Conductivity monitoring in liquid processes benefits from a compact device that measures, compensates and communicates directly with the control system. CONDIX4623 combines a 4-electrode conductivity cell with an integrated digital transmitter, providing process values, parameters, identification data and diagnostic data to a master such as PLC or SCADA via RS485 with MODBUS RTU.
The cell constant C = 0.5 1/cm covers applications up to 500 mS/cm. The design is resistant against pollution and not influenced by polarization effects or wire resistance, supporting reliable measurement in landfill seeping water, seawater and black water treatment on ships.
Installation uses pipe thread DIN ISO 228 (DIN 259; BSP), with process pressure up to max. -1..16 bar. Device parameters and input configuration are adjustable via the interface or SENSware, while six selectable temperature compensation types help match the measured liquid.
Measures conductivity of liquid media and provides temperature measurement for compensation.
Submits values and parameters to a master such as PLC or SCADA.
MODBUS RTU interface — RS485 Half-Duplex interface with MODBUS RTU and selectable baud rates of 1200, 2400, 4800, 9600 and 19200.
Device parameters and input configuration can be adjusted via the interface or SENSware configuration software.
Selectable modes include no compensation, linear coefficient, natural waters, ASTM-D1125 ultra-pure water, NaCl diluted solution, ASTM-D5391 acidic pure water and ASTM-D5391 alkaline pure water.
Process material consists of PVDF, casting resin and graphite electrodes.
8 pole round connector plug M12x1 with brass nickel plated design.
LEDs indicate supply voltage, bus communication and addressing status.
| Media temperature |
0...60 °C
|
|---|---|
| Pressure rating |
16 bar
|
| Cell constant |
0.5 1/cm exact cell constant labeled on the type plate
|
|---|---|
| Conductivity range |
0...500 mS/cm
|
| Accuracy temperature |
0.2 K
|
| Temperature compensation |
without; linear temperature coefficient; compensation of natural waters; ASTM-D1125 ultra-pure water; NaCl diluted solution; ASTM-D5391 acidic pure water; ASTM-D5391 alkaline pure water
|
| Temperature range |
-50...+200 °C
|
| Temperature sensor |
Pt1000, Class A
|
| Accuracy Conductivity |
±1 % OR (>2% of measure for <20μS/cm)
|
| Condensation |
not permitted
|
|---|---|
| Degree of protection case |
IP67
|
| Operating temperature |
-10...+60 °C
|
| Storage temperature |
-10...+60 °C
|
| Weight |
160 g
|
|---|
| Baud rate |
1200, 2400, 4800, 9600, 19200
|
|---|---|
| Interface type |
RS485
|
| Type of communication protocol |
Modbus RTU
|
| Electrical connection type |
8 pole round connector plug M12x1
For 8-pin round plug connector M12x1 IP67: M12 8-pole circular connector |
|---|---|
| Material |
Brass nickel-plated
For 8-pin round plug connector M12x1 IP67: Brass nickel-plated |
| Power supply |
4.7...28 V
|
|---|---|
| Current consumption |
max. 60 mA
|
| Wetted parts |
PVDF, Casting resin, Graphite
|
|---|---|
| Process connection |
For Cylindrical thread G ¾ A: G ¾"A
|
