Temp. & humidity indicator AH8008 Product Manual www.aosong.com
1 Product Overview AH8008 handheld multi-function temperature and humidity instrumentation consists of two parts: the AH8008 instrument and AM2315 temperature and humidity probe. This product through the factory stringent calibration, testing, aging process, to the relevant technical specifications. AH8008 handheld instrument is a versatile, high-precision capacitance temperature and humidity measurement and display instrument; with fast response time, attractive appearance, excellent performance, high precision, replaceable probe, etc.; built-in recording function can record 2500 points data, a long continuous measurement. In conjunction with the computer software can be easily carried out various types of data processing and long-term measurement; and can be composed of a set of intelligent control and monitoring of specific environmental temperature and humidity, the ideal platform. As the instrument built-in switch between multiple humidity parameters of the use of a wide range. Physical map Dimensions(Unit: mm) 2 Range of applications Electronics, pharmaceuticals, food, warehousing, tobacco, textile, weather and other industries. 3 Features A variety of temperature and humidity parameters output, historical curve, calibration function, ultra-low power consumption, USB recorder, data lock function, maximum and minimum output, support for Chinese and English menu, the sensor malfunction error, automatic shutdown, LCD backlight can be replacedhigh-precision probe. - 1 -
4 Connect the probe Follow the schematic to connect the probe to check whether tighten. Please note that align the connector bayonet connection. 5 Battery Installation 6 Display interface This product uses three AAA 1.5V battery Normal digital measurement mode - 2 -
Digital mode, the locked state 7 Product parameters The following parameters such as the special instructions at 25 Relative humidity Range: 0 ~ 99.9% RH Accuracy (including non-linearity, hysteresis and repeatability): ± 2% RH Factory calibration uncertainty: ± 0.6% RH (0 ~ 40% RH) ± 1.0% RH (40 ~ 97% RH) Response time (90%), still air 8s, plastic grille, 15S PE filter Resolution: 0.1% RH Long-term stability: <0.5% RH / year Temperature Range: -20 ~ 80 Accuracy: (25 ) ± 0.3 Resolution: 0.1 Long-term stability: <0.1 / year Electrical Characteristics Operating ambient temperature (instrument): -10 ~ 60 Working environment humidity (meters): 0 ~ 95%RH non-condensing Typical operating current value (meters): open 10mA backlight 18mA Standby current typical (meter): <1uA Storage temperature and humidity range (instrument): -10 ~ 60, 0 ~ 90%RH non-condensing Probe Operating temperature: -40 ~ 80, no chemical corrosion Working environment humidity: 0 ~ 99.9% non-condensing Storage temperature and humidity range: -20 ~ 70, 0 ~ 95%RH non-condensing - 3 -
8 Graphics mode In digital mode, press the ENTER key you can switch to graphics mode. Use the / keys, you can switch to the other parameters. The system default sampling time of 2 seconds, an image can be drawn by 80 points. If you need longer than 160 seconds the time period observed image. You can modify the "proportion" in the "Image Settings" setting, to observe the parameters trend of up to 80 minutes. Graphics mode (locked) 9 Menu introduction In the normal image or digital mode, press MENU to enter the menu interface shown in Figure (if there is no key action within 30 seconds will automatically return to the normal interface). You can set various parameters of the instrument. As follows: Menu interface 10 System Settings MENU menu, use the ENTER key, select "System Settings" (bold white text that is selected will no longer specify) can enter the system setup menu, press ENTER. System Settings menu - 4 -
Language settings Using the / to select "Language" can enter the language selection, press ENTER. Using the / to select a language, press ENTER to confirm the selection. Front " " indicates that the language will be set to the system language. Press MENU to exit the language settings. LCD Contrast settings Using the / to select "Contrast" contrast adjustment, and press ENTER key. Use the / to choose to reduce or increase the contrast and the contrast, press ENTER to confirm and exit the contrast adjustment. Contrast adjustment or press the MENU button to exit without saving the current modify the contrast. Backlight brightness adjustment Use / keys, select "Backlight" and press ENTER key backlight brightness adjustment. Use the / to choose to reduce or increase the brightness and the brightness, press ENTER to confirm and exit the contrast adjustment. Or brightness adjustment Press the MENU button to exit without saving the current modify the backlight brightness. Automatic shutdown Using the / keys, select "Automatic Shutdown" shutdown setting and press ENTER. Use / keys to select the sleep timer on or off the automatic shutdown feature. Press ENTER to confirm, or press the MENU button to exit the Auto Power Off setting. Record set ENTER menu, use the / to select "Record Settings", press ENTER to enter the record settings menu. Sampling interval 2 seconds to 99 minutes. Using the / keys to select the sampling interval, press ENTER to enter the modified 10-digit, use the / to modify numerical size, press ENTER to enter the digit to modify, then press ENTER key to enter the minutes or seconds choice, then press ENTER editing. Output parameters Modify the record graphical output parameter (DP dew point, RH, relative humidity, a absolute humidity, wet air enthalpy, the Y-mixing ratio, Pw water vapor pressure). Using the / keys to select the output parameter "Press ENTER to enter the change. Using the / to select the appropriate parameters, press ENTER to confirm, or press the MENU key to exit. - 5 -
