TANDD TR-76UI CO2 Recorder User Guide

: June 5, 2024
: TANDD

Table of Contents

TANDD TR-76UI CO2 Recorder
Package Contents
Part Names and LCD Display
Button Operations
Messages and Display on the LCD
When [—–] appears in the following:
Setting up the TR-76Ui
Interpreting the Battery Mark
Notes on Special Functions
Using the Software
Specifications
Options
Documents / Resources

TANDD TR-76UI CO2 Recorder

Package Contents

TR-76Ui

CO2 Recorder TR-76Ui
Temperature and Humidity Sensor (THA-3001)
AC Adaptor (AD-06A1 or AD-06C1)
USB Communication Cable (US-15C)
Software CD-ROM
AA Alkaline battery x 4
Getting Started Guide (Warranty Included)
Please Read First

TR-76Ui-S

CO2 Recorder TR-76Ui
High Precision temperature-humidity Sensor (SHA-3151)
AC Adaptor (AD-06A1 or AD-06C1)
USB Communication Cable (US-15C)
Software CD-ROM
AA Alkaline battery x 4
Getting Started Guide (Warranty Included)
Please Read First

Part Names and LCD Display

TANDD-TR-76UI-
CO2-Recorder-3

CO2 Sensor Area (Internal)
LCD Display
Infrared Communication Port
Operation Buttons
Battery Cover
Temperature and Humidity Sensor Jack
AC Adaptor Jack
USB Communication Cable Jack
Serial Communication Cable Jack (RS-232C)
External Alarm Terminal (EXT ALM)
switch

[REC] Mark

Shows recording status
ON: Recording in progress
BLINKING: Waiting for programmed start
OFF: Recording stopped

Data Scale

At the beginning of every 2,000 readings the scale will be marked from left to right. Logging capacity is 8,000 readings.

[COM] Mark

Shows communication status but not displayed normally.
ON: The unit is connected to a PC with a USB cable.
RAPID BLINKING: The unit is in communication with the computer via USB or infrared communication.

Recording Mode

Recording mode settings can be made by using the supplied software.
Upon reaching the logging capacity of 8,000 readings, the oldest data will be overwritten and recording will continue.
Upon reaching the logging capacity of 8,000 readings, recording will automatically stop and in the LCD the current measurement and the word “FULL” will alternately appear.

Battery Mark

Shows source of power and voltage level
ON: Running on the external power source
BLINKING: Running on battery power
OFF: No battery

Current Temperature and Humidity Readings Area

Shows the current readings for temperature ( °C or °F) and humidity (%RH). Pressing the button will change the measurement item to be displayed. By using the supplied software, the unit of temperature can be changed. is also used to display messages.

Current CO2 Readings Area

Shows the current readings for CO2 concentration (ppm). is also used to display messages.

Button Operations

Upon the start of recording, all previously recorded data in the TR-76Ui will be deleted. If “Button Lock” has been set to ON in the CO2 Recorder for Windows, the operational buttons will not be active.

< REC/STOP> Button: Starting and Stopping Recording

Starting Recording
Press the button for about two seconds until the [REC] mark appears on the display. It is possible to start recording even while waiting for a programmed recording to start.

Stopping Recording
Press the button for about two seconds until the [REC] mark disappears from the display.

< DISPLAY> Button: Changing the LCD Display Pattern
It is possible to change the current readings display for temperature and humidity (upper row). CO2 concentration (lower row) is always displayed.

With each pressing of the button the item on the display will change.
When the desired display pattern appears, stop pressing the button.

< INTERVAL> Button: Checking Recording Interval
It is possible to check the recording interval during recording or while waiting for a programmed recording to start.

By pressing the button for about two seconds, the currently set recording interval will appear on the LCD display.
If no operation is carried out after the recording interval has been displayed, the current measurement readings will return to the LCD display.

Button: Changing the Recording Interval Setting
Recording interval settings cannot be changed while a recording session is in progress.

Stop recording.
Press the button for about two seconds to display the currently set recording interval on the LCD screen.
With each pressing of the button the recording interval time will change; stop pressing the button when the desired interval appears.
Restart the recording session.

Messages and Display on the LCD

Settings Messages

Button Lock

When “Button Lock” has been set to ON in CO2 Recorder for Windows, operational buttons are not active.

