. This list covers the models customers most often send in, not our full capability — send us your make and model and we'll confirm whether it falls within our accredited scope or can be calibrated as a traceable service.
Need digital storage oscilloscope (DSO) calibration?
Submit your instrument list — we'll confirm capability, turnaround and pricing, no obligation.