Data Logger Dipper-APT Absolute Pressure
High-performance:
32-bit microprocessor with 16 MB of memory for 1.120.000 readings
Virtually maintenance free:
No battery replacement necessary, no running operational costs
Slim:
Installation using 1" tube diameter (probe)
Accurate and reliable:
- Water level: 0.05 % measurement accuracy (= 1 cm at 20 m measurement range)
- A wide selection of ceramic capacitive absolute pressure transducers from 0.2 bar to 20 bar
- Temperature: 0.3 °C (standard), 0.1 °C (optional)
Robust:
Stainless steel housing 1.4404 (standard) or 1.4539 (option) for use in extreme conditions (landfill sites, contaminated, brackish water etc.)
Flood-proof:
Pressure-tight housing (IP68) suitable for measuring points that are regularly flooded. The barometric pressure compensation is carried out in conjunction with a synchronised clocked Baro-Dipper.
Variable:
Suspension with kevlar or steel cable (standard), multi-core special measuring cable with the RS485 interface (optional).
User-friendly:
Two clever APPs are available for configuration and data read-out of the Dipper-APT. Operating software for beginners SEBAConfig (Windows) a user-friendly interface (Wizard) for various routine tasks. SEBAConfigApp (Android,iOS) combined with SEBA BlueCon 2 enables conveneient communiction via Bluetooth between a smartphone or tablet with a logger.
Modular:
Using the pluggable data transmission module SlimCom together with the Dipper-APT (special cable version) allows the system to converted into an online station.
Water Level
Sensor | Absolute pressure sensor |
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Measurement Principle | Capacitive with ceramic measuring cell |
Measuring Range | 0-2 /1/4/5/20/40/100/200 m water column or according to specifications |
Measuring Accuracy |
± 0.05% FS |
Long Term Stability | ±0.1 %/year |
Water Temperature
Sensor | NTC30 with polynomial linearisation |
---|---|
Measurement Principle | NTC resistance |
Measuring Range |
-5 °C - +50 °C |
Measuring Accuracy | 0,3 °C Standard, 0,1 °C Option |
Logger
Controller |
32Bit Flash controller with integrated WatchDog RTC-IC Real-Time Clock |
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Memory Capacity | 16 MB (= 1.120.000 readings) |
Save Interval | 30 s - 99 hours, standard, from 1s in quick-log mode, option |
Channels | max. 32 (e.g. water level, temperature, battery voltage) |
Measurement Routines | Single value, average value, event clock, Delta mode, pumping test control |
Communication Interface | RS485 |
Operation |
Interface Converter (RS 485/USB) BlueCon (Bluetooth®) |
Power Supply | 2 x 3.6 V lithium AA size batteries |
Service Life | > 8 years at 60 min intervals |
Housing
Material | 1.4404 Standard, 1.4539 Option |
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Dimensions | Ø 22 mm, length: 300 mm |
Protection Class | IP68 |
Others
Operating Temperature | -20 °C - +70 °C (non-freezing) |
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Hanging Depth | Up to 1000 m |
Unit Suspension |
With Kevlar cable: None (default) With round cables: Diameter-independant for SEBA caps starting from a 2" pipe diameter (standard) Diameter-dependent insert panels for SEBA caps starting from a 2" pipe diameter (optional) |
Cable |
Kevlar cable (standard) Screened special measuring cable with RS485 interface (option) |