C34xx Series High Resolution / Temperature
 / pH / mV /  Conductivity / Salinity/ TDS / Resistivity Meter /ions
Two independent channels for all measurements, works with 4 pole conductivity probes
pH -2 +16 pH
mV +/- 2000 mV
Ion 0.01 ng/l...100 ng/l
Conductivity 0-2000 mS/cm
Resistivity 0-200 MOhm.cm
TDS 0-100 g/l
Dissolved Oxygen 0-60 mg/l, 0-600%
Air Pressure 600 - 1300 hPa
Temperature =5 - +105°C


Features of the C34xx dual channel electrochemistry meter

  • pH:
  • Multi-point (1...5) calibration for more linearity.
  • Selectable resolution from 0.001 pH to 0.1 pH
  • Automatic calibration with any of nine pre-programmed and five user specified pH buffers
  • Accepts pH electrodes with any zero point (Eo) between +/-999 mV

  • mV
  • Features mV calibration for accurate ORP measurements
  • Selectable resolution from 0.1 mV to 1 mV

  • Conductivity
  • Multi-point(1...3) calibration for more linearity
  • Extended conductivity range; to measure the full range from 0.001 µS/cm to 2000 mS/cm requires 3 electrodes: 0.1, 1 and 10 cm^-1.
  • Works with 2 pole or 4 pole conductivity probes
  • Selectable reference temperature: 20° or 25°C.
  • Automatically selects correct range and frequency.
  • Automatic cell constant determination with any of three preprogrammed or user specified standard tables.
  • Allows to lock the initial conductivity range to avoid non-linear titration curves.
  • Accurate low conductivity measurements by eliminating the capacitive component of the electrode and its cable (avoid the use of long cables!).

  • Temperature
  • Reads temperatures with 0.1°C resolution
  • Manual or automatic temperature compensation.
  • Calibrates temperature probe for quality measurements.
  • Dissolved Oxygen
  • Use Galvanic Type DO probe,.
  • Automatic compensation for air pressure
  • Ion Concentration
  • Select from a wide range of ISE electrodes
  • Direct readout in concentration


  • Inputs
  • Two BNC inputs for pH, mV or standard 2 pole conductivity electrodes
  • Two DIN sockets for 4 pole conductivity probes SK40T and SK41T
  • Two corresponding reference inputs.
  • Two corresponding temperature inputs.
  • Low voltage DC input for e.g. a mains adaptor.
  • Outputs
  • USB or Ethernet options for interface for connection to a computer.
  • RS232 interface for connection to a printer.
  • Data-logging
  • Stores up to 12000 values including temperature, time and date.
  • Allows to mix data from all ranges in the same table.
  • A powerful data acquisition software for PC is available optionally.
  • Cabinet
  • Robust dust and splash-proof cabinet.
  • An optional wall mounting kit allows to fix the meter to any wall making more space available on the desk.
  • Display
  • A large bright LCD screen with white backlight enables to view all channels simultaneously.Stability indicator prompts the user when readings should be taken.
  • Hold function allows to freeze the display for convenient reading or recording.
  • The interactive LCD screen provides step by step instructions in the language of your choice (English, Dutch, French, German).
  • Real-time clock displays time and date.
  • Shows a GLP report on the LCD screen.
  • Free software
  • You can download free data acquisition software (DIS-1 version for the C30xx series only) from our website (www.consort.be).
  • Special features
  • Three year warranty.
  • No electrical interference between electrodes in the same solution.
  • Two-way communication with a printer or computer using RS232 or USB.
  • Can be programmed to continue automatically with the measurements or data-logging after a power failure.
  • Password protection prevents any unauthorised access to the instrument.
  • Optional 12 V car adaptor.
C4xx BackPanel
Introduction Consort C34xx high resolution Electrochemistry meter
The C34xx is a bench top (wall mount optional) electrochemistry meter covering a the extreme ranges of the conductivity from 0.001 uS/cm to 2000 mS/cm depending on the cell constant. The unit can work with cell constants between 0.05 and 15 inverse cms. To cover the full range of the meter three separate cells would be required with cell constants of 0.1, 1.0 and 10.0 Very accurate low conductivity measurements can be achieved because of the built in capacitance compensation. The temperature compensation can be switched off for absolute measurements  or referenced to 20C or 25C. The relative reading function allows you to directly measure the change in conductivity relative to some previously referenced level. 
For pH measurements there are two channels and these can be used to provide diffential pH measurement. (the difference between the readings on the two channels). The same feature can be applied to the mV readings.

