CB-S / CB-S-UL (E7) 06/2020 page 95/119
After the recommended maintenance interval (one year of operation) a message appears on the control-
ler.
The information message “Service due!” is shown in the text field of
the controller display.
Press the OK button to confirm the message.
After one week of operation, the message reappears.
24.4 Gas inlet fine filter
When the chamber is operating, the incoming gas passes through a fine gas filter (aseptic filter, filtration
efficiency 99.99%, particle size 0.45 µm). The gas fine filter prevents dirt accumulating in the gas inlet
valves and the tubes leading into the inner chamber, which could be in the gas cylinder or in the supply
tubes.
Service personnel authorized by BINDER will check this filter for pollution at each maintenance interval
and replace it, if appropriate, but at least once a year.
24.5 Simple troubleshooting
Defects and shortcomings can compromise the operational safety of the chamber and can lead to risks
and damage to equipment and persons. If there are is a technical fault or shortcoming, take the chamber
out of operation and inform BINDER Service. If you are not sure whether there is a technical fault, pro-
ceed according to the following list. If you cannot clearly identify an error or there is a technical fault,
please contact BINDER Service.
Only qualified service personnel authorized by BINDER must perform repair.
Repaired chambers must comply with the BINDER quality standards.
24.5.1 General
1 Chamber without function.
No power supply.
Check connection to power
supply.
Wrong voltage.
Check power supply for voltage
of 120 V / 230 V.
Nominal temperature exceeded
by 10 °C due to chamber fail-
ure. Over temperature protec-
tive device (class 1) responds
Contact BINDER service.
The miniature fuse for overcur-
rent protection has triggered
(chap. 26.2).
Check chamber fuse and re-
place it if appropriate. If it re-
sponds again, contact BINDER
2
Set-point values are not equili-
brated. Icon “1” is displayed.
Operating mode “Idle mode”
activated.
Deactivate operating mode “Idle
mode” (chap. 9.1)
Alarm message “Door open”.
The outer chamber door is open