OTT HydroMet - Model Orpheus Mini - Water Level Logger
From Water Level
The OTT Orpheus Mini is an integrated pressure sensor and datalogger for level measurement in surface and groundwater applications. It features a robust ceramic measuring cell for long term accuracy and its built in datalogger manages and stores all measurements at user-programmable intervals.
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Product Details
- Application: Surface water, Groundwater
- Measurement technology: Vented pressure cell
- Parameters measured: Waterlevel/Pressure, Water temperature
- Product Highlights: Measures and stores water level and temperature data
- Measurement range: 0 … 4, 10, 20, 40, and 100 m
- Accuracy: ± 0.05% FS
- Internal data logger: Yes
Advantages
- Accurate – Ceramic pressure cell, unlike membrane technology, will not deform over time providing long-term measurement stability
- High Performance – Mechanical resistance to pressure overload and corrosive waters
- Complete Solution – Pressure sensor with built-in data logger manages and stores pressure, depth to water, water level (stage), and/or temperature measurements at programmable intervals
- Flexible Installation – Easily installs in wells or pipes of 1 in. diameter or larger with use of convenient adapter plates
- Simple Maintenance – Infrared interface, batteries, and desiccant are accessible at the top of the well or pipe and no tools are required
Example of Use
For continuous or continuous real-time water level measurement of:
- Streams, rivers, channels, or canals
- Groundwater wells
- Reservoirs, lakes, and wetlands
Ideal for monitoring:
- Continuous water level networks
- Short-term or long-term
- Events
- Pump tests
- Landfill groundwater levels
Technical Data
Waterlevel measurement:
- Measuring ranges: 0 ... 4 m, 10 m, 20 m, 40 m, 100 m
- Accuracy, pressure sensor: ± 0.05 % FS
- Resolution, pressure sensor: 0.01 % FS
Temperature measurement:
- Measuring range temperature: -25 °C ... +70 °C (ice-free)
- Accuracy temperature: ± 0.5 °C
- Resolution temperature: 0.1 °C
Electrical data:
- Power supply: 3 x 1.5 V LR6-cells Alkaline- or Lithium-type
- Lifetime (at 1 h reading interval):
- with Lithium batteries: min. 5 years
- with Alkaline batteries: min. 1.5 years (high quality battery types)
- Interface: Infrared (IrDA)
Data Logger :
- Memory: 4 MB non-volatile
- Number of measured values: approx. 500,000
- Reading interval: 1 second ?... 24 hours
- Storage interval: 1 second ...? 24 hours
- Logging type - selectable: linear, logarithmic - free progammable (logging table) for pumping tests , event triggered delta data logging
- Installable in well pipes: ≥ 1'
- System length: 1.5 ... 200 m ±1% ±5 cm (cable length incl. communication unit/pressure probe)
- Material: ABS, POM, 904 L (DIN 1.4539)
Weight:
- Communication unit (incl. batteries): approx. 0.410 kg
- Pressure probe: approx. 0.300 kg
Dimensions:
- Communication unit L x Ø: 400 mm x 22 mm
- Pressure probe L x Ø: 195 mm x 22 mm
Operating Conditions:
- Temperature-compensated working range: -5 °C ... +45 °C (ice-free)
- Storage temperature: -40 °C ... +85 °C
- Operating Temperature: -20 °C ... +70 °C
- Humidity: 100 %
Type of protection:
- Communication unit: IP67 (immersion depth max. 2 m
- duration of immersion max. 24 h)
- Pressure probe: IP68
- EMV limits: IEC61326/EN61326 are compliant with EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 550222 class B
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