Calibration and troubleshooting of electronic balances First, the heart of a gravity balance electromagnetic sensor ( usually a total of 618 ) is thin and thin, easily damaged, and the higher the accuracy of the balance, the thinner the gravity sensor, so it should be special in use Be careful to protect the balance from loading objects that exceed the weighing range. Never press the weighing pan or lower the balance to avoid damaging the balance or changing the performance of the gravity sensor. It is a heavier object. Generally, it should not be removed for more than 30 seconds. The weighing plate and its tray should be removed when transporting. Second, the electronic balance of gravity actually measure the Earth's gravitational force of the object on the instrument placed on the weighing pan, and the gravitational acceleration due to the Earth's diameter different latitudes, around (9-9.8m2 / s) are not the same, using The accuracy of the local weighing depends on whether the correct calibration and the accuracy of the calibration weight are performed. If you find that the balance is corrected in Guangzhou, there is a certain error in the local weighing. This does not mean that there is any fault in the balance. The method described in each model of the electronic balance can be accurately weighed by calibrating with the standard weight approved by the metrology department. Third, the correction mechanism is generally divided into three categories : Fully automatic calibration : internal standard weight and motor servo mechanism, just press one function key to complete the calibration in tens of seconds. Generally, the new type of electronic one-tenth of the precision is more than the automatic correction mechanism. ; Semi-automatic calibration : Built-in standard weight but no servo mechanism, after entering the calibration procedure, you need to manually load and remove the calibration code ; Manual calibration : There is no standard weight in the balance and the servo mechanism needs to manually enter the calibration procedure and add the standard weight for calibration. The balance with low accuracy is manually corrected. 4. The electronic balance is a precision electronic measuring instrument that is highly sensitive to the environment. It should be handled with care. The installation table should have no obvious vibration. Do not place it in the air conditioning port. If these conditions are not met, some improvement measures should be taken, such as changing the use. Place the windproof ink at the same time, and pay attention to adjust the bottom corner screw to center the bubble of the level indicator. The unbalanced level of the balance is also one of the reasons for the weighing error. FA type series electronic balance common faults and troubleshooting 1. Fault phenomenon : the balance self-test cannot pass, and the following fault code appears. "ECI " : CPU damage "EC2 " : keyboard error "EC3 " : Balance data loss "EC4 " : sampling module not started Cause : The fatal error caused the balance to not work properly Solution : send the balance to repair 2. Fault phenomenon : the balance shows " L" Reasons : 1) There is no open weighing pan; 2) There is foreign matter under the weighing pan; 3) The airflow ink is in contact with the weighing pan. Solution : 1) Place the weighing pan on the weighing pan; 2) Gently pick up the weighing pan to check if there is any foreign matter under the weighing pan and remove the foreign object; 3) Gently turn the weighing pan or airflow cover to see if there is any contact. The phenomenon of adjusting the position of the airflow cover. 3. Fault phenomenon : load balance shows " H" Reasons : 1) The loading object on the weighing pan is too heavy and exceeds the nearest range; 2) The balance has been calibrated with an anvil code or other object smaller than the calibration anvil code value, resulting in the weight displayed in the normal range being overweight. Solution : 1) Weigh only within the range; 2) Recalibrate with the correct anvil code. 4. Symptom: booting display "L", the display load "H" or the phone is switched "H", the display load "L" Cause : The balance is outside the temperature environment where work is allowed. Solution : The temperature environment of the balance is usually 20 °C ± 5 °C, the ambient temperature changes by no more than 1 °C per hour , and the sky is placed in the ambient temperature condition. 5. Fault phenomenon : the balance shows “ E1 â€, the display shows overflow, and the displayed value has exceeded Cause : When the piece count or percentage is weighed, the sample value is too small. Solution: 1) when piece "E1", the object on the pan is first removed, re-select the number of pieces of the sample, the sample 10 is selected from the integers 2-fold, 5-fold, 10-fold as a sample and the like. Write down the multiple of the current sample and read the displayed value multiplied by a multiple of the reading. 6. Fault phenomenon : The display data has changed normally with the change of weighing, and suddenly it will not change. Cause : An object larger than the corrected anvil code value was used for the balance calibration, so that the display no longer increases after a value greater than a certain display value. Solution : Recalibrate the balance. 7. Fault phenomenon : no display appears after pressing the "i/o" button Causes : 1) The power is not plugged in ; 2) The fuse is blown; 2) The keyboard is faulty and the button is stuck. Solution : 1) Plug in the power supply; 2) Replace the fuse. Unplug the power cord, use a small screwdriver to pry the fuse box at the balance socket and replace the fuse. 3) Loosen the button fixing screw to adjust the button position. 8. Fault phenomenon : After the power is turned on, only “.†is displayed in the lower left corner of the display, and there is no other display. It shows that the balance weighing environment is unstable and the balance cannot always get a stable weighing. Reasons : 1) The glass of the balance door is not closed; 2) There are foreign objects under or around the weighing pan; 3) The airflow ink is not well opened , causing the weighing pan to rub against the airflow ink; 4) There is strong vibration and airflow around the balance; 5) The weighing environment selection and weighing range of the balance are not properly set. Solution : 1) Close the door glass; 2) Please gently pick up the weighing pan to see if there is any foreign matter, pay special attention to whether there are small foreign objects; 3) Slowly rotate the airflow ink or the weighing pan to observe whether there is any rubbing phenomenon; 4) Choose a sturdy mounting surface, no vibration, and a small airflow environment; 5) Reset the balance weighing environment settings. Calibration and troubleshooting of electronic balances Jaw Crushers are used to reduce the size of many different types of materials in many applications. as a double-toggle Jaw Crusher. ... These combined motions compress and push the material through the crushing chamber at a predetermined size. Double Toggle Jaw Crusher,Small Jaw Crusher,Jaw Stone Crusher,Small Jaw Crush Machine Shenyang Sanland Mining Equipment Manufacture Co., Ltd. , https://www.sanlandcrusher.com
Crushing raw material takes its toll on your equipment. For every ounce of product that passes through your machinery, the lifespan of your equipment steadily decreases. This leads to decreased output and mounting maintenance and repair costs. We have created a solution, built on more than a hundred year`s worth of jaw-crusher experience.