SAC-SINGLAS Accredited · ISO/IEC 17025
Power Quality Analyzer Calibration in Singapore
Unitest calibrates power quality and harmonic analyzers in Singapore — including Hioki and Fluke — across AC voltage to 1020 V, AC current to 30.2 A and AC power 0.02 W to 1500 kW, 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: Harmonic Analyzer · Power Quality/Harmonic Analyzer · PQ Analyzer
Why calibrate?
Unitest calibrates power quality analyzers and harmonic analyzers in Singapore, verifying AC voltage, AC current, frequency and power measurements against traceable ISO/IEC 17025 references. Power quality data is used for energy auditing and compliance — calibration ensures the data can be trusted.
What you receive
What power quality analyzer 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 electrical calibration service, accredited under SAC-SINGLAS LA-2023-0845-C.
How often
How often should a power quality analyzer be calibrated?
Power quality analyzers are typically calibrated every 12 months. Instruments used for energy audit reporting or SS 473 compliance should carry a current certificate.
Accredited ranges
Power Quality Analyzer 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.
AC Voltage measuring instruments· UNI-E001 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 1.0 mV to 12 mV, 3 Hz to 5 Hz | 1.6% |
| 1.0 mV to 12 mV, >5 Hz to 10 kHz | 1.0 % |
| 1.0 mV to 12 mV, >10 kHz to 20 kHz | 0.65 % |
| 1.0 mV to 12 mV, >20 kHz to 50 kHz | 0.66 % |
| 1.0 mV to 12 mV, >50 kHz to 100 kHz | 1.7 % |
| 1.0 mV to 12 mV, >100 kHz to 500 kHz | 3.9 % |
| 12 mV to 120 mV, 3 Hz – 5 Hz | 0.32 % |
| 12 mV to 120 mV, >5 Hz – 10 kHz | 0.17 % |
| 12 mV to 120 mV, >10 kHz – 20 kHz | 0.065 % |
| 12 mV to 120 mV, >20 kHz – 50 kHz | 0.11 % |
| 12 mV to 120 mV, >50 kHz – 100 kHz | 0.25 % |
| 12 mV to 120 mV, >100 kHz – 500 kHz | 1.3 % |
| 120 mV – 1.2 V, 3 Hz – 5 Hz | 0.42 % |
| 120 mV – 1.2 V, >5 Hz – 10 Hz | 0.15 % |
| 120 mV – 1.2 V, >10 Hz – 40 Hz | 0.6 % |
| 120 mV – 1.2 V, >40 Hz – 20 kHz | 0.13 % |
| 120 mV – 1.2 V, >20 kHz – 50 kHz | 0.047 % |
| 120 mV – 1.2 V, >50 kHz – 100 kHz | 0.11 % |
| 120 mV – 1.2 V, >100 kHz – 500 kHz | 0.41 % |
| 1.2 V – 12 V, 3 Hz – 5 Hz | 0.33 % |
| 1.2 V – 12 V, >5 Hz – 10 Hz | 0.5 % |
| 1.2 V – 12 V, >10 Hz – 40 Hz | 0.6 % |
| 1.2 V – 12 V, >40 Hz – 20 kHz | 0.018 % |
| 1.2 V – 12 V, >20 kHz – 50 kHz | 0.035 % |
| 1.2 V – 12 V, >50 kHz – 100 kHz | 0.081 % |
| 1.2 V – 12 V, > 100 kHz – 500 kHz | 0.25 |
| 12 V – 120 V, >3 Hz – 5 Hz | 0.32 % |
| 12 V – 120 V, >5 Hz – 10 Hz | 0.50 % |
| 12 V – 120 V, >10 Hz – 40 Hz | 0.045 % |
| 12 V – 120 V, >40 Hz – 20 kHz | 0.092 % |
| 12 V – 120 V, >20 kHz – 50 kHz | 0.036 % |
| 12 V – 120 V, >50 kHz – 100 kHz | 0.082 % |
| 120 V – 330 V, 3 Hz – 5 Hz | 0.50 % |
| 120 V – 330 V, >5 Hz – 10 Hz | 0.16 % |
| 120 V – 330 V, >10.1 Hz – 20 kHz | 0.021 % |
| 120 V – 330 V, >20 kHz – 50 kHz | 0.039 % |
| 120 V – 330 V, >50 kHz – 100 kHz | 0.17 % |
| 330V – 1020 V, 3 Hz – 5 Hz | 0.29 % |
| 330V – 1020 V, >5 Hz – 10 Hz | 0.12 % |
| 330V – 1020 V, >10 Hz – 10 kHz | 0.04 % |
AC Current measuring instruments· UNI-E001 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 10 µA – 120 µA, >3 Hz – 22.5 Hz | 0.14 % |
| 10 µA – 120 µA, >22.5 Hz – 45 Hz | 0.06 % |
| 10 µA – 120 µA, >45 Hz – 1 kHz | 0.06 % |
| 10 µA – 120 µA, >1 kHz – 5 kHz | 0.06 % |
| 10 µA – 120 µA, >5 kHz – 10 kHz | 0.14 % |
