产品介绍测量项目

pH

ORP

电导率(电阻率、浓度)

溶解氧

使用领域

上水道

食品工业

养殖/水族馆

产品特点

·采用新型数字探头

可自动识别探头信息

2ch型，可自由组合连接到每个ch的探头

· pH探头、ORP探头只能更换电极部分。

降低环境负荷和运营成本

·纤巧的设计，易于握持

·具有背光功能

·防水结构(IP67：1m、可浸泡30分钟)

·具有数据存储功能(1500个数据)

·标配USB(支持PC连接)

也可以使用USB电源(可选)

·支持连接外部打印机检测项目pH

ORP电导率电阻率

盐度

TDS(总溶解固体)

光学式溶解氧

技术参数Measurement methodpHGlass electrode methodORPPlatinum electrode methodConductivityAC 2-Electrode MethodDOOpticalTemperatureThermistor resistorDisplay unitCustom LCD with backlightMeasurement Item/RangepHpH0.000～pH14.000mV(ORP)-2000～2000mVConductivity0.1mS/m～10S/mResistivity0.1 Ω•m to 10kΩ•m (converted from Conductivity)Salinity (NaCl, PSSs: Practical Salinity)TDS (total dissolved solid)Conversion from ConductivityDO/Saturation0.00～20.00mg/L or 0.0 to 200.0%Temperature0.0～100.0℃ When using DO probes: 0.0 to 50.0℃Display RangepHpH-2.000～pH16.000mV(ORP)-2200～2200mVConductivity (manual/automatic range switching)0.000～2.000mS/m (0.00～20.00μS/cm)0.00～20.00mS/m (0.0～200.0μS/cm)0.0～200.0mS/m (0.000～2.000mS/cm)0.000～2.000S/m (0.00～20.00mS/cm)0.00～20.00S/m (0.0～200.0mS/cm)Switchable between SI unit (S/m) and old unit (S/cm)Resistivity (manual/automatic range switching)0.005～2.000 Ω･m (0.5～200.0Ω･cm)0.00～20.00 Ω･m (0.000～2.000kΩ･cm)0.0～200.0 Ω･m (0.00～20.00kΩ･cm)0.000～2.000 kΩ･m (0.0～200.0kΩ･cm)0.00～20.00 kΩ･m (0.000～2.000MΩ･cm)0.0～200.0 kΩ･m (0.00～20.00MΩ･cm)0.000～2.000 MΩ･m (0.0～200.0MΩ･cm)Switchable between SI unit (Ω•m) and old unit (Ω•cm)Salinity0.00～4.04%(NaCl) 0.00～42.40psu(PSS)TDS (total dissolved solid) (manual/automatic range switching)0～99.99/ 999.9 mg/L0～9.999/ 99.99/ 999.9 g/LDO/Saturation0.00～22.00mg/L or 0.0 to 220.0%Temperature-5.0～110.0℃ When using DO probes:-5.0 to 55.0℃Repeatability (instrument body)pH±0.006pHmV(ORP)±2mVConductivity/Resistivity Salinity/TDS (total dissolved solid)±0.5% FSDO/SaturationWhen combined with 8 mg/L±0.1mg/L or 100%±1%* MM4-DDOTemperatureWithin ±0.2℃pH Temperature Compensation RangeATC (Automatic Temperature Compensation): 0 to 100.0℃MTC (manual Temperature Compensation): 0 to 100.0℃Conductivity Temperature Compensation scopeATC (Automatic Temperature Compensation): 0 to 100.0℃MTC (manual Temperature Compensation): 0 to 100.0℃OFF (no Temperature Compensation)Conductivity Standard Temperature SettingFixed at 25℃Conductivity Temperature Coefficient (Linear)0～10.00%/℃DO Temperature Compensation rangeATC (Automatic Temperature Compensation): 0 to 50.0℃pH calibrationJIS pH standard solution, US standard solution up to 5-point calibration or custom-made standard solution up to 2-point calibrationTemperature CalibrationOne-point calibrationPerformance Guaranteed Temperature, Humidity0 to 45℃ 20 to 90% (non-condensing)* 0 to 40℃ when the optional External Printer is usedWaterproof structureIP67(1m, immersion allowed for 30 minutes)* Disabled when probes are not connectedData MemoryMM-42DP: each ch 1500 data (measurement times, measurement values, Temperature)(When Data Memory is operated, the measured data of ch1 and ch2 are memorized simultaneously.) MM-41DP: 1500 data (measured time, measured value, Temperature)Calibration History Creation FunctionMain unit side: Last 1 timeProbe side: pH is 10 batches including the newest, and DO is 8 batches including the newest.Interval Measurement function ※1Setting interval: 1 second to 99 minutes 59 seconds or 5 minutes to 99 hours 59 minutes can be arbitrarily set.Print FunctionCan be connected to optional External Printer EPS-P30 (Plain Paper Print)Auto Hold FunctionStable judgment value: FixedAuto Power OffOFF/10 min./30 min./60 min./180 min./360 min./720 min. settableUSB (peripheral, Micro)1 port standerd equipment (isolated)Analog output (insulate)※2pHpH0～14 → 500～1900mVmV(ORP)-2000～2000mV → 200～2200mVConductivity/ResistivityEach range 0～FS(2000 digit)→ 200～2200 mVSalinity (NaCl equivalent)0.00～4.00% → 200～2200mVSalinity (PSS-78 equivalent)0.00～40.00psu → 200～2200mVTDSEach range 0～FS(9999 digit)→ 200～2200 mVDO0.00～20.00mg/L → 200～2200mVSaturation0～200% → 200～2200mVTemperature0～100℃ → 200～2200mVPower supplyAA batteries/rechargeable nickel-metal hydride batteries 2 pcs or USB-powered (no recharging function) ※2Battery life (estimate)When a pH or ORP probe is connected: Approx.800 hours When a Conductivity probe is connected: Approx. 500 hours When an optical DO probe is connected: Approx. 60 hours ※2＊Backlight turns off, option not connectedPower consumption0.2VA (with battery 3V), 0.9VA (with USB-powered)Dimensions (projections not included)Approx. 70 (W) × 35 (H) × 185 (D) mmMain Unit Weight (including batteries)MM-42DP: Approx. 300g MM-41DP: Approx. 290g※1 It is effective for simplified monitoring in a short time (about half a day), etc.

※2 The use of AC-USB adapter ASSY is recommended for optional analogue-output connections and for continuous-measurement with DOprobes because battery life is shortened (USB-powered).