Hach FT660 sc Manuel D'utilisation De Base page 27

How to clean spills
Chemical exposure hazard. Dispose of chemicals and wastes in
accordance with local, regional and national regulations.
1. Obey all facility safety protocols for spill control.
2. Discard the waste according to applicable regulations.
Troubleshooting
Problem Possible cause
Low (< 1) or negative Head assembly is not
readings correctly installed on the
body of the instrument
Laser failure
PMT/Electronics failure
Errors
When an error occurs:
• The reading on the measurement screen flashes.
• All outputs are held.
• The red status light on the instrument turns on.
To access the current instrument errors, select Diagnostics, [Select
Sensor], Error List.
Q-Pulse Id VM277
20 English
Vendor Manual Hach A090-070427-003 FT660 SC User Manual
C A U T I O N
Resolution
Correctly install the head
assembly on the body of the
instrument. If not, the red
status light will flash.
Contact Technical Support.
Select an error and confirm to identify the cause of the error. Refer to
Table 2.
Error Possible cause
A/D FAILURE A/D conversion failure
LASER FAILURE Laser did not work correctly
and is turned off
FLASH FAILURE Data log and event log not
working
LOW SIGNAL Signal is too low (less than
ERROR 3.0 mNTU)
Warnings
When a warning occurs:
• A warning icon flashes and a message is shown on the bottom of the
measurement screen.
• The red status light on the instrument starts flashing.
Warnings do not affect the operation of menus, relays and outputs.
To access the current instrument warnings, select Diagnostics, [Select
Sensor], Warning List.
Select a warning and confirm to identify the cause of the warning. Refer
to Table 3.
Active 09/09/2013
Table 2 Error list
Resolution
Contact Technical Support.
Make sure that the head
assembly is installed
correctly. If not, the red
status light will flash.
Contact Technical Support.
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