Record switch Turned on or off the record. When you quit the MENU to return to the normal interface to start recording, the upper-right corner of the respiratory point is recorded. Behind the data representation since the boot record points. In the locked state, the record will be suspended. Empty records Delete all records, select the Empty the record, press ENTER, the Delete Record dialog box will pop up to confirm, using the / to select "Yes" to delete, press ENTER. View the record To start recording, and recorded data. Image Settings menu, you will see the "View Record" option. Select "view the record, you can observe the trend of the recorded parameters change over time. Using the / to next page to view the previous or next page of the record, press ENTER or MENU to return "Image Setup" menu. Modify the image ratio, zoom, zoom ratio = image proportion on record the results. Image of each point value = record points / ratio. Is scaling the purpose of the record points average. Recorded image, the x-axis is log points. To amend the record set> output parameter, you can view the other recorded parameters. (When the amount of data is large, you need to wait for some time about 15 seconds) before starting the record after record with the boot by the pipe-delimited. Image Settings Ratio: Set image scaling parameters trend in real-time monitoring of image mode, modify the image ratio, you can monitor the different length of time (160 s ~ 2500 s), modify the ratio of the image will start drawing again. View record: see detailed record settings. Temperature and humidity calibration Humidity: Humidity adjustable range: factory calibration value ± 9.9%. Temperature: the temperature adjustable range: factory school, given the value of ± 9.9 / F. Calibration: When the set temperature and humidity adjusted value, select the "calibration" will pop up to confirm the calibration dialog box, select "Yes" to enter the calibration status will automatically return to the menu interface temperature and humidity calibration, the calibration is complete. - 6 -
Restore the factory default This option allows you to quickly restore the factory temperature and humidity calibration status. 11 Communication with the computer AH8008 hand-held instrument equipped with a full-featured PC software, PC software, you can set the alarm threshold, the timing of data acquisition, real-time curve of each parameter, the history of the curve, and other functions. PCSoftware interface Alarm record Data record Real-time curves - 7 -
12 Display Parameters Description 13 Calculation parameters The accuracy of the calculation parameters mainly by temperature and humidity sensor calibration accuracy and measurement accuracy of the decision. Dew point or frost point calculation: (-50 ~ 100 ) Built-in simplified Wexler saturation vapor pressure table The Wexler saturated vapor pressure table on the error: -50 ~ -47 : <0.25% -47 ~ -28 : <0.15% -28 ~ 100 : <0.03% Mixing ratio: Per kilogram of dry air containing water vapor mass, in g / kg. In the standard Atm (0.101325MPa): Y = 0.622P / (0.101325-P) g / kg P: saturated vapor pressure of the unit: Mpa Y: mixing ratio, unit: g / kg dry air Absolute humidity: With the quality of water vapor per unit volume in the wet air. Pw = 2166843P / T P: saturated vapor pressure of the unit: Mpa T: Kelvin temperature scale units: K Moist air enthalpy: (standard atmospheric pressure of -40 ~ 200 ) I = (1.01 +0.00188 Y) t +2.491 Y j / g Of which: (1.01 +0.00188 Y) t is the heat varies with temperature, ie, "significant Heat "; 2.491Y is the latent heat of vaporization of the Ykg water at 0, it is only with the containing Moisture content changes, independent of temperature, that is, the "latent heat". Y: mixing ratio, g / kg t: Celsius temperature - 8 -
14 Frequently Asked Questions 15 Errors and sources Humidity varies with temperature error maps Temperature error map The measured value of the product may be subject to the following factors: 1, the temperature error placed in a test environment in settling time is too short near sources of heat, cold source, or directly at the sun. 2, the humidity error placed in a test environment in settling time is too short prohibited for a long time in the steam, spray, curtain or condensing environments. 3, pollution The dust or other environmental pollution, regular cleaning of the product. - 9 -
16 Recover Part of the material is recyclable. Dispose of batteries and parts, not regular household waste disposal laws and regulations. 17. License Agreement Without the prior written permission of the copyright holder, shall not in any form or by any means, electronic or mechanical (including photocopying), copy any part of this manual, nor shall its contents be communicated to a third party. The contents are subject to change without notice. Aosong Electronics Co., Ltd. and third-party ownership of the software, the user may use only signed a contract or software license. 18. Warnings, and personal injury This product is not applied to the safety or emergency stop devices, as well as the failure of the product may result in injury to any other application. Shall not apply this product unless there is a special purpose license. Installation, handling, use or maintenance of the product refer to product data sheets and application notes. Failure to comply with this recommendation may result in death and serious personal injury. The Company will bear the resulting personal injury and death compensation, and waive any claims that the resulting subsidiary company managers and employees and agents, distributors, etc. that may arise, including: a variety of costs, compensation costs, attorneys' fees, and so on. 19. Quality Assurance Their products directly to buyers to provide quality assurance for a period of 12 months (one year) (calculated from the date of shipment). Publishes the technical specifications of the product data sheet shall prevail. If the warranty period, the products are card quality is defective, the company will provide free repair or replacement. The user must satisfy the following conditions: 1 The product is found defective within 14 days written notice to the Company; 2 The return to the company should be paid by the purchaser; 3 The product should be within the warranty period. The Company is only responsible for those used in the occasion of the technical condition of the product defective product. Without any guarantee, warranty or written statement of its products used in special applications. Company for its products applied to the reliability of the product or circuit does not make any commitment. - 10 -