TRH200 USB Temperature and Humidity Sensor
Specifications
- Model: TRH200
- Part Numbers: USB-TRH200 (601032), USB-TRH200-CAL (608032),
VCP-TRH200 (603032), VCP-TRH200-CAL (605032) - Product Description: USB temperature and humidity sensor with
an exposed end - HS Code: 9025.19.80.80
Product Usage Instructions
Safety Guidelines
WARNING: Electromagnetic interference (EMI) may
decrease the sensor’s accuracy. Avoid using this device near EMI
sources such as motors, high-voltage transformers, and fluorescent
tubes.
WARNING: This product should not be used in
applications where its failure may cause personal injury.
Installation and Setup
TIP: Powering the unit at least 15 minutes
before using it is advised for precision measurement.
- Download the DracalView software from https://www.dracal.com/en/software/
- Follow the installer’s instructions. The setup process should
take less than a minute. - Insert the unit into a free USB port.
Usage Guidelines and Applications
We recommend launching DracalView to check if the instrument is
connected correctly and works as expected. Follow these steps:
- Connect the instrument.
- Launch DracalView.
- Verify the instrument appears in the Sources tab.
- Modify units and decimals in the Configuration tab
(Optional). - Customize the names of channels to record in the Sources
tab.
FAQ
Q: What should I do if the sensor’s accuracy is affected by
electromagnetic interference?
A: To maintain accuracy, ensure the sensor is not placed near
EMI sources like motors, high-voltage transformers, or fluorescent
tubes.
Q: Can I recalibrate the USB temperature and humidity
sensor?
A: Yes, refer to the “Care, Storage, and Recalibration” section
in the user manual for instructions on recalibration.
User Manual
TRH200
USB Temperature and Humidity Sensor With an Exposed End
Model name
Part number Description
USB-TRH200
601032
USB-TRH200-CAL 608032
USB temperature and humidity sensor with an exposed end
USB temperature and humidity sensor with an exposed end calibratable
VCP-TRH200
603032
VCP-TRH200-CAL 605032
USB temperature and humidity sensor with an exposed end with VCP mode
USB temperature and humidity sensor with an exposed end calibratable with VCP mode
HS code: 9025.19.80.80
Table of Contents
3 Compliance Certification 4 Overview 5 Product Overview and Specifications 6 Safety Guidelines 6 Installation and Setup 6 Usage Guidelines and Applications 9 Care, Storage, and Recalibration 9 Troubleshooting Guide and Support 10 Return Process and Warranty Information 10 Accessories and Peripherals 10 Disassembly and Environmental Considerations 11 Document Revision History
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Compliance Certification
EU Declaration of Conformity
This declaration of conformity is issued under the sole responsibility of the manufacturer:
Dracal Technologies Inc. A204 – 7900 Taschereau Blvd Brossard (Quebec) J4X 1C2 Canada
for the following product(s): Model: TRH200 Type of Equipment: USB sensor CE Marking: Yes
Compliance with Directives
RoHS3 Directive (2011/65/EU, 2015/863) The USB Sensor Model TRH200 complies with the requirements of the RoHS Directive, restricting the use of hazardous substances in electrical and electronic equipment.
EMC Directive (2014/30/EU) The USB Sensor Model TRH200 complies with the essential requirements of the EMC Directive for electromagnetic compatibility.
Technical Documentation
Dracal Technologies holds the technical documentation required by the relevant directives at the following address: compliance@dracal.com.
It is available upon request to the relevant authorities.
Signed for and on behalf of: Dracal Technologies Inc., January 2024
Ariane Garon President Dracal Technologies Inc.
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Overview
At Dracal Technologies, we want to democratize access to precision data to engineers and scientists to ease their lives so they achieve their goals more quickly. We believe that precision data should not be compromised by ease of use. Dracal’s measuring instruments connect through a USB port. Units with the VCP option allow users to integrate sensor data without using a 3rd party software. The USB units are compatible with DracalView, the graphical software, and command-ine interfaces. The calibratable units are equipped with a 3-point user-calibration mechanism that allows the handler to align multiple instruments together precisely or to adjust the accuracy of an instrument with a more precise reference. The TRH Series of instruments was designed for anyone interested in temperature and relative humidity (dew point). The TRH200: USB temperature and humidity sensor with an exposed end is the tool for hard surface monitoring or fastresponse monitoring of temperature and relative humidity.
