Lichen Scientific Group

Benchtop pH Meter

PH50 Series

PH50
Benchtop pH Meter PH50

Product Overview

The PH50 Series Benchtop pH Meters are advanced analytical instruments designed for high-precision pH measurement in laboratories and industrial settings. Equipped with digital electrode technology and an intelligent calibration system, they deliver rapid, stable, and reliable results across diverse fields.
Features
  • Displays calibration, measurement, and data stabilization indicators, along with temperature values and electrode slope parameters.
  • Supports backlight function, factory reset, manual temperature compensation, and continuous measurement mode.
  • Enables automatic recognition of NIST, USA, and EURO calibration standards with up to 5-point calibration capability.
  • Provides stable measurement mode and data lock functionality.(PH50-3/4/5)
  • Incorporates auto-shutdown and automatic temperature compensation features. (PH50-3/4/5)
  • Facilitates data storage, deletion, review, printing, and transmission. Supports mV resolution switching (PH50-3/4/5).
    •

    Model PH50-1 PH50-2 PH50-3 PH50-4 PH50-5
    Voltage AC 100~240V  DC 9V
    Display 4 inches LCD 6 inches LCD
    Protection Rating IP54
    pH Range 0.00~14.00 0.00~14.00 -2.00~18.00 -2.00~18.00 -2.00～20.000
    pH Repeatability 0.05 0.01 0.01 0.01 0.005

    pH Error of Indication

    (Electronics units)

    		 ±0.05pH ±0.01pH ±0.01pH ±0.01pH ±0.002pH

    pH Error of Indication

    (Instrument)

    		 ±0.1pH±0.02pH ±0.02pH ±0.02pH ±0.01pH
    mV Range

    -1599mV～

    1599mV

    -1800mV～

    1800mV

    -1999mV～

    1999mV

    -1999mV～

    1999mV

    -2000mV～

    2000mV
    mV Resolution 1 1 1 1 0.01

    mV Error of Indication

    (Electronics units)

    		 ±1%FS±0.1%FS ±0.1%FS ±0.1%FS ±0.03%FS
    Temperature Compensation Manual Manual Manual Automatic/Manual

    Temperature Compensation

    Range

    		 0.00～60.0℃

    0.00～60.0℃/

    -5.0～110.0℃

    0.00～60.0℃/

    -5.0～110.0℃
    Auto-Shut Off Function //Y YY
    Calibration Points 1-2 1-2 1-3 1-3 1-5
    Auto-Buffer Recognition

     

    NIST: 4.00pH, 6.86pH, 9.18pH
    USA: 4.01pH, 7.00pH, 10.01pH
    EURO: 4.01pH, 7.01pH, 9.21pH

     

    NIST: 1.68, 4.00, 6.86, 9.18, 12.46

    USA: 1.68, 4.01, 7.00, 10.01, 12.46 
    EURO: 1.68, 4.01, 7.01, 9.21, 12.46
    Data Storage Function / /

    50 sets of data storage,

    review, and deletion

    500 sets of data storage,

    review, and deletion
    Standard Electrode E-201-C E-201-C E-201-C E-301-C E-301-C
    Net Weight (kg) ~1 ~1 ~1 ~1 ~1

    Dimensions

    (L×W×H)(mm)

    		 193.6×189.2×74.8

    pH Electrode Combination pH Electrode Glass ORP Electrode Conductivity Electrode Temperature Electrode
    pH Electrode Combination pH Electrode Glass ORP Electrode Conductivity Electrode Temperature Electrode

    pH Electrode Combination E-201-C E-301-C
    pH Measurement range 0~14ph 0~14ph
    Junction Type Single Salt Bridge Single Salt Bridge
    Reference System Ag/AgCl Ag/AgCl
    Reference Junction Type Non-refillable Non-refillable
    Connector Type BNC (Q9) BNC (Q9)
    Cable Length 1 meter 1 meter
    Operating Temperature 5~60℃ 5~60℃
    Electrode Storage Solution 3 mol/L KCl 3 mol/L KCl
    Sensing Membrane Spherical glass bulb Spherical glass bulb
    Combination Reference + sensing Reference + sensing + temperature probe
    Temperature Electrode / 2.5mm audio jack connector
    Dimensions 12mm*160mm 12mm*160mm
    Weight 0.060kg 0.078kg

    pH Electrode Glass 6502 6503
    pH Measurement Range 2–12 0–14
    Junction Type Ceramic Ceramic
    Electrode Body Material Glass Glass
    Reference System Ag/AgCl Ag/AgCl
    Reference Junction Type Double junction, Refillable Double junction, Refillable
    Connector Type Q9 Q9
    Cable Length 1 meter 1 meter
    Operating Temperature 5–90°C 5–90°C
    Electrode Storage Solution 3 mol/L KCl 3 mol/L KCl
    Sensing Membrane Spherical glass bulb Spherical glass bulb
    Combination Reference + sensing Reference + sensing
    Dimensions φ12 × 165 mm φ12 × 165 mm
    Weight 0.1 kg 0.1 kg

    Electrode Selection Guide

    pH Electrode Glass 6502 6503
    General Laboratory Use Y Y
    Strong Acids/Bases or High-Corrosion Environments X Y
    Low-Conductivity Solutions Y X
    Pure Water Y X
    Biochemical samples X X
    Tris-containing solutions X X
    Soil Water, Wastewater X Y
    Viscous, Emulsion, or Oily Substances (emulsions, food products, cosmetics, pigments, paints) X Y

    (Note: Y = Suitable, X = Unsuitable)


    ORP Electrode 5001
    Body Material Plastic
    Sensor Design Needle-Type PlatinumTip
    Reference System Plastic Fiber, Single Junction, Non-Refillable
    Connector Type Q9
    Cable Length 1 Meter
    Operating Temperature 5–60°C
    Electrode Storage Solution 3mol/L KCl Solution
    Electrode Features General-Purpose
    Dimensions Φ12×160mm
    Weight 0.1kg

    Conductivity Electrode DJS-0.1 DJS-1 (Platinum Black) DJS-10 (Platinum Black)
    Application Ultra-pure water, pure water Environmental water, routine water High-electrolyte solutions
    Housing Material Glass Glass Glass
    Cell Constant (K) 0.1±0.02 1±0.2 10±2
    Measurement Range 0.055～300µS/cm 50～2000µS/cm 2～100mS/cm
    Dimensions (mm) φ12×155 φ12×155 φ12×155
    Weight (kg) 0.1 0.1 0.1

    Temperature Electrode T-10K
    Material Stainless steel
    Temperature Coefficient 10K
    Measurement Range 0-100℃
    Dimensions φ12×155 mm
    Weight (kg) 0.1kg