Data Logger Dipper-PT Relative Pressure

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Category: Groundwater , Surface water – Data Logger

High-performance 32 bit measurement data collector optimized for water-level and temperature monitoring in ground and surface waters
XL ring memory for approximately 1,120,000 measurement data
Sturdy, sleek Ø 22 mm stainless-steel case
Accurate, long-term stable ceramic-capacitive pressure sensor of a max. 300 m measurement range
NTC30 temperature sensor with 0.3 °C (standard) or 0.1 °C (option) accuracy
Replaceable lithium batteries for about 8-10 years service life
Operation with notebook, tablet, PC, smartphone or tablet via Bluetooth® (optional)
Modularly expandable with a data transmission module SlimCom

Category: Hydrology Tags: data logger, hydrology

Data Logger Dipper-PT Relative Pressure

Benefits

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.

Application

Groundwater monitoring in wells, field measurement sites and landfill sites
Monitoring of pumping tests
Surface water-level monitoring in rivers, streams, channels, springs, flood retention basins, lakes, reservoirs …

Accessories

Operating software: SEBAConfig (Windows), SEBAConfigApp (Android, iOS)

Operating Unit: HDA-Pro HDA Tablet

Data readout: Dual Converter (USB, RS485), BlueCon 2 (Bluetooth®), RS485

External power supply: Power Pack

Remote data transmission: SlimCom

Measuring device protection: SEBA Bearing Tube Closure with a safety lock

Evaluation software: DEMASvis

Archiving Software: DEMASdb

Specifications

Parameters: Water level [cm], [m]

Sensor: Relative pressure probe

Measurement principle: Capacitive 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

Parameters: Water temperature [°C]

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

Memory capacity: 16 MB (= 1,120,000 readings)

Save interval: 30 s – 99 hours, standard, from 1s in the 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

Communications Interface: RS485 (with a protective cap and moisture absorber)

Operation: Dual converter (USB / RS232), BlueCon 2 (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 cable length)

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 1,000 m

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 the Goretex membrane pressure-compensation line. Desiccant cartridge with silica gel for protection of the pressure-compensation line.

Options: External battery supply for Dipper-PT, a recommendation for the quick-log mode

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

Service Life: 24 days at 1-second intervals