CODEL Tunnel Tech 700 Series, Техническое руководство

Страница: 33 / 81

Technical Manual
CODEL
23
6.1.1.6. If the detector levels are not within the range of 10000 +/-2000, move on to physical
alignment.
6.1.1.7. Alignment.
6.1.1.8. After physically altering the alignment as shown in the previous section, run a zero Cal to
calibrate the system. Follow the steps of secton 5.2.5. waiting around 3 minutes from
initiation for the zero cal to complete.
6.1.1.9. With the visibility calibrated, the last step is to use a visibility check filter to check the
response of the visibility output. From the main menu;

Press , the following screen appears.

Use or to scroll through to Vis% and press to select Vis%.
The display returns to measurement screen displaying Vis%
measurement.

Place the check cell on the sight tube and observe the Vis % reading. This reading
will steadily shift. Wait around 3 minutes for a plateau to be reached.

Once complete, remove check cell.
Note: Failure to carry out this check will invalidate the warranty and performance of the system.
6.2. Calibration of Electrochemical Cell
6.2.1. Mechanical Check
6.1.3.1. The mechanical check for the electrochemical cell is via cleaning the cells. Remove the
cover of the base of the E-Cell block and wipe clean with a soft dry cloth to remove any
debris from the E-Cells.
6.1.4. Span Check
Every 6 months the response and calibration curve of each analyser must be checked to ensure peak
response is normalised. The following cylinders should be used:
Note: It is possible to use different gas levels as long as they are within the maximum measurement
range of the analyser.
Zero cal - 100% N2
Span NO - 30ppm in N2
Span CO - 300ppm in N2
Select Channel
E-Cell CH1
Select Channel
Vis% 1. Meas
– 09:37:26
Vis: 0.10%