SR50A-EE
SR50A-EE
Limited availabilityConfigurableAnodized Sonic Distance Sensor for Extreme Environments
Designed to operate in extreme environmental conditions where corrosion is a concern (such as coastal regions).
Pricing
- Model:
- SR50A-EE
- Item Number:
- 29019
- Warranty:
- 2 years
- Lead time:
- 21 days
Overview
Note: This product has limited availability. Please consider the SnowVue™10 Digital Snow-Depth Sensor for snow-depth measurements and the TempVue™20 Pt100 Digital Air Temperature Sensor or HygroVue™10 Digital Temperature and Relative Humidity Sensor with M12 Connector for air temperature measurements.
The SR50A-EE is an anodized version of Campbell Scientific's acoustic sensor for measuring the distance from the sensor to the snow surface. The sensor has been designed to operate in extreme environmental conditions where corrosion is a concern (such as coastal regions). The SR50A-EE features an aluminum body that has been treated with a Type III, hard-anodizing process (MIL-A-8625 Type III) that delivers best-in-class corrosion and wear resistance.
To properly calculate snow depth from the measured distance, an air temperature measurement is required to correct for variations of the speed of sound in air. This sensor is compatible with most Campbell Scientific data loggers.
Key Advantages
Corrosion-resistant chassis and transducer
Technical Description
The SR50A-EE was designed to meet the stringent requirements of measuring depths and uses a multiple echo processing algorithm to help ensure measurement reliability.
SDI-12, RS-232, and RS-485 output options are available for measuring the SR50A-EE. Campbell Scientific’s MD485 interface can be used to connect one or more SR50A-EE sensors in RS-485 mode to an RS-232 device. This can be useful for sensors that require lead lengths that exceed the limits of either RS-232 or SDI-12 communications. The SR50AH is available with a heater option for locations where rime ice is a problem.
Benefits
- Type III, hard-anodized body for increased resistance to corrosion and wear
- Open-faced transducer for increased corrosion resistance and decreased maintenance
- Non-contact method for determining snow depth
- Wide operating temperature range
- Designed for coastal or corrosive environments
- User-selectable options for output
- Uses a multiple echo processing algorithm to help ensure measurement reliability
- Compatible with most Campbell Scientific data loggers
Specifications
- Measurement Time
- < 1.0 s
- Output Options
- SDI-12 version 1.3, RS-232, RS-485
(output options selected by configuring internal jumpers)
- Baud Rates
- 1200 to 38400 bps
(RS-232, RS-485 modes)
- Power Requirements
- 9 to 18 Vdc
(typically powered by data logger’s 12 Vdc power supply)
- Measurement Range
- 0.5 to 10 m
(1.6 to 32.8 ft)
- Beam Acceptance
- ~30°
- Resolution
- 0.25 mm
(0.01 in.)
- Accuracy
- ±1 cm (0.4 in.) or 0.4% of distance to target (whichever is greatest).
Requires external temperature compensation.
- Operating Temperature Range
- -45° to +50°C
- Compliance
- CE compliant
- Length
- 10.1 cm
(4.0 in.)
- Diameter
- 7.5 cm
(3 in.)
- Weight
- 362.9 g
(12.8 oz) without cable
- Cable Weight
- 250 g
(8.2 oz) for a 4.57-m (15-ft) cable
Maximum Cable Length
- -NOTE-
- Cable lengths greater than 60 m require a heavier gage wire if the power supply drops below 11 Vdc.
- SDI-12
- 60 m
(200 ft)
- RS-232
- 60 m
(200 ft)
Baud rates ≤ 9600 bps - RS-485
- 300 m
(984 ft)
Power Consumption
- Active
- 250 mA
(typical)
- Quiescent SDI-12 Mode
- < 1.0 mA
- Quiescent RS-232/RS-485 Modes
- < 1.25 mA (≤ 9600 bps)
- Quiescent RS-232/RS-485 Modes
- < 2.0 mA (> 9600 bps)
Accessories
(9)19517
SR50A and SnowVue Mounting Kit
Orderable19484
SR50A and SnowVue Mounting Stem
Orderable17953
1- x 1-in. Nu-Rail Crossover Fitting
OrderableCM220
Right-Angle Mounting Kit
RetiredCM221
Right-Angle Mounting Kit
OrderableCM230
Adjustable Inclination Mounting Kit
OrderableCM230XL
Adjustable Angle Mounting Kit, Extended Length
Orderable33815
SDI-12 Terminal Bus Kit
Orderable39120
DIN Rail Terminal Kit with 2 Terminals and 5 Wires
Orderable
Related Resources
Documents
- Compliance
SR50A-EE EU Declaration of Conformity
March 2022
View Document - Brochure
SR50A-EE Anodized Sonic Distance Sensor for Extreme Environments
March 2026
View Document - Compliance
SR50A-EE FCC Supplier Declaration of Conformity and FCC Statement
March 2020
View Document - Compliance
SR50A-EE UK Declaration of Conformity
March 2022
View Document - View all documents