4520型是一种完全符合技术条件的实验室导电率/电阻率/TDS/盐度/温度测量仪，提供0-19.99S宽测量范围内的1,2或3点导电率校验的附加精度。由于综合的GLP热运动，保持了结果的完整性和可追踪性。特别的 纯水 模式保证这一提取过程达到最佳精度。强大的巡回检测数据记录能力可以存储高达500个有关手动，时控间隔或报警事件的读数，也可以进行电缆或IrDA到备选打印机的通信。规格 导电率范围0to19.99 S,0to199.9 S,0to1999 S,0to19.99mS,0to199.9mS,0to1999mS,0to19.99S*分辨率0.01 S,0.1 S,1 S,0.01mS,0.1mS,1mS,0.01S*精度 0.5% 2digitsTDS范围0to19.99mg/l,0to199.9mg/l,0to1999mg/l,0to19.99g/l,0to199.9g/l,0to1999g/l分辨率0.01mg/l,0.1mg/l,1mg/l,0.01g/l,0.1g/l,1g/l**onlywithcellconstant 5精度 0.5% 2digits电阻系数0to20Mohms分辨率0.1Mohms温度范围-10to+105 C/14to221 F分辨率0.1 C/1 F精度 0.5 C/ 1 FATC范围0to100 C/32to212 FMTC0to100 C/32to212 F池常数0.010to19.999,default1.000温度系数0.00%to4.00%,default1.91%参考温度18,2025 C,default25 CEC比率0.50to0.80,default0.6自动校准识别10 S,84 S,1413 S,12.88mS输出Analogue1mVperdigit/RS232serialandIrDAprinterinterface/Alarm时钟24hours,hrs/min/secordayofmonth/month/year,leapyearcorrected(EuropeanandAmericanformats)GLPCalibrationreminderinterval(1to999hours)Alarmoutputs(opencollectorandaudible)Securitycodeprotecteduserdata显示Backlit1/8VGAmonochromeLCD语言English,French,German,Italian,PortugueseandSpanish电源PowerSupply9vAC尺寸250(l)x210(w)x55(d)mm重量850g