| Modular
System |
The
electrochemistry data logger is a modular system housed in a
standard 19" rack. There are two different types of modules
Type 1 - 4 channel pH/mV/Ion/Oxygen + 4 temperature channels
Type 2 - 4 channels conductivity/salinity + 4 temperature channels
All parameters including setup and calibration are controlled
through the computer with a single RS232 connection. Up to 7
modules (28 channels can be loaded into one unit. Up to 16 units
can be daisy chained together to increase the total number
of channels to 448 |
| pH |
One or two
point Calibration
Selectable resolution from 0.001pH to 0.1pH
Automatic calibration with any of nine pre-programmed and two user
specified pH buffers. |
| mV |
Features mV
calibration for accurate ORP measurements
Selectable resolution from 0.1 mV to 1 mV. |
| Ion |
Direct
concentration measurement.
Shows concentration in any unit.
Ion mode is easily calibrated with any two standards and a blank
correction |
| Conductivity |
Six
conductivity ranges (common for all channels per module).
Five salinity ranges (common for all channels per module).
Use a 1 cm-' cell to measure from 0.1 _S/cm to 200 mS/cm.
Use a 0.1 cm-' cell to measure from 0.01 _S/cm to 20 mS/cm.
Use a 10 cm-' cell to measure from 1 _S/cm to 2000 mS/cm.
Selectable reference temperature: 200 or 25°c.
Automatic cell constant determination with any of three
preprogrammed standards or a user specified standard. |
| Dissolved
Oxygen |
Selectable
resolution from 0.01 ppm/ 0.1% to 0.1 ppm/ 1%.
Rapid air calibration, no zero calibration required.
Manual salinity compensation 0-40 g/l.
Manual air pressure compensation 800-1200 hPa |
| Temperature |
Manual
or automatic temperature compensation.
Calibrates temperature probe for quality measurements. |
| Data
acquisition |
The software
package supplied with the D230 is specially designed to control, collect and store data. Runs under Windows 95 or
higher.
All channels are processed at the same time, each in its own
window.
The software automatically detects the maximum number and type of
available channels.
Data is collected at an interval determined
by the user (4 s (*) ... 24 h). |
| Data
Tables |
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. |
| Start/Stop
logging |
Data-logging
can start/stop automatically or at a programmable date/time.
Data-logging can be stopped or continued at any moment.
By using a program-key, the data-logging will start automatically
after opening the program.
Data, which is stored in the internal memory of a connected
instrument, can also be read and processed. |
| Files |
All data is saved in a user defined file. Just open
the file to view, process or print the stored data.
The incoming data from the RS232 port can be stored immediately in
a file.
All measurements can be saved in TXT format which is easily
transferred into spreadsheets. |
| 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 permit to print a report
indicating when limits have been exceeded.
Shows statistics about minima, maxima, averages etc... |
| Settings |
The style of each window can be set up separately. Choose fonts, colors etc...
Printouts will show:
- file name.
- date and time.
- name of the operator.
- name of the company.
- name of the division.
- description of the instrument.
- serial number of the instrument.
- optional notes by the operator.
All settings are stored in a configuration file. |
