Instrument repair man arms you with the necessary

The abnormal situation instrument (petrochemical production Instructions on the high side, low, do not change, is not stable, etc. ) , itself contains two factors: one is the technological factors; Second, instrument factor, because the instrument ( Testing environment) A link failure cause indicates a do not tally with the actual process parameters. Instrument maintenance personnel, therefore, to improve the fault judgment, to be familiar with instrument principle, structure, performance features, which can help instrument maintenance personnel development train of thought, help to analyze and judge fault phenomenon. The instrument maintenance in the process, we will use which tool? Small instrument workshop tools list, 1. Screw with a screwdriver is also called the screwdriver, screwdriver, etc. Head shape for a glyph and cross is two kinds of commonly used with a screwdriver. A blade screwdriver to tighten or to remove with a slotted screw, phillips screwdriver or remove with cross slot does for the fastening screw. Use note: according to the size of the screws to choose appropriate specifications of the screwdriver, cannot be used as a screwdriver to avoid damage to tools or screw. When charged, the hand do not touch metal rod of screwdriver, so as to avoid electric shock accidents. To prevent touching the body of the metal rod or adjacent charged body, metal bar should be set on insulating pipe. 2. Wire clamp wire clamp, also known as vise, vises, as shown. Wire clamp is a kind of used for clamping, fixed or torsion, bending, cutting metal silk thread processing of hand tools. Combination pliers with insulated handles, general of the specifications of the wire clamp has three kinds of 150 mm, 175 mm and 200 mm, insulating sheath voltage is 500 v, so only suitable for low voltage electric equipment. Use note: before using, check whether the wire clamp insulation is good, so as not to cause accident getting an electric shock when charged homework. Charged shear conductor may, at the time of using edge shearing different potentials of the two wires at the same time, Such as phase line and zero line, phase line to line, etc. ) To avoid a short circuit accident. 3. Long nose pliers, pointed nose pliers head nozzle, suitable for narrow work space or charged low voltage electrical equipment operation. Long nose pliers can be used to cut small wire. Can be used to gauge wire connector production or maintenance, use agile and convenient. When choosing long nose pliers, should choose acid with insulated handle plastic casing, pressure for more than 500 v. Long nose pliers of the specifications of the 130 mm, 160 mm, 180 mm and 200 mm. 4. Wire stripping pliers wire stripping pliers is used for exploitation of small diameter wire insulation special tools, its appearance as shown. Its handle is insulated, withstand voltage of 500 v. The commonly used, which has two kinds of manual and automatic. Automatic: according to the wire size adaptive metal wires, which does not hurt the internal conductor; And stripping length can be adjusted. 5. Oblique cutting pliers pliers is one of commonly used pliers repair, the head flat inclined, aka pliers, mainly used for cutting wire, components of excess lead, also commonly used to replace the scissors to cut the insulation sleeve, nylon cable card, etc. The hilt is iron handle and insulating pipe sleeve. Commonly used diagonal cutting pliers, the insulated handle pressure shall be the more than 1000 v. 6. Electrician electrical knife as shown. Suitable for cutting wire insulation sheath in assembly maintenance work, as well as cutting wood and cut the rope, etc. The electrician knife according to the size of the blade can be divided into the large size (the size of the 112mm) And small ( 88mm) Two kinds. Use note: shall not be used for live working, in order to avoid electric shock. Should cut blade out cut and avoid hurt fingers. When cutting cutting wire insulation, should make the knife surface and wire into smaller acute Angle, so as not to cut wire. After use, then the blade folding into the handle. 7. Adjustable spanner adjustable spanner is also called active hammer, is used to tighten and nut a kind of special tools. Adjustable wrench is composed of head and handle, the head of activity level the lip, pull mouth, stay lips, worm gear and shaft pin, as shown. Turn worm gear can adjust the opening size. Use note: adjustable wrench is inverted, so as not to damage the adjustable plate lip. Do not use a torque rod extension handles to increase the screw torque. Shall not be used as a lever and hammer.