GS-IR 8816 Series Infrared Thermometer Objects having temperatures above absolute zero radiate infrared energy all the time. This infrared energy has a certain functional relations with the surface temperature of the objects. Through detector to receive this energy and by calculating to get the surface temperature is called infrared measurement. Infrared measurement has such advantages and features as quick response, high flexibility and accuracy, and also wide measurement range, especially its non contact measuring, has made measuring the temperatures of moving objects and hard to-reach location possible. Infrared thermometer consists of optical system, infrared detector, signal processing route, temperature reading and output.
GS-IR-8816 Specifications Test range: 600~1400 Degrees Celsius 800~2000 Degrees Celsius 1000~3000 Degrees Celsius Measuring accuracy: ±1% FS Repeatability: ±0.5% of reading Response time: 500ms Resolution: 1 Degrees Celsius D:S.: 120:1 Wave band: 2.0um~2.5um Time interval: 1~99s, step length 1s Emissivity: 0.10~1.00 adjustable, step length 0.01 Output: 4~20mA and RS485 (together) Ambient temperature range: 18 60 Degrees Celsius (with water cooling up to 150 Degrees Celsius) Storage temperature : 40 85 Degrees Celsius Size: L: 192mm*69mm Weight: 600g Power supply: 24VDC ±10%, 100mA (Any changes, no notifications Instructions For The GS-IR-8816 Display and buttons
Instructions For The GS-IR-8816 (Continued) There are three temperature measurement ways: 1.) The current value(tem): the current value of object. Application: the normal way. 2.)Maximum measurement(max): the highest temperature of the specified time interval( T). Application: when measuring the moving target object(as steel, steel wire), the condition of measured surfaces will be different(as there are would be some iron, oxidation epidermis), then it s better to choose this way.
3.) Average measurement(avg): the average value in the special time interval( T). Application: suitable for measuring the metal liquid in boiling. GS-IR-8816 Settings Factory default settings: the measurement type is Maximum measurement(max), emissivity is 0.99, T is 5s. Time interval( T) setting: click the MODE into the time interval setting program, the bottom right light( T ) will light, the rest lights are out, the LED display show T value, then adjust the value by or, the range is 1~90s, step length is 1s.
GS-IR-8816 Settings (Continued) Emissivity setting: click the key MODE again, to make the sensor into the emissivity setting program, the indicator will light, the rest lights are out, LED display show emissivity value, then adjust the value by or, the range is 0.1~1.00, step length is 0.01.Click the key, the sensor will back to the measurement status. Choose the measurement way: in the measurement status, by the key or to choose the measurement way. If click, the measurement way changed as below drawing; when you selected one type, the corresponding light will on, the rest lights are off. GS-IR-8816 Dimensions
Fixed Mounting 90 adjustable Three dimensional adjustable
Air wipe and Water cooling Wiring
Caution Sensor to object The farthest distance between the sensing head and the object is decided by the size of the object and the location of the sensing head. Distance ratio refers to the object`s location L and optical target`s diameter d. The bigger the distance ratio K=L/d, the smaller the size of the object can be in the same distance situation, or the distance can be farther for the same size objects. In order to get an ideal effect, the actual size of the object is bigger than the size calculated by the distance ratio, at least 1.5 times to the value. Emissivity Materials have different emissivity due to its different situation of the surface. People design an ideal object blackbody when studying the infrared radiation. It s an object of which absorption rate of incoming infrared energy equals under any circumstances. In order to compensate the measuring difference due to different emissivity, conditioning the emissivity value based on materials should be done. (appendix 1 lists some emissive value of parts of the materials) Aiming In the measurement, it is better to keep the infrared sensor perpendicular to the object surface, if can`t, the angle with vertical must be less than 45, otherwise will affect the measurement accuracy.
Because of the dust, please don`t aim the object from bottom up. Usually the heat flow upward mobility, so don`t install the infrared sensor on the top of the object. Choose the suitable direction, to avoid the reflection of other objects, which with high temperature.
Direct light will affect the stability, even if the objectives have not heated, so it is better to use a shelter to keep off the highlight. Environment temperature Great changes in the environment temperature will lower the accuracy of the sensor, but it will be normal after a minutes. The working temperature range of the sensor is 18 ~60 Degrees Celsius. When the temperature is above 60 Degrees Celsius, water cooling house should be used. When use it, the temperature can be up to 150 Degrees Celsius. Air quality An ordinary air medium is permitted to exist bewteen the sensor and the object, but if there are larger quantity of vapor, powder smoke, it will affect the accuracy, so air sweeper and water cooling house are suggested to be use to lessen the difference and avoid destroying the lens. Ele magnetic interference In order to reduce the interference, please pay attention to the following: The sensor should be away from the strong powder and magnet supply. Make sure the sensor be completely insulated Make sure the shielded cable connected to the earth.
Maintenance Lens cleaning Blow off particles by using lean compressed air Gently brush the remaining debris away with a camel`s hair brush. Carefully wipe the surface with a moist cotton swab or a clean soft rag. The swab or rag may be moistened with water based glass cleaner. Case cleaning To clean the exterior housing, simply use soap and water or a mild commercial cleaner. Wipe with a soft rag. Warranty Our products are warranted for one year on the condition of normal use and maintenance. We offer lifelong fee based service when the products are over warranty period. Users should not take apart the instrument freely. If fail, please return to the company for service. Appendix 1: emissivity table Typical emissivity values for metals Material Emissivity Aluminum Unoxidized 0.02 0.10 Oxidized 0.20 0.40 Alloy A3003 Oxidized 0.30 Roughened 0.10 0.30 Brass Burnished 0.30 Oxidized 0.50 Haynes Alloy 0.30 0.80 Inconel Oxidized 0.70 0.95 Sandblasted 0.30 0.60
Appendix 1: emissivity table (Continued) Typical emissivity values for metals Iron Oxidized 0.50 0.90 Un oxidized 0.05 0.20 Rusted 0.50 0.70 Iron, cast Oxidized 0.60 0.95 Un Oxidized 0.20 Iron, Wrought Dull 0.90 Lead Rough 0.40 Molybdenum Oxidized 0.20 0.60 Nickel Oxidized 0.20 0.50 Electrolytic 0.05 0.15 Platinum Black 0.90 Typical emissivity values for non metals Material Emissivity Asbestos 0.95 Asphalt 0.95 Basalt 0.7 Carbon Un oxidized 0.80 0.90 Graphite 0.70 0.80 Carborundum 0.90 Geramic 0.95 Clay 0.95 Concrete 0.95 Cloth 0.95 Class plate 0.85 Gravel 0.95 Gypsum 0.80 0.95 Ice 0.98 Limestone 0.98 Paint(non al.) 0.90 0.95 Paper(any color) 0.95 Plastic 0.95 Rubber 0.95 Sand 0.90 Snow 0.90 Soil 0.90 0.98 Water 0.93 Wood, natural 0.90 0.95 Steel Cold Rolled 0.70 0.90 Ground sheet 0.40 0.60 Polished sheet 0.10 Oxidized 0.70 0.90 Stainless 0.10 0.80 Titanium Oxidized 0.50 0.60