Hach SC4200c, User Manual

Page: 30 / 36

4. When the update is complete, remove the USB flash drive.
Note: The USB icon in the front panel flashes to show data transmission. Do not remove the USB flash drive
until the light flashing stops.
5. Close the USB cover.
Connect a USB flash drive (optional)
W A R N I N G
Explosion hazard. This manual is only for installation of the unit in a non-hazardous location. For
installation of the unit in hazardous locations, use only the instructions and approved control drawing
provided in the hazardous location installation manual.
If necessary for data download or firmware update, connect a USB flash drive to the front panel in
the controller. Refer to
Figure 17 . After the USB flash drive is removed, close the slot cover and
tighten the cover screws. Tighten the cover screws with a maximum torque of 1.4 Nm (12.4 in./lb).
Figure 17 USB flash drive connection
Set the SC sensors on hold
Use the instrument keypad to set connected SC sensors to hold mode during manual operation or
maintenance tasks.
1. Push the applicable channel button for 3 seconds.
The sensor status LED changes to orange.
2. Push the channel button again to set the SC sensor back to operation.
Maintenance
W A R N I N G
Explosion hazard. This manual is only for installation of the unit in a non-hazardous location. For
installation of the unit in hazardous locations, use only the instructions and approved control drawing
provided in the hazardous location installation manual.
C A U T I O N
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
28 English