Product Overview YJLX type IC card cold water meter is the use of modern microelectronic technology, modern sensor technology, intelligent IC card technology for water metering and water meter data transfer and new settlement transactions. The product has advanced technology, superior performance, reasonable structure, accurate, reliable and a series of advantages, mainly suitable for urban water sector, residential property, industrial and mining enterprises and residential quarters of the water metering and charging management. The product complies with GB / T778-2007 and CJ / T133-2012 standard all the technical requirements. Functions and features 1, the pre-paid functions: the two-way transfer of water through the IC card, after the first purchase of water with water, dried automatically close the valve without water. 2, the status display function: users can directly view the meter information, such as this purchase of water, the remaining water, the cumulative amount of water, the switch valve condition, electricity reminders, clear display and intuitive. 3, water alarm function: When the remaining water reaches the set alarm value, the meter automatically off valve, in order to remind users to purchase water, users can continue to use the card until after the remaining water zero off valve. 4, low voltage protection function: When the built-in battery voltage falls below the threshold voltage, the meter will alarm and automatically close the valve, water meter information is automatically saved, prevent theft of water, after replacing the battery, card automatically open the valve. 5, the accumulation limit function: When the recharge amount exceeds the limit value, the meter will not read card purchase of water until the water remaining in the water only when reading The purchase of water is less than the sum of the fixed limit. 6, water departments using physical seal design, does not use any chemical latex, excellent sealing effect, moisture-proof waterproof, dustproof performance strong, stable and reliable. 7, the unique design of the battery compartment at the top of the meter housing, management can be very easy to replace the battery. 8, that is changing namely function: the use of national standards designed to connect with ordinary water the same size, without changing the pipe can be replaced. 9, the valve self-cleaning function: automatic switching valve in the secondary meter per month, to achieve automatic discharge valve, the valve to avoid rust, scaling and so on. 10, micro-power design, quiescent current is less than 4uA, battery life of more than six years. 11, the card features: The meter supports a card table, enabling water, electricity, heat, gas card. The main technical parameters nominal diameter (DN15) 15mm (DN20) 20mm (DN25) 25mm measurement level 2 2 2 Unit 0.1m3 0.1m3 0.1m3 turndown ratio (Q3 / Q1) 80 80 80 maximum flow rate (Q4) 3 m3 / h 5 m3 / h 7m3 / h common flow (Q3) 2.5m3 / h 4m3 / h 6.3m3 / h minimum flow (Q1) 0.03 m3 / h 0.05 m3 / h 0.07m3 / h Dimensions 165 × 85 × 120 195 × 85 × 120 225 × 85 × 120 connecting thread D: R1 / 2B D: G3 / 4B D: R3 / 4B D: G1B D: R1B D: G5 / 4B minimum reading maximum reading of 99999 m3 0.0001 m3 Alarm off valve without water Alarm temperature 0.1 ℃ ~ 30 ℃ Working pressure 0.03MPa ~ 1.0 MPa battery life ≥ 6 Grade E1 Electromagnetic Compatibility maximum permissible error from minimum flow to excluding transitional flow in the lower zone of the maximum permissible error ± 5%. Including the transitional flow from the upper zone of the maximum flow of the maximum permissible error of ± 3%