Tag Archive: environmental monitoring

SDI-12: The Technology Behind Smart Sensors

Intelligent Data Recorders and Sensors
CHESTERLAND OH—September 8, 2014

has become the environmental standard of choice for environmental monitoring applications. At CAS DataLoggers we’ve put together this brief introduction to the SDI-12 standard highlighting the advantages your business or organization can realize from using SDI-12 data loggers and sensors. Read more about this flexible technology in our latest White Paper.

Wireless Environmental Monitoring in a Museum

Eltek Wireless Data Logging System Covers All Points

Eltek has supplied the next-generation wireless monitoring system for the interior of a prestigious museum located in Cambridge, England to ensure that the exhibits are in a controlled and non-damaging environment. Therefore museum curators needed a flexible monitoring system with a broad range of data logger capabilities. Read more in our Environmental Monitoring Applications Notes page.

Improving Early Warning Systems for Predicting Cyclones

CAS DataLoggers provides the dataTaker intelligent solution

CAS DataLoggers provides the dataTaker intelligent solution

Comprehensive Weather Monitoring Using a dataTaker DT80
CHESTERLAND OH—January 30, 2013

The extensive mining and port facilities situated in remote tropical northwest Australia means that it is essential that the most accurate weather data indicating cyclone formations is available to these vulnerable businesses. Recently the management of a shipping company wanted their own environmental monitoring device to achieve this. The company requested a single solution which could connect with several weather station sensor types and log nearly real-time data for periodic monitoring while sending its readings to a remote office location. Read more on our Environmental Monitoring Applications Notes page.

Wireless Greenhouse Monitoring and Control

A fruit crop experiment station needed a monitoring and control solution for its climate systems in a number of greenhouses. The proposed system needed to monitor soil moisture content and temperature and actively control irrigation and airflow by opening and closing windows. An intelligent system was required to minimize the manual workload, up to the point where data collection had to be fully automated. The customer contacted CAS DataLoggers to find a wireless network-capable system which needed to include the ability to control relays and solenoids, large data storage, and perform automatic data downloads. Read more on our Environmental Applications Notes page.

10 Things to Know Before Purchasing a Data Logger for Remote Monitoring

Fast Data Collection and Retrieval for Remote Applications

Remote monitoring applicationsRemote monitoring applications in fields such as oil and natural gas extraction, environmental monitoring, and fleet management often require close attention to detail. Users need to accurately record and track several variables including temperature, flow, strain, stress, vibration, and more. Therefore, when purchasing a new data logging solution, it’s crucial to understand the exact capabilities and specifications of the device you need. However, the sheer variety of data loggers and data logging systems can often make it difficult to choose the best model for your application. Read more on our White Paper page.

CAS Announces New dataTaker DT82EM Environmental Data Logger

All the Functionality of the DT82E With Built-In GSM Modem

CHESTERLAND OH—October 12, 2011

CAS DataLoggers has partnered with bestselling manufacturer dataTaker to announce the new DT82EM Intelligent Environmental Data Logger with Internal Modem, a real-time data acquisition solution boasting the same functionality as the popular DT82E model but adding a built-in GSM modem with email and SMS support for automated data and alarm transfer from remote sites. Based on the successful DT8x platform, the ultra low-power DT82EM is designed specifically for remote data logging applications where conventional access to the logger is difficult or impractical, such as environmental monitoring, agriculture, weather stations, temperature profiling, wind power generation, and many others including mobile applications in vehicles. This extremely flexible, easy to use solution also provides an impressive array of advanced alarm and programming capabilities enabling the loggers to process measurements and initiate actions on their own.

This robust temperature monitoring solution features a built-in LCD display and 2 to 6 universal analog sensor channels at ± 30V input measurement range recording at 18-bit resolution. The DT82EM also features flexible digital channels and 4 bi-directional digital channels as well as an SDI-12 channel. The datalogger’s Dual Channel Isolation allows 4, 2 wire differential or 6 common referenced analog inputs to be used in many combinations. Along with the analog and digital channels, 4 high-speed counter channels allow the DT82EM to easily connect to most data measurement sources and sensors including SDI-12 and Modbus. Temperature, voltage, current, 4-20mA loops, resistance, bridges, strain gauges, and frequency can all be scaled, logged and returned in engineering units or within statistical reporting.

