▊ 功能及特點
■ 水表模塊采用全密安裝設(shè)計,安全可靠
■ 預(yù)付費功能,先付費,后使用
■ 階梯水價,一卡多表
■ 機械讀數(shù)與電子讀數(shù)的雙重顯示功能
■ 數(shù)據(jù)自行記憶,保持時間≥10年,IC卡卡片使用壽命>10萬次
■ 靜電放電抗干擾能力:符合GB/T17626.2標(biāo)準(zhǔn)
■ 射頻電磁場輻射抗擾能力:符合GB/T17626.3標(biāo)準(zhǔn)
■ 非接觸式取樣,控制器準(zhǔn)確度>0.1%
■ 液晶顯示6位數(shù)字,14種狀態(tài)標(biāo)識符號
■ 工作電壓3.6V,近似零的靜態(tài)電流微功耗
■ 獨特的電池保護功能,使用長壽命高能量型電池,微功耗,電池壽命≥6年。
▊ IC卡水表工作原理
IC卡水表以接觸式IC卡為載體,用于計量管道中的水流量,同時具有自動收費功能。用戶將水費交給管理部門,管理部門將購水量寫入IC卡中,用戶將IC卡中信息輸入水表后, 水表將自動開閥供水,在用戶用水過程中,水表中的MCU自動核減剩余量,所購水量用盡后,水表將自動關(guān)閥斷水,用戶需重新購水后才能再次開閥供水。
▊ 技術(shù)參數(shù)
參數(shù)/型號 | 15E | 20E | 25E |
閥門耐用性 | 閥門開關(guān)次數(shù)≥5000次 | 閥門開關(guān)次數(shù)≥5000次 | 閥門開關(guān)次數(shù)≥5000次 |
過載流量(m³/h) | 3.125 | 5.000 | 7.875 |
常用流量 (m³/h) | 2.500 | 4.000 | 6.300 |
分界流量 (m³/h) | 0.050 | 0.080 | 0.126 |
最小流量 (m³/h) | 0.031 | 0.050 | 0.079 |
最小讀數(shù)(m³) | 0.0001 | 0.0001 | 0.0001 |
最大讀數(shù)(m³) | 99999 | 99999 | 99999 |
電源及使用壽命 | 3.6V鋰電池1節(jié),壽命≥6年 | 3.6V鋰電池1節(jié),壽命≥6年 | 3.6V鋰電池1節(jié),壽命≥6年 |
保密安全性 | 一表一卡 | 一表一卡 | 一表一卡 |
IC卡使用壽命 | ≥10萬次 | ≥10萬次 | ≥10萬次 |
最大誤差極限 | ≤±5% | ≤±5% | ≤±5% |
最小誤差極限 | ≤±2% | ≤±2% | ≤±2% |
使用條件 | 水溫≤40℃(熱水表≤90℃) 水壓≤1MPa | 水溫≤40℃(熱水表≤90℃) 水壓≤1MPa | 水溫≤40℃(熱水表≤90℃) 水壓≤1MPa |
最大工作壓力 | ≤1.0MPa | ≤1.0MPa | ≤1.0MPa |
壓力損失 | ≤0.1MPa | ≤0.1MPa | ≤0.1MPa |
▊ 外形及尺寸
口徑(mm) | 連線螺紋 | 長度(mm) | 寬度(mm) | 高度(mm) | ||
15 | G3/4B | 165 | 105 | 115 | ||
20 | G1B | 195 | 105 | 115 |
產(chǎn)品來源:www.bjhuaan.com
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