Conductivity meter
Used for the conductive measurement/control of electrolytic conductivity,resistivity or the TDS value. Conductivity is a function of ion concentration, ionic charge, and ion mobility. Ions in water co
- 型号： Conductivity meter
Used for the conductive measurement/control of electrolytic conductivity,resistivity or the TDS value. Conductivity is a function of ion concentration, ionic charge, and ion mobility. Ions in water conduct current when an electrical potential is applied across electrodes immersed in the solution. A controller system consists of a microprocessor-based controller and a conductivity probe.
4 Electrode cells（K=0.01,0.1,1.0 and 10.0）can be connected to the device. Temperature serves as the second input variable, measured by a Pt100/1000 probe. Depending on the measured variable, it is therefore possible to implement specific, automatic temperature compensation.
All adjustments to the current outputs, alarm relays, and calibration of the conductivity and temperature inputs can be made using the controller's membrane keypad.
Technical Features
Screen size | 2.8 inch |
Dimension | Overall dimension: 100mm*100mm*150mm(H*W*D) |
Cutout dimension：92.5mm*92.5mm(H*W) | |
Weight | 0.65Kg |
Ingress protection | IP54 |
Measure variables | EC/TDS/Resistivity |
Measure range | 0.01electrode：0.02 ~ 20.00μS/cm |
0.1electrode：0.20 ~ 200.0μS/cm | |
1.0electrode：2.00 ~ 2000μS/cm | |
10.0electrode：0.02 ~ 20.00mS/cm | |
Measure range for extended range controller： | |
0.01electrode：0.20 ~ 200.0μS/cm | |
0.1electrode：2.00 ~ 2000μS/cm | |
0.1electrode：0.02 ~ 20.0mS/cm | |
10.0electrode：0.20 ~ 200.0mS/cm | |
Temperature range:-10 ~130℃ | |
Temperature compensation | NTC10K/PT1000 |
Temperature compensation：manual/automatic | |
Accuracy | EC/TDS/Resistivity: ±1%FS |
NTC10K： (-10~5℃)±2℃；(5~60℃)±0.2℃； | |
(60~130℃)±2℃ | |
PT1000： (-10~5℃)±2℃；(5~130℃)±0.2℃ | |
Output | Isolated 4-20mA output |
maximum loop is 750Ω,±0.2%FS | |
Communication protocol | MODBUS-RTU RS485 |
Alarm relay | Pickup/Breakaway AC250V/3A |
Relative humidity | 10 ~ 85%RH(No condensation) |
Operating temperature | 0 ~ 60℃ |
Power supply | 220VAC±10% 50Hz/60Hz |
Storage conditions | Temperature：-15 ~ 65℃ |
Relative humidity：5 ~ 95%RH(No condensation) |
Electrode Size
K=0.01 electrode | K=0.1 electrode | K=1.0 electrode | K=10.0 electrode |
Suitable for pure water ultrapure water testing | Suitable for drinking water testing | Suitable for rive raw water testing | Suitable for sewage waste testing |
The device offers a far wider dynamic range on the input side, the range must be matched to the operating range of the cell
Cell constant (K) | Material | Length | Diameter | Hole size | Thread | Recommended / practical measuring span (depending on the conductivity cell) |
0.01 | Stainless steel | 77mm | 13mm | 6mm | NPT1/4 | 0.02 ~ 20 μs/cm |
0.1 | Stainless steel | 59mm | 13mm | 6mm | NPT1/4 | 0.20 ~ 200.0μs/cm |
1.0 | Stainless steel | 59mm | 13.5mm | 6mm | NPT1/4 | 2.00 ~ 2000μs/cm |
10.0 | Polysulfone | 60.5mm | 23.3mm | 6mm | NPT3/4 | 0.10 ~ 20 ms/cm |
Note:
When electrode works with SUP-TDS210-A (0-20,000us/cm)
Measuring span = 20,000 μs/cm x cell constant (K)