I. Time Cycle Triggered Recalibration: Under normal usage scenarios, the calibration cycle is 1 year. For hot runner production lines with high-frequency use (average daily operation exceeding 8 hours), recalibration is required every six months.
If equipment has been shut down for more than 3 months and then restarted, recalibration must be completed before putting it back into use.
II. Accuracy Deviation Triggered Recalibration: If the output signal fails the performance verification test using a reference calibrator, recalibration is required.
For models with a nominal accuracy of ±0.1%FS, an actual output deviation exceeding ±10mV requires recalibration.
III. Hardware Anomaly Triggered Recalibration: If the equipment has experienced abnormal operating conditions such as drops, strong electromagnetic shocks, overvoltage, or overload, the internal circuit parameters are likely to drift, necessitating recalibration.
If the equipment displays errors related to crystal oscillator accuracy or output channels during self-testing, recalibration is required after ruling out hardware faults.
IV. Synchronization Performance Triggered Recalibration: If the multi-channel synchronization deviation exceeds 0.01s and cannot be corrected through conventional parameter adjustments, recalibration is required.
If the synchronization deviation drift exceeds 0.005 seconds after 30 minutes of continuous operation, recalibration is required.
V. Compliance-Triggered Recalibration Before factory ISO system audits and product certifications, recalibration must be completed and a valid calibration certificate obtained to ensure traceability of measurement values.
Before major technical upgrades to hot runner systems and batch temperature control channel calibrations, the signal generator must be recalibrated in advance to avoid inaccurate calibration results.
