Miyachi MG3D - Measuring Current and Voltage

Operating Instructions MG3 Digital
How to …?
76609409EN-BA-MG3D-V1_6.docx 32/82 2010-08-02
5.2 Measuring current and voltage
Procedure
• Select button MENU with the
knob/pushbutton combination and depress
button.
• Screen SETTINGS opens.
• Select button WELDING with the
knob/pushbutton combination and depress
button.
• Screen WELDING opens.
You have following setting options:
CHANNEL 1
Here you can select the measuring channel
1 or 2) that needs to be configured.
FILTER
For isolating disturbances, you can
enable/disable a low-pass filter (frequency
range 0.1…25 kHz). To enable this
function, you need to select the box beside
the word FILTER with the knob/pushbutton
combination and check the box.
Recommended setting for inverter
controller: 1/5 of inverter frequency.
1 kHz inverter Æ 200 Hz
20 kHz inverter Æ 4 kHz
MEASURE MODE
You can select between:
- Coil (standard) or
- Shunt (See section 5.3.)
In addition, you need to state the coil
amplification factor (x1, x10). Please read
the amplification factor from the coil label.