background image

TRH Data Loggers

10

Copyright © 2010 ACR Systems Inc.  All Rights Reserved.

1.2.2

Logger Channels

The Channels section provides information specific to each channel.  Both channels on a
logger are always enabled, they are active and continually record readings and store them in
the logger's memory.  The Channel subsections are 

Channel Information

 and 

Channel

Calibration

.

1.2.2.1

Channel Information

When you contact the logger, the logger status is displayed.  The Channel line gives the
description and the Realtime value, if Realtime is turned on.  The Description field is editable. 
The Realtime value is based on the equation that you select for the channel.  The equation is
selected in the Setup window but is not shown in the Status window.    

The logger collects and stores raw data readings.  An equation is used to transform the raw
data into measurement units, such as °C, with the current reading shown as a Realtime value.
You can use built-in equations 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-down list.  To help you select the proper equation,
the Realtime value using the currently selected equation is shown. *

Some channels compensate their output by using the value of another channel.  For example,
the calculated value for an RH channel depends on the reading of the RH sensor and the
value of the temperature channel.  In such cases, the compensation channel must output in
the correct units.  In the case of RH, for example, the temperature channel must output in
units of temperature.  Using units of byte counts will give invalid results.

* Note that if a custom equation is not available when Edit Setup... is selected (e.g.: deleted)
then the equation will be shown as unknown.  If a new equation is not selected the Realtime
value will not display correctly.  If the logger is backed up the channel will be disabled then
changes to the equation can be made in the graph using the Lines Tab in Graph Settings.

www.

GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

Summary of Contents for 01-0194

Page 1: ...Copyright 2010 ACR Systems Inc All Rights Reserved Reference Guide IMPORTANT TRH Data Loggers www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 2: ...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 resulting from the use of i...

Page 3: ...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 permitted by applicable law...

Page 4: ...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 Relative Humidity Logger...

Page 5: ...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 how TRH 1000 data lo...

Page 6: ...e 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 lithium battery Quart...

Page 7: ...ing 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 every time it adds a...

Page 8: ...puter 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 readings to make sure i...

Page 9: ...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 Wh...

Page 10: ...ge 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 interval except for 8 s...

Page 11: ...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 EFT B Surge Conducte...

Page 12: ...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 Apply or OK OK will...

Page 13: ...nd 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 the new readings start...

Page 14: ...op 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 You can set the logg...

Page 15: ...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 down list To help you se...

Page 16: ...ccurate 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 span High and Ext a...

Page 17: ...sories 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 is connected to your...

Page 18: ...ly 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 variance in condition...

Page 19: ...d 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 interval 1 4 2 Sampl...

Page 20: ...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 GlobalTestSupply com Find Quality...

Page 21: ...el 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 1000 12 Approvals 6...

Reviews: