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TRH Data Loggers

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Copyright © 2010 ACR Systems Inc.  All Rights Reserved.

setup and make any necessary changes before starting the logging session.

Label
If you are working with more than one data logger, label each logger, identifying the task and
location before you distribute them throughout a building or system.  To do this, you can simply
use a shipping tag.  Later, when you retrieve them to graph their data, you will know what each
graph refers to.  There is a description field in the Setup that can be used for entering the tag
information.  Note that after editing and saving the Description you will need to click Contact to
update the new Description in TrendReader Explorer and in the Diagnostic Log.

Mounting
Use the magnetic backing to conveniently mount your logger on metal surfaces like ductwork
or electrical control cabinets.  If you are concerned about theft lock your logger to a permanent
fixture using the security loop or take advantage of its small size and hide it completely out of
view.  Because TRH-1000 loggers are so light, you can use special mounting fasteners like
Velcro® to attach them to almost any surface.  Make sure your logger's mounting method will
last the full length of your logging session.

Do not rely on the logger's magnetic strip for adhesion if the mounting surface is uneven,
unstable or above 65°C (150°F).

Cold or Humid Environments
Make sure that the environment you will be placing your logger into will be acceptable by
referring to the 

Specifications

 in this chapter.  If conditions are not adequate for the logger,

consider using a protective enclosure.  For humid conditions you can protect your logger
simply by placing it in a zip-lock plastic bag. Note that covering the logger may affect the
relative humidity readings.

When you place your TRH-1000 logger in a cold environment, make sure condensation will
not settle on the logger when you bring it back into warmer surroundings, such as an office. 
The best way of preventing moisture is to place the logger in a container and include a
desiccant (a material that absorbs moisture).  When you bring your logger back to your
computer, leave the logger in the container until it has had a chance to warm up to the
surrounding temperature.  You can then take it out and backup the data to be analyzed.

Keep Track
Make sure you keep a record of where you have placed each logger in a building or system
plan.  You will save time looking for them when your data gathering session is over.  Also,
keep track of when you placed the loggers in the area you are monitoring.  This will help when
producing graphs on your computer.  It may be helpful to label (shipping tag) each logger so
you can properly identify and differentiate it from other loggers.

Analysis
After sufficient time has passed for the logger to obtain a representative profile of data, it is
time to analyze the information.  If you are retrieving the logger from the field, bring it back
immediately to your computer for analysis.

In order to analyze your TRH-1000 logger's data, you must first transfer a backup copy of its
data to your computer.  To do this, see Backup in the TrendReader guide.  After transferring
your information to the computer, the data is automatically copied to disk and time and date

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Summary of Contents for ACR 01-0194

Page 1: ...Copyright 2010 ACR Systems Inc All Rights Reserved Reference Guide IMPORTANT TRH Data Loggers www com information itm com 1 800 561 8187...

Page 2: ...to these trademarks For more information regarding trademarks see the Trademark Notices section of this manual ACR Systems Inc assumes no responsibility for errors or omissions or for damages resulti...

Page 3: ...a charge for freight and Canadian Customs clearance if applicable Any replacement hardware or software will be warranted for the remainder of the original warranty period To the maximum extent permit...

Page 4: ...ifications 6 Product Approvals 7 2 TRH Software Driver 7 Logger Status 7 Logger Sampling 8 Logger Memory 10 Logger Channels 10 Channel Information 11 Channel Calibration 12 3 TRH 1000 Temperature Rela...

Page 5: ...TrendReader Standard conventions and procedures To get the most from your logger please take time to familiarize yourself with TrendReader Standard and its Reference Guide For important information on...

Page 6: ...a logger features make them a useful tool for data collection Pocket sized Solid state components no moving parts Low power microprocessor controlled circuitry 8 bit resolution readings High capacity...

Page 7: ...eadings to memory using one of two sampling methods 1 First in First out FIFO In this method the logger continues to take readings when its memory is full to make room it discards the oldest reading e...

Page 8: ...d running on your computer You can then configure your logger with various options by talking to it via the interface cable Set Sample Rate Always confirm the sample rate how often the logger saves re...

Page 9: ...r the logger consider using a protective enclosure For humid conditions you can protect your logger simply by placing it in a zip lock plastic bag Note that covering the logger may affect the relative...

Page 10: ...er channel Memory Usage 1 Continuous First in First out 2 Stop when full Fill then stop Sample Intervals User selectable rates from every 8 seconds to 34 minutes Sampling Mode 1 Average over sample in...

Page 11: ...idity in TrendReader software Specifications are subject to change without notice 1 1 7 Product Approvals Certified to CE standard EN61326 1977 A1 1998 European Emissions and Immunity covering ESD RFI...

Page 12: ...new logging session with the existing or new parameters select Edit Setup from TrendReader In the Edit Logger Setup window make any necessary changes To implement your changes you can either click on...

Page 13: ...is stored in memory and what the start and end times or capacity are for the data logging In the FIFO First In First Out mode the logger continually stores data and when the memory limit is reached th...

Page 14: ...the right This will pop up a form allowing you to set the date and time Highlight the date or time and enter the appropriate value You can also click on the drop down list arrow to bring up a calendar...

Page 15: ...ons or you can create your own custom equations See Equations in the TrendReader guide for further information To set the equation click on the Equation field and select the equation from the drop dow...

Page 16: ...ke the output more accurate To set each calibration value click on the appropriate calibration field and enter the value The factory equations for the TRH 1000 use the Low and Mid values as offset and...

Page 17: ...cables wires or accessories are required making the TRH 1000 the ideal data logger for quick and accurate temperature and humidity measurements in a variety of applications 1 3 2 Setup Once the logger...

Page 18: ...may vary dramatically from location to location Such factors as air stratification drafts and proximity to heat or humidity sources people equipment moisture solar gain etc can contribute to a wide v...

Page 19: ...fifteen readings and stores that average in its memory Otherwise if the sampling mode is set to Spot the logger still takes readings every 8 seconds but only stores the reading taken at the selected...

Page 20: ...ght 2010 ACR Systems Inc All Rights Reserved 32 sec 0 12 2 8 0 56 sec 0 21 3 44 0 2 min 0 45 8 0 0 4 min 56 sec 0 111 19 44 0 10 min 0 226 16 0 0 20 min 1 87 36 0 0 30 min 1 315 0 0 0 www com informat...

Page 21: ...Calibration 11 Channel Information 10 Channels 10 Description 1 Features 1 How to Use 3 Memory 8 Operation 2 Readings 2 Sampling 7 Setup 7 Software 7 Specifications 5 Status 7 Unknown Equation 10 TRH...

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