Thermo Scientific STERI-CYCLE i160, User Manual

Page: 88 / 200

6
Handling and control
auto-start function
6-12
S
TERI-CYCLE
i160
/
i250
Thermo Scientific
auto-start function
The auto-start function is a fully automated routine for startup and subsequent adjustment of the CO
2
sensing circuits. After the start, the device control adjusts the temperature to the set value while
humidity is generated. When temperature and relative humidity have reached constant values, the
CO
2
measuring system is automatically adjusted to these values, and the workspace is supplied with
the preset quantity of CO
2
.
Note
Factory settings:
Depending on the type of the O
2
sensor, one of the two O
2
control ranges has been preset at the
factory:
Control range I: 1 % - 21 %
Control range II: 5 % - 90 %
Usage of the process gases:
For set values below 21 % O
2
, the device must be connected to a nitrogen supply system.
For set values above 21 % O
2
, the device must be connected to an oxygen supply system.
For set values of 21 % O
2
, the O2 control is switched off and error monitoring is disabled as well.
The control loop error monitoring system (optional) is enabled.
Note
Please make sure that the sensor has been correctly plugged into the socket. Improper installation of
the sensor may cause corrosion at the contacts and calibration errors during the auto-start routine.
You can verify the proper function by simply activating the sensor. When no error message occurs
within 10 minutes, the unit is ready for the auto-start routine.