Guide and roll off the production line to lead the open resistance tester in earthing

Feb 16th, 2012

Brand: China’s peak

Name: Guide and roll off the production line to lead the open resistance tester in earthing

Type: ZFDT-III

About products:

Instrument this adopt direct current flow while being permanent power supply power, adopt Line four principle of measurement of law get rid of, test the intersection of line and the intersection of resistance and impact on test result effectively, and can get and measure one milliohm of resistance data of return circuit directly, and the instrument selects the latest high precision for use and measures the circuit, strong

The products are detailed:

First, foreword Electric earthing of apparatus guide roll off the production line and the intersection of ground and the intersection of connection and part of network, electric the intersection of apparatus and basic assurance of safe operation. Earthing guide roll off the production line electric apparatus and the intersection of ground and the intersection of connection and part of network, in to run in the course for a long time electric apparatus, the junction may be influenced by factors such as the tide,etc., present the corrosion of joint, even rupture etc., lead to the fact that guides and rolls off the production line to connect some resistance with ground network to increase in earthing, thus can’t meet the electric rules requirement, make the apparatus have hidden dangers in operation. Will cause the lost territory of the apparatus to run when being serious. Our company overcomes high, a series of defect of low grade of accuracy of tedious, working intensity of method of testing that the like product of power industry exists at present, draw relevant advantage of instrument, speciality develop electric the intersection of apparatus and earthing guide and roll off the production line to lead the coherent tester, instrument this adopt direct current flow while being permanent power supply power, adopt Line four principle of measurement of law get rid of, test the intersection of line and the intersection of resistance and impact on test result effectively, and can get and measure one milliohm of resistance data of return circuit directly, and the instrument selects the latest high precision for use and measures the circuit, strong to interfere with ability, the measurement easy to operate is fast, accurate and reliable. Second, main technical parameter 1, measure the content: It is electric if you can’t guide earthing apparatus, last resistances coherent (m&Omega) . 2,Measure the range: 0. ~1999. 9mΩ Precision is 0.2 point 2 grades. ~199. 99Ω Precision 0.2 point 3 grades, measurement electric current: DC 1A,/20A 4, measure radius: 50m5, instrument appearance: Appearance size 300 220 150 Weight 5. 5Kg6, display mode: 128×64 liquid crystal reveals 7, ambient temperature: -From 10 ℃ to 60 ℃8, relative humidity: Not greater than 90% 9, working power: External 50HZ10, AC220V of power, shed line wave coefficient of the source while being permanent: Not greater than 0. 5% 11, take battery and printer but apolegamy three, instrument panel structural sketch map four, manufacturer’s instruction 1. Find out first the electric apparatus connects good guiding and rolling off the production line with ground network as the datum point. (can find out the datum point by measuring the ground network earth resistance method) 2. Worthy of, measure line instrument ‘ Stub) Connect with datum point, another measurement line is linked with some examined. 3. The instrument of the key begins to test, the loud instrument of the buzzer reveals that tests that is over to press testing. 4. The instrument exceeds Cheng — Buzzer loud revealing, exceeding five, notes 1, measuring accuracy for raise Cheng, please try hard to use the standard line that the instrument mix. But also deal with the datum point and surface lighted examined first before measuring. 2,The instrument should pay attention to dampproofly and resisting shock in the course of preserving, transporting, using. Guide the parameter measurement of the characteristic of rolling off the production line and recommend leading in earthing 1. Theme content and applicable scope have originally led and stipulated the earthing parameter measurement method of the characteristic of guiding and rolling off the production line of the earthing device and reduced or dispelled some factors to measuring course and result Method to influence. Originally lead and suitable for guiding the measurement of characteristic parameter rolling off the production line with earthing earthing devices such as the power plant, transformer substation, microwave tower,etc.. 2,Earthing guide roll off the production line, lead coherent the intersection of measurement and 2.1 earthing, guide, roll off the production line, lead coherent measurement with measure the intersection of resistance and value at the earth lead, mean that guides the test voltage that downs on the line and passes the ratio flowing into test electric current in the ground on the earth lead in earthing. Namely: Rg=Ug/I2. 2 the intersection of measurement and method find out, bind guiding, rolling off the production line, ordering with network as the intersection of basis and E qualified first in the intersection of ground and network ‘ Can find out the datum point E by method to examine earth resistance) . Adopt and lead and lead to 4 meters of measuring apparatuses ‘ Mark and mix) Connect the datum point E to click, use line of 32 meters (mark and mix) Take over earthing the adjacent apparatus of purpose and guide and roll off the production line to carry on measurement, make and is examined the body and body of basis and made up the return circuit by the ground network, thus achieve the goal of measuring. (can’t test in earthing the same apparatus guide and roll off the production line) 3 . Influence earthing guide and roll off the production line and lead put through factor and elimination method 3 to measure. The line that an instrument allocates is marked and reserved while producing the instrument, can’t adopt and has not made standard line to substitute, must misunderstand to substitute. 3. 2 is in order to comparatively receive the accurate resistance number value, should handle the contact surface lighted examined well at the time of measurement. Avoid that it influences the surveying value to exposed to the resistance. 3. 3 schools and zero: Because of difference to measure scene, should the intersection of measurement and line at the plate let go of, draw, go on, short out zero school direct wind the line first measure, if bleach zero, can use and return to zero zero knob schools. 4,Use the attentive matters 4. Should be selecting some earth electric equipment more to lead the coherent measuring apparatus as the datum point to roll off the production line to guide in a earthing, voltage transformer, the intersection of Longmen and shelf,etc., so as, go on between adjacent latest two electric equipment and then for instance, act as and discover the problems in order to distinguish defective, but is guiding earthing the electric equipment of third that roll off the production line and is near and guiding lower space measurement two times originally respectively. The measurement should be compared with historical data or compared with other measurements each other, confirm that digs and starts to check through the comprehensive analysis and judgement. 4. 2 examine into earthing, guide, roll off the production line and test junction of wiring, should use the file file to lose the rustproof paint, the glossy metal emerges. 4. When 3 instruments use the battery to supply power, must be full of electricity before using, and checked and owed and pressed the indicator lamp. 4. 4 instrument should buy measuring lining under the emotional condition of non-electric power marking before the measurement ‘ And unlock and draw the measurement line winding the line on the plate straight) Pay and short out check-up. 4. 5 instruments need to preheat for one minute before using. 4. 6 all the intersection of test and person go on this measurement, should observe relevant regulations of the scene consciously. 5,Guide and roll off the production line to lead the open state to consult proposing in earthing Lead the open resistance

150mΩ

500mΩ

State

Good

Unusual

Unusual seriously

Seven. Attachment 1 of the instrument. 1 host computer 2. Test 1 line of 45 meters of line, cable 1 3 for 1 line of 6 meters. The manual, the number of the certificate of quality is one respectively If the instrument breaks down, please contact our company in time in the course of using, any unit or individual does not get the permission of our company and can’t dismantle without permission.

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