One, the function of the introduction
1, can check the short-circuit point location
Line tester can be short-circuited to the specific location of the equipment point, and can be read on the tester the ID number of the equipment point, through the ID number you can know it is installed location. It is also possible to use the line tester to light up the device with an indicator light, which also makes it easier to find the device point location.
2, can check the location of the open point
Can be reported open to show that the return line is a loop connection, the need for two sets of return lines are connected to the line tester. It can read the device points from both ends respectively. If there is an open point, the line tester will report a fault and indicate the location of the open point.
3, can locate the location of the grounding point
If there is a ground fault on the return line, regardless of the branch or loop connection, can report a ground fault, in the line tester to check the grounding point of the fault, you need to ground the line tester, or else you can not check the grounding point. The same will be the circuit line to the tester, it will give the specific location of the grounding point, to be able to locate a certain point of equipment.
4, light up the indicator of the field equipment
When the circuit line is connected to the line tester, read all the equipment in the circuit, the cursor will point to a device point, the indicator of the device point will be lit. This is very useful for locating devices in the field.
5. Calculate the resistance value between the circuit lines, and line-to-ground resistance value
After the line meter reads the equipment points, it will give the resistance value between the lines and line-to-ground resistance value. This resistance value can be used as a reference to determine whether the line is normal or not.
6, the line tester is connected to the computer side, can display the whole circuit line equipment connection
Siemens has developed a client software, the software is connected to the line tester, can display the whole circuit topology, that is, display the whole circuit equipment connection.
For more information, please check the public number "Tongyi Fire Service"
.