Oscilloscope
Calibrate oscilloscopes verifying voltage accuracy, timebase, and bandwidth specifications.
Standards
IEEE 1057, ISO/IEC 17025
Typical Interval
12 months
Uncertainty Range
±1–3% of full scale
What Is Oscilloscope?
Oscilloscope calibration covers voltage accuracy across all ranges, timebase accuracy, edge response, and bandwidth. For oscilloscopes used in R&D, circuit design, and EMC testing, instrument accuracy is critical to drawing correct conclusions from waveform measurements.
Applicable Standards
Primary standards: IEEE 1057, ISO/IEC 17025
ISO/IEC 17025-accredited laboratories must maintain an unbroken traceability chain from the calibration result back to NIMT (Thailand's national metrology institute) or another internationally recognised NMI.
Typical Measurement Uncertainty
Expanded uncertainty is typically ±1–3% of full scale, depending on the measurement range, reference equipment used, and environmental conditions. The actual uncertainty will be stated on your calibration certificate.
Recommended Calibration Interval
A calibration interval of 12 months is generally recommended. The appropriate interval for your specific instrument depends on usage frequency, environmental exposure, and any applicable regulatory or customer requirements.
What Your Calibration Certificate Will Include
- Calibration results — instrument indication vs. reference value at each test point
- Error and expanded uncertainty (U) at k=2 (95% confidence level)
- Traceability chain to NIMT or a recognised NMI
- Environmental conditions during calibration (temperature, humidity)
- Calibration date, certificate number, and authorised signature
Find a Oscilloscope Calibration Lab in Thailand
ThaiLabHub lists ISO 17025-accredited calibration laboratories across Thailand. Search our directory to find labs that offer oscilloscope services, with scope details, location, and contact information.
For Labs: Manage Oscilloscope Jobs with LabSync
LabSync helps Thai calibration laboratories manage jobs, issue traceable certificates, calculate GUM uncertainty budgets, and generate Thai tax reports (PP30 + WHT) — all in one system.
Frequently Asked Questions
Why is it important to calibrate a Oscilloscope?+
Uncalibrated Oscilloscopes can have drift errors that cause false readings, leading to incorrect safety assessments or product failures. Regular calibration ensures measurements remain traceable to national/international standards and meet regulatory requirements such as IEEE 1057, ISO/IEC 17025.
How often should a Oscilloscope be calibrated?+
Most Oscilloscopes should be calibrated every 12 months under normal operating conditions. High-use environments, harsh conditions (vibration, temperature extremes), or regulatory requirements (FDA, GMP, ISO 17025) may necessitate more frequent calibration. Always follow the manufacturer's recommended interval as a baseline and consult your lab's quality plan.
What does a Oscilloscope calibration certificate show?+
A calibration certificate issued under ISO/IEC 17025 includes: the instrument identification (make, model, serial number), the reference standards used (with their own traceability chain), the measurement points tested, before/after correction values, the expanded measurement uncertainty (±1–3% of full scale), the environmental conditions during calibration, the calibration date and next-due date, and the signature of the authorized calibration engineer. This certificate is the evidence required for audits and accreditation.
Labs offering electrical calibration
Nakhon Ratchasima Metrology Center
Nakhon Ratchasima
ISO/IEC 17025:2017Phuket Marine Calibration Center
Phuket
ISO/IEC 17025:2017Eastern Seaboard Calibration Center Chonburi
Chonburi
ISO/IEC 17025:2017National Institute of Metrology Thailand (NIMT)
Pathum Thani
ISO/IEC 17025:2017 (TIS 17025-2561)Central Calibration Laboratory Bangkok
Bangkok
ISO/IEC 17025:2017Nonthaburi Precision Laboratory
Nonthaburi
ISO/IEC 17025:2017Related Calibration Services
Manage calibration with LabSync
Track instruments, schedule calibrations, and generate ISO 17025-ready certificates automatically.