Thermo Electron BBD 6220 - Switching Function: Setpoint Lock-In ON;OFF; Operate

Switching function: Setpoint lock-in ON/OFF
To prevent unintentional or unauthorized modification of the setpoints for temperature, CO
2
, O
2
and rel. humidity, the setpoints can be "locked in".
The setpoints cannot be changed until the interlock has be cancelled again.
Factory setting: setpoints unlocked.
Instruction Entry / Keys / Remarks Display / Remarks / Status
Select function level 4
Hold down
Indicator lamp "control" flashes and
current function level is indicated by
flashing display
+
or Press °C
Display circuit status,
factory setting:
setpoints released
Release and hold down
again
°C
CO
2
Change circuit status:
locked setpoints
Press °C
CO
2
Change circuit status:
Release setpoints
+
Press
°C
CO
2
Exit function level
Release
Actual temperature, CO
2
, O
2
and
rel. humidity values are displayed
again after 1 minute
Press any setpoint key Actual temperature, CO
2
, O
2
and
rel. humidity values are displayed
again immediately
6. OPERATE
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