test procedures and evalution
Meter Types, Test Procedures and Test Plans
Defining meter types with their respective parameters simplifies both manual and automatic tests. All the characteristic quantities and parameters required for the test procedure and for evaluation are saved in the meter type. Individual tests can be created using the test editor. Standard tests, such as a no-load test and an accuracy test, have been pre-defined. These individual tests can be combined to form complete device or type tests. The order of individual tests can be predefined in test plans for the automatic mode. These test plans can then be repeated any number of times under identical test conditions, making it easy to automate entire test procedures.
Test Performance, Result Display and Evaluation
METES systems have a manual and an automatic mode for carrying out manual and automatic tests on all single and three-phase electronic and Ferraris electricity meters.
All the quantities available in the system can be displayed online both during and independently of tests. The measured quantities can either be displayed numerically or in the form of graphical displays, such as vector diagrams or bar graphs, in one or more display windows. Using the vector diagram to examine the voltages and currents makes it possible to check the correct connection of a meter or the connection of current and voltage transducers, for example.
The reaction of the test object is evaluated during the course of the test. An indication is given for each test point as to whether or not the result lies within the configured tolerance range. The measured error is displayed directly in numerical or graphical form (error curve).
After a test, all the results are displayed clearly in a table. Each line of the table contains the information on an individual test point.