Factory-Calibrated Temperature and Relative Humidity Sensors Pair with Surecross Wireless Network

Description

Minneapolis, MN—August 7, 2008—Banner Engineering Corp. introduces the SureCross™ Temperature and Humidity Sensor, robust instrumentation optimized for use with the company’s SureCross Wireless Network.

The SureCross Temperature and Humidity Sensor is factory-calibrated to determine relative humidity to ±2% or ±3.5% (depending on model) and delivers temperature accuracy to ±0.3° C for simple critical data monitoring. Manufactured with a rugged metal housing and IP67 electronics, it provides maintenance-free operation in a wide variety of environmental monitoring applications.

Banner designed a proprietary serial sensor interface that enables the Temperature and Humidity Sensor and the wireless Node to operate on a Flex Power™ battery supply for up to 20 years. Fixed and remote-mount Node and sensor models enable a wide range of installation scenarios, including in-duct and freestanding applications. For remotely mounted sensors, cables in lengths up to 3 meters are available. A hydrophobic membrane filter for general applications and a sintered stainless steel filter for hostile drying areas are available to meet the requirements of the most demanding environments.

The sensor can be paired with a Node that includes an integral battery supply or an external power source including battery, solar or 10-30V dc. With an external power supply, two Temperature and Humidity sensors can be used with a single wireless Node. Each Node is equipped with an LCD and data is displayed in degrees C or F and relative humidity is in a percentage from 0-100%. The Node can be installed as a stand-alone device, or it can work in conjunction with a Gateway, the wireless network controller. The SureCross Wireless Network provides a robust, reliable wireless solution with bidirectional fully acknowledged data transmission. This network employs Frequency Hopping Spread Spectrum (FHSS) and Time Division Multiple Access to ensure the most reliable data delivery possible. The Gateway supports multiple communication outputs and seamlessly integrates with existing wired control systems.

If radio frequency links are lost, all relevant outputs can be set to user-defined conditions until the links are reestablished. This deterministic wireless capability makes the products simple to install and more cost-effective than conduit, delivering a reliable, long-lasting solution.

“Monitoring the optimal temperature and humidity in controlled storage areas is crucial to ensuring optimum product quality—and if this environment is not sufficiently maintained, the stored products can quickly become compromised,” said Chris Dales, Senior Application Engineer, Banner Wireless Division. “The Temperature and Humidity Sensor delivers highly accurate results that are simply transmitted using the communications-integrity-ensured SureCross Wireless Network, and users can select the power method that works best for their individual applications.” Dales adds, “With this arrangement, if temperature or humidity exceed acceptable limits, a remotely located Gateway can issue an alarm to management personnel, minimizing the risk of product damage or loss.”

Applications
The SureCross Wireless Network equipped with the serial sensor interface and factory-calibrated Temperature and Humidity Sensors deliver dependable monitoring in a broad range of environments, including:

  • Large-scale refrigeration and cold chain storage systems
  • Greenhouses
  • Warehouse areas
  • Pharmaceutical
  • HVAC
  • Textiles
  • Energy management
  • IT resources and data centers

In addition, several unique features of the SureCross Temperature and Humidity Sensor and Wireless Network make them particularly effective and easy to use:

  • Provides relative humidity measurement with ±2% or ±3.5% accuracy (model specific)
  • Delivers temperature accuracy of ± 0.3° C and resolution of 0.1° C
  • Features a proprietary serial sensor interface optimized for use with Flex Power
  • Offers multiple filter options to meet a wide range of environmental requirements
  • Ensures signal transmission reliability by pairing FHSS technology and TDMA architecture with bidirectional communications
  • Offers alarm capabilities through a remote SureCross Gateway to inform management personnel when temperature or humidity has exceeded acceptable levels
  • Provides time-efficient installation and cost-effective, convenient operation relative to any wired solution

About Banner
Banner Engineering is the world’s leading manufacturer of wireless networks, photoelectric and ultrasonic sensors, vision sensors, electronic machine guarding systems, fiber optic assemblies and precision measurement systems.

Specs

• GeneralPower:3.6 to 5.5V dc low power option Default sensing current:180 µA Disabled sensing current:40 µA Active comms current:3.3 mA Mounting threads:M12 x 1 Indicators:Green flashing: Power ON • PerformanceHumidity Measuring Range:0 to 100% relative humidity Humidity Resolution:0.1% relative humidity Humidity Accuracy M12FTH1Q:±2% relative humidity at 23º C Humidity Accuracy M12FTH2Q:±3.5% relative humidity at 23º C Temperature Measuring Range:−40 to +85º C Temperature Resolution:0.1º C Temperature Accuracy:±0.3º C between 0 and 40º C • InputsDiscrete Inputs:One Sinking Discrete Input Rating:3 mA max current at 30V dc Discrete Input ON Condition:Less than 0.7V Discrete Input OFF Condition:Greater than 2V or Open OutputsDiscrete Outputs:One NMOS Sinking Discrete Output Rating:Less than 10 mA max current at 30V, ON-S • Saturation: Less than 0.7V at 20 mA Discrete Output ON Condition:Less than 0.7V Discrete Output OFF Condition:Open CommunicationsInterface:Single wire serial interface Baud Rates:9.6k, 19.2k (default), or 38.4k Data Format:8 data bits; No parity (default), even parity, or odd parity; 1 stop bit Protocol:SureCross DX80 Sensor Node Serial Interface Communications Line Level Receive ON:Greater than 2V Communications Line Level Receive OFF:Less than 0.7V Communications Line Level Transmit ON:2.7 to 3V Communications Line Level Transmit OFF:0V (pulldown resistor of 10 kOhm) • EnvironmentalEnvironmental Rating:IEC IP67; NEMA 6 (Electronics) Operating Temperature:−40 to +85° C (Electronics) Shock and Vibration:IEC 68-2-6 and IEC 68-2-7 Shock:30g, 11 millisecond half sine wave, 18 shocks Vibration:0.5 mm p-p, 10 to 60 Hz
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