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USER GUIDE

USBTemperatureDatalogger

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ModelTHD5

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Introduction

Thankyouforselectingthe‘single‐use’ExtechModelTHD5USBTemperatureDatalogger.This

dataloggerisspecificallydesignedformonitoringthetransportationofproductssubjecttocold

chainrequirements.



TheTHD5isaneasy‐to‐use,waterproof(IP65),andportableUSBTemperatureDatalogger.The

THD5usesaUSB2.0connectorthatcanbepluggedintoaPCforuser‐customizeddatalogger

setup.TheTHD5canthenbeplacedinanareawheretemperatureistobemonitored. Once

placed,theusercanpresstheSTARTbuttontobeginrecording.Whencompleted,theTHD5can

thenbepluggedbackintothePCwhereaPDFreportofloggedtemperaturereadingscanbe

generated(AdobeReader®softwarerequired).



Ten(10)one‐time‐usedataloggersareprovided;eachcanlog8192temperaturereadings.This

deviceisshippedfullytestedandcalibrated.

Summary of content (6 pages)

PAGE 1
USER GUIDE USB Temperature Datalogger Model THD5 Introduction Thank you for selecting the ‘single‐use’ Extech Model THD5 USB Temperature Datalogger. This datalogger is specifically designed for monitoring the transportation of products subject to cold chain requirements. The THD5 is an easy‐to‐use, waterproof (IP65), and portable USB Temperature Datalogger. The THD5 uses a USB 2.0 connector that can be plugged into a PC for user‐customized datalogger setup.
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Datalogger Description 1. USB 2.0 ‘Plug & Play’ connector. USB driver is not required. 2. LED indicator: Low/High: Red LED blinks when measurement exceeds an alarm threshold Green OK: Green LED blinks three times every 5 seconds when logger is in standby mode. When logging is started, the green LED blinks every 2 seconds Red Low Battery: Red LED blinks every 2 seconds when power is too low to provide accurate logging 3. NTC thermistor provides accurate temperature measurements 4.
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Datalogger Configuration Screen Description Connect the THD5 to the PC via the USB port to open this screen. Refer to the Operation Section below for details on the items shown on this Screen: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Language selection Logger sampling rate Logger start delay time Temperature unit selection Password mode selection User’s company name Confirm settings Select alarm type Set alarm delay time Select high and low alarm thresholds 11. Alarm range (for cumulative alarm type) 12.
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 Start delay Select a period of time that must elapse before recording can begin after the START button is pressed (select from 0 min to 2 hours).  Alarm delay The preset alarm delay time for single alarm type is always zero. The adjustable alarm delay time for cumulative alarm type is 5 minutes to 2 hours.  Alarm types Regardless of what alarm type is selected, the LED will continue flashing (once it is triggered) even when the measured value later returns to the normal range.
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Start Datalogging 1. 2. 3. 4. 5. When the THD5 is successfully programmed, the green LED blinks three times every 5 seconds to indicate the logger is in standby mode Place the unit into the supplied plastic bag and seal the zipped bag well; then press and hold the ‘START’ button for two seconds to start the datalogger The Red LEDs will flash three times to indicate that the datalogger is activate During the datalogging, the green LED will blink every two seconds.
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Specifications Temperature Sensor Temperate range Temperature resolution Temperature Accuracy Logger type Datalogger capacity Sampling interval Start delay Alarm ranges Alarm delay Alarm types Operation Buttons LED indicator Number of supplied Loggers Operating temperature Operating Relative Humidity Dimensions Weight Battery Battery life Safety NTC Thermistor o o ‐30~70 C (‐22~158 F) o o 0.1 C/ F o o ±0.5 C (0.