
Code
Error text
K Description
Possible clearance
S018
O
2
sensor failure
F
Check plug connection.
When ok: Call SICK Service.
S019
O
2
adj. factor too
high
F
Perform O
2
adjustment again.
When message is still pending: Call
SICK Service.
S024
No active compo‐
nent
F When “active” checkmarks of all
components are inactive
When current backup available: Load
backup.
Otherwise: Call SICK Service.
S025
Evaluation module
failure
F Evaluation module can not be
started.
When current backup available: Load
backup.
Otherwise: Call SICK Service.
S026
Evaluation mod. file
error
F Files for evaluation module not
created
When current backup available: Load
backup.
Otherwise: Call SICK Service.
S027
No result
F
When current backup available: Load
backup.
Otherwise: Call SICK Service.
Maintenance
S033
Dev. zero point too
high
M Parameters set for measured
component
Check zero gas for pressure and
cleanness.
Perform maintenance on com‐
pressed air conditioning unit.
Perform manual zero point adjust‐
ment twice (menu: 2 Adjustment
→
1 Adjustment
→
1 Zero point adjust‐
ment).
When message occurs again dur‐
ing next automatic zero point adjust‐
ment: Call SICK Service.
S034
Config. I/O mod.
M Configuration error, found module
does not correspond to that of the
nominal configuration
Check IO modules, check plug con‐
nectors and voltage supply, load
backup if necessary.
Otherwise: Call SICK Service.
S035
Ref.energy too low
M
Call SICK Service.
S036
O
2
sensor failure
M
Call SICK Service.
S038
Current invalid
M Analog output: Desired current
not reached.
Analog input: Current outside
valid range.
Check connections on the Analog
module.
S039
Current invalid
M
S040
Flow too high
M
Call SICK Service.
S041
Flow too low
M
When pressure error, clear it first.
Sample gas flow too low and purge/
zero gas flow ok: Check/replace sam‐
pling filter
Sample gas flow and purge/zero gas
flow too low: Call SICK Service.
Purge/zero gas flow too low and
sample gas flow ok: Check all hose
connections. Check zero gas needle
valve setting.
When ok: To be checked by SICK
Service.
S043
IR source weak
M Voltage or current outside toler‐
ance
Call SICK Service.
TROUBLESHOOTING
11
8021889/1D1T/V3-1/2021-09 | SICK
O P E R A T I N G I N S T R U C T I O N S | MCS200HW
55
Subject to change without notice