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18
DP21-SAL
Fig. 9
1
Turning Power ON/OFF
Turning power ON
1) Set the main switch of the camera head to “
I
” (ON).
2) Press the main switch @ of the control box D21-CB to turn it ON.
Turning power OFF
Press the main switch ² of the control box D21-CB to turn it OFF.
}If the main switch is kept pressed (for about 4 seconds or more) when
the power is OFF, the control box D21-CB will be forcefully shut down,
which may make the MENU settings and scale function unable to be
stored in memory. So be careful.
}With the DP21/DP26 system, a main switch is provided on the hand
switch D21-HS, (called the standby switch), control box D21-CB and cam-
era head. The following table shows what happens when each of these
main switches are set to OFF.
Control box
D21-CB
Shuts down the system (approx. 30 sec. for startup and 10 sec. for shutdown).
Once the system is shut down, it cannot be started up from the hand switch D21-HS. The STANDBY
LED turns off when the system is shut down.
Hand switch
D21-HS
Set the system to standby mode (approx. 10 sec. for startup and. 3 sec. for sleep).
The STANDBY LED blinks in standby mode.
Camera head
DP21/DP26
Switches only the camera OFF. The control box D21-CB and hand switch D21-HS are left ON.
Usually, this switch does not need to be set to “ ” (OFF).
The pilot LED on the camera head lights when it is ON.
}With the standalone system, turning the control box D21-CB or hand switch D21-HS OFF automatically turns the camera
head OFF, so it is not required to operate the main switch of the camera head. It is recommended to leave the camera
head permanently ON.
}To protect the system, it is recommended to use the main switch of the control box D21-CB to shut down the system
whenever possible.
}If the control box D21-CB system is used for a long period without shutting it down, the system may sometimes resets and
restarts automatically (the restart time is about 30 seconds). To protect the system, it is recommended to shut down the
system periodically at an interval of about once a week.
Fig. 10
1
2
If the camera head is switched OFF during use
If the camera head is turned OFF during use of the DP21/DP26 by accidentally setting the main switch to OFF or disconnecting
the camera cable, the system detects that the camera head is not connected and displays an error message. If this happens,
press the main switch of the control box D21-CB to shut down the system. After this, either set the main switch of the camera
head to ON or reconnect the camera cable and then press the main switch of the control box D21-CB to restart the system.
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