Общие тепловой энергии метр (Ду15)

General Instruction Common Heat Energy Meter can measure heat power passed through pipes. It consists of flow sensor, microprocessor and temperature sensor. Microprocessor obtains flow signals through flow sensor and signals of water temperature at the entrance or exit by temperature measuring circuit, and then it will calculate the released heat power by heat-carrying liquid according to the standard of heat calculation formula. It also can be used to measure cold power if connect temperature sensors reversely. Characteristics 1. Latest patent technique of wireless digital monitoring to supervise and calculate heat power. 2. No mechanic gears, no magnetism sensor, wear resistance, anti-corrosive and anti-attack. 3. Alarming when low voltage. 4. Alarming when temperature sensor is disconnected or in case of short circuit. 5. Flow has 8 levels and can be separately adjusted automatically, high accuracy. 6. Smart lower power consumption according to flow speed. 7. Update online. 8. Data backup and automatic correction. 9. Ultra-low energy consumption. Standard European Standard EN1434 and 01ML-R75 International Standard CJ128-2000 Heat Meter Issued by State Construction Department of China Technique Specifications Flow Sensor Caliber Common Flow Rate Min Flow Rate Max Flow Rate 15mm 1500L/h30L/h 3000L/h20mm 2500L/h50L/h 5000L/h25mm 3500L/h70L/h 7000L/hMin Flow Rate for Display: 0.01m3 (working state) 0.00001m3 (testing state) Min Heat Power for Display: 1kWh (working state) 0.001kWh (testing state) Working Condition of Temperature Sensor Min Temperature Difference 1 or 3 Celsius Max Temperature Difference 90 Celsius Min Display Temperature 0.1 Celsius Static Working Current < 7μA Battery Service Life > 5 years Digit Number of LCD 8 numbers Max Accumulated Working Time 4.2x109 hours (Meter only displays final 8 numbers when accumulated working time is more than 99999999 hours) Max Accumulated Flow Rate 4.2x109 m3 (Meter only displays final 8 numbers when accumulated flow rate is more than 999999.99m3 ) Accuracy Grade or Grade Pressure Resistance 1.6MPa Pressure Loss ≤0.025MPa Model RLB---common heat meter, LCD display, DN15/20/25