The Meter will work with most standard two electrode conductivity cells and glass pH electrodes with BNC connectors and with 4 pole wide range conductivity probes SK40T and SK41T Some of the options are shown below.

Lab conductivity probe                                                          More conductivity cells here
0.1 cell constant conductivity cell
Conductivity probe with 3/4" NPT fitting
pH probe ( TuffTip ) with 3/4" NPT fitting
Specifications  C34xx
High resolution Conductivity / Resistivity / pH /mV meter

  Range -2...+16 pH


0.001 pH
Accuracy 0.1% ± 1 digit
Calibration 1...5 points
Buffers 11 pre-programmed
5 user specified
Temperature compensation -5...+105°C
ISO-pH 6...8 pH
Slope 80...120%
Zero point (Eo) ±999 mV
mV Range ±2000 mV
  Resolution 0.1 mV
Accuracy 0.1% ± 1 digit
Calibration 1 point
ION (C343x only) Range 0.01 ng/l...100 g/l
  Resolution 3 digits
Accuracy 0.5% ± 1 digit
Calibration 2...5 points + blank
CONDUCTIVITY Range (cc dependent) 0...2000 mS/cm
  Resolution (cc dependent) 0.001 μS/cm
Accuracy 0.5% f.s. of range
Calibration 1...3 points
Standards 3 pre-programmed
3 user specified
Cell constant (cc) 0.07...13 cm-1
Temperature compensation -5...+105°C
Reference temperature 20° or 25°C
Temperature coefficient natural waters (EN27888)
Range lock std.
Capacitive compensation std.
RESISTIVITY Range 0...200 MΩ.cm
Resolution 1 Ω.cm
SALINITY Range 0.0...70.0
Reference temperature 15°C
TDS Range 0...100 g/l
Resolution 0.01 mg/l
DISSOLVED OXYGEN Range 0...60 mg/l (0...600%)
Resolution 0.01 mg/l (0.1%)
Accuracy 1% ± 1 digit
Calibration 1 point
Temperature compensation 0...50°C
Salinity compensation 0...40<
Air pressure compensation 600...1300 hPa
TEMPERATURE Range -5...+105°C
Resolution 0.1°C
Accuracy 0.1°C
Calibration 1 point
AIR PRESSURE Range 600...1300 hPa
Calibration 1 point
CHANNELS Measurement 2
Temperature 2
INPUTS Measurement 2 BNC, 10e12 Ω
Temperature 2x2 banana, for Pt1000
4 pole conductivity 2 x DIN 9 for SK40T SK41T probes
CALIBRATION Reminder 0...999 h
GLP inc
DISPLAY LCD 240x64 pixels
White backlight  
Hold function  
Selectable resolution  
Real time clock  
COMMUNICATION Interface with computer USB or Ethernet
RS232, baud rate 1200...115200 b/s
DATA-LOGGING Data sets 12000 + °C/date/time
Modes all
Manual or timed  
Interval 1...9999 s
SECURITY Identification number std.
Password protection std.
AMBIENT CONDITIONS Temperature 0...40°C
Humidity 0...95%, non condensing
POWER SUPPLY Mains 100...240 VAC, 50/60 H
Low voltage 9...15 VDC
DIMENSIONS WxDxH 26x18x9 cm
WEIGHT Meter 1 kg
Ordering Information 
Model C3410 Meter only USB Interface /ph/mv/cond/salinity/TDS/DO
(no electrodes or chemicals )
Model C3411 Meter only Ethernet Interface /ph/mv/cond/salinity/TDS/DO $1425.00  
Model C3430 Meter only USB Interface /ph/mv/cond/salinity/TDS/DO/ ION concentration $1850.00  
Model C3431 Meter only Ethernet Interface /ph/mv/cond/salinity/TDS/DO/ION Concentration $2200.00  
A4800 Wall Mounting Kit $75.00  
A4049 12V car adaptor $25.00  

Conductivity cells
pH/ORP electrodes
Dissolved Oxygen
Ions Selective Electrodes



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