NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for power quality analysers, harmonic meters, and energy loggers. THD, W/VA/VAR/PF. IEC 61000-4-30 Class A & S. Fluke 435, Hioki PW3390, all makes.
±0.1%
Accuracy
W/VA/PF/THD
Functions
IEC 61000-4-30
Standard
IEC 61000-4-30
Power Quality Measurement Standard
NABL Accredited
CC-2480
— WHAT IS POWER ANALYSER CALIBRATION —
Think of a quality lab that relies on a power analyser for daily measurements. If it has drifted even slightly from its true value, every reading becomes unreliable — leading to defective products, failed audits, or safety risks. Regular calibration is the only way to confirm your instrument is telling the truth.
Power Analyser calibration means comparing its readings against a NABL-traceable certified reference standard at multiple test points, recording the deviations, adjusting where possible, and issuing an NABL certificate — accepted by ISO 9001, IATF 16949, and all quality auditors.
Compare readings against a NABL-traceable reference standard across the full measurement range.
Adjust or document deviations so your instrument reads within accepted tolerance.
Issue a NABL-accredited certificate (CC-2480) with full traceability documentation.
— INSTRUMENTS COVERED —
Fluke 435 / Hioki PW3390 / Energy Logger / THD Meter / CT Input / Flicker Recorder · NABL
Single and three-phase power analyzers for complete power measurement.
Digital power analyzers (Fluke brand) for precision power testing.
Harmonic analyzers for THD and individual harmonic order analysis.
Power quality meters for voltage sag, swell, flicker, and unbalance measurement.
Precision wattmeters for active power measurement in AC/DC circuits.
Power loggers and recorders for long-term power quality monitoring.
— OUR PROCESS —
Power analyser received. Number of voltage and current channels, current input type (direct / CT / clamp), and analysis functions documented.
NABL-traceable precision AC power source (V + I synthesizer with harmonic generation) connected to analyser. Known THD% waveform generated.
Voltage and current channels calibrated at 5 setpoints at 50 Hz. W, VA, VAR, and PF readings verified against reference values.
THD and individual harmonic (3rd, 5th, 7th) readings verified against known synthesized harmonic source with documented THD%. Percentage error recorded.
Error at each calibration setpoint documented. Expanded uncertainty (k=2) per GUM for V, A, W, and THD functions.
NABL CC-2480 certificate with power quality data, THD verification, deviations, uncertainty (k=2), IEC 61000-4-30 traceability.
— STANDARDS & COMPLIANCE —
IEC 61000-4-30
Power Quality Measurement Methods
IEC 61000-4-7
Harmonic & Interharmonic Measurement
EN 50160
Voltage Characteristics in LV Networks
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Power analyser certificates accepted by ISO 9001, energy audit, EN 50160 compliance bodies, and all process industry QMS audit bodies.
— NON-NABL CALIBRATION —
For routine maintenance, bulk calibration, or internal QC checks where a full NABL certificate is not mandatory — Prism offers cost-effective non-NABL calibration using the same NABL-traceable reference standards and trained engineers.
All non-NABL work uses NABL-certified reference standards — readings are still reliable and defensible.
Without full NABL documentation, instruments return faster — ideal for urgent production schedules.
Non-NABL calibration costs less — practical for large batches or routine periodic checks.
Available at your facility or at our Vatva lab — same quality, more flexibility.
— AREAS WE SERVICE —
Courier pick-up and delivery. 1-day turnaround for most power analysers.
Why Choose Prism
Since 2004, every NABL power analyser certificate from Prism has been accepted by ISO 9001 and energy audit bodies — no rejections.
— FAQ —
Get In Touch
Share the make/model, channel count, and functions required. We respond within 2 business hours.
— FROM OUR BLOG —
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Read MoreNABL Accreditation Disclaimer
Calibration services are provided under NABL Certificate CC-2480 in strict accordance with our officially approved scope of accreditation (ISO/IEC 17025:2017). Parameters falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.