CONDUCTIVITY CONTROLLER CC-421
CC-421 is a stationary device used for continuous conductivity and temperature measurements in clear water or sewage. The device is available in three versions - equipped with two relays; - equipped with 0 ÷ 20 mA or 4 ÷ 20 mA, current loop; - equipped with RS-232 output to connect with a computer. Optionally, the connection may be made by USB output with use of RS to USB converter (additional equipment). The device enables 1-point calibration of the measuring cell by entering the constant K value or in standard solution with value set in the device's memory. It is possible to calibrate it without the need of disconnecting the outputs.
Characteristic features:
- Meter is equipped with a backlit LCD display.
- 4 sub-ranges switched automatically.
- Possibility to choose between two versions of the device: conductivity or salinity measurement version (converted to the NaCl – up to 150 g/l).
- Converting conductivity into salinity based on the actual characteristics, not on a constant coefficient.
- Automatic temperature compensation.
- Constant temperature α coefficient 2 %/°C.
- Reference temperature: 25 °C.
- 24 months of warranty, quick warranty and after-warranty service.
TECHNICAL DATA
Function | Conductivity | Salinity | Temperature |
---|---|---|---|
Range |
0 ÷ 199.9 mS/cm, 4 subranges - autorange |
NaCl 0 ÷ 150 g/l | -50.0 ÷ 199.9 °C |
Accuracy (± 1 digit) | ±0.25 %* | ±2 %* | ±0.1 ** |
Temp. compensation | -5 ÷ 70 °C | -5 ÷ 70 °C | - | α coefficient | constant 2 %/°C | constant 2 %/°C | - |
K constant | 0.010 ÷ 1,999 cm-1 | - | - |
Temperature sensor | Pt-1000 | ||
Relays' parameters | 2A/250VAC/30VDC | ||
Isolation class | according to PN-83/T-06500 | ||
Radioelectric interference | N level | ||
Power supply | 12 V / 100 mA power adapter | ||
Dimensions (mm) | L = 149; W = 82; H=22 | ||
Weight | 220 g |
* | The accuracy of the meter only. |
** | The accuracy of the meter only. The total error includes the meters and probe's accuracy. In the range 0 ÷ 100 °C the acceptable error of the probe with Pt-1000B resistor: ±0.8 °C , with Pt-1000A resistor: ±0.35 °C. |