Automatic Titrator
COM-28/28S
Color Touch Panel in a Compact Body
- 4.3 inch color LCD touch panel
- Titration curve display
- Economy purge function
- Space saving
- Save data to USB memory
Although it is reasonably priced, it has a variety of functions!
It is also possible to upgrade from COM-28 to COM-28S for a fee, allowing you to meet future needs!
*Since sales availability, products and services vary by country and region, please contact your Hitachi High-Tech Science contact, the exclusive distributor, for specific requests and questions.
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Product features
1.Touch panel
4.3-inch color LCD touch panel offers a clear and easy-to-see image. Also comes with a stylus for precise control.
2.Titration curve display
Displays titration curves in real time. This makes it easier to consider appropriate measurement conditions and to identify factors that may cause variations or failures in measurement results.
3.Syringe
In addition to the standard 20mL, 50mL is available for use when more than 20mL is used per measurement, such as in isocyanate (NCO) analysis. An “economy purge function” is provided to automate reagent exchange and reduce liquid waste. (Available exclusively for 10mL and 20mL syringes.)
4. Space-Saving
Width 255 mm, depth 290 mm. Stirrer and burette integrated. It takes up little space and is easy to move.
5.Data Control
Able to store 50 previous data results in the main unit, upgradable to 9,900 results with USB memory. Optional software is available to view results on PCs and use the Recalc function.
6. Sequential [COM-28S]
Different components in a single sample can be measured sequentially. The results are obtained automatically, without the need to prepare each sample individually. Up to 3 items can be measured sequentially.
7. Buret Expansion [COM-28S]
Along with the built-in buret, up to two additional burets (B-28) can be installed. By specifying the buret number, various titrations can be performed without changing the titrant each time.
8. Photometric titration [COM-28S]
By connecting an optional measuring unit for photometric titration (M-28), it can be used for photometric titration to measure metal ions.
9. Smoothing function [COM-28S]
This function makes it easier to determine the endpoint when the inflection point of the titration is unclear.
10. Sample Changer [COM-28S]
The optional sample changer C-1712 helps productive and efficient measurement.(Installation stands required separately.)
Specification
| COM-28 | COM-28S | |
|---|---|---|
| Titration methods | potentiometric titration | Potentiometric titration Photometric titration (using M-28 unit for photometric titration) |
| Titration mode | Learn titration, Inflection-point detection, Set-point detection, Set point/Inflection-point detection, Cross-point (F, B) detection, Other functions: pH-Stat, pH measurement, Dispensing, Calculation | |
| Measuring range | pH : 0.00 ～ 14.00pH mV : -2000 ～ +2000mV Temperature : 0 ～ 100℃ Automatic/manual temperature compensation |
|
| Endpoint detection mode | Auto-detection using a second derivative, Set-point detection, Cross-point detection | |
| Number of endpoints detected | Up to 5 end points with a Learn titration file. Condition connection: Max. 3 endpoints | |
| Display | 4.3 inch color LCD touch panel | |
| Displayed content | Titration conditions, Data per drip, Titration results, Titration curve, Differential curve, List of titration results, Statistics calculation results, Condition settings display | |
| Memory data capacity (Each titration station) |
Built-in memory: 50 data points USB flash memory: (256MB or more) Maximum capacity approx. 9,900 data points |
Built-in memory: 100 data points USB flash memory: (256MB or more) Maximum capacity approx. 9,900 data points |
| Settings input method | key touch input | |
| Sample data | Sample No.: 2 digits, ID code: 16 alphanumeric characters | |
| Master file | 21 files | 51 files |
| Conditions file | 21 files | 51 files |
| Number of linked condition file | 3 files | 5 files |
| Titration control mode file | Standard files: 51 Manufacturer settings modes (0$201311), Blank modes (12$201319), User setting mode (20$201350) |
|
| Constant file (settings parameter of concentration calculation constant) |
51 files K, L (constants), F (factors), M or N (molarity or normality), B (blank mL), S (sample size) |
|
| Sample files | 20 files | 50 files |
| Auto input function | Function to automatically set titration results to constant parameters (blank, factor, etc.) . Condition files for automatic input can be designated. |
|
| Calculation function | Concentration calculation, Statistics calculations, pH automatic compensation | |
| Branching function | After measuring the potential prior to titration, branching into maximum 2 condition files | |
| Smoothing function | No | Yes |
| Number of electrode connectors | For Potentiometric : 2ch（BNC x2）φ2 pin conversion plug included For thermistors : 1ch *Compatible electrode is TE-405 |
|
| Buret | 1 Built-in | 1 Built-in, 2 Expansion (optional) |
| Buret capacity | Standard: 20 mL transparent syringe (with UV light shield protective cover) 10 and 50mL syringes available separately. |
|
| Min. dispensing volume | 0.005 mL (with 20-mL syringe) | |
| Buret accuracy | Relative accuracy: ±0.1% or less (with full capacity discharge from 20-mL syringe at factory settings (new)) Repeat accuracy: 0.01 mL or less (with full capacity discharge from 20-mL syringe, n=6 standard deviation) |
|
| GLP-compliant function |
|
|
| Stirrer | Magnetic stirrer 1 Stirring bar included |
|
| External input/output | RS-232C: 2 ports （For Balance 1, Computer or Printer connection 1） USB flash memory stick: 1 port |
|
| Power supply | Does not included AC/DC conversion adapter. Please prepare the following AC adapter. 1) AC Inlet : IEC60320 C14 2) DC output rated voltage : DC24V 3) DC output capacity : 60W or more (less than 100W) 4) Rated input voltage : AC 90V-240V (for the voltage of the place of use) 5) AC input frequency : 45～66Hz 6) Polarity symbols : Center positive 7) DC plug shape : Inner diameter: 2.1mm, Outer diameter: 5.5mm, Length: 9.5mm 8) Certified standards : CE marking 9) AC CODE : Must be compatible with the adapter specifications to be connected |
|
| Dimensions / weight | 255(W) × 290(D) × 430(H) mm / Approx. 6.0 kg | |
Option
- Application software for PC "Aqua-Net Viewer"
- Buret B-28 [for COM-28S]
- Photometric unit M-28 [for COM-28S]
- Sample Changer C-1712 [for COM-28S]
