Wuhan Guide HTWS-V Manual

Dew point meter

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Dear Client

Thank you for Purchasing our HTWS-V Dew Point Meter.

Please read the manual in detail prior to first use, which will help

you use the equipment skillfully.

company's products continually, so there may be

slight differences between your purchase equipment

and its instruction manual. You can find the changes

in the appendix. Sorry for the inconvenience. If you have further

questions, welcome to contact with our service department.

may bring voltage, when you plug/draw the test wire or

power outlet, they will cause electric spark. PLEASE

CAUTION RISK OF ELECTRICAL SHOCK!

Company Address:

 T4，No. 41, High-tech 2 Road，East Lake High-tech Development Zone，

Wuhan

 Sales Hotline: 86-27- 87457960

 After Service Hotline: 86-27- 87459656

 Fax: 86-27- 87803129

 E-mail: qiao@hvtest.cc

 Website: www.hvtest.cc

Our aim is to improve and perfect the

The input/output terminals and the test column

Table of Contents

Summary of Contents for Wuhan Guide HTWS-V

Page 1 Dear Client Thank you for Purchasing our HTWS-V Dew Point Meter. Please read the manual in detail prior to first use, which will help you use the equipment skillfully. Our aim is to improve and perfect the company's products continually, so there may be slight differences between your purchase equipment and its instruction manual.
Page 2  SERIOUS COMMITMENT All products of our company carry one year limited warranty from the date of shipment. If any such product proves defective during this warranty period we will maintain it for free. Meanwhile we implement lifetime service. Except otherwise agreed by contract.
Page 3 ground pole of the shell must be grounded. To prevent electric shock, the grounding conductor must be connected to the ground. Make sure the product has been grounded correctly before connecting with the input/output port. Pay Attention to the Ratings of All Terminals To prevent the fire hazard or electric shock, please be care of all ratings and labels/marks of this product.
Page 4 －Security Terms Warning: indicates that death or severe personal injury may result if proper precautions are not taken Caution: indicates that property damage may result if proper precautions are not taken.
Page 5: Table Of Contents
Contents I. Overview..................6 II. Application..................6 III. Products features................ 6 IV. Product parameters..............8 V. Panel structure................9 VI. Operating principle..............10 VII. Operational approach.............10 VIII. Software operation..............18 IX. Failure phenomenon and trouble shooting......26 X. Precautions.................26 XI. Packing list.................27 Appendix 1.
Page 6: Overview
I. Overview HTWS-V Dew Point Meter is researched and designed by using imported high-precision dew point sensor and the latest digital circuit control technology, which is the intelligent precision instrument to measure the moisture content of the SF6 gas instrument...
Page 7 response, stable and reliable. 3. Intellectualized: Boot self-calibration, the sensor probe can be automatically calibrated zero, automatically eliminate systematic errors introduced by zero drift, to ensure the accuracy of measurement. 4. Multiple protections: With oil filters, not affected by dust particles and most of chemical contamination, to protect sensor resistance to oil, very suitable for use in industrial environments.
Page 8: Product Parameters
IV. Product parameters Dew point value －80℃～+20℃ Measurement Range Micro water value 0～19999uL/L ±0.5℃（－60℃～＋20℃） Accuracy ±1.0℃（－80℃～－60℃） 0.1℃ Dew point value Resolution Micro water value 1uL/L 63% need 5s, 90% need 45s (-60 ℃ ~ +20 ℃) Response time (+20℃,0.1Mpa) 63% need 10s, 90% need 240s (+20 ℃ ~ -60 ℃) Sampling flow 0.6L/min±20% rate...
Page 9: Panel Structure
V. Panel structure 1. The front panel layout of instrument is shown in Figure 1. Figure 1 the front panel layout ①LCD screen ②Flow adjustment ③Power switch ④Status indicator 2. The back panel layout of instrument is shown in Figure 2 Figure 2 the back panel layout ①Gas inlet ②RS232 interface...
Page 10: Operating Principle
VI. Operating principle When measured gas into the sensor sampling chamber, the trace moisture in the gas is adsorbed to the sensor, the sensor converts the change into electrical signal, to be processed by the microprocessor, and finally display on the LCD screen. The device is composed of the gas path section, the sensor section, the signal processing section and the liquid crystal display output section.
Page 11 As shown in figure 4 connection method, correct connect to inlet pipe and outlet pipe Figure 4 correct wiring Note: ① according to Figure 4 correct wiring, do not connect inlet pipe and outlet pipe wrong; ② with the wrench to tighten nut joints of inlet pipe and SF6 device;...
Page 12 4. Check power Initialization is completed, please check displayed battery power on the bottom right corner of the LCD screen, as shown in Figure 6. If the power is less than 20%, please continue to use after plug in charger. This instrument can be used during charging.
