The PT650H and PT650D both belong to the Zhuhai Zhimei series of industrial weighing instruments, with highly overlapping core basic parameters. The main differences lie in power supply range, sampling performance, and functional positioning. The PT650H is an upgraded version for more complex working conditions, while the PT650D is a cost-effective general-purpose model.
⚡ Power supply and hardware differences
PT650H: Supports ultra-wide power supply, covering 90~264VAC AC and 9~60VDC DC, adapting to more non-standard power supply scenarios in industrial settings. Utilizes SMT surface-mount technology, resulting in a more compact design and enhanced reliability.
PT650D: Supports only standard industrial wide-range AC 110/220V±10% adaptive power supply, no DC power option available, with a traditional industrial-grade circuit layout to meet conventional operating conditions power requirements.
📊 Weighing performance differences
PT650H: Equipped with a 24-bit high-precision AD conversion chip, it achieves a maximum sampling speed of 500 times per second, supports internal resolution up to 200,000, and features built-in dynamic filtering algorithms to suppress strong mechanical vibration interference, with zero drift controlled at 0.002%FS/°C.
PT650D: Equipped with a Delta-sigma conversion chip, it features a sampling speed of up to 200 times per second, internal resolution up to 16 million, and maximum support for 10,000 divisions, fully meeting the precision requirements of conventional industrial weighing.
🛠️ Functional and adaptation scenario differences
PT650H: Equipped with multi-formula storage (up to 50 sets) as standard, supports dual communication interfaces (RS485 standard, Ethernet optional), can interface with MES systems for data traceability, some versions support explosion-proof certification, suitable for high-precision, high-complexity automated batching scenarios such as foam production and chemical manufacturing.
PT650D: Featuring modular functional design, the basic model retains only core weighing functions, with communication and analog output as optional add-ons. It includes a built-in single-material simple batching program, emphasizing high versatility and cost-effectiveness, suitable for common industrial scenarios such as standard platform scales, floor scales, and single-bin quantitative weighing.
