Teledyne 7500ZA - Infrared Gas Analyzer - Manual (Page 101)

NDIR Gas Analyzer Error Messages
Teledyne Analytical Instruments 85
8. Error Messages
Table 8-1 lists the error messages that may occur onscreen along
with the probable cause for the error.
Table 8-1: Error Messages
When errors No. 1 to No. 3 and No. 10 occur, analyzing block error
contact output closes. When errors No. 4 to No. 9 occur, the calibration
error contact output closes.