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Product Overview and Specifications
Product Overview
The TRH200 is a versatile instrument for precise environmental temperature and humidity measurements. This precise device delivers accurate temperature and relative humidity measurements with fast response times (t63% = 5 s), ensuring accuracy and responsiveness in diverse environments. Equipped with an exposed sensor, the TRH200 excels at measuring temperature on hard surfaces and can measure relative humidity levels up to 100% RH, making it suitable for various applications. Its compact probe allows for seamless integration into diverse systems, while USB connectivity offers the convenience of easy data acquisition.
Key specifications
Temperature Probe operating range Typical accuracy from -40 °C to 70 °C Resolution Relative humidity Probe operating range Typical accuracy from 0 to 70 °C Maximum accuracy at 25 °C Resolution
-40 °C * to 70 °C ±0.3 °C, Maximum ±0.2 °C 0.01 °C (typical)
0 %RH to 100 %RH (non-condensing) ±2 %RH from 0 %RH to 100 %RH ±4 %RH from 90 %RH to 100 %RH 0.01 %RH (typical)
Miscellaneous
· Supply: Powered by a USB port or a powered USB HUB. · Operating temperature range (USB cable and housing): 0 °C to 70 °C. · Supported by the SensGate DAQ unit. · Computes the dew point, heat index and humidex. · Simultaneous operation of multiple Dracal sensors is supported.**
* Only if the cable is not moved/flexed while the temperature is below 0 °C.
** Only limited by allowable USB topologies and OS capacity. Fifty simultaneous USB sensors have been tested under Windows 8.
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Safety Guidelines
WARNING: Electromagnetic interference (EMI) may decrease the sensor’s accuracy. Avoid using this device near EMI sources such as motors, high-voltage transformers, and fluorescent tubes. WARNING: This product should not be used in applications where its failure may cause personal injury.
Installation and Setup
TIP: As for any precision measurement equipment, powering the unit at least 15 minutes before using it is advised.
Installation
1 Download the DracalView* software at https://www.dracal.com/en/software/
2 Follow the installer’s instructions. The whole process should take less than a minute. The setup is now completed.
3 Insert the unit into a free USB port.
* Includes a set of command-line tools.
Usage Guidelines and Applications
Operation DracalView
We recommend launching DracalView to check if the instrument is connected correctly and works as expected. Here are the main steps of the Getting Started with DracalView guide.
1 Connect an instrument. 2 Launch DracalView. 3 Verify the instrument appears in the Sources tab. 4 Modify units and decimals in the Configuration tab (Optional). 5 Customize the names of channels to record in the Sources tab
(Optional). 6 Visualize data on GraphView.
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Please refer to the TRH200 page for the complete guide, specifically the “Software & Documentation” tab.
Of note, to log data with DracalView, these are the remaining main steps of the Getting Started guide:
7 Initiate the logging task in the Logging tab. 8 Keep an eye on data with BigView. Watch an introductory video for a quick overview of setting up and logging data in less than 3 minutes.
Operation Command-line interface
The command-line tools are available with the download of DracalView. In the Getting Started guide, locate them and call the -h (help) argument, whether on a Windows, MacOS X, or Linux-based computer.
For complete documentation on how to use dracal-usb-get or dracal-sensgate-get, code examples, and integrating sensor data into LabVIEWTM, click on the relevant link in the same Getting Started guide.
Briefly, to log data to a file, here is the command line:
dracal-usb-get -s [serial number] -i [chosen channels] -L [location]
To redirect the output, give the argument -L the parameter “- ” to have a stdout output.
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Operation COM Protocol
“VCP-” prefix: If present, the product is equipped with the virtual COM port (VCP) option, which allows it to be freely converted between USB and VCP modes. It is delivered in USB mode. To convert the product from USB to VCP mode,
1 Open a command-line terminal. 2 Call “dracal-usb-set -f set_protocol VCP” and disconnect the product. To reverse the product back to USB mode,
Send the “PROTOCOL USB” command and disconnect the product. Please note that under Windows, once an instrument is converted to VCP, it is not recognizable by DracalView and the command-line tools. For additional information, please click the relevant link in the Software & Documentation section of the TRH200 page.
Calibration
“-CAL” suffix: If present, the product is equipped with a 3-point user-calibration mechanism. The Getting Started guide for calibration is summarized as follows:
1 Determine the calibration points. 2 Perform the calibration using DracalView or dracal-usb-cal. A comprehensive video tutorial on the best practices for calibrating instruments using DracalView can be found here.
