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KMS flow metering box is a local display and accumulation unit for flow measurement, which can be combined with various flow transmitters and sensors to form a high-precision flow measurement system.

Product performance:

Suitable for steam, gas, natural gas and liquid measurement;

Automatic density compensation, Reynolds number compensation and expansibility coefficient compensation;

With small flow accounting, stop steam judgment, over scheduled consumption accounting, power failure record, paperless record function, to meet the needs of trade settlement measurement;

Can automatically save 65,536 groups of the latest historical data, automatically draw flow, temperature, pressure and other historical curves;

Intelligent fault tolerance function -- when the temperature and pressure compensation measurement signal is abnormal, the corresponding manual setting value is automatically used to compensate the calculation;

The instrument is not equipped with any adjustable devices such as potentiometer, coding switch, so as to improve the vibration resistance, stability and reliability of the instrument;

Specially designed WDT circuit, power-on reset circuit and power-off data protection circuit ensure the normal operation of the instrument with power-off data without loss. Power off data protection without backup battery, protection time of 10 years;

Hd Chinese and character display all key parameters, and has a screen saver function, prolong the screen life;

Set data recall function, will be factory Settings after the modification of the set data, record all, and can be displayed in the query screen;

Backup power function, the system automatically switch, after power off the instrument can work for 72 hours;

Key parameters:

Measuring the flow input signal;

Analog flow signal (AI1) : 4 ~ 20mA DC;

Frequency Flow signal (f) Frequency: 1 ~ 10,000 Hz;

Measuring pressure input signal (AI2) :4 ~ 20mA DC;

Measuring temperature input signal;

Thermal resistance Pt 100, thermocouple K, E, etc.;

Current: 4 ~ 20mA DC;

Basic error

Frequency signal input: ± 0.1% of reading value;

Temperature signal input: ±0.3℃ (t ≤ 300℃);

Reading value ± 0.1% (t >300℃);

Current and voltage input: ± 0.1% of full scale;

Current output: ± 0.1% of full scale;

After compensation flow display: full scale ± 0.1%;

communication

Communication interface: RS-485 or RS-232 serial interface (photoelectric isolation);

Communication rate: 9600, 4800, 2400 or 1200 baud rate;

Transmission media: GPRS, RS485, optical fiber, etc.

Display capability

With 3.5 "320×240 graphic lattice HD, 65K true color TFT display;

Display all key parameters in Chinese and characters in one screen;

Cumulative flow, cumulative heat display: up to 8 digits;

Instantaneous flow, instantaneous heat, fluid temperature, fluid pressure and other parameters display: up to 6 digits;

Display temperature with 1 decimal place. When displaying instantaneous flow and pressure, the decimal number is determined by setting data;

System application: