◆ Measuring method: Potassium dichromate high-temperature digestion –colorimetric determination method (improved based on the method described in GB11914-89);
◆ Measuring range: (0-500) mg/l, (0-2000) mg/l &(0-5000) mg/l; these three ranges are available;
◆ Max measuring range: 0-40000 mg/l (after automatic dilution);
◆ Print: Reserved printer interface to connect an external industrial micro-printer (optional);
◆ Storage: 20000 data; no loss of data in the case of power failure; automatic coverage of earliest data when the memory is full; (the memory with a capacity of 40000 data may be added;)
◆ Communication interface: One-channel RS232 digital interface or RS485; support the MODBUS communication protocol or self-defined protocol; 1-channel analog signal: 4-20 ma (with the range corresponding to 20 ma adjustable);
◆ Pretreatment system: Auto cleaning, back flushing and precision filtration; ensure good representativeness of samples and avoid pipe blockage by large suspended particles, thereby ensuring data continuity (optional);