The Getting Started guide for successful calibration, mentioned in this section, provides many tips and complementary documentation.
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Care, Storage, and Recalibration
Care
Use within the specifications available in the TRH200 datasheet.
NOTE: Note that this product is not waterproof and requires protection if contact with water is possible.
Storage
Store within the housing temperature and humidity ranges specified in the TRH200 datasheet.
Recalibration
Dracal’s measuring instruments are factory-calibrated. It is possible to purchase a calibration certificate traceable to the SI along with the instrument and receive a calibrated instrument. An ISO17025-accredited laboratory performs this calibration.
If the instrument has a “-CAL” suffix, it can be adjusted for accuracy during the calibration.
The long-term drift of the TRH200 is less than 0.03 °C per year. Therefore, depending on the user’s application, an adjustment might be required more frequently.
Troubleshooting Guide and Support
Troubleshooting
TIP: Avoid installing the sensor in a location where strong vibration is likely to occur. Strong vibrations may cause slight inaccuracies in the reading.
Feel free to browse the website’s Resources section for any supplementary information. Here are interesting articles:
· Most frequent questions about Dracal · Top challenges and their solutions · FAQs about calibration
Support
Dracal Technologies has a dedicated email address for support: support@dracal.com.
As customer satisfaction is a priority, someone (an actual human!) will respond within 24 hours.
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Return Process and Warranty Information
Return Process
If a customer experiences issues with a Dracal sensor, they can contact support@dracal.com and explain their problem. In most cases, there will be an easy solution.
In the rare event of a faulty instrument under warranty, Dracal Technologies will proceed to a replacement upon evaluating the situation. The procedure will be explained through email once the customer advises support@dracal.com.
Warranty
The complete warranty can be found on Dracal Technologies’ website here. Briefly, Dracal Technologies only warrants to the original product purchaser for 36 months (3 years) from the delivery date.
Accessories and Peripherals
To use Dracal Technologies’ complete DAQ solution, the user must download the software on a computer with a USB port. Aside from sensors, Dracal Technologies offers a remote data logging station: the SensGate. Both a Wi-Fi/Ethernet gateway for Dracal’s sensors and a data logger, it fulfills the needs of customers requiring a remote solution to precision data acquisition.
Disassembly and Environmental Considerations
Disassembly Instructions
1 Turn Off Power: Before disassembling the USB sensor, ensure it is disconnected from any USB port.
2 Remove External Connections: Unplug any cables connected to the USB sensor.
3 Identify Screws and Fasteners: Locate and identify any screws or fasteners securing the casing of the USB sensor.
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4 Separate Casing: Gently separate the casing; be careful about damaging internal components. If resistance is encountered, recheck for any overlooked screws.
5 Document Component Positions: Before further disassembly, document the positions of internal components for ease of reassembly.
6 Handle Components with Care: Handle internal components carefully to avoid electrostatic discharge and damage. Use an ESD (Electrostatic Discharge) mat or wrist strap if available.
7 Follow Reverse Order for Reassembly: When reassembling the USB sensor, follow the disassembly steps in reverse order, ensuring components are correctly positioned and secured.
Environmental Considerations
1 Recycling Recommendations: Dispose of components and packaging materials in accordance with local recycling regulations. Check with local authorities for proper e-waste disposal facilities.
2 Reuse Opportunities: Consider reusing components or donating functional parts to minimize environmental impact.
3 Minimize Energy Consumption: Power down or disconnect the USB sensor when not in use to minimize energy consumption.
RoHS Compliance
Our USB sensors adhere to RoHS (Restriction of Hazardous Substances) directives, ensuring they are free from harmful substances such as lead, mercury, and cadmium.
CE and REACH Compliance
These USB sensors comply with CE (Conformité Européenne) and REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) regulations, meeting European safety and environmental impact standards.
Document Revision History
Version 1.0 2024-02-08 Creation of the User Manual.
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info@dracal.com dracal.com
+1 450.812.8612
Dracal Technologies Inc. A204 – 7900 Taschereau Blvd Brossard (Quebec) J4X 1C2 Canada
Documents / Resources
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Dracal TRH200 USB Temperature and Humidity Sensor [pdf] User Manual TRH200 USB Temperature and Humidity Sensor, TRH200, USB Temperature and Humidity Sensor, Humidity Sensor, Sensor |