pH - mV - Ion - Conductivity - Resistivity - TDS - Dissolved oxygen - Temperature

D230
  • pH: 0...14 pH
  • mV: ± 2000 mV
  • Ion: 0...100g/l
  • Conductivity: 0...2000 mS/cm
  • TDS: 0...100g/l
  • Dissolved oxygen: 0...60 mg/l,
  • Temperature: -5...+105°C

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Modular System

  • Built in a standard 19 inch rack + cabinet the central unit accepts up to 7 modules. Different modules can be mixed in one unit.
  • There are two modules available: D291 & D292
  • D291: 4 pH/mV/Ion/dissolved oxygen + 4 temperature channels,
  • D292: 4 conductivity/TDS + 4 temperature channels.
  • Up to 16 units can be combined with each other to increase the number of channels up to 448.
  • All parameters including set-up, calibration and display are controlled through any computer via a single RS232 connection.
  • Up to  16 units can be combined with each other to increase the number of channels to a maximum

pH

  • One- or two point calibration.
  • Selectable resolution from 0.001 pH to 0.1 pH
  • Automatic calibration with any of 9 pre-programmed and 2 user specified pH buffers

mV

  • Features mV calibration
  • Selectable resolution for accurate ORP measurements.

Ion

  • Direct concentration measurement.
  • Shows concentration in any unit.
  • Ion mode is easily calibrated with any two standards and a blank correction.

Dissolved oxygen

  • Selectable resolution from  0.01 mg/l (0.1%) to 0.1 mg/l (1%)
  • Rapid air calibrationn, no zero calibration required.
  • Manuel salinity compensation 0-40
  • Manuel air pressure compensation 800-1200 hPa.

Temperature

  • Manuel or automatic temperature compensation .
  • Calibrates temperature probe for quality measurements.

Conductivity

  • One point  calibration
  • Use a 1 cm-1  electrode(standard) to measure from 0.01 µS/cm to 200 mS/cm.
  • Use a 0.01 cm-1  electrode to measure from 0.001 µS/cm to 2 mS/cm.
  • Use a 0.1 cm-1  electrode to measure from 0.01 µS/cm to 20 mS/cm.
  • Use a 10 cm-1  electrode to measure from 1 µS/cm to 2000 mS/cm.
  • Selectable refernce temperature: 20° or 25°C
  • Automatic calibration with any of three preprogrammed and three user specified standard solutions.
  • Accurate low conductivity measurements by eliminating the capacitve component of the electrode and its cable (avoid the use of long cables!).

Special features

  • Three year warrenty
  • No electrical interference between  electrodes in th e same solution.

Data acquisition

  • The software package supplied with the D230 is specially designed to control, collect and store data. Runs under WindowsTM 2000 or higher.
  • All channels are processed at the same time, each in its own window.
  • The sofware automatically detects the maximum number and type of available channels.
  • Data is collected on-line at a programmable interval determined by the program (4s...24h).

  

Table

  • Data is always stored in a table.
  • Each module has its own programmable table containing an unlimited number of lines (maximum depends on available computer memory).
  • Comments can easily be added to each  line in a special information column.

Starting

  • Data-logging can start/stop automatically or at a programmable date/time
  • Data-logging can be stopped or continued at any moment.

Files

  • All data is saved in a user defined file. Just open the file to view, process or print the stored data.All measurements are saved in CSV format which is easily transferred into spreadsheets.
  • All data is saved in a user defined file. Just open the file to view, process or print the stored data.

Graphs

  • Graphs are generated using automatic or user defined settings.
  • The number of visible  values can be changed at any time.
  • Programmable alarm limits for each graph allow to print a report  indicating when limits have been exceeded.
  • Shows statistics about minima, maxima, averages etc..

Settings

  • Languages: English, Dutch, or French
  • The style of each window can be set up separately.
  • Choose fonts, colours etc...
  • Documented printouts will show:-file name--name of operator-- name of the company-- name of the division-- optional notes by the operator.
  • All settings are stored in a configuration file and automatically recalled when opening the program.

Functions

  • All functions are accessible through the menu.
  • Only valid options appear in the menu to eliminate set-up errors.
  • Special buttons, icons and short-keys allow the user to easilly access the most useful functions.
  • The contents of each window can be transferred to other program by using a copy function. Tile or cascade the windows and arrange the icons fully  automatically or rearrange them manually.

CODE  DESCRIPTION
D230 Data-logger: central unit for 7 modules + software + RS232 cable + mains lead.
D291 Module for pH/mVIon/O2/°C with 4+4 channels
D292 Module for conductivity/TDS°C with 4+4 channels
D298 Data cable to connect 2 data-loggers with each other (optional)
D299 Blanc frontpanel to cover unused module space (optional)