The load cell is a general term for the load cell and the load cell, and its measurement characteristics are evaluated by a single parameter. The load cell is divided into eight types according to the conversion method: photoelectric type, hydraulic type, electromagnetic force type, capacitive type, magnetic pole deformation type, vibration type, gyro ceremony, resistance strain type, etc., and the most widely used resistance strain type. Weighing sensors have long penetrated into the extremely broad areas such as industrial production, space development, ocean exploration, environmental protection, resource surveys, medical diagnostics, bioengineering, and even cultural relics protection. Resistive strain gauge load cells are mainly made up of elastic components. The resistance strain gauge, the measuring circuit and the transmission cable are composed of four parts. The strain gauge is attached to the elastic member, and when the elastic member is deformed by force, the strain gauge thereon is deformed and the resistance is changed. The measuring circuit measures the change in the strain gauge resistance and converts it into an electrical signal output proportional to the magnitude of the external force. The electrical signal is processed to display the mass of the measured object in digital form. The resistance strain type load cell has a weighing range of several tens of grams to several hundred tons, and the measurement accuracy is from 1/1000 to 1/10000. The structure is simple and the reliability is good. Most electronic scales use this type of sensor. The resistance strain gauge load cell is based on the principle that the elastic elastic element, the sensitive beam is elastically deformed under the action of an external force, so that the resistance strain gauge conversion element attached to the surface thereof is also deformed together, and after the resistance strain gauge is deformed, it The resistance value will change or decrease, and then the corresponding measurement circuit converts this resistance change into an electrical signal voltage or current, thereby completing the process of converting the external force into an electrical signal. During the measurement, the weight is loaded onto the elastomer of the load cell causing plastic deformation. During the working process of the resistance strain gauge load cell, the strain positive and negative directions are converted into electronic signals by strain gauges mounted on the elastomer. The simplest curved beam load cell has only one strain gauge. Generally, the elastomer and the strain gauge are combined in a variety of ways, similar to the outer casing sealing member or the like to protect the strain gauge. Weighing sensors should take into account many factors when choosing. In actual use, we mainly consider the following factors. The range of the load cell is determined according to your application. The range selection of the load cell can be determined based on the maximum weighing value of the scale, the number of selected sensors, the weight of the scale body, the maximum eccentric load that can be generated, and the dynamic evaluation of the dynamic load factors. In general, the closer the sensor's range is to the load assigned to each sensor, the higher the accuracy of its weighing. However, in actual use, because the load applied to the sensor is not only the object, but also the weight of the scale body, tare weight, eccentric load and vibration shock, so when selecting the sensor, we must consider many factors to ensure Sensor safety and longevity. Secondly, the accuracy level of the load cell includes the non-linearity, creep, repeatability, hysteresis, sensitivity and other technical indicators of the sensor. When choosing, you should not blindly pursue high-grade sensors. You should consider the accuracy level and cost of the electronic balance. Under normal circumstances, the total accuracy of the selected sensor is the sum of the nonlinearity, non-repetition and hysteresis. The rms value is slightly higher than the accuracy of the scale. The choice of the form of the load cell depends mainly on the type of weighing and the installation space, to ensure proper installation, safe and reliable weighing; on the other hand, consider the manufacturer's recommendations. For the sensor manufacturer, it generally specifies the force, performance, installation, structure, and material of the sensor.
Power Meter is a monitoring and testing instrument which determines the power consumption of a connected appliance and the cost of the electricity consumed. LCD Display Power Meter Socket,Power Meter Plug Outlet,Electricity Usage Monitor Socket,LCD Energy Power Meter Socket,Digital LCD Power Meter Socket NINGBO COWELL ELECTRONICS & TECHNOLOGY CO., LTD , https://www.cowellsockets.com
Built-in 3.6V rechargeable Batteries ( . The purpose of the batteries is to store the total electricity and memory setting
Resetting
If an abnormal display appears or the buttons produce no response, the instrument must be reset. To do this,
press the RESET button.