| 10 µA – 120 µA, >10 kHz – 30 kHz | 3.4 % |
| 120 µA – 1.2 mA, 3 Hz – 22.5 Hz | 0.14 % |
| 120 µA – 1.2 mA, >22.5 Hz – 45 Hz | 0.11 % |
| 120 µA – 1.2 mA, >45 Hz – 1 kHz | 0.12 % |
| 120 µA – 1.2 mA, >1 kHz – 5 kHz | 0.11 % |
| 120 µA – 1.2 mA, >5 kHz – 10 kHz | 0.24 % |
| 120 µA – 1.2 mA, >10 kHz – 30 kHz | 4.8 % |
| 1.2 mA – 12 mA, 3 Hz – 45 Hz | 0.11 % |
| 1.2 mA – 12 mA, >45 Hz – 1 kHz | 0.11 % |
| 1.2 mA – 12 mA, >1 kHz – 5 kHz | 0.11 % |
| 1.2 mA – 12 mA, >5 kHz – 10 kHz | 0.24 % |
| 1.2 mA – 12 mA, >10 kHz – 30 kHz | 1.4 % |
| 12 mA – 120 mA, 3 Hz – 45 Hz | 0.11 % |
| 12 mA – 120 mA, >45 Hz – 1 kHz | 0.06 % |
| 12 mA – 120 mA, >1 kHz – 5 kHz | 0.018 % |
| 12 mA – 120 mA, >5 kHz – 10 kHz | 0.24 % |
| 12 mA – 120 mA, >10 kHz – 30 kHz | 1.4 % |
| 120 mA – 1.2 A, 3 Hz – 45 Hz | 0.34 % |
| 120 mA – 1.2 A, >45 Hz – 1 kHz | 0.068 % |
| 120 mA – 1.2 A, >1 kHz – 5 kHz | 0.09 % |
| 120 mA – 1.2 A, >5 kHz – 10 kHz | 0.5 % |
| 120 mA – 1.2 A, >10 kHz – 30 kHz | 0.8 % |
| 1.2 A – 3.1 A, 3 Hz – 45 Hz | 0.25 % |
| 1.2 A – 3.1 A, >45 Hz – 1 kHz | 0.06 % |
| 1.2 A – 3.1 A, >1 kHz – 5 kHz | 0.06 % |
| 1.2 A – 3.1 A, >5 kHz – 10 kHz | 0.3 % |
| 3.1 A – 12 A, 3 Hz – 45 Hz | 0.12 % |
| 3.1 A – 12 A, >45 Hz – 1 kHz | 0.05 % |
| 3.1 A – 12 A, >1 kHz – 5 kHz | 0.07 % |
| 3.1 A – 12 A, >5 kHz – 10 kHz | 0.29 % |
| 12 A – 30.2 A, 3 Hz – 45 Hz | 0.21 % |
| 12 A – 30.2 A, >45 Hz – 1 kHz | 0.14 % |
| 12 A – 30.2 A, >1 kHz – 5 kHz | 0.57 % |
AC Power measuring instruments· UNI-E001 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 0.02 W – 0.5 W | 0.60 % |
| >0.5 W – 5 W | 0.14% |
| >5 W – 50 W | 0.23 % |
| >50 W – 1000 W | 0.7 % |
| >1 kW – 5 kW | 2.3 % |
| >5 kW – 20 kW | 2.3 % |
| >20 kW – 30 kW | 3 % |
| With Coil 30 kW – 1500 kW | 4 % |
Frequency measuring instruments· UNI-E001 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 0.01 Hz – 119.99 Hz | 0.018 % |
| 120.0 Hz – 1199.9 Hz | 0.0014 % |
| 1.200 kHz – 11.999 kHz | 0.0011 % |
| 12.00 kHz – 119.99 kHz | 0.00057 % |
| 120.1 kHz – 1199.9 kHz | 0.53 % |
| 1.200 MHz – 2.000 MHz | 0.00027 % |
You can also verify our accreditation on the SAC-SINGLAS directory.
Brands & models
Power Quality Analyzer 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 |
|---|---|
| Fluke | 345 PQ |
| Fluke | 1775 |
| Hioki | PQ3100 |
| Hioki | PQ3198 |
| Hioki | PW3198 |
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
Power Quality Analyzer calibration FAQ
How often should a power quality analyzer be calibrated?
Power quality analyzers are typically calibrated every 12 months. Instruments used for energy audit reporting or SS 473 compliance should carry a current certificate.
Is power quality analyzer calibration accredited?
Yes. Power Quality Analyzer calibration is covered under our SAC-SINGLAS scope of accreditation (LA-2023-0845-C, ISO/IEC 17025), covering AC voltage to 1020 V, AC current to 30.2 A and AC power 0.02 W to 1500 kW. 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 power quality analyzer 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 power quality analyzer do you calibrate?
Commonly submitted brands include Fluke and Hioki. 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.
Related
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Clamp Meter calibration →Browse every instrument type on the Find Your Instrument page.
Need power quality analyzer calibration?
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