Preparing The Co2 Calibration - Thermo Scientific STERI-CYCLE i160 User Manual

• The system returns to the main menu. The temperature displays shows the actual value currently
measured in the workspace.
Note Excessive workspace temperature:
Excessive workspace temperatures after the calibration can be reduced by leaving the doors open for
approx. 30 seconds.
Value reset:
If the value isn't changed within the next 30 seconds, the system automatically exits the menu, and the
most recently confirmed value is preserved.
Preparing the CO
To determine the exact measured value of the device-integral CO
measurement has to be performed every three months.
If a major deviation is found during this check, a CO
During this process, the CO
measurement. Use a calibrated measuring instrument with an accuracy of < ± 0.3 % CO
Suitable instrument:
• Portable IR readout instrument.
The measuring sample is withdrawn through the sealable measurement opening of the glass door.
The comparison measurement must be performed when the device is completely heated up.
Comparison measurement procedure:
1. Turn on the device using the power switch.
2. Adjust the CO
humidity level.
3. Insert the measuring instrument probe through the measurement opening into the workspace.
Wait until the CO
4. For devices equipped with the optional gas-tight screen, the measurement opening is located:
• with S
• with S
5. Remove the measuring probe, plug the measurement opening and close the doors.
6. Calibrate the CO
Note IR measuring cell:
For devices with infrared (IR) measuring cells, the
CO concentration has been set to 4.0% CO
2
Calibration should be performed with the CO
(prospective work process value).
Thermo Scientific
calibration
2
control of the device is set to the value measured during the comparison
2
set value and wait until the unit has fully heated up and developed the correct
2
value displayed by the instrument has stabilized.
2
i160 in the center gas-tight screen,
TERI-CYCLE
i250 in the left or center gas-tight screen.
TERI-CYCLE
control.
2
sensor, a CO
2
calibration is required.
2
calibration can only be performed when the
2
or more.
2
set value designated for the work process
2
9
Maintenance

Preparing the CO2 calibration

comparison
2
for this test.
2
i160 / i250
S
TERI-CYCLE 9-5