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Multiparameter probe of the MPS PTEC
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Category: Water Quality – Sensors
- Multi-parameter sensor for detecting pressure, temperature, and conductivity
- High-quality 4-electrode conductivity measuring cell
- Ceramic-capacitive pressure sensor with high measuring accuracy (0.05% FS) and long-term stability (0.1%/year)
- Sturdy, sleek Ø 22 mm grade 1.4539 stainless-steel housing for extreme conditions
- Output: RS485, Option: MOD-BUS, SDI-12, 4-20 mA
- Optional with integrated data logger: variant “Dipper-PTEC“
Benefits
Wide measurement range, high resolution: The MPS-PTEC comes equipped with an automatic measuring range switch (0-0.2 mS/cm; 0.2-2 mS/cm; 2-20 mS/cm; 20-200 mS/cm) which ensures that the best resolution is always available even with significant measuring range fluctuations.
Plug-and-play: Convenient connection with a SEBA data logger via RS485 or process control systems (MODBUS, 0/4-20 mA), easy configuration, and calibration via RS232-USB interface cable using operating software ConfigPC (Windows).
Last but not least: In addition to conductivity measurement, salinity, TDS values, and water density can also be calculated and displayed.
Application
- Monitoring of conductivity, water level and water temperature in surface water: rivers, canals, springs, lakes
- Groundwater: extraction wells, field measurement sites, landfill, and construction sites
- Other applications include: discharge monitoring, swelling pressure measurement
Accessories
Data collector:
External:
Internal:
Calibration:
- Dual converter (USB/RS232 – RS485)
Operating software:
- SEBAConfig (Windows)
Specifications
Parameters: Water level [cm], [m]
Sensor: Relative pressure sensor
Measurement principle: Capacitive with ceramic measuring cell
Measuring range: 0-2/5/10/20/30/40/50/70/100/200/300m water column or according to specifications
Measuring accuracy: ± 0.05% FS
Long-term stability: ± 0.1% / year
Parameters: Water temperature [°C]
Sensor: NTC30 with polynomial linearization
Measurement principle: NTC resistance
Measuring range: -5 – +50°C
Measuring accuracy: 0.1°C
Pressure Range: 0-30 bar
Parameters: Conductivity [µS/cm], [mS/cm]
Derived parameters: solutes [g/l], salinity, density [g/l]
Sensor: 4-electrode measuring cell
Measuring range:
- 0-200mS/cm (total)
- Automatic measuring range switchover: 0-200µS/cm; 0,2-2mS/cm; 2-20mS/cm; 20-200mS/cm
Measuring accuracy: ± 1µS/cm for measuring range of 0-200µS/cm +/- 0,5% for measuring range of 0,2-200mS
Pressure Range: 0-30 bar
Housing Material: Grade1.4539 stainless steel
Dimensions: Ø22mm, length: 320mm
Protection class Probe: IP68
RS485 interface: IP67 (immersion depth with a desiccant cartridge up to 3 m, depending on the cable length)
Outputs: RS485 (SHWP) standard, MODBUS, SDI12, 4-20mA (Option)
Communications Interface: RS232
Power supply: 4-15 VDC
Operating temperature: -5°C – +60°C (non-freezing)
Hanging depth: up to 1000m
Cable: Reinforced special measuring cable with pressure compensation line
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