Data Logger Dipper-PT Relative Pressure
High-performance:
32-bit microprocessor with 16 MB of memory for 1,120,000 readings
Virtually maintenance free:
A battery change is not necessary, and so ongoing operating costs are not incurred.
Slim:
Installation using 1" tube diameter (probe)
Smart:
For each measuring task - a suitable measurement routine: single value measurement, average value measurement, event control (swelling mode, Delta Mode), flow calculation (W/Q table, polynomial).
Accurate and reliable:
- Water level: 0.05 % Measurement accuracy (= 1 cm at 20 m measuring range)
- A wide selection of ceramic capacitive pressure transducers from 0.2 bar to 30 bar
- Temperature: 0.3 °C (standard), 0.1 °C (optional)
Robust:
Stainless steel housing 1.4404 (standard) and 1.4539 (option); can also be used under extreme environmental conditions (landfills, contaminated sites, brackish water etc.)
Flood-proof:
2-step, permanent flood protection up to 3 m water column
User-friendly:
Two clever APPs are available for configuration and data read-out of the Dipper-PT. Operating software for beginners SEBAConfig (Windows) a user-friendly interface (Wizard) for various routine tasks. SEBAConfigApp (Android, iOS) and BlueCon 2 (Bluetooth® module) can be conveniently combined for configuration and data collection of Dipper-PT via Bluetooth® with a smartphone or tablet.
Modular:
The data transmission module SlimCom can be combined with Dipper-PT to transmit the data directly to your workstation. For measuring tasks with short recording intervals starting from 1 second (e.g. for pumping tests) the use of an external power pack module is recommended.
Water Level
| Sensor | Relative pressure sensor |
|---|---|
| Measurement Principle | Capacitive with ceramic measuring cell |
| Measuring Range |
0-2/1/4/5/20/40/100/200/300 m water column or according to specifications |
| Measuring Accuracy | ± 0.05% FS |
| Long Term Stability | ±0.1 %/year |
Water Temperature
| Sensor | NTC with polynomial linearisation |
|---|---|
| Measurement Principle | NTC resistor |
| Measuring Range |
-5 °C - +50 °C |
| Measuring Accuracy | 0,3 °C Standard, 0,1 °C Option |
Logger
| Controller | 32 Bit Flash controller with integrated WatchDog RTC-IC Real Time Clock |
|---|---|
| Memory Capacity |
16 MB (= 1,120,000 readings) |
| Save Interval | 30 s - 99 hours, standard, from 2 s in the quick-log mode, optionally |
| 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 (with protective cap and moisture absorber) |
| Operation | Interface Converter (RS 485/USB), BlueCon (Bluetooth) |
Housing
| Material | 1.4404 Standard Stainless Steel or 1.4539 High-Grade Stainless Steel (optional) |
|---|---|
| Dimensions | Ø 22 mm, length: 300 mm |
| Protection Class |
Probe: IP68 RS485 interface: IP67 (immersion depth with a desiccant cartridge up to 3 m, depending on the cable length) |
Others
| Power Supply | 2 x 3.6 V lithium AA batteries |
|---|---|
| Service Life | > 8 years at 60min intervals |
| Operating Temperature | -5 °C - +60 °C (non-freezing) |
| Hanging Depth | Up to 1,000m |
| Suspension Unit |
Independently of the diameter for SEBA caps from the 2" pipe diameter, standard diameter-dependent suspending boards for SEBA caps from 2" pipe diameter, optional |
| Measuring Device Protection | Protective caps for the RS485 interface (dust and moisture protection) |
| Cable |
Specially reinforced measuring cable with Goretex membrane pressure-compensation line. Desiccant cartridge with silica gel for protection of the pressure-compensation line. |
Power Pack
| Material | 1.4404 standard stainless steel, 1.4539 high-grade stainless steel (optional) |
|---|---|
| Dimensions | Ø 35 mm, length: 345 mm |
| Protection Class | IP68 |
| Power Supply |
4 x 1.5 V alkaline manganese batteries, standard |
| Service Life | 24 days at 1 second intervals |
