| CPHT 003 - Device for measuring conductivity and
pH |
|
 |
The device is designed to measure conductivity and pH of
solutions and solid substances;
- super pure, drinking, river and sea water;
- aqueous solutions of salts;
- alcoholic solutions of salts;
- acids, bases and other chemically active liquids by means of
a special conductivity electrode;
- milk, wine, soft carbonated and non-carbonated drinks;
- pH of solid substances (e.g. cheese, yellow cheese, yoghurt,
etc.) by means of a special pH electrode.
|
 |
| Technical specifications |
|
|
1. Conductivity measurement
1.1.Range: from 4,000 µs/cm to 4,000 s/cm in seven sub ranges.
1.2.Accuracy and resolution
| Range |
1S/cm* |
100ms/cm |
10mS/cm |
1mS/cm |
100µS/cm |
10µS/cm |
1µS/cm** |
| Accuracy |
± 1% |
± 0,5% |
± 0,13% |
± 0,13% |
± 0,13% |
± 0,5% |
± 1% |
| Resolution |
0,1 mS/cm |
10 µS/cm |
1 µS/cm |
10 nS/cm |
1 nS/cm |
0,1 nS/cm |
0,01 nS/cm |
1.3. Option for automatic and manual change of the sub ranges
1.4. Thermal compensation - automatic, through in-built thermal sensor
in the following modes:
- standard according to EN 27888
- linear with TKR = from 1 to 3,55% / °C
- switched off
1.5. Reference temperature - adjustable within the range from 0 to
99,9°C
1.6. Option for choice of one of 4 electrodes with constant values
from 0,01 to 10,00 cm-1 for individual preservation of
their constant values in calibration.
1.7. Calibration of the selected electrode - with any calibration
solution of known conductivity within the range from 0,4 to 40 mS/cm
at 25°C
2. Measuring pH
2.1. Range form 0,00 to 14,00 pH
2.2. Accuracy: ± 0,02 pH
2.3. Temperature compensation - automatic through separate thermal
sensor
2.4. Calibration - with standard solutions of pH = 7,00; 4,00; 10,00
2.5. Measuring pH of solid substances - by means of a special
electrode
3. Overall specifications:
3.1. Display - 4 x 16 sign/digital symbols with backlight
3.2. Power supply 4x1,5 V / 1,9 Ah alkaline rechargeable batteries and
AC adapter
3.3. Option for simultaneous measurement of pH and conductivity
3.4. RS 232 interface for connection with PC and printer
3.5. Option for switching on and off the indication backlight
3.6. Adjustable automatic switch-off of the device
3.7. Charge and discharge control of the rechargeable battery
3.8. Compact design
|
|
|
User
Guide Industrial pH Meter - 233 KB 
|
|
|
