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General| Brand | SOMMER |
|---|---|
| Model | SPA |
| Category | Measuring Instruments |
| Language | English |
Explains how the SPA sensor uses dielectric constants and frequencies for snow analysis.
Details the snow density, SWE, liquid water/ice content, and snow depth measured by the SPA.
Describes the SPA-sensor, a 6cm wide flat ribbon sensor available in lengths of 3 to 10m.
Measures sensor rope deformation to correct for snow pack effects on sloping sensors.
An ultrasonic sensor (USH-8) for measuring snow depth via transit-time.
The central unit that performs measurements, sensor switching, and data calculation/output.
The framework enables installation of sloping and horizontal sensors on a mast.
Specifies requirements for a representative measurement site: horizontal, clear, and undisturbed snow.
Details installation of the basement framework and mast for sensor mounting.
Guides installation of the ultrasonic sensor on the mast, 1m above expected snow depth.
Addresses considerations for the bend and tension of sloping SPA sensors during installation.
Describes the installation of the potentiometer-based correction length sensor.
Details the installation of horizontal SPA sensors at predefined levels on the rack.
Instructions for mounting the housing and connecting sensor cables.
Specifies the required supply voltage for the complete SPA system.
A summary of key installation steps for framework and sensors.
Describes connecting the IASP to a PC/laptop via serial interface, including local communication setup and affirmation.
Explains how to access the main menu for parameter configuration.
How to adjust the actual snow depth offset via the Main Menu.
Adjusting displacement offset and length correction for sensors with potentiometers.
Setting geometric parameters for accurate snow parameter calculation and sensor correction.
Adjusting the snow depth measurement offset and performing a test measurement.
Setting the measurement interval, with recommendations and warnings.
Explains the device identifier used in output protocols for data value identification.
Controls the time between measurements; recommended interval is 10 minutes.
Defines when data output occurs: after measurement or upon request.
Details RS232 output protocol parameters like protocol type and sync-out settings.
Configuration of RS232 interface parameters: baud rate, parity, data bits, stop bits.
How to adjust measurement values (offsets) for snow depth and analog inputs.
Setting SPA measurement and calculation parameters like snow depth excess and default temperature.
Explains how output values are structured in blocks of four, identified by string ID.
Details the MIO protocol, including string pattern, data format, and checksum.
Describes the standard protocol, differing from MIO by using blanks and omitting IDs.
Default values for device identifier, measurement interval, output time, RS232 settings, and output protocol.
Default values for SPA measurement parameters and Sensor_01 configuration.
Default geometric and offset values for Sensors 02, 03, and 04.
Details IASP module inputs, outputs, power supply, energy consumption, and protection type.
Covers measurement ranges for SWE, density, depth, operating temperature, and housing specifications.
Technical details for the SPA sensor (coating, cable) and framework (material, dimensions).
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