Doc. CEI12166
Rev. 1
Pag. 22 Of 47
It is possible to label the transducer, to select the unit of measurement, to select the pressure at 0 V, and
the V/pressure transducer constant. With these parameters, the screen will display the actual pressure.
- The “Current clamp” selection is for the measurement of current by means of a clip-on transformer,
that outputs voltage with a coefficient that can be programmed in the following window.
2.3.5.7 Micro-Ohmmeter test
This selection can be accessed only if the option is available: pressing it, the following window is
displayed.
The “Static resistance test” selection is performed connecting CBA1000 to the test sample and
measuring its resistance. Test samples can be: joints, main contacts and so on. Main contacts resistance
is measured in the closed position.
With the “Dynamic resistance test” selection it is possible to record the main contact resistance during
the CB close. The CB is open prior to test start: CBA1000 issues the Close command; as the contact
closes, the test current passes through the contact, and CBA1000 measures the contact resistance
variations during the close movement. Test result is the resistance profile during close: the contact
resistance value is less accurate than the measurement above, but the additional information is the
actual behaviour of the contact as it closes.
- With the “Static resistance test” selection, the following window is displayed.
