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Putting together a wireless data system for the first time can be a bit of a challenge.  Call us for advice on system structure and the best stuff to buy to get optimum results.  T&D quality is unmatched, so you will not be disappointed with a system.  For durability, reliability and accuracy, these components are unmatched by any wireless logging system.

T&D Loggers and System Components

 


No sense in waiting any longer to tap into the benefits of a wireless system for your monitoring requirement.  T&D offers a clear advantage in the technology of wireless loggers, and Global Sensors can supply you immediately with a reliable and high-quality system configured using their excellent components.

T&D wireless capability ranges from standard air temperature monitoring, external probe monitoring (good for dry ice shipments and certain deep-frozen operations), external probe humidity monitoring, and just about any type of other sensor or measurement application. 

The advantages of wireless are pretty dramatic: get results instantly without touching the logger, remote reprogramming of logger settings, and data collection of multiple logger data sets in a handheld unit.  The days of standard data loggers for busy transit applications are numbered.

To get started, you need a Data Collector, at least one logger, and software.  Call us if you intend to set up an extensive system, or just order the hardware components you need to set up your own initial system.


T&D Loggers
T&D wireless loggers consist of four basic models: temperature with an internal sensor (RTR-51), temperature with an external sensor (RTR-52), humidity with an external sensor (RTR-53) and voltage model (RVR-52) which can be used with a voltage-producing sensor of the user's choice.

The RTR-51,52,53 and RVR-52 give you 15 recording intervals (1 second to 1 hour) to choose from. Each unit allows you two choices of recording method: One time method when 16,000 readings have been reached, it automatically overwrites oldest data.

One RTR-51 or RTR-52 unit can record up to 16,000 readings. If set at a one hour recording interval that gives you 666 days or almost two years of recording.

Using our specially designed low energy consumption circuit these units can run on one lithium battery for up to six months of continued use. In addition, by using our specially designed optional large capacity battery pack, the unit can used continuously for up to two and a half years. No need to worry about where you place it, as the battery will allow you to measure and record over long periods of time whether the unit is in transit or in a distant place.

RTR-51/51L Internal Sensor Logger
The RTR-51, with i
nternal sensor, can measure and record temperatures from
-40°F to 176°F (-40°C to 80°C). 

Use the RTR-51 for normal air temperature monitoring in transit applications, or for cold room. chiller or refrigerator monitoring where there is no interference with radio frequency communication with the data collector.

The unit is easily mountable and with a battery pack that is user-serviceable. The RTR-51 has options for a long life battery pack capable of extending recording to well over two years.

Specifications
Product Manual
Brochure
Add to Cart Inquire for Pricing
Includes lithium battery and instructions.

RTR-52/52L External Sensor Logger
The RT
R-52, with external sensor, is able to measure and record in a range of -76°F to 311°F (-60°C to 155°C).  Use the RTR-52 for extreme temperature monitoring (autoclave, cooking, steamer, dry-ice storage, smokehouse or other extreme condition.  Use the RTR-52 for applications where the sensor location is such that wireless communication is hindered by metallic walls (place unit outside the wall and sensor lead inside the walls.

The external sensor is at the end of a heat and cold resistant lead wire approximately 2 feet in length (0.6m).  The unit is easily mountable and with a battery pack that is user-serviceable. The RTR-51 has options for a long life battery pack capable of extending recording to well over two years.

Specifications
Product Manual
Brochure
Add to Cart Inquire for Pricing
Includes external probe, lithium battery and instructions.

RTR-53/53L External Humidity Probe Logger
RTR-53 is a combined temperature logger and humidity logger.  The remote probe allows the monitoring of confined spaces where there is no possibility for mounting of a logger unit.  Deployment of the humidity sensor on a removable probe lead is beneficial, as humidity probes have a limited service life, and users can keep a spare in stock when the sensor needs replacement or recalibration.

The external sensor is at the end of a heat and cold resistant lead wire 3 feet in length (3m).  The unit is easily mountable and with a battery pack that is user-serviceable. The RTR-51 has options for a long life battery pack capable of extending recording to well over two years.  Be sure to inquire about our humidity calibration programs.

Specifications
Product Manual
Brochure
Add to Cart Inquire for Pricing
Includes lithium battery, external probe and instructions.

RVR-52/52L Voltage Logger
RVR-52 measures and records input voltages from 0 to 6.5VDC.
You can choose to record the voltage measurement as the instantaneous value for each recording interval span or as the average value for each recording interval span. The average value for recording intervals under 15 seconds will be calculated as the average of the measurements from every 1 second. The average for intervals over 20 seconds will be calculated as the average of the measurements from every 2 seconds.

