Peltier Cooler Control - ABB SCC-S Operator's Manual

Peltier Cooler Control

Cooler Control
State
After start-up
(room temp.)
After lead time end
(approx. 10 min)
Normal operation
Cooler overloaded
Ambient temperature
too low
Changing the Sample Gas Outlet Temperature
Indication Controller LED K1
> 5 °C Off (pump off & status alarm)
 5.5 °C
Lights up yellow (pump is
switched on
switches to "good" state)
3 °C Lights up yellow
> 3,5 °C Lights up yellow
> 5 °C Off (pump off & status alarm)
< 2,5 °C Lights up yellow
< 0 °C Off (pump off & status alarm)
1 if no condensate alarm is present and sample gas pump us switched on
("Pump" push-button lights up green)
See section "Troubleshooting", page 28, for further information on cooler
problems.
The set point for the sample gas outlet temperature (factory-set to +3 °C) can be
changed at the temperature controller:
1 Press key P; the set point is displayed.
2 Use arrow keys to adjust the set point.
3 Press key P; the new set point is stored.
Controller LED K2
Lights up constantly yellow (cooling)
Lights up constantly yellow (cooling)
, status alarm
1
Blinks (cooler regulation)
Lights up constantly yellow (cooling)
Lights up constantly yellow (cooling)
Off
Off
19