导言
General Features

LCD display screen, 3.5 inches
Multi-reading feature allows auto-read, timed-read and continuous-read
Automatic/Manual temperature compensation ensures accurate results
Auto-hold feature senses and locks the measurement endpoint
Data capacity of up to 500 sets for each parameter (GLP-compliant)
Support for USB communication
Auto-power off feature effectively extends the battery service life
Reset feature automatically resumes all settings back to factory default options
IP65 waterproof. The portable meter is suitable for fields measurements and out door measurements

Ion

1-5 points calibration
Selectable measurement unit, including µg/L, mg/L, g/L, mmol/L, pX, ppm, ppb, etc
Measurement modes are supported, including Direct Reading mode, Standard
Addition mode, Sample Addition mode and GRAN mode
Over 10 methods are built-in, including F- , Cl- , Br- , I- , NO3 -, BF4 -, NH4 +, K+ , Na+ , Ca2+, Cu2+, Pb2+, Ag+ and etc., user-defined method is supported

pH

1-5 points calibration with Standard Recognition
Selectable pH buffer groups, including NIST, DIN, GB, USA
Automatic electrode diagnosis with pH slope and offset display

Conductivity

1-3 points calibration with Standard Recognition
Temperature compensation type (none, linear, pure water)
Settable parameters, including cell constant, temperature compensation coefficient and TDS factor

DO

Support for air-saturated water or zero oxygen calibration
Auto barometric pressure compensation
Selectable pressure unit, including kPa, mbar, Torr, Atm
Manual Salinity Factor Correction

Technical Parameters

模型M310F
ParameterspH/EC/ISE/DO/Temp. (mV/pX/Resistivity/TDS/Sal./DO Saturation)
pHRange-2.00 to 20.00 pH
Resolution0.1, 0.01 pH
Accuracy± 0.01 pH
Calibration PointsUp to 5
Standard CustomizationYes
Standard RecognitionNIST, GB, USA and DIN buffers
Slope LimitYes
mVRange-2000.0 to 2000.0 mV
Resolution0.1 
Accuracy± 0.3 mV or ± 0.1%
pXRange-2.00 to 20.00 pX
Resolution0.1, 0.01 pX
Accuracy± 0.01 pX
Calibration PointsUp to 5
ISERange1.000e-9 to 9.999e+9
Unitsmol/L, mmol/L, g/L, mg/L, µ g/L, ppm, ppb
ResolutionUp to 4 significant digits
Accuracy± 0.5%
Calibration PointsUp to 5
ConductivityRange0.000 µ S/cm to 500 mS/cm
Resolution0.001 µ S/cm minimum, various with range selection
Accuracy± 1.0% FS
Reference Temperature20, 25 ºC
Calibration PointsUp to 3
Standard Recognition84 µ S/cm, 1413 µ S/cm, 12.88mS/cm
         ResistivityRange5.00 Ω ·cm~20.00 M Ω ·cm
Resolution0.01 Ω ·cm minimum
Accuracy± 1.0% FS
TDSRange0.00 ppm~300 ppt
Resolution0.01 ppm minimum, various with range selection
Accuracy± 1.0%FS
SalinityRange0.0~80.0 ppt
Resolution0.1ppt
Accuracy± 2ppt
Dissolved
Oxygen Concentration
Range0.00 to 50.00 ppm
Resolution0.01ppm
Accuracy± 0.10ppm
Calibration PointsAir-saturated water or zero point
Barometric CompensationYes
Manual Salinity Factor CorrectionYes
SaturationRange(0.0 to 300.0)%
Resolution0.1%
Accuracy± 2.0%
TemperatureRange-5 to 110 ºC, 23 to 230 ºF
UnitºC, ºF
Resolution0.1 
Relative Accuracy± 0.2
MeasurementReading ModeAuto Read (Fast, Medium, Slow), Timed, Continuous
Reading PromptsReading, Stable, Locked
Temp. CompensationATC, MTC
Data managementData Storage500 results each
GLP FeaturesYes
InputspH ElectrodeBNC(Q9)
DO with Temp. Probe4-pin aviation connector
Conductivity with Temp. Probe5-pin aviation connector
OutputsUSBPC, printer
Display optionsBacklightYes
Auto Shutdown300, 600, 1200, 1800, 3600 sec. , off
IP RatingIP65
Date and TimeYes
GeneralPower“Rechargeable Lithium battery, AC Adapter, 100-240VAC input, DC5V output”
Dimensions80 × 225 × 35 mm
Weight400g (0.88 lb)
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