Display Mode
Entire LCD can be displayed for about 1 minute and then it automatically gets into Model. To transfer from
one mode to the other, press the FUNCTION button.
Mode 1: Time/Watt/Cost Display Display duration(how long) this device connect to power source.LCD on first line shows 0:00 with first two figures mean minutes(2 figures will occur while occur at 10 min) and the rest shows seconds. After 60mins, it displays 0:00 again with first two numbers meas hour(2 figures will occur at 10hours)and the rest shows minutes. The rest can be done in the same manner which means after 24 hours, it will re-caculate. LCD on second line displays current power which ranges in 0.0W 〜 9999W. LCD on third line displays the current electricity costs which ranges in O.Ocost 〜 9999cost. It will keep on O.OOcost before setting rate without other figures.
Mode 2: Time/Cumulative electrical quantity Display Display duration(how long) this device connect to power source.
LCD on first line shows 0:00 with first two figures mean minutes(2 figures will occur while occur at 10 min) and the rest shows seconds. After 60mins, it displays 0:00 again with first two numbers meas hour(2 figures will occur at 10hours)and the rest shows minutes. The rest can be done in the same manner which
means after 24 hours, it will re-caculate. LCD on second line displays current cumulative electrical quantity which ranges in 0.000KWH 〜 9999KWH without other figures. LCD on third line displays"DAY"- "1 'Will be showed on numerical part(the other three figures will be showed at carry) which means it has cumulated electrical quantity for 24hours(one day). The rest can be done in the same manner untill the maximal cumulative time of 9999 days.
Mode 3: TimeA^bltage/Frequency Display LCD on first line displays the same as Mode 1 dones. LCD on second line displays current voltage supply (v) which ranges in 0.0V 〜 9999V .LCD on third line displays current frequency (HZ) which ranges in 0.0HZ 〜 9999Hz without other figures.
Mode 4: Time/Current/Power Factor Display LCD on first line displays the same as Mode 1 dones.LCD on second line displays load current which ranges in 0.0000A 〜 9999A. LCD on third line displays current power factor which ranges in 0.00PF 〜 LOOPF without other figures.
Mode 5:Time/Minimum Power Display LCD on first line displays the same as Mode 1 dones. LCD on
second line displays the minimum power which ranges in 0.0W 〜 9999W. LCD on third line displays character of "Lo" without other figures.
Mode 6: Time/Maximal Power Display LCD on first line displays the same as Mode 1 dones. LCD on second line displays the maximal power which ranges in 0.0W 〜 9999W. LCD on third line displays character of "Hi" without other figures.
Mode 7: Time/Price Display LCD on first line displays the same as Mode 1 dones. LCD on third line displays the cost which ranges in O.OOCOST/KWH 〜 99.99COST/KWH without other figures.
Overload Display: When the power socket connects the load over 3680W, LCD on second line displays the''OVERLOAD[ with booming noise to warn the users,( 1918928,selectable choice)
Supplemental informations:
1: Except [OVERLOAD[ interface, LCD on first line display time in repitition within 24hours.
2: LCD on first line, second line or third line described in this intruction take section according to two black lines on LCD screen. Here it added for clarified purpose.
3. Mode 7 will directly occur while press down button "cost".
4. [UP"&"Down" are in no function under un-setting mode.
Setting Mode
1. Electricity price setting
After keeping COST button pressed lasting more than 3 seconds(LCD on third line display system defaults price, eg O.OOCOST/KWH ),the rendered content begins moving up and down which means that the device
has entered the setting mode. After that, press FUNCTION for swithing , then press "UP"and "DOWN" button again to set value which ranges in OO.OOCOST/KWH 〜 99.99COST/KWH. After setting all above, press COST to return to Mode7 or it will automatically return to Mode7 without any pressing after setting with data storage.