Yokogawa DR240 - Manual (Page 79)

3-34 IM DR232-01E
Switching the Power ON/OFF
DR232/DR242
The power switch is a push-button; the power is turned on when pressed once and turned off
when pressed again.
Power switch
Note
• Before turning the power on, check that each unit is properly mounted and the power cord is correctly
connected.
• If nothing appears on the display when the power switch is turned on, turn off the power and check the
following:
• Is the power cord properly connected?
• Is the supply voltage within the range noted on the previous page?
• Is the power fuse blown (see page 13-2)
If the problem still cannot be fixed, there may be an equipment problem; please contact your nearest
sales representative. Addresses may be found on the back cover of the manual.
• The device takes about 30 minutes to warm up.
• The service life of the lithium battery used to save the settings is about 10 years at an ambient
temperature of 23 °C. If the settings cannot be held because the lithium battery has run down, please
contact your nearest sales representative. Addresses may be found on the back cover of the manual.
DS400/DS600
When the “ ” side of the power switch is pressed, the power is turned on and when the “O” side
of the switch is pressed, the power is turned off. When the power is turned on, the status indicator
(see the figure on page 3-30) lights.
Note
• Before turning the power on, check that each unit is properly mounted and the power cord is correctly
connected.
• If the status indicator does not go on when the power switch is turned on, turn off the power and check
the following:
• Is the power cord properly connected?
• Is the supply voltage within the range noted on the previous page?
If the problem still cannot be fixed, there may be an equipment problem; please contact Yokogawa
Engineering Service Corporation (contact details on rear cover) for repair.
• If the status lamp flashes, it means that there is an internal error. Turn off the power switch and check the
same items as for the DR242. If the problem still cannot be fixed, there may be an equipment problem;
please contact your nearest sales representative. Addresses may be found on the back cover of the
manual.
• If the power of a subunit is turned on and off with multiple subunits connected, subunits connected
subsequently to the end from the subunit whose power is turned off will not be recognized temporarily.
• The device takes about 30 minutes to warm up.
3.9 Connecting the Power Cord and Turning the Power ON/OFF