The data collection capability represents an important signal conditioning function that improves accuracy and data significance:

Using the "equal interval" timed method is the simplest approach, and is best for determination of trends in the data.
Using the "average value" method is the simplest approach, and is best for smoothing of data where noise input is significant.

RVR-52 can also be used with data producing devices that output in pulses (wind speed generators, for example) or can simply be used as an event marker (opening and closing of refrigerator doors, for example).  We can supply additional technical details, or just download the product sheet for technical information.

Specifications
Product Manual
Brochure
Add to Cart Inquire for Pricing
Includes AAA batteries, serial interface cable and instructions.

T & D Data Collector
The RTR-57C gives you a high quality graphic display of collected data. Each LCD screen plotted graph displays the data for one channel and can be easily scrolled across by using the handy operation dial or the buttons on the front of the main unit.

This function gives you the data you want in an easy-to-understand format--it eliminates the need for a PC for quick monitoring and reproduces the function of graphic paper recorders. The following illustration shows the graphical capabilities of the RTR-57C:


When there are two channels of data, you can switch channels by pushing in the operation dial for 1.5 seconds.

By making upper and lower limit settings on the RTR-57C you can check the recorded data as it is collected for irregularities and the results will be displayed. If an RTR-51,52,53 or RVR-52 unit has already been set with its own upper and lower limits, those values will take precedence over the values set in the RTR-57C.


 
The data capacity for the RTR-57C is 260,000 readings. That is a large enough capacity to collect data from 16 units of RTR-51,52,53 or RVR-52 at full capacity (16,000 readings). It can also collect and process up to 250 data recording sessions.
 
Besides controlling the collection of data, the RTR-57C can manage various recording settings such as: Recording Mode, Recording Interval, Programmed Recording Settings and Immediate Record. This enables the user to easily control various recording settings for a variety of models on-site without the need for a computer.

When battery life goes low, the RTR-57C backup function first displays a battery life warning and then goes into automatic sleep mode. Thereby, the main unit cannot be turned on and all data will be safely stored without loss.

The RTR-57C takes advantage of our exclusive circuitry design to bring over 100 operating hours worth of power on only 2 AAA alkaline batteries. Energy efficiency is further enhanced with our Auto Power Off Function that turns off the main unit when not in use. Note: Battery Life varies according to type of battery, measuring environment, transmission frequency, and ambient temperature. This estimate of battery life was based on normal use under normal conditions using a new battery. This is in no way or manner a guarantee of battery life.

The main unit's lightweight (125g) pocket-sized design increases mobility and decreases complications when collecting data. (Possible to connect a cellular phone strap for easy handling.)

Moreover, the ergonomic design permits day long usage without fatigue.

RTR-57C Product Manual
Brochure
Add to Cart Inquire for Pricing
Includes battery, serial interface cable and instructions.

T&D Software
T&D Recorder for Windows is a free software package for purchasers of matching T&D recorder products.

Upon opening T&D Recorder, the launcher will appear as a set of icons. By clicking on an icon, the graph and / or communication displays for that type of unit will appear.

For each icon, it is possible to change the settings to hide or show that icon, making it possible to hide unnecessary icons.

It is also possible to display the icons in the main window in a smaller reduced size.

When in reduced size, besides clicking on an icon to open a graph or a communication display for that type of unit, right clicking will open a menu. It is also possible to move the icons by dragging the launcher to a different place on the screen.

Download T&D Recorder Software [5.58 Mb]


How does the Data Collector work?
The T&D concept of data collection is simple: the Data Collector is a control panel that puts you in charge of all of the functions and data of a selected logger that has a wireless link established with the Data Collector.

The Data Collector has an LCD screen that can be used to select a logger for data acquisition, to plot and analyze data from a selected logger, and to store the data for future download.  Accessed loggers can be reprogrammed and made ready for new data collection episodes, or simply stopped and downloaded.

All of these activities are done a distance, so a supervisor can stay in one location and get important decision-making information while others perform their ordinary duties.


 
What is the best way to use loggers in a transit operation?

The most frequent function that is used in transit monitoring is temperature.  For delivery trucks, a single permanently installed RTR-51 can be used over two years without any need to touch the logger. 

For dry ice shipments (high value foods, epoxy resins, etc.) use the extended range capabilities of the RTR-52.

For shipments that are kept in humidity controlled environments, use the RTR-53.