I. Preliminary Preparation
Prepare a dedicated multi-channel analog signal generator for hot runner systems, equal-length BNC coaxial cables, a BNC synchronization distributor, a dual-channel or higher oscilloscope, and an anti-static wrist strap.
Confirm that all equipment is powered normally, and that the signal generator has completed self-calibration beforehand, with an output accuracy level ≥ ±0.05%FS.
II. Hardware Synchronization Link Setup
Connect the synchronization trigger output port of the master signal source to the external trigger input ports of all slave signal sources using equal-length BNC cables via the BNC synchronization distributor.
Check that all terminals are free of loose connections and oxidation, ensuring that there is no additional delay or deviation in trigger signal transmission.
III. Master-Slave Channel Parameter Configuration
Strictly follow the "master first, slave second" power-on sequence. First, start the master signal source and enter the system settings interface to select "internal" as the clock source, serving as the sole clock reference source for the entire system.
Then, start all slave signal sources sequentially, uniformly setting the clock source of all slaves to "external," forcing them to operate according to the clock reference of the master signal source.
Select square wave output for the main channel, enable the BURST function, set the type to "Infinite," select "Manual" for the trigger source, and set the trigger output to "Rising Edge."
Select output waveforms for all slave channels that are identical to the main channel parameters, enable the BURST function, set the type to "Infinite," select "External" for the trigger source, and set the trigger input to "Rising Edge."
IV. Synchronization Trigger and Deviation Calibration
Confirm that all channel output switches are off. Click the "Manual Trigger" button under the main channel's BURST function. All channels will synchronously enter the output standby state.
Turn on the output switches of all channels sequentially. Use an oscilloscope to acquire the output signals of all channels. Fine-tune the time phase difference for each channel using the delay parameter in the BURST menu until the synchronization deviation of all channel signals is ≤0.01s.
V. Synchronization State Fixing and Verification
Enter the Utility menu for all signal sources and set the power-on startup option to "Last Value." The device will automatically load the configured synchronization parameters upon the next power-on, eliminating the need for repeated settings.
Run continuously for 30 minutes, acquiring synchronization deviation data every 5 minutes to confirm that there is no drift or loss of synchronization over time, and that the synchronization state is stable.
VI. Troubleshooting
If synchronization deviation exceeds the standard, quickly locate the abnormal channel through group isolation testing and waveform comparison. Investigate issues such as loose wiring and incorrect parameter configuration. After correction, recalibrate the synchronization deviation.
This tutorial is fully adaptable to industrial scenarios involving batch calibration of multi-channel hot runner systems. The operation steps are clear and practical, enabling rapid high-precision synchronous output of multiple analog signals.
