Campbell Scientific has designed and manufactured environmental monitoring and control systems since 1974. Our equipment is widely used by scientists, engineers, plant managers, and reservoir managers in geothermal-research and power-production applications. Typical systems include weather stations, groundwater measurement systems, direct-use BTU measurement systems, and systems for independent pump and turbine performance monitoring.

Weather/Mechanical Measurements
Our stations provide long-term, standalone monitoring of meteorological and mechanical parameters for all types of geothermal-research and power-production applications. Programmable dataloggers allow multiple options for station configuration, measurement and output intervals, and data retrieval. Almost any meteorological sensor can be used, including: wind speed and direction, solar radiation, temper-ature (air, water, equipment), relative humidity, dew point, precipitation, and barometric pressure. Wind vector, vapor pressure, wet-bulb temperature, BTU or KWh production, and sample on maxima or minima are standard in the datalogger instruction sets. Data are viewed and stored in the units of your choice (e.g., wind speed in mph, m/s, knots).

Advanced geothermal measurement systems provide independent turbine and pump performance monitoring with measurements that include: electrical current, voltage, wattage, power quality, stress, torque, electric field, lightning potential, vibration, strain, load, temperature, tilt, flow, and pressure.

Dataloggers
All of our measurement systems are based around programmable dataloggers that measure sensors, then process or store data. We designed our dataloggers to allow a high degree of flexibility. Measurement types, scan rates, and recording intervals are all programmable. Onboard processing instruction sets contain programmed algorithms that process measurements and output results in the desired units of measure. Our dataloggers can also control external devices, such as valves and samplers, based on time or conditional events.

Communications
Multiple telemetry and on-site options for retrieving data or reporting site conditions allow our systems to be customized to meet exact needs. Communication options include direct connect, radio, telephone, cellular phone, voice-synthesized phone, satellite, and Ethernet. Systems can be programmed to send alarms or report site conditions by calling out to computers, phones, radios, and pagers. Dataloggers are compatible with DNP 3.0, Modbus, and CanBus systems.

Software
Our PC-based support software simplifies the entire data-acquisition process, from programming to data retrieval to data display and analysis. Our software automatically manages data retrieval from networks or single stations. Robust error-checking ensures data integrity over almost any communication link.

Benefits of Our Systems

• Proven reliability, even in harsh environments
• Long-term, standalone monitoring
• Support for nearly every available sensor
• Multiple communication options: Ethernet, radio, satellite, phone, cell phone
• DNP3 and ModBus compatible
• Research-grade measurement quality
• Unmatched customer support

Typical Systems

• Weather stations
• Groundwater measurement
• Direct-use BTU measurement
• Independent pump-performance monitoring
• Turbine performance monitoring

Resources