Fisher Scientific™ accumet™ AB250 pH/ISE Benchtop Meters Available on GSA/VA Contract for Federal Government customers only.

Provides intuitive, simple operation and high accuracy measurements in a compact, affordable meter. Fisher Scientific accumet AB250 pH/ISE meter provides flexible measurements of pH or ion concentration using an ion selective electrode (ISE) in one easy to use, reliable measurement system.

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Catalog No. 13-636-AB250A

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Includes: accumet AB250 pH/ISE benchtop meter, electrode stand, RS232 and USB cables, 100/240V universal power supply


    Hertz 50/60Hz
    Accuracy (ISE) 0.5 % full scale (monovalent ion), 1 % full scale (divalent ion)
    Certifications/Compliance Without NIST-traceable pH Certificate
    Warranty 3 Years
    Model AB250 pH/ISE Meter Only
    Range (ISE) 0.001 to 19999 (±2000)
    Voltage 100/240V
    Includes Meter, Electrode Arm, RS-232 and USB Cables, 100/240V Power Supply
    Range (pH) -2 to 20
    Resolution (pH) 0.1/0.01/0.001
    Calibration Points (pH) Up to 6 pre-set or 5 custom
    Resolution (Temperature) 0.1°C
    Display Type LCD
    Range (mV) ±2000mV
    Data Management Details Manual, timed (selectable every 3 to 3600 sec.), printer or CSV format
    Data Points 500
    Inputs BNC, ATC
    Outputs RS232 (phono plug), mini-B USB, stirrer
    Resolution (mV) 0.1mV
    Accuracy (pH) ±0.002
    Accuracy (mV) ±0.2mV
    Resolution (ISE) 0.001/0.01/0.1/1 (automatic)
    Calibration Points (ISE) 2 to 6 points from one of following group, 0.001, 0.01, 0.1, 1, 10, 100, 0.01, 0.1, 1, 10, 100, 1000, 0.02, 0.2, 2, 20, 200, 2000, 0.1, 1, 10, 100, 1000, 10000, 0.05, 0.5, 5, 50, 500, 5000
    Accuracy (Temperature) ±0.3°C

    • Graphic backlit display with date and time, stability indicator and alarms
    • One to six point pH calibration with 0.001 pH resolution
    • Automatic buffer recognition with four pH buffer sets or custom buffer option
    • pH slope and offset display
    • Two to six point ISE calibration with 0.001 ppm, mg/L or molar resolution
    • Automatic or manual temperature compensation, displayed in °C or °F
    • Password protection of calibration and setup modes
    • 500 data set storage
    • RS232 and USB interfaces
    • Multilanguage interface with English, German, Chinese, French, Italian and Spanish
    • Optional stirring probe (Cat. No. 13-620-BSP) with five speed settings
    NIST-Traceable Calibration Model (-CERT)
    • Help meet ISO, FDA, USDA and EPA quality assurance guidelines
    • Includes meter accuracy at five test points across pH range
    • Includes meter accuracy at five test points across corresponding mV range
    • Testing performed by accredited laboratory, includes NIST-Traceable certificate
    • pH Range: -2.000 to 20.000 pH
    • pH Resolution: 0.1, 0.01, 0.001 pH
    • pH Accuracy: ±0.002 pH
    • ISE Range: 0.001 to 19999 ppm, mg/L or molar
    • ISE Resolution: 0.001, 0.01, 0.1, 1 (automatic)
    • ISE Accuracy: 0.5 % full scale (monovalent ion), 1 % full scale (divalent ion)
    • mV Range: ±2000.0mV
    • mV Resolution: 0.1mV
    • mV Accuracy: ±0.2mV or ±0.05 %, whichever is greater
    • mV Offset Adjustment: Up to ±150mV
    • Temperature Range: 0° to 100°C (32° to 212.0°F)
    • Temperature Resolution: 0.1°C (0.1°F)
    • Temperature Accuracy: ±0.3°C (±0.5°F)
    • Calibration Points: 1 to 6 points with automatic buffer recognition (ABR)
    • ATC Temperature Calibration: Offset in 0.1°C increments; Offset range: ±5°C (±9°F)
    • Self-Test: Yes
    • Inputs: BNC, mini-phone ATC, ground
    • Power Requirements: 100 to 240VAC, 50/60Hz
    Academic, research, QA/QC, drinking water, wastewater, food, beverage, industrial


    3 years on meter

  • Description & Specifications

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