ii
Things You Should Know About Taking Pre-Programmed
Samples ................................................................................... 19
Memory Considerations............................................................... 20
4.
CALIBRATION AND MAINTENANCE
....................................... 21
Calibrating the CO
2
Concentration Measurement ....................... 21
Calibrating the Temperature or Relative Humidity
Measurement ........................................................................... 23
Calibrating the CO Concentration Measurement
(Model 8551 only)..................................................................... 24
Replacing the CO Sensor............................................................ 26
Storage Precautions .................................................................... 27
5. TROUBLESHOOTING
................................................................