HQ40d 双通道数字化多参数测试仪
The HQ40d Dual-Input Digital Multi-Parameter Meter offers true Plug and Play operation with IntelliCAL™ pH, conductivity, and LDO® dissolved oxygen probes. Plug in any two IntelliCAL probes and get simultaneous measurement, simultaneous readout! "Smart" meters store probe serial numbers, calibration history, user ID, time, date and location of readings.

HQ40d可以同时显示两个参数。用户可以在同一个样品中测量不同的参数，也可以同时测量两个样品。探头即插即用。带有USB接口，通过USB适配器，可以传输数据到闪盘、电脑和打印机。标配：户外组件、4节5号电池、带变压器的电源线、CD光盘、USB适配器、操作手册和快速启动卡。HQ40d 650

技术规格一览：

同时测量两个水质参数；

语言显示： 英、法、德、意等文字；
pH 探头显示： pH, mV, 温度
电导探头显示： selected parameter (conductivity, resistivity, TDS), temperature correction, temperature
溶氧探头显示： dissolved oxygen (mg/L, % saturation), pressure, temperature
数据储存：500 results — GLP/ISO compliant reading data stored with calibration details. Calibration details and check standard readings documented as events in log. Operates in "press to read" mode, continuous read mode, and interval measurement mode. Store data internally and/or download via USB connection to PC or flash stick.
Temperature Correction/Compensation: off/automatic/manual
显示锁定功能: Freezes results display, including time and temperature, when stability criteria are met.
自动PH缓冲液识别：Automatic pH Buffer Recognition: Choose from 3 sets: Color-coded: 4, 7, and 10 pH; IUPAC: 1.679, 4.005, 7.000, 10.012; DIN: 1.09, 4.65, 9.23
防护等级： Meter Casing: 1 meter submersion for 30 minutes (IP67)