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Sartorius™ Series 200 Benchtop Research-Grade Multiparameter Meters

Research-grade meters for multiparameter measurements

Includes: Meter Only option includes power supply, electrode support arm and operating manual. Meter Kit option consists of the meter, power supply, electrode support arm, operating manual, and a high-performance glass-body pH/ATC electrode.

Products 1
Catalog Number Mfr. No. Description Price Qty Availability  
Catalog Number Mfr. No. Description Price Qty Availability  
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N/A Model 225 Meter Only, 115V This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
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Easy-to-operate models for multiple measurements
Model 220 displays both pH and conductivity measurements at one time
Model 225 is ideal for ion-selective analyses, pH and mV measurements
Model 250 is the multimeter for electrochemical analyses of concentration, conductivity, TDS, salinity, pH and mV
(For the most accurate pH measurement (±0.002), choose Model 215, described under Electrochemistry/pH Meters. )
Single-button, menu-driven operation

  • MODE selects pH, mV, ion, or conductivity; press STANDARDIZE to standardize your measurements
  • CAL DATA displays complete calibration data, including buffers/standards, time/date, slope, cell constant, and calibration line graphs
  • CHANNEL allows you to see one to three parameters at one time
  • Use SETUP to control meter operations
  • DATALOG sets up datalogging and viewing of stored measurements
  • CLEAR cancels an input or returns to previous screen
  • ENTER/PRINT enters selections or prints current results. “Soft keys” provide quick access to the most frequently used features, including context-sensitive help
  • Enter standards and parameters with the numeric keypad
All models have RS-232-C bidirectional input/output
  • Output results with sample alphanumeric description or ID number, result, units, time, date, temperature, channel and stability indication
  • Print at programmed time intervals or by serial port command.
  • Calibration points are time- and date-stamped, and electrode/cell calibration information can be recalled and printed for GLP documentation
  • Meters automatically prompt when recalibration is needed.
  • Internal datalog stores up to 620 results for viewing or downloading
  • Multiline 53/4 in. backlit display shows time, date, current buffers, temperature, electrode slope, and current value; prompts for input data

Model Selection
Model 220

  • For simultaneous pH and conductivity measurements, even with electrodes in the same solution
  • Switches from conductivity to NaCl salinity, practical salinity, resistivity, or Total Dissolved Solids
  • Automatically selects the correct range for each sample from five subranges or autorange units, or uses fixed units in µS/cm or kilohm·cm
  • Features automatic conductivity calibration, allows up to five points for calibration, and uses advanced four-band cell conductivity circuitry for the most accurate conductivity measurements available\
  • Temperature correction can be programmed either off or on, with coefficients from 0 to 4.0% per °C
Model 225
  • Displays direct ISE readouts in ppt, ppm, ppb, %, mg/mL, µg/L, moles/L, and generic ion units
  • Select one of 14 preprogrammed ions and enter up to seven standards, using fixed- or floating-point notation
  • Meter guides you through eight different known-addition or subtraction methods for indirect ion measurement
  • Dual channels provide research-grade pH and mV measurements simultaneously
  • Built-in buffer and temperature tables provide automatic compensation with the ATC probe (included in the glass-body pH/ATC probe)
Model 250
  • Measures pH, mV, temperature, conductivity, salinity, resistivity, total dissolved solids and ion concentration
  • Automatically selects the correct range for the sample and calibrates cell constant
  • Uses up to five standards
  • Exceeds USP 23 conductivity protocol requirements
  • Displays direct ion readout in ppm, ppb, %, mg/L, µg/L, mole/L and generic ion units, with units in use displayed
  • Choose from 14 different ions with units and get eight incremental modes for indirect concentration measurements

Order Info

Meter dimensions: 8L x 12 1/4W x 4 in.H (20 x 31 x 10cm). Weight: 3 1/4 lb. (2.1kg). For 115V 50/60Hz.

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