Yokogawa IR200 - Manual (Page 82)

8 - 3
IM 11G02M01-01E
8.2 Other Troubleshooting
The following table shows how to remedy other troubles, such as faulty readings.
Symptom Checking Item Remedy, etc.
Drift * Locate and check gas leaking points,
and take the proper remedy.
(See Section 3.3.)
* Clean the cell and window.
Replace the part. (See Section 7.5.) * Check if the sample gas is supplied to
the analyzer at the specified flow rate.
* Check the optical system, e.g., the sample cell
window, O-ring, detector window and inside of
the cell for heavy dirt.
Readings are
abnormally high * Check if the sample gas contains interfering
components (water and CO
2 ) in large quantities
or not.
* Investigate the components of the samplegas
and then contact our serviceperson.
See address information on the end cover.
Readings do not
increase * Check if the sample gas is supplied to the
analyzer at the specified flow rate.
* Check if the zero and span calibration is
enabled. * Locate and check gas leaking points,
and take the proper remedy.
(See Section 3.3.)
* If enabled, sampling (check the points
relating only to the sample gas and take
the proper remedy.)
* If not enabled, check the calibration related
error items. (See Error Nos. 4 to 8 in Section 8.1.)
T8.2E.EPS