MM-400A
8. Operation Screens
8-83
(11) Function keys
MENU: Touching this displays the MENU screen.
NEXT: Touching this displays the BASIC SETUP (3) screen.
PREV: Touching this displays the BASIC SETUP (1) screen.
l-3. BASIC SETUP (3) Screen
(1) CURRENT TRIGGER LEVEL
The sensitivity increases as you increase the value. Excessively increasing the
sensitivity may cause malfunction. If set to around 99, the current trigger may
not be complete. At the time, decrease the value.
(2) TOROIDAL COIL
Set as follows depending on the type of toroidal coil connected:
When 1x sensitivity coil is used: 1
When 10x sensitivity coil is used: 10
(3) CALCULATION
Select original or ISO17657-compliant to set the calculation system of RMS.
Refer to (Note 1) Difference between the original measurement mode and the
ISO17657-compliant measurement mode for RMS calculation in “c. VIEW
Screen.”
(4) CURRENT SENSOR
Select a toroidal coil or a shunt resistor.
(Note) Even when SHUNT RESISTOR is selected, a toroidal coil is required to
be connected for a current trigger.
(5) SHUNT RESISTOR
Select a conversion coefficient of shunt resistor according to the measurement
current. Available only for the force/displacement-equipped specification.
• 25 to 500A: 50 mV / 0.500 kA or 100 mV / 0.500 kA
• 50 to 1000A: 50 mV / 1.000 kA or 100 mV / 1.000 kA
(Note) The position where a shunt resistor is mounted should be 50 V or less.
(6) Function keys
MENU: Touching this displays the MENU screen.
PREV: Touching this displays the BASIC SETUP (2) screen.
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