How to use steel ruler settlement and how to maintain the instrument
Steel ruler settlement Instructions: When measuring, loosen the locking screw on the back of the bobbin to allow the bobbin to rotate freely, press the power button (the power indicator light is on), put the probe into the catheter, and then take the steel ruler cable to make the probe slow The ground moves down. When the probe touches the magnetic ring in the soil layer, the sounder of the receiving system will emit a continuous beep. At this time, the depth dimension of the steel ruler cable at the nozzle is read and written. Measuring this point bit by bit is called progress reading. It is represented by the letter Ji. When the measuring cable is retracted in the catheter, it can also make sound through the magnetic ring in the soil layer and the sound system of the receiving system. At this time, it is also necessary to read and write the depth dimension of the most measured cable at the mouth of the pipe. The hole measured in this way is called the backhaul reading and is represented by the letter H1. The actual depth of the magnetic rings of the hole in the soil layer is indicated by the letter S1. The calculation formula is: Si = (Ji + Hi) / 2 In the formula: .i one is the number of points measured in a hole, that is, the number of magnetic rings in the soil layer; The actual depth of the Si-i measuring point from the nozzle (mm); The depth of the Ji-i measuring point from the nozzle during the process of reading (mm): The depth of the Hi-i measuring point from the nozzle during the back-travel reading (mm): If the buzzing sound is inaudible when measuring in a relatively noisy environment, the peak indication can be used instead, as long as the selector switch on the instrument panel is turned to voltage, the measurement method is the same as above, and the measurement accuracy at this time is measured by the sounder The accuracy is the same. Users must pay attention to when using: a) When the probe enters the magnetic ring in the soil layer again, the sounder will immediately emit a sound or the voltmeter indicates it. At this time, the measurement cable should be slowly retracted and put in order to carefully find the exact position of the pronunciation or the indication moment Then read the depth of the point from the nozzle. b) The accuracy of the reading depends on how to determine the starting position of the pronunciation or instruction. The accuracy of the measurement is related to the proficiency of the operator, so it should be practiced and operated repeatedly. c) When the settlement probe enters each magnetic ring, there are two sounds, but the first sound must be used as the standard reading, that is, the process is the first sound and the return trip is also the first sound. maintain: l Due to the limited battery capacity, the power switch should be turned off immediately after the measurement is completed, don't forget! When replacing the battery, the steel ruler cable must be put down from the reel, and the two M4 on the front panel should be unscrew Self-tapping screws, remove the front panel, you can replace the new battery. 2. After the measurement, the probe and steel cable must be wiped clean, and the steel cable should be neatly wrapped around the reel, and then placed in the cabinet. 3. Sealing is required during the operation of the probe, and disassembly is absolutely prohibited to avoid damage. 4. When the probe is found to be faulty, it should be sent to our factory for repair immediately. 5. Do not bend the measuring cable, especially near the end of the probe to avoid damage and breakage. 6. The probe should be handled and placed gently, and avoid violent vibration. Receipt and storage: 1. From the date of shipment, within one year, if the user observes the conditions of transportation, storage and use, if the product quality is found to be lower than the technical conditions, our factory is responsible for repair or replacement (To be repaired). 2. The instrument should be stored in a dry and ventilated room with a temperature of -10 ℃ -40 ℃ and a humidity of not more than 80% without corrosive gases. Installation method of layered settlement of soil: 1. Drilling with φ108 drill bit, in order to put the pipe smoothly to the end, it generally needs to be deeper than the installation depth. Its principle is 10 meters + 0.5 meters, 20 meters + 1 meter, and so on. 2. After clearing the hole, do not lift the drill immediately after the drill bit reaches the predetermined position. You need to pour the pump down into the clear water until the mud water becomes clear mixed water, then lift the drill and install it. 3. An external joint is used for the connection of the installation pipe, and clean water is injected into the pipe while lowering the pipe (when the pipe has too much buoyancy). 4. For the installation of the magnetic ring, put the magnetic ring and the positioning ring on each section of the tube according to the design requirements, and fix the positioning ring with screws, and then insert the tube into the outer joint, tighten the screws, so that the edge is lowered to the design depth stop. 5. If the separation distance of the magnetic ring is not positive 2 meters, it can be achieved by adjusting the length of the tube, or it can be solved by the positioning ring on the tube. The distance must meet its design requirements. 6. After the settling tube is placed to the design requirements, it can be backfilled by closing the lid. The backfill material is dry fine soil or medium coarse sand on site. The backfill speed must not be too fast to avoid backfilling after clogging, thereby forming voids. It is best to check again after an interval of one or two days. Just fill it up, and add protective measures around the tube before you can rest assured to measure later. Hospital Chair,Hospital Infusion Chair,Patient Infusion Chair,Hospital Nursing Chair Jiangmen Jia Mei Medical Products Co.,Ltd. , https://www.jmmedicalsupplier.com