HK-3000A color display batching controller for electronic belt feeder; supporting the DCS system can be connected; dosing machine metering accuracy 0.05%, DCS, 485 interface, control of high precision, easy school say! Simple operation. Is digital, LCD perfect alternative! I choose the right! Chapter One Introduction 1 Notes A, non-instrument ground wire connected to ground zero line or shared with other appliances, must be independent of well grounded. B, the power supply is strictly prohibited and frequent power or start sharing equipment. C, to protect the operation of the instrument front panel, can not help but draw scraping with a hard object or hot iron damage. D, non-professional maintenance personnel is prohibited to open the case. E, before opening the cabinet must ensure unplug it. F, on the power supply wiring must contact is good, may not have received similar non-connected conditions. 2. Overview HK-3000 is static, dynamic measurement dedicated smart meter. It combines measurement and control functions into one, with a constant speed, speed, weight loss and other body supporting the use of scales, weighing and batching achieve a variety of materials. Instruments using high performance, high anti-jamming, industry-specific microcontroller, with RS-485 communication interface, easy access to the DCS system. Intelligent PID output can drive actuators such as closed-loop control. 3, the system performance of A, a dedicated industrial control chip, the system is stable, reliable operation. B, low temperature drift, low-noise signal conditioning chip, ensure that the signal is stable. C, EEROM protection parameters and yield data is never lost. D, ambient temperature: 0 to 45 degrees. E, the measurement accuracy: better than 0.05%. F, display / keyboard: 3.5-inch color LCD screen, 16 touch buttons. G, you can control a variety of body measurement scale (constant speed governor scales weighing scales weight loss). H, switch input and output full optical isolation. I, Road analog input and output. J, pulse rate input. 0 ~ 2500Hz. K, with an external switch to start, stop, etc. DCS input interface. L, there is ready to run, such as DCS alarm output interface. M, digital input function. N, support standard MODBUS-RTU protocol to communicate with the host computer, the configuration. 4, the technical indicators: 1, Power supply: AC220V ± 10% 50HZ. 2, A / D conversion: 0-65535 3 digital, analog control outputs: DC0-5V. 4, for the sensor interface: Power: DC9V / 120mA Input: 0-20mv. 5, the contact output: mechanical contact 220V / 1A. 6, the pulse speed input: 0-2500Hz 7, RS485 communication distance: 1200m (scalable) 8, LCD display Chinese characters. 9: External setting input: 4 ~ 20mA 0 ~ 20mA 0 ~ 10mA 10: Current flow output: 4 ~ 20mA 0 ~ 20mA 0 ~ 10mA