3-11
IM 701210-05E
Making Preparations for Measurements
3
Turning ON/OFF the Power Switch
Items to Be Checked before Turning ON the Power
• The instrument is properly installed.: See section 3.2, “Installing the Instrument.”
• The power cord is properly connected.: See section 3.4, “Connecting the Power
Supply.”
Turning ON/OFF the Power Switch
Pressing the power switch located on the left side panel to the “ON(|)” side, turns the
power ON. Pressing it to the “OFF(O)” side turns the power OFF.
Turning ON/OFF the DC Power (/DC)
Items to Be Checked before Turning ON the Power
• The instrument is properly installed.: See section 3.2, "Installing the Instrument."
• The power cord is properly connected.: See section 3.4, "Connecting the Power
Supply."
Turning ON/OFF the Power Switch
Pressing the power switch located on the left side panel to the "ON(|)" side, turns the
power ON. Pressing it to the "OFF(O)" side turns the power OFF.
Note
If AC power is supplied and the main power switch to the AC power is ON, AC power is used.
Status Display of the DC Power Supply
The power supply status is indicated on the LED on the left side panel.
AC LED
LED Status Description
Illuminated in green Operating on AC power
DC LED
LED Status Description
Illuminated in green Operating on DC power (AC power is not connected)
Operating on AC power, and the DC supply voltage is within the operating
range (10 to 18 VDC)
Illuminated in red Operating on DC power, and the DC supply voltage is outside the
operating range
Illuminated in orange DC power is turning ON/OFF repeatedly (internal protection circuit is
tripping)
Power is not supplied in this condition. This status is automatically cleared
after 10 to 20 seconds.
Illuminated in red Internal circuit operation failure. Repair is necessary.
Off Operating on AC power, and the DC supply voltage is within the operating
range (10 to 18 VDC) or the DC power is not supplied
3.4 Connecting the Power Supply
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