Infrarot Vorauszahlung Kaltwasserzähler

SFK01 infrared Prepayment water meter (cold water) adopts ultra low power technology which solves the problem of high power consumption of infrared unit. The module integrated data sample and process with display, valve control and IR communication. It allows prepayment through infrared communication channel. It is a production designed for modern management of community water using. Main functions and features l Prepaid of water free and close valve while remaining balance is zero l High accuracy in measuring, both accuracy in measuring forward flow and reverse flow l Sending and receiving data through IR channel l No exposure unit , better protection water meter l Can long time work in severe condition l Solved the problem of waterproof, damp proof, and anti-attack l Advanced digital anti-interface circuit, reliable embedded software designing l Ultra low power, battery life 5 years l One IR remote controller every meter l Indication of magnetic attack and low voltage Main parameters: l Accuracy class :class B l Battery life : 5 years l Operation voltage :3v-3.7V l Data keep:10years without power supply l Static power consumption:15Ua l Connection: Dn 115,DN 20,Dn25 l Standard:CJ/T133-2001 l Max tolerance error:±5%(min flow rate line flow rate ) ±2%(line flow rate max flow rate ) l Ambient temperature:0.5-+40(cold water meter) 0.5-+95(heat water meter) l Relative humidity:≤93%