Temperature and Humidity Data Logger

The battery powered data logger has internal memory, or can

network with an external device.

Image courtesy Vaisala

Monitoring and maintaining records of process or storage space conditions can be an integral part of a quality assurance program or compliance with regulatory requirements. For temperature and humidity, the DL 2000 data logger from Vaisala provides a simple and effective total solution for monitoring and data logging.

The compact device operates on an internal battery with a 10 year life. Temperature and relative humidity sensors are on board, and a spare input channel allows connection of an additional analog sensor for a third measured parameter. A Boolean input allows another connection that can be used for a switch input to record an event.

When used with Vaisala software, data can be downloaded, displayed and analyzed. Multi-stage alarms can be implemented, and validation and mapping tasks completed. Customizable reports can be produced and exported to spreadsheets.

More technical data is provided in the datasheet included below. Share your data acquisition challenges with process measurement experts and leverage your own knowledge and experience with their product application expertise.

Temperature and Relative Humidity Data Logger from Alliance Technical Sales, Inc.

Temperature and Humidity Transmitters for Industrial Applications

Vaisala enjoys global recognition as a premiere provider of best-in-class humidity and temperature transmitters for industrial process measurement. The video provided here gives an excellent overview of the company's HMT 330 Series with all of its variants for special applications.

Share your temperature and humidity measurement challenges with product specialists, combining your process knowledge with their product application expertise to develop effective solutions.

Humidity and Temperature Transmitters for Demanding Humidity Measurement

HMT330 Series Humidity and Temperature Transmitters
Courtesy Vaisala

Humidity, the amount of water vapor in the atmosphere or a gas, can be an important measurable attribute of an industrial process. Many are aware of the measurement of relative humidity in HVAC applications and its impact on human comfort in occupied spaces, but the measurement of water vapor in air can be a required measuring point in many other processes that pose far greater challenge.

In addition to common wall or duct mounting applications, where the instrument is easily inserted or placed into the environment to be measured, there are applications that call for special adaptations to the instrument or sensing probe.

• High pressure
• Vacuum
• High temperature
• High humidity
• Pressurized pipelines
• Presence of chemical contaminants

Meeting the full range of industrial process control operations requires stable measurements and the choice of multiple configurations and options to customize the instrument to the process demands. Here are some features worth considering.

• Multiple variants to match the basic process requirement
• Full 0 to 100% humidity measurement range up to +180°C (+356°F)
• PT 100 RTD for accurate temperature measurement
• Pressure tolerance up to 100 bar
• Superior sensor accuracy and stability
• Graphic display and keypad for local operation
• Multilingual user interface
• Good chemical tolerance
• Corrosion resistant housing
• Delivered with multi-point NIST traceable calibration certificate
• Analog outputs, RS232/485, WLAN/LAN
• MODBUS protocol support (RTU/TCP)
• Long term manufacturer warranty

While not all processes may require, or benefit from, the inclusion of all the listed features and capabilities, reviewing what is available and considering which features may provide better operability in your process can be beneficial. I have included a data sheet below that illustrates the HMT330 Series of humidity and temperature transmitters from Vaisala. Share your humidity measurement challenges with a product specialist. Combining your process knowledge with their product application expertise will produce solid solutions.

Vaisala HMT330 Series IndustrialTemperature and Humidity Transmitters from Alliance Technical Sales, Inc.