The One Step Multi-Drug Screen Test Dip Card (Urine) Package Insert is a urine-based drug test for multiple drugs of abuse ranging from simple immunoassay tests to complex analytical procedures.
The speed and sensitivity of immunoassays make it the most widely accepted method of urine testing for multiple drugs of abuse.The One Step Multi-Drug Screen Test Dip Card (Urine) is a lateral flow chromatographic immunoassay for the qualitative detection of multiple drugs, drug metabolites and alcohol at the following cut-off concentrations in urine.
drug test kit,home drug test kit,home drug testing kits,drug testing kits,home drug test kits Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yongyuemeds.com
Three screw pump use and maintenance and fault repair
For intermittent operation of high pressure and low viscosity, poor lubrication media or similar medium, the actual life of three screw pump will be shortened. We recommend to check every once in a while, and its working conditions are within the specified range. 1. Start-up 1) Check all pipe flanges before start-up, tight fitting, tight tightness. 2) Turn the coupling to check whether the rotation of the three-screw pump is flexible. If there are other problems such as jamming, remove the pump. 3) The first start should be unscrewed safety valve refueling screw plug or remove the cover, to the three screw pump fluid injection and hand counterclockwise rotation of the coupling to ensure that the friction pairs have sufficient lubrication. 4) All the valves in the suction and discharge lines should be opened before starting, and it is forbidden to start the valve. Check motor rotation is correct. 5) After the preparation is completed, can be connected to the power, the test pump, if no abnormal start directly. 2. MAINTENANCE 1) If the sound of triple screw pump and motor is abnormal (or the current meter pointer rises rapidly), stop immediately to find out the cause. 2) The outlet pressure must not exceed the pressure shown on the pump's nameplate. 3) Safety valve has been adjusted before production, can not be arbitrarily mobilized. 4) If the pipeline system failure, a safe return should stop immediately troubleshooting. General safety valve reflux time shall not exceed three minutes. If the pump is too long, the pulse wave generated by the returning fluid will cause the pump to vibrate and even cause the pump to "bite". 5) drip leakage at the shaft seal is a normal phenomenon, such as oil leakage greater than 10 ml / hour, should stop troubleshooting or replace the new seal components. 6) In the operation of the motor control circuit, there should be overload protection components. Such as the three screw pump "killed", should cut off the power automatically to prevent the motor burn out. Three screw pump failure reasons. Card pump causes and treatment 1) Check the filter, such as damage should be repaired. 2) Check whether the three screw pump liquid suction suction tube leakage. 3) Check the seal box to the suction chamber back to the oil hole is blocked. 4) Check the screw and bushing to card signs, trim or replacement. 5) Check whether due to the loss of lubrication medium temperature. 6) Check the three screw pump seal box is leaking oil, oil leaks should change with the mechanical seal or asbestos pad and other pump components. 7) Check the viscosity of the media and matching the three screw pump brand name is consistent. 8) Check the pump inlet and pipe if there is welding slag II. Three screw pump is not self-absorption reasons and treatment 1) Check the three screw pump is filled with suction pipe leak, fill the liquid to repair the pipeline to prevent air leakage. 2) Check the screw on the three screw pump to check the direction of rotation, if wrong, the motor is reversed. 3) Check the inhalation height, such as increasing the diameter, shortening the tube length, with a large filter. 4) Check whether the suction pipe end face oil leakage, from the pipe to do the diagonal tightness of the fastening screw. 5) Install the gas valve on the pump drain, vent the valve, and then shut off. 6) Check valve is stuck. Such as stuck with valve components. Third, three screw pump gas can not be excluded 1) exclude the pipeline need to add a check valve 2) Check the three screw pump to exclude the official road to install gas valve, open the valve deflated, and then closed.