English Translation (Standard Bidding Technical Specification Version)
1. Overall Machine Structure: Integrated all-in-one structure integrating LCD touch screen, touch buttons, liquid crystal knobs and a panel of common interfaces.
2. System Stability: The control units for touch buttons and liquid crystal knobs are independent, each equipped with a separate MCU microcontroller. Faults in one module will not affect the operation of the other module.
3. CPU Configuration: Adopts an ARM-architecture CPU with no less than 4 cores, a main frequency of ≥2.0GHz, built-in NPU computing power of ≥1 TOPS, an integrated GPU supporting OpenGL/OpenCL, and a memory capacity of ≥2GB.
4. The LCD touch screen shall be tested in accordance with GB/T 18910.61-2021. The effective diagonal size of the displayed image shall be ≥25.5cm, the display resolution shall be ≥1280×800, crosstalk shall be ≤0.36%, no defects shall be found in mura inspection, and color reproducibility Sxy ≤0.088. (A scanned copy of the test report bearing CMA or CNAS marks shall be submitted during bidding.)
5. Touch Screen: The touch panel adopts G+G glass material, capacitive touch technology and full lamination process. The touch panel is an integrated seamless large panel with no gaps between each functional module.
6. Liquid Crystal Buttons: Designed with intelligent knobs. Equipped with at least 1 set of standard banana jacks for regulated DC output and at least 1 set of standard banana jacks for regulated AC output, supporting switching between AC and DC output modes.
7. Knob Display: The outer diameter of the knob is ≥49mm. The center of the knob is fitted with no less than 2 groups of 3-digit LED digital tubes, which can display real-time voltage and current values; voltage adjustment is supported via the knob.
8. DC Output: At least 1 channel of adjustable DC output ranging from 0 to 30V with a maximum current of 2A.
9. AC Output: At least 1 channel of adjustable AC output ranging from 0 to 30V with a maximum current of 2A; the output waveform is a 50Hz square wave.
10. Voltage Accuracy: The accuracy of output voltage is ±0.2V.