Binder CB-S 170 - Co 2

CB-S / CB-S-UL (E7) 06/2020 page 97/119
24.5.3 CO
2
No.
Fault description
Possible cause
Required measures
1
CO
2
set-point values are not
equilibrated. Icon “2” is dis-
played.
CO
2
control is deactivated. Activate CO
2
control (chap. 9.2)
2
Alarm message “CO2 pres-
sure”.
CO
2
cylinder is not connected
correctly.
Correctly connect the gas cylin-
der.
Connected gas cylinder is
closed or empty.
Open or replace gas cylinder.
Gas hose is dirty or obstructed.
Check the tube system for dirt
accumulation or obstruction,
clean or replace it.
Pressure sensor system defec-
tive
Contact BINDER service.
3
CO
2
concentration inside too
low.
Doors not closed.
Close door properly.
Door gaskets defective.
Replace door gaskets.
CO
2
cylinder is not connected
correctly.
Correctly connect the gas cylin-
der.
Connected gas cylinder is
closed or empty.
Open or replace gas cylinder.
Gas hose is dirty or obstructed.
Check the tube system for dirt
accumulation or obstruction,
clean or replace it.
Controller not adjusted.
Calibrate and adjust controller
4
CO
2
concentration inside too
low.
Alarm message “CO2 range”.
Current actual CO
2
value out-
side the tolerance range.
For causes and actions, see
no. 3.
Operation temporarily possible.
Check the tolerance range set-
tings. With other error messag-
es remove the respective
cause.
5
CO
2
concentration inside too
high
Controller defective
Contact BINDER service.
Controller not adjusted.
Calibrate and adjust controller
6
CO
2
concentration inside too
high. Alarm message
“CO2 range”.
Current actual CO
2
value out-
side the tolerance range.
For causes and actions, see
no. 5.
Operation temporarily possible.
Check the tolerance range set-
tings. With other error messag-
es remove the respective
cause.
7
Actual CO
2
value display shows
“ – – – – ”. Alarm message
“CO2 sensor defective”
CO
2
sensor defective.
Turn off the chamber. If appro-
priate, replace sensor (chap.
4.2). Contact BINDER service.
Actual CO
2
value display shows
“ – – – – ”.
CO
2
sensor not connected,
Turn off the chamber. Connect
CO
2
sensor (chap. 4.2.1).
8
Actual value of CO
2
deviates
largely compared with a refer-
ence method.
The pH indicator of the cell
medium changes its normal
color
CO
2
sensor not adjusted.
Calibrate and adjust CO
2
sen-
sor
CO
2
sensor system defective.
Transfer the cultures to another
incubator and contact BINDER
Service.
9
Recovery time (up to 5 vol.-%
CO
2
) after doors were open for
2 minutes is < 2 minutes.
CO
2
sensor system defective. Contact BINDER service.
10
Recovery time (up to 5 vol.-%
CO
2
) after doors were open for
2 minutes is > 10 minutes.
Obstructed gas supply.
Check gas supply (cylinder,
connections, hose system).
Insufficient CO
2
input pressure.
Gas fine filter obstructed.
Contact BINDER service.