Page 13 7. Observe "status indicator" light, when the "status indicator" light flashes, indicate that the instrument is self-calibrating, when "status indicator" light from flashing to normally on state, indicating the instrument self-calibration is completed, can read value at this time. The instrument can simultaneously display dew point value, volume ratio and measuring curve during the measurement, the main interface on the top, the first data is "dew point value", the unit is ℃;...
Page 14 Figure 8 dew point calibration Click on the left and right arrow keys to input the "Range" and "Zero" data, click on "Confirm", the new calibration coefficient is stored in the instrument, the instrument will calculate the dew point value according to the new coefficient;...
Page 15 instrument can store up to 100 data. After selected save position click "Confirm" to save the data; click "Cancel", the save position back to "00"; click "Return" to return to the main interface. 9. Read Click on "Read" button to enter "Read" interface, the "Read" interface as shown in Figure 10.
Page 16 Figure 11 communication 11. Temperature Click on "Temperature" button to enter the "Temperature" interface, the "Temperature" interface as shown in Figure 12. Figure 12 temperature The interface displays the current temperature value. Click on "Temperature Calibration", the instrument into the "Temperature Calibration" interface, as shown in Figure 13.
Page 17 Figure 13 temperature calibration The operation method of temperature calibration is same with dew point calibration, no description here. 12. Time calibration Click on clock icon to enter the "Time Calibration" interface, the "Time Calibration" interface as shown in Figure 14. Figure 14 time calibration The operation method of time calibration is same with dew point calibration, no description here.
Page 18: Software Operation
VIII. Software operation 1. Software function introduction The software is used to synchronize the data from instrument to the computer for further analysis and processing. 2. Software features (1) Green software, no need to install. (2) RS232 and USB two communication methods. (3) Support Windows series operating system, running fast, easy to use.
Page 19 (1) Serial data line or USB data line: connect the instrument and the computer serial port or USB interface, to ensure the stability of the connection. (2)USB data line: install the USB driver program before use and detailed installation steps, please refer to the "6, software instructions" “(10) USB driver installation instructions ".
Page 20 instrument online, at this time there are the following two cases: Online success: as shown in figure 17. On line success, the window below shows "online success", button color turns green, while displaying the corresponding communication port type (serial /USB). Figure 17 Online success On line failure: as shown in figure 18.
Page 21 If online failure may be the following interface: ① The instrument is not entered into the computer communication interface after it power on. ② USB data line or serial data line connection is not stable. ③ Using USB data lines, but the USB driver is not properly installed. ④...
Page 22 Figure 20 Generate report The report title, equipment number, equipment name, and other basic information can be modified according to your requirement. Click “OK” to enter the test report print preview page, the test report is presented in the form of A4 paper.
Page 23 the file, save the data, as shown in figure 22. Figure 22 export data Open the Excel data file that you just saved, as shown in Figure 23 Figure 23 excel file (7) Delete. Select a row of data, right - click delete, delete the selected data from the current list.
Page 24 Figure 24 delete data Note: deleted test data, you can retrieve data through data synchronization. (8) Disconnect. Click Tools > disconnect, disconnect the computer from the instrument, as shown in figure 25. Figure 25 disconnect (9) After disconnected, the list is empty, the status bar icon becomes red, and the status bar indicates disconnected, as shown in Figure 26.
Page 25 (10) USB driver installation instructions Open “USB driver”, find , double click install USB driver, interface as figure 27. Press enter to finish the installation, after installation, re-plug the USB cable. Figure 27 driver installation Note: if through the above method cannot properly install "USB driver", then after connection to USB data line, through windows pop-up the hardware wizard to find "USB driver"...
Page 26: Failure Phenomenon And Trouble Shooting
IX. Failure phenomenon and trouble shooting Failure phenomenon Trouble shooting Boot without reaction, LCD screen Plug in the charger to use without display Check whether the data line is connected Check whether the instrument is in line Communication is not successful Reinstall the driver after uninstall Restart after shutdown X.
Page 27: Packing List
XI. Packing list 1. Host 2. Air inlet pipe (3m) ( with common joint ) 3. Bleed line (3m) 4. Transition joint (No.①~⑧) 5. Raw material belt 6. RS232 wire 7. USB- RS232 wire 8. Charger 9. CD 10. Inspection report 11.
Page 28: Appendix 1. Packing Of Transition Joint Of Dew Point Meter
Appendix 1. Packing of transition joint of dew point meter...
Page 29: Appendix 2. Measurement Requirement Of Water Content In Sf6
Appendix 2. Measurement requirement of water content in SF6 circuit breaker Test item Standard (uL/L， 20℃) SF6 circuit breaker leave factory and overhaul (before the whole assembly) should be measure ≤150 the dew point value of Opening unit and support unit.