Hach sc200 Manuel D'utilisation De Base page 21

Problem Resolution
Make sure an appropriate folder is created by
installing the SD card in the sc200. An update
folder will automatically be created.
Install the SD card on a PC and make sure the
software files are located in the appropriate
Controller cannot find software
update folder.
updates on the SD card.
If the same SD card is used with multiple
controllers, each controller will have a separate
folder on the system. Make sure the software
updates are in the folder dedicated to the
controller in use.
Adjust the display contrast
Display is lit but shows no Make sure protective film has been removed
characters or characters are faint from display.
or blurry.
Clean the outside of the controller, including
the display screen.
Make sure the AC power connections are
properly terminated in the controller.
Controller will not power up, or
Make sure the power strip, line power, wall plug
powers up intermittently
are all properly plugged in.
Contact Hach Technical Support
Make sure the module is properly installed.
Make sure the module selector switch is set to
the proper number.
Network or sensor module not
Remove sensor module and install the module
recognized
into the second analog slot. Apply power to the
controller and allow the controller to perform a
device scan.
Contact Hach Technical Support.
Problem Resolution
If the sensor is an analog sensor and a
corresponding module is installed in the
controller, refer to the instructions supplied with
the Network or Sensor Module.
Make sure the digital connector wiring harness
is seated on the inside of the door assembly
and that the wiring harness is not damaged.
If the digital sensor is connected to the
controller with a digital termination box, user
supplied junction box, digital extension cables,
Sensor not recognized or a user-supplied extension cable, connect
the sensor directly to the controller and perform
a device scan. If the controller recognizes the
sensor, check that all the wiring in the junction
boxes or extension cables is correct.
Make sure that only two sensors are installed
in the controller. Although two analog module
ports are available, if a digital sensor and two
analog modules are installed, only two of the
three devices will be seen by the controller.
Contact Hach Technical Support
Perform a Device Scan from the Test/
Device Missing error message
Maintenance menu.
appears
Power cycle the controller
English 21