Prepaid Contactless IC Card Gas Flow Meter is suitable for measuring the flow of natural gas, coal gas and liquid gas. One household fixed one meter and consumer uses gas by IC card. No need of house call fee-charge and avoid owing.
1. Prepaid, contactless IC card patent technique, water proof and anti-attack. Its inside circuit is sealed with high performance sealant, so it can work normally even under humid environment.
2. Micropower energy consumption technique ensures two years service life of inside batteries.
3. Power by 3 pieces of AAA alkaline batteries and automatically close valve when change batteries.
4. Compact size, light weight, high sensitivity and accuracy.
5. High metrological performance, low pressure loss and steady operation.
6. Moving parts are self-lubricating materials with lower friction, which can prolong the service life of meter.
7. Inside simple absolute structure is suitable for different kinds of gas, can filter and precipitate the impurity or dust.
8. Whole meter design against illegal access.
9. High quality internal plastic and stainless metal components, internal and external protection with powder painting guarantees a long service life.
|Meter Level||Class B|
|Airproof||No leaking for 3 minutes under 1.5 times max working pressure|
|Nominal Flow Rate||1.6m³/h||2.5m³/h||4.0m³/h|
|Max Flow Rate||2.5m³/h||4m³/h||6m³/h|
|Min Flow Rate||0.016m³/h||0.025m³/h||0.04m³/h|
|Basic Inaccuracy||Qmax≥Q≥0.1Qmax ≤±1.5%|
|IC Card Service Life||≥100,000 Times|
|Alarm Way||Close Valve|
|Alarm Volume||50m³/2 m³|
|Static Working Current||≤20μA|
|Working Temperature||-10--50 Celsius|
|Total Pressure Loss||≤200Pa (Under Qmax)|
|Service Life||≥10 Years|
1. Prepaid function
The products adopt prepaid gas measure form. The users can only use the gas after paying for it. When the user's card is inserted in the table with a gas, the gas meter shows the purchasing volume and open valve words. When electric control valve to open, the gas meter begins to supply gas, as well as displaying the available room.
2. Alarming function
When users open an account, the alarm volume can be preset (0-90 m3). When the gas supplying, the Countdown intelligent module. The buzzer rings once when the residual volume equals to the alarming volume. Then it can remind the users. At the same time, the characters displays on the screen to show the absence and alarm once after each reduced by 1 cubic meters.
3. Gas cutting down function when the gas volume is zero.
4. Security feature: It is only available for the single user with the card.
5. Anti Interference Function
6. Intuitive reading of the data.
7. With pulse output interface realizing the centralized meter reading