EPN70 Optical Power Meter Calibration

The EPN70 Optical Power Meter supports manual calibration, with a recommended interval of three years, using traceable reference standards to ensure measurement accuracy.Manual Calibration ProcedureThe EPN70 series allows manual calibration to maintain accurate optical power readings for 1310 nm, 1490 nm, and 1550 nm wavelengths . To perform calibration:Power on the device and select the OPM mode using the designated keys .Press the REF/Enter key to check the current reference value.To set a new reference, press and hold the REF/Enter key for 2 seconds to save the current measurement as the new reference value .Use the Save/ReCall key to store or retrieve calibration data for future measurements.Ensure the device is connected to a stable optical source with known power levels for accurate calibration.Recommended Calibration IntervalTribrer recommends a three-year calibration interval for the EPN70 series under normal operating conditions . This interval ensures that the meter maintains its specified accuracy, which is critical for PON network testing and pass/fail assessments.Calibration Standards and TraceabilityOptical power meter calibration should follow national and international standards. The process involves comparing the device under test (DUT) to a working standard with higher accuracy, which is itself calibrated against a reference standard traceable to national metrology institutes such as NIST (USA), PTB (Germany), or NPL (UK), . This ensures that measurements are traceable and internationally recognized.Practical TipsAlways use the same type and capacity of batteries during calibration to avoid measurement errors .Perform calibration in a controlled environment to minimize temperature and humidity effects.Document calibration results and maintain a certificate of calibration for compliance and quality assurance purposes .For automated calibration, consider using systems like EXFO's IQS-12002, which streamline verification and traceability for optical power meters . By following these procedures, the EPN70 Optical Power Meter can provide reliable and accurate measurements for fiber optic network testing, ensuring compliance with industry standards and maintaining measurement integrity.