SR50A-EE

Anodized Sonic Distance Sensor for Extreme Environments
SR50A-EE

SR50A-EE

Limited availabilityConfigurable

Anodized Sonic Distance Sensor for Extreme Environments

Designed to operate in extreme environmental conditions where corrosion is a concern (such as coastal regions).

Model:
SR50A-EE
Item Number:
29019
Warranty:
2 years
Lead time:
21 days

Overview

Sonic Ranging Sensor for Extreme Environments (-45 to +50C) w/o Cable

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

Rugged
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)

Related Resources

Connect With Us

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Phone Numbers
General: (435) 227-9000
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Corporate Address
815 W 1800 N
Logan, UT 84321
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Email Address
sales@campbellsci.com

As a trusted leader in measurement systems for more than 50 years, our top priority at Campbell Scientific has always been to provide the most accurate, reliable data for research and industry.