KROHNE OPTISYS SLM 2100 EN - Manual (Page 60)

5
OPERATION
60
OPTISYS SLM 2100
www.krohne.com 03/2014 - 4002737302 - MA OPTISYS SLM 2100 R02 en
Explanation of the error categories
5.8.1 Error category "Device failure" (bold "F")
Letter on display Error category according to: Description Action
NE64 VDI/VDE 2650
and NE107
Bold "F F F F" Failure Device failure Whole device or single component(s)
defective, replacement necessary,
measured values are not valid; mA
output ≤ 3.6 mA or set fault current
(depending on the seriousness of the
fault).
Repair or
replacement
necessary!
F (not bold) - Application
failure
No internal error, but application
error has occurred; device okay, but
measurement not possible.
Application test
or operator action
necessary!
S - Out of
specification
Measurement out of specification;
measurement continues, but
measured values only restrictedly
usable.
Maintenance and
an accurate
check required!
C Check request Passivated Either the device is outside operation
(standby, measured value is fixed or
specified), or the output values are
partially simulated or fixed.
Maintenance
required.
I - - Information, current measurement is
okay and values unrestrictedly valid.
Depends on error
message, see
table in relevant
section.
INFORMATION!
Regard that in case of an error message of the category "F
FF F" the measured values are not valid!
Messages on the display Description Actions
F F F F motor blocked The motor has been blocked three times. Check if sensor and cable can be freely
moved, if so reset error manually and
restart measuring cycle.
F F F F sensor comm error Communication to sensor is permanently
interrupted.
Check if pick up axle board is correctly
seated and the optical path is clean. Error
needs to be reset manually and
measurement can be started again.
F F F F limit switch error Indicating a failure of the sensor limit
switch.
Check if the sensor can move up and down
by using the manual mode. If the sensor
does not reel down open the cable drum
compartment and look if the cable is reeled
up correctly. If the sensor is blocked, try to
pull it down carefully.
F F F F sensor calibration Zero calibration was performed with higher
turbidity than used for the calibration of the
concentration.
Repeat calibration in correct order again
.book Page 60 Wednesday, April 30, 2014 1:39 PM