The DT82EM’s extensive communications features include HTTP, FTP, email and SMS using the internal GSM modem, Ethernet and USB memory stick data collection. Users can archive data on alarm event, copy to USB memory or transfer via FTP–the choice is theirs. User-defined memory stores up to 10 million data points, and users can log as much or as little as needed with independent control of schedule size and mode, and overwrite or stop logging once allocated memory is full. There’s no need to travel long distances to access data—just utilize the internal modem’s automatic data delivery features to schedule all data to be automatically emailed to a specified inbox every day, week, month, or other time interval. Configurable alarm conditions can also trigger data delivery in addition to sending alarm messages to multiple email addresses or mobile phones via SMS messaging.

The dataTaker DT82EM’s durable and compact construction along with its wide operating temperature range of -45°C to 70°C (-49°F to 158°F) guarantees reliable operation in virtually any environment, and the device can also run on external battery or solar power for extended periods of time. Additionally, the failsafe DETERMINEDTM communications feature periodically retries downloads interrupted by network outages until the file gets through, so users never have to worry about data gaps.

Free dataTaker dEX software is included to allow users to quickly configure the data logger directly in a web browser, remotely access logged data, and monitor measurements in real-time, viewed as mimics or charts using a Windows Explorer-style graphical interface. Data download is performed using a standard web browser – no special software is required. This intuitive software guides the operator through configuration, suiting both new and experienced users. The DT82EM’s integral modem is predominately preconfigured for simple setup using the dEX operator interface, and also enables users to reconfigure the remote monitoring system via the Internet.

CAS Applications Specialist Doug McVeen commented, “The new dataTaker environmental loggers with the modems built in are a great value for our customers, providing not only remote monitoring capability but also amazing durability. They’re an ideal choice for environmental projects where communication is a top priority.”

For further information on the DT82EM environmental data logger, other dataloggers in the highly successful dataTaker line, or to find the ideal solution for your application-specific needs, contact a CAS Data Logger Applications Specialist at (800) 956-4437 or visit the website at www.DataLoggerInc.com.

Check out the DT82EM product page here. You can view additional environmental dataloggers in inventory here.

Contact Information:
CAS DataLoggers, Inc.
12628 Chillicothe Road
Chesterland, Ohio 44026
(440) 729-2570
(800) 956-4437

Monitoring and Measuring Pollutants in a Heavily Populated Bay Area

CHESTERLAND OH—October 11th, 2011

CAS DataLoggers recently provided the Environmental Protection Agency with the datalogging solution for an important research project. The EPA was obliged by law to monitor the condition of a bay adjacent to a major US city. To achieve this, there was a need to measure the ecological consequences of wastewater outflows from the city and the bay’s capacity to cope with them. The bay covered 1,200 square miles and received the wastewater flows from the city and its suburbs, which sat directly on the river. Marine Sciences laboratories were chosen to map the discharge plumes form these outflows over a 12-month period, and the information the scientists needed to collect was on temperature, salinity (reduced salinity because of increased fresh water could lead to damage to marine life), acidity, dissolved oxygen, nitrates, phosphates and chlorophyll levels. Scientists realized that a key requirement for the project would be a long term monitoring solution with the capacity for a high number of sensors as well as expansion capabilities in case the project needed more inputs. This device would also have to be able to withstand exposure to the often inclement weather conditions that could arise with little warning out on the bay.

