The LCD Display
: Recording Status
ON: Recording in progress
OFF: Recording stopped
BLINKING: Waiting for programmed start
: Recording Mode
ON (One Time): Upon reaching logging capacity, recording automatically stops. (The measure-
ment and the [FULL] sign will alternately appear in the LCD.)
OFF (Endless): Upon reaching the logging capacity, the oldest data is overwritten and record-
ing continues.
Default Settings
Recording Interval: 10 minutes
Recording Mode: Endless
: Battery Warning Mark
When this appears, replace the battery as soon as possible. A low battery may cause communi-
cation errors.
* If the battery is left unchanged until the LCD display goes blank, all recorded data in the logger will be
lost.
: Sensor Type (TR45)
Pt: Pt100
PtK: Pt1000
KJTSR: Thermocouple Type
Default Setting: Thermocouple Type K
* Make sure to set your sensor type in the T&D Thermo App.
: Communication Status
Blinks while communicating with the application.
Messages
Sensor Error
Indicates that the sensor is not connected or the wire is bro-
ken. Recording is in progress and so is battery consumption.
* If nothing appears on display after reconnecting the sensor to the
device, there is a possibility that the sensor or the device has been
damaged.
Logging Capacity FULL
Indicates that the logging capacity (16,000 readings*) has
been reached in One Time mode, and recording has been
stopped.
* 8,000 temperature and humidity data sets for TR43A
Recording Intervals & Maximum Recording Times
Estimated Time until Logging Capacity (16,000 readings) is Reached
Rec Interval
1 sec.
30 sec.
1 min.
10 min.
60 min.
Time Period
About 4 hours
About 5 days
About 11 days
About 111 days
About 1 year and
10 months
* TR43A has a capacity of 8,000 data sets, so the period is half of that above.
Refer to the HELP for operational details.
T&D WebStorage Service
T&D WebStorage Service (hereinafter referred to as “WebStorage”) is a
free cloud storage service provided by T&D Corporation.
It can store up to 450 days of data depending on the recording interval
set for the device. Using in conjunction with the “T&D Graph” software
allows for downloading stored data from the WebStorage for analysis
on your computer.
A new WebStorage account can also be created through the
T&D Thermo App.
Refer to "T&D Thermo (Basic Operations)" in this document.
Package Contents
Before use, please confirm that all of the contents are included.
Data Logger
Lithium Battery
(LS14250)
Registration Code
Label
Strap
User’s Manual
(this document)
Safety
Instruction
Temperature
Sensor
(TR-5106)
TR42A only
Temp-Humidity
Sensor
(THB3001)
TR43A only
Cable Clamp
TR45 only
Introduction
The TR4A series enables data collection and management using dedicated mobile
device applications. By using our free cloud service, you can access collected data
using a web browser and analyze with the T&D Graph Windows application.
The following applications are supported:
T&D Thermo
Mobile app for device configuration, data collection and graphing, data up-
load to the cloud, and report creation.
TR4 Report
Specialized mobile app for report generation
Device Preparation
B
B
A
Recording will begin upon insertion
of the battery.
Default Settings
Recording Interval: 10 minutes
Recording Mode: Endless
Temp-Humidity Sensor
(Included)
Thermocouple Sensor
(Not Included)
Pt Sensor
(Not Included)
Temp Sensor
(Included)
Battery Installation
TR43A
TR45
TR45
TR42A
Sensor Connection
© Copyright T&D Corporation. All rights reserved. 2022. 05 16508310002 (1st Edition)
User's Manual
Bluetooth® Thermo Recorder
TR4A
series
Model No.
TR41A,TR42A,TR43A,TR45
Bluetooth
Cellular
WiFi
Internet