Memory Full

When recording mode has been set to “One Time” and the unit reaches its logging capacity of 8,000 readings, the measurement and the message [FULL] will alternately appear in the LCD.
Stop recording and download the recorded data before re-starting the recording.

When [—–] appears in the following:

Temperature and Humidity Display Area
This appears when the temperature-humidity sensor is not connected to the TR-76Ui, the connection is loose, the wire is broken, or when power has just been turned ON. If after re-connecting the sensor, measurements can still not be displayed, it is very possible that the sensor or the logger is defective or has been damaged.

CO2 Concentration Display Area
This appears when power has just been turned ON. If measurements don’t appear in the display after waiting for a considerable time, there is a possibility that the sensor is defective or has been
damaged. Also, the CO2 sensor will not work if battery power is low.

Setting up the TR-76Ui

Connect the Temperature and Humidity Sensor

Turn On the Power

AC Adaptor
When measuring and recording over long periods of time, please use a supplied AC adaptor.
Four AA Alkaline Batteries
Keeping batteries in the unit allows a backup source of power * for when and if electrical power is cut from the AC adaptor. If running on only batteries, the estimated battery life is about two days.

Leaving alkaline batteries in the unit for a long period of time may cause battery leakage and corrosion. When using as a backup source, we recommend that you change the batteries every few years.

Turn On the Switch
After setting up the power supply, turn on the Switch. TANDD-TR-76UI-
CO2-Recorder-14

Warm-up Time for CO2 Sensor
After switching on the unit, it will take about one minute to display the normal CO2 concentration.

Install the Batteries
If battery power is lost, all recorded data stored in the unit will be erased. Do not leave the unit without batteries.

Remove the battery cover from the back of the unit.
While pressing down on the triangular mark, slide the cover to the bottom of the unit.
Lift off the cover.
Insert the batteries.
- Make sure to use four new batteries of the same kind.
- Make sure not to mistake + / -.
- Do not insert or change batteries with wet hands.
- Be sure to completely close the cover.

Interpreting the Battery Mark

Checking the Power Supply Condition
Whether the battery mark is “blinking” or “on” indicates the source of power.

BLINKING (Running on battery):
The battery mark will blink on the LCD display when measuring and recording by battery power. TANDD-TR-76UI-CO2-Recorder-17

ON (Running on external power):
The battery mark will be on when measuring and recording by AC adaptor power.

Checking the Battery Level
The battery level will be shown in three stages as below.

Battery Power – OK
Battery Power – Getting Low Please change the batteries as soon as possible.
Battery Power – Too Low Battery power is too low to carry out measurement and recording of CO2 concentration. When running onA batteries only, it will take about 24 hours to go from Stage to and another 24 hours from Stage to.
Sleep Mode (stopping measurement and recording) After Stage , if the battery is not changed but it remains in use, the unit will enter sleep mode and stop measurement and recording in order to protect recorded data until this point.
- To continue recording, it is necessary to change the batteries before the unit enters sleep mode.
- If the unit is already in sleep mode, download the recorded data into the PC before re-starting the recording.
Erasing recorded data If the battery is further left unchanged, the display will automatically shut off and all previously recorded data will be lost.
- Recording settings will remain. (See STEP 4 in the backside of this page for details.)

Removing the Batteries during Recording

If the batteries are removed when running on battery power only, the unit will start a sixty-second countdown.
To continue recording, before the countdown comes to an end, insert new batteries or connect the AC adaptor to supply power.
If power is not supplied within 60 seconds, the unit will enter sleep mode.

Turning Off the Switch
During recording or when the “Button Lock” is set to ON in the CO2 Recorder for Windows, the power cannot be turned off even by pressing the Switch.

1. Stop recording.
2. Turn off the Switch.

Standby Power
If the TR-76Ui is connected to an AC adaptor, standby power will be supplied even after turning off the switch, allowing the CO2 sensor to continue operation.

Notes on Special Functions

Getting Ready for Using Infrared Communication
In order to download recorded data from the TR-76Ui via infrared communication, it is necessary to purchase the dedicated Data Collector TR- 57DCi (sold separately).

Getting Ready for Using the Warning Monitoring Function
It is possible to connect an external device such as siren or lamp to the TR-76Ui. Please make sure to check specification details of the external alarm terminal before purchasing or getting an external device ready for connection.