The EPA research team installed a dataTaker DT85 Intelligent Universal Input Data Logger on their small boat alongside the onboard sensor array, and then connected the logger to a dataTaker CEM20 (Channel Expansion Module) to extend the DT85 by 20 universal data logging channels. As part of this specially equipped launch, the datalogger was installed to record the mass of information generated by the sensors and greatly simplified data collection during the project. The bay’s water was pumped continuously from about 5ft. (1.5 meters) below the surface and directed through the array of sensors measuring temperature, salinity, acidity, dissolved oxygen, nitrates, phosphates and chlorophyll. These cruises took place over a four-day period quarterly for the year.

The DT85 stand-alone, low power datalogger featured 16 to 48 universal analog sensor channels and 12 digital channels, 4 high-speed counter inputs, phase encoder inputs, and programmable serial sensor channels. These enabled connection to most sensors and data measurement sources so that almost any physical value could be scaled and logged including temperature, voltage, current, 4-20mA loops, resistance, strain gauges, frequency, and more. Additionally, the DT85 was renowned for its robust construction capable of withstanding the bay’s extreme environments to keep logging through years of use. Featuring a built-in display and a design emphasizing flexibility, accuracy and durability, the DT85 was able to connect to a large number of inputs simultaneously and offered the team advanced datalogging features and high-precision measurements. Measurements were made at an 18-bit resolution across a ±30 V input measurement range, and in case the project grew, the datalogger was expandable up to 900 analog inputs through adding more CEM20s. The data logger could store up to 10 million data points in user-defined memory and featured independent control of schedule size and mode so that the team could log only as long as they needed. The dataTaker DT85 also archived data on alarm event, copying to USB memory and transferring via FTP if needed, providing data directly to the EPA office over the internet or a mobile phone network without the need for polling or specific host software.

The DT85’s powerful communications capabilities included RS232 with modem support, USB, Ethernet and USB memory stick ports which enabled connection to the DT85 locally, remotely or over the Internet. The logger also featured support for multiple SDI-12 sensor networks, Modbus for SCADA systems, FTP and Web interface, and 12V regulated output to power sensors. The datalogger’s ability to record electric current and resistance as well as voltage was also an advantage.

User-friendly dEX software was included free with the DT85, utilizing an intuitive graphical interface enabling operators to quickly configure the datalogger and view real-time sensor measurements, calculations and diagnostic information, all in a hassle-free Windows Explorer style interface. The researchers could also view their real-time data in mimics, trend charts, or tables, and retrieve historical data for analysis. Aiding in jumpstarting the project, dEX came built-in with no applications to install, ran directly from a web browser, and could be accessed either locally or remotely anywhere that a TCP/IP connection was available including worldwide over the Internet. Users could view dEX using any of the logger’s built-in communications ports including Ethernet, USB and RS-232.

The EPA benefited in several major ways from installing the dataTaker DT85 and its CEM20 expansion module on the cruise ship, the most important of which was the datalogger’s ability to monitor all of the pollution and chemical levels recorded by the sensor array. Not only was the datalogger able to measure all the pollution levels singlehandedly, it was also easily expandable by simple connection with a maximum of 16 CEM20s to expand the inputs whenever needed. Additionally, the logger’s proven durability allowed it to operate reliably even in the unfavorable weather conditions on deck. The free dEX software included with the datalogger was easy for the researchers to use, and its ability to quickly configure the logger gave the bay project a quick start.

The EPA team’s findings were substantial; interim reports revealed that there had not been serious damage to marine life although there was plenty of evidence throughout the bay of the city’s outpourings. It was also found that some of the major flows into the bay occurred only intermittently, although influences of the river were found on every sampling. The research team’s findings aided in advancing future EPA efforts and safeguards to not only the public but to marine life as well.

Check out the DT85 product page here.

For further information on the dataTaker DT85 Intelligent Universal Input Data Loggers, other dataTaker dataloggers, or to find the ideal solution for your application-specific needs, contact a CAS Data Logger Applications Specialist at (800) 956-4437 or visit the website at www.DataLoggerInc.com.

Contact Information:
CAS DataLoggers, Inc.
12628 Chillicothe Road
Chesterland, Ohio 44026
(440) 729-2570
(800) 956-4437