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Guangzhou Zhongxin Automation Technology Co., Ltd】We specialize in supplying FUTEK force sensors from the United States(
FUTEK force sensor in the United StatesLCM350 force sensor ensures fast delivery time, 100% original import, and strives to become the top brand of sensor sales in China. The complete models of the American FUTEK force sensor LCM350 series weighing sensors are FSH04077, FSH04079, FSH04078, FSH04080
FUTEK, USA_ Introduction to LCM350 series products
Model: LCM350
Brand: FUTEK, USA
Country: United States
force sensorName: Tension Pressure Sensor
Application: Universal tensile testing machine
Range: 7.5klb, 10klb
FUTEK, USA_ Installation dimensions of LCM350 series
FUTEK, USA_ LCM350 series complete model
|
ITEM |
KLB |
KN |
Thread |
Natural Frequency (kHz) |
|
FSH04081 |
4 |
17.8 |
1/2-20 |
14.5 |
|
FSH04083 |
4 |
17.8 |
M12x1.75 |
14.5 |
|
FSH04082 |
5 |
22.2 |
1/2-20 |
14.5 |
|
FSH04084 |
5 |
22.2 |
M12x1.75 |
14.5 |
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1. From the measurement range
When choosing a humidity sensor, the first step is to determine the measurement range. Except for meteorological and scientific research departments, temperature and humidity measurement and control generally do not require full humidity range (0-100% RH) measurement.
2. Measurement accuracy should be precise
Measurement accuracy is the most important indicator of humidity sensors. For humidity sensors, every one percentage point increase is a step up, or even a level up. Due to the need to achieve different accuracies, the manufacturing costs and selling prices vary greatly. So users must tailor their clothing according to their needs and should not blindly pursue "high, precision, and sharpness". If using a humidity sensor at different temperatures, the display value also needs to consider the influence of temperature drift. As is well known, relative humidity is a function of temperature, and temperature seriously affects the relative humidity in a specified space. Every 0.1 ℃ change in temperature. A humidity change (error) of 0.5% RH will be generated. If it is difficult to achieve constant temperature in usage scenarios, it is inappropriate to propose excessively high humidity measurement accuracy. In most cases, if there is no precise temperature control method, or if the measured space is unsealed, an accuracy of ± 5% RH is sufficient. For local spaces that require precise control of constant temperature and humidity, or for situations where humidity changes need to be tracked and recorded at any time, humidity sensors with an accuracy of ± 3% RH or higher should be selected. The requirement of accuracy higher than ± 2% RH may not even be achievable with a standard humidity generator for calibrating sensors, let alone the sensors themselves. It is still difficult to achieve an accuracy of 2% RH for relative humidity measuring instruments, even at 20-25 ℃. The characteristics given in the product documentation are usually measured at room temperature (20 ℃± 10 ℃) and in clean gas.
3. Consider the issues of time drift and temperature drift
In practical use, due to the influence of dust, oil stains, and harmful gases, electronic humidity sensors will age and have a decrease in accuracy over time. The annual drift of electronic humidity sensors is generally around ± 2%, or even higher. In general, manufacturers will indicate that the effective usage time for one calibration is 1 or 2 years, and recalibration is required upon expiration.
4. Other precautions
Humidity sensors are non sealed, and to protect measurement accuracy and stability, they should be avoided as much as possible in acidic, alkaline, and organic solvent containing atmospheres. Also avoid using in environments with high levels of dust. To accurately reflect the humidity of the space to be measured, it is also necessary to avoid placing the sensor in dead corners that are too close to the wall or have poor air circulation. If the room being tested is too large, multiple sensors should be placed. Some humidity sensors have high requirements for power supply, otherwise it will affect measurement accuracy. Or sensors may interfere with each other and even fail to function. Suitable and accurate power supply should be provided according to technical requirements during use. When sensors need to transmit signals over long distances, attention should be paid to the issue of signal attenuation. When the transmission distance exceeds 200m, it is recommended to use a humidity sensor with frequency output signal.
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