Upper and Lower Limit Settings
To use the warning monitoring function, go to the [Start Recording] tab in the CO2 Recorder for Windows and make settings for Upper and Lower Limits and Judgement Time. When the measurement exceeds one of the set upper and lower limits, the TR-76Ui will turn ON the external alarm terminal. Upon a warning, the measurement value on the display will also flash.

Using the Software

Install the Software
For installation of the supplied software, it is necessary to have Administrator (Computer Administrator) rights.

Start Windows and place the CD-ROM into your CD or DVD drive.
In a few seconds, the [Install Program] window will appear.
- If the [Auto Play] window appears, click on [Run start.exe].
- If the [Install Program] window does not automatically open, please open it by double clicking on the [start.exe] icon in your CD or DVD drive.
Select “Install CO2 Recorder for Windows” and click the [Execute] button to start the installation. Follow the directions to install.
If a window appears such as the one below during installation, click the [Install] button.
After installation, “CO2 Recorder for Windows” will appear in the Windows Start Screen or Start Menu.

Connect the TR-76Ui to a PC

Connect the device with the supplied USB cable to your computer. The USB driver installation will start automatically.
Open CO2 Recorder for Windows and confirm that the TR-76Ui icon appears in the main window.

Make Atmospheric Pressure Correction Settings
Measurement results of CO2 concentration are affected by atmospheric pressure. When high measurement accuracy is required, we recommend that Atmospheric Pressure Correction be carried out before a recording session is started.

Connect a TR-76Ui to your PC and open CO2 Recorder for Windows.
From the [Settings] Menu, select [Atmospheric Pressure Correction] to open the settings window.
Click the [Send Settings] button to transmit the settings to the TR-76Ui.

Make Settings and Start Recording

Connect a TR-76Ui to your PC and open CO2 Recorder for Windows.
Make recording settings in the [Start Recording] tab window.
Click the [Start Recording] button to transmit the settings to the TR-76Ui.
Disconnect the TR-76Ui from the PC and place in the desired measurement location.

Download Recorded Data to a PC

Connect a TR-76Ui to your PC and open CO2 Recorder for Windows.
In the [Download Recorded Data] tab window, click the [Download] button.
When a completion message appears after downloading, click the [OK] button to view the graph for that data.

View and Print Graphs

Open T&D Graph.
From the [File] menu, click [Open].
Select the desired file, and click the [Open] button to view the graph for that data.

Printing the Graph

While the graph is open, make any desired adjustments to the graph enlargement, position and aspect ratio to be reflected in the printed graph.
- Graphs will be printed using the resolution and aspect ratio settings made for the Graph Display Area in Step 1 above. If you wish to change the resolution and/or aspect ratio, go back to Step 1 and make further adjustments based on the preview image.
From the [File] menu, click [Print Graph].
By selecting the options on the toolbar in the Print Preview window, you can adjust the paper orientation, margin, items to be printed, etc.
The graph title, items to be printed, and margin can be set in [Page Setup].
Click the [Print] button.

Opening Data using Spreadsheet Software
It is possible to convert recorded data to a text file (CSV format) which can be read by common spreadsheet software.

While the graph is open, click [Save in CSV Format] in the [File] menu.
Specify the storage location, file name, and file type, then click the [Save] button.

Specifications

| TR-76Ui| TR-76Ui-S
---|---|---
Temperature-Humidity Sensor (External)
Sensor| THA – 3001 | __SHA-3151(High-Precision Type)
Thermistor| Polymer Resistance| Thermistor| Polymer Resistance
Measurement Channels| Temperature 1ch| Humidity 1ch| Temperature 1ch| Humidity 1ch
Units of Measurement| °C, °F| %RH| °C, °F| %RH
Measurement Range (1)| 0 to 55 °C| 10 to 95 %RH| -25 to 70 °C| 0 to 99 %RH (2)

Accuracy

|

±0.5 °C

|

±5 %RH

at 25 °C, 50 %RH

| ±0.3°C

at 10 to 40 °C

±0.5°C

all other temperatures

|

±2.5 %RH

at 15 to 35 °C, 30 to 80

%RH

Measurement Resolution| 0.1 °C| 1 %RH| 0.1 °C| 0.1 %RH
Responsiveness| Response Time (90%): Approx. 7 min.| Response Time (90%): Approx. 7 min.
CO2 Sensor (Internal)

Minimum of 1 ppm

Responsiveness| Response Time (90%): Approx. 1 min.
Unit Specifications
Logging Capacity| 8,000 data sets (One data set consists of readings for all channels in that type of unit.)
Recording Interval| Select from 15 choices: 1, 2, 5, 10, 15, 20, 30 sec. or 1, 2, 5, 10, 15, 20, 30, 60 min.
Recording Mode| Endless (Overwrite oldest data when capacity is full) or One Time (Stop recording when capacity is full)

Communication Interfaces

| USB Communication

Infrared Communication: IrPHY 1.2 low power (4) Serial Communication: RS-232C (5)

External Alarm Terminal (*6)| Output Terminal: Open Drain Output (Voltage when OFF: DC less than 30V / Current when ON: less than

0.1A / Resistance when ON: about 15Ω)

Power| AC Adaptor (AD-06A1 or AD-06C1), AA Alkaline LR6 Battery x 4
Battery Life| Approx. 2 days ( batteries only without AC adaptor ) (*7)
Dimensions| H 96 mm × W 66 mm × D 46 mm ( excluding protrusions and sensor )
Weight| Approx. 120 g
Operating Environment| Temperature: 0 to 45 °C, Humidity: 90 %RH or less ( no condensation )
Initial Settings| Recording Mode: Endless, Recording Interval: 10 min.
CO2 Recorder for Windows

Compatible OS (*8)

| Microsoft Windows 10 32/64 bit Microsoft Windows 8 32/64 bit Microsoft Windows 7 32/64 bit
Display Languages (*9)| English

Make sure to use the data logger within the operating environment as listed in the specifications.
When continually used in environments with temperatures above 60°C, accuracy of humidity measurements will decrease over time. Also, humidity cannot be measured at temperatures below -20°C.
Stated value is the measurement accuracy of the CO2 sensor when Auto Calibration is operating properly. A change in atmospheric pressure directly influences the reading of CO2, which can cause measurement errors; a decrease in pressure by 10 hPa results in a relative decrease in CO2 by 1.6%. In such a case, we recommend carrying out the “Atmospheric Pressure Correction” function found in CO2 Recorder for Windows.
If you wish to use infrared communication to download recorded data, it is necessary to purchase the Data Collector TR-57DCi (sold separately).
Customers wishing to write their own software, please contact your local distributor for the serial communications protocol specifications. (Note: Optional serial communication cable TR-07C is also required.)
In order to use the external alarm terminal, please prepare a compatible connector: JST PAP-04V-S.
Battery life varies depending upon the ambient temperature in which it is used, the recording interval, the frequency of communication, and the battery performance. All estimates are based on operations carried out with a new battery and are in no way a guarantee of actual battery life. Battery life may be shortened if the unit is used under inverter type fluorescent lighting.
For installation, it is necessary to have Administrator (Computer Administrator) rights.
We recommend using an operating system in the same language as the display language. Operation in different languages is not guaranteed.
The specifications listed above are subject to change without notice.

Cautions about using the temperature-humidity Sensors

If extremely severe temperature changes occur, the humidity measurements may appear abnormal. Once the sensor’s temperature becomes stable, the measurements will return to normal.
Do not connect the sensor to any data logger other than those specified by T&D Corporation.
Do not expose the sensor to a strong impact. This may adversely affect measurement accuracy and cause damage or malfunction.
When the sensor is not to be used for a long period of time, please store it at normal temperature and humidity.
Do not allow the sensor to become wet. If the sensor gets wet, immediately remove it from the unit.
Do not use the sensor on the human body.
Do not expose to condensation, dampness, corrosive gases, or organic solvents.
Continued use may cause a decrease in the sensor’s accuracy and sensitivity even under normal operational conditions. If the sensor is being used in a bad environment (smoky or dusty places) it may be necessary to change the sensor sooner.
The SHA-3151 is not water resistant. If the sensor gets wet, immediately remove the sensor from the unit and wipe it with a clean cloth as soon as possible. Then allow the sensor to dry in normal room temperature before using it again.
When using the THA-3001/3151 in an environment where the humidity is under 30%RH, the measurements may sometimes fluctuate. This is not abnormal.