F Reaction/Comment 
214  The system is currently being 
maintained with Optima SMT. 
         
215  The analyzer module has an 
internal communication error! 
x  x      Notify service. 
216  The analyzer module has an 
internal program error! 
x  x      Notify service. 
250  The analyzer module could not 
be found. 
x  x          Check plug connection and wiring. 
251  The connection to the analyzer 
module was lost. 
x  x          Check plug connection and wiring. 
252  The EEPROM data of the ana-
lyzer are faulty. 
x  x          Check configuration with TCT. 
253  The communication with the 
analyzer is disrupted, 
x  x          Check plug connection and wiring. 
254  The boot program of the ana-
lyzer module is faulty. Notify 
Service! 
x  x      Notify service. 
255  The program of the analyzer 
module is faulty. Notify Service! 
x  x      Notify service. 
Analyzer modules             
300  No new measured values from 
the analog/digital converter. 
x  x      Notify service. 
301  The measured value exceeds 
the value range of the ana-
log/digital converter. 
x  x          Check measuring gas concentration. Notify service. 
302  The offset drift exceeds the 
half of the range permissible. 
        x      Check analyzer module and sample preparation. Permis-
sible range: 150% of the smallest measuring range in-
stalled. As soon as the drift exceeds these values, notify 
service. 
303  The offset drift exceeds the 
permissible range. 
x  x     
304  The amplification drift exceeds 
the half of the range permissi-
ble. 
        x      Adjust detector displayed manually at the zero point and 
end point. Check analyzer module and sample prepara-
tion. Permissible range: 50% of the sensitivity of the 
detector. As soon as the drift exceeds this value, notify 
service. 
305  The amplification drift exceeds 
the permissible range. 
x  x     
306  The offset drift between two 
adjustments exceeds the per-
missible range. 
        x      These messages are created by the automatic adjust-
ment. Check plausibility of the adjustment. Rectify pos-
sible cause of an implausibility. Adjust detector dis-
played manually at the zero point (no. 306) or at the end 
point (no. 307). Permissible range: 15% of the smallest 
measuring range installed; 6% of the smallest measuring 
range for measurements on plants and systems requir-
ing approval of 27 and 30 BImSchV 
307  The amplification drift between 
two adjustments exceeds the 
permissible range. 
    x   
308  A calculation error occurred 
while calculating the measured 
value. 
x  x      Notify service. 
309  The thermostat works errone-
ously. 
        x      see status message of the relevant temperature 
310  The temperature correction for 
this component was deac-
tivated because the tempera-
ture measured value is invalid. 
        x      see status message of the relevant temperature