Measurement display

Multi-functional power meters can measure the power parameters in the power grid: Ua, Ub, Uc (phase voltage); Uab, Ubc, Uea (line voltage) Ia, Ib, Ic (current); Pa, Pb, Pc, Ps (active power of each phase and total active power); Qa, Qb, Qc, Qs (reactive power per phase and total reactive power); PFs (total power factor); Ss (total apparent power); FR (frequency) and active (reactive) electric energy, all measured electric energy parameters are stored in the electric energy information table inside the instrument, and these data can be accessed and collected through the digital communication interface of the instrument. However, for different models of instruments, their display contents and methods may be different. Please refer to the specific instructions.

Display mode:

The XS1 control word can be set to program and set the display content under normal state. XS1=0 means automatic cycle display, 1 (three-phase voltage), 2 (three-phase current), 3 (active power, reactive power, power factor), 4 (frequency), 5 (active energy information), 6 (reactive energy information).

Programming operation

Under the programming operation, the instrument provides three types of input setting menu items: SET, INPUT and CONN, and adopts the hierarchical menu structure management mode of LED display: the first row of LED displays the first layer of menu information; The second row of LED displays the second layer of menu information, and the third row of LED provides the third layer of menu information.

The programming operation of the keyboard adopts the operation mode of four keys, that is, move the left and right keys "←" and "→", enter the menu or back up the "MENU" key, and select "OK" to complete the above functions.

MENU: In the case of instrument measurement display, press the keyboard to enter the programming mode. The instrument prompts the password: CODE. After entering the correct password, the instrument can be programmed and set. The initial password of the instrument is 0001 when it leaves the factory; Another function of "MENU" is to play an up-and-down role during programming operation. For example, in the programming mode, press "MENU" under INPT-I.SCL-5, and the instrument will display INPT-I.SCL.

"→", "←", switch the mobile key to switch menu items or increase or decrease the number. For example, pressing "→" under the menu item INPT-T.U-0001 will change to INPT-T.U-0002. Press and hold "→" and "←" to realize the fast increase/decrease function.

"" Confirm after selection and return to the previous menu.

When the programming mode returns to the measurement mode, the instrument will prompt "SAVE-YES", select "MENU" to exit without saving, and select "" to exit without saving.

The menu structure is as follows. Users can select appropriate programming parameters according to the actual situation.

Comparison table of meaning of programmed characters

Use requirements: When all instruments are used for the first time, please check the consistency of the parameters required in the distribution system where the parameters of the instrument are located. For example, AC380V and 200A/5A lines need to be equipped with AC400V and 200A/5A instruments. The user can also reprogram the instrument according to the actual needs. In the same table, for 400A/5A lines, it is only necessary to change the CT transformation ratio "T.I" of the instrument to 80. Generally, the type parameters and factory setting parameters of the instrument are indicated in the label at the back of the instrument.

After the instrument is correctly configured, the instrument shall be correctly wired according to the actual requirements, and the auxiliary power supply, input signal and output signal shall be connected according to the operation instructions in the manual.