KMS traffic metering box

KMS traffic metering boxIt is an on-site 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 measuring steam, gas, natural gas, and liquids

Automatically perform density compensation, Reynolds number compensation, and coefficient of expansion compensation

Equipped with functions such as small traffic billing, stop gas judgment, over plan consumption billing, power outage recording, and paperless recording, meeting the needs of trade settlement measurement

Can automatically save 65536 sets of the latest historical data, and automatically draw historical curves such as flow rate, temperature, pressure, etc

Intelligent fault-tolerant function - when temperature and pressure compensation measurement signals are abnormal, the corresponding manual set values are automatically used for compensation calculation

There are no adjustable devices such as potentiometers or coded switches inside the instrument, thereby improving its vibration resistance, stability, and reliability

Specially designed WDT circuit, power on reset circuit, and power-off data protection circuit ensure that the instrument operates normally when powered on and that power-off data is not lost. Power outage data protection does not require backup batteries, with a protection time of 10 years

High definition Chinese and character display of all key parameters, with screen saver function to extend screen lifespan

Set the data recall function to record all modifications made to the set data after factory settings, and display them on the query screen

Backup power function, automatic system switching, instrument can work normally for 72 hours after power failure

KMS flowmeterProduct parameters for measuring boxes:

Measure the flow input signal

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

Frequency flow signal (f) frequency: 1~10000 Hz

Measurement of pressure input signal (AI2): 4~20mA DC

Measure temperature input signal

Thermistor Pt 100 division, thermocouple K, E division, etc

Current: 4~20mA DC

basic error

Frequency signal input: ± 0.1% of the reading value

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

± 0.1% of the reading value (when t>300 ℃)

Current and voltage input: ± 0.1% of full range

Current output: ± 0.1% of full scale

Compensated flow display: ± 0.1% of full range

communication

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

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

Transmission media: GPRS, RS485, fiber optic, etc

Display capability

Display with 3.5 "320 × 240 graphic dot matrix high-definition, 65K true color TFT

Display all key parameters in Chinese and characters on a single screen

Accumulated flow and heat display: up to 8 digits

Display of parameters such as instantaneous flow rate, instantaneous heat, fluid temperature, fluid pressure, etc.: up to 6 digits

Display temperature with one decimal place. When displaying instantaneous flow and pressure, the decimal place is determined by the set data