Megger TM1800, Руководство пользователя

Страница: 53 / 104

CG0757JE ZP-CG01E TM1800 53
6 CABA LOCAL
Open - Close
1]
Use the keyboard to enter the desired value.
The arrow-up and arrow-down button can
be used for quick navigation between the
input fields.
2]
Press the “BACK” button to leave this screen.
Open - Close - Open
1]
Use the keyboard to enter the desired value.
The arrow-up and arrow-down buttons can
be used for quick navigation between the
input fields.
2]
Press the “BACK” button to leave this screen.
Setting the measurement
preferences
1]
In “Breaker View” menu press the “MEAS-
UREMENT PREFERENCES” button to make
trigger settings. The following screen ap-
pears:
Coil current
Pressing the button enables/disables coil current
recording.
Control voltage
Pressing the button enables/disables control voltage
recording.
Sense voltage
Pressing the button enables/disables the sensing
voltage source in the control modules. If checkbox is
marked, the TM1800 will generate a sensing voltage
on the output of the control module. The sense volt-
age is for calculation of coil resistance and auxiliary
contacts in the control circuit. The output power is
very low, no load voltage is about 30 V DC and short
circuit current less then 30 mA, so it can under normal
circumstances not operate a circuit breaker. For sensi-
tive circuits this voltage can be turned off, by unmark-
ing this box.
Note With “Sense voltage” turned off the resist-
ance of coil and auxiliary contacts can’t be
measured and calculated automatically by the
control module.
Settings
1]
In Breaker View/Measurement Preferences
press the “SETTINGS” button to make the
settings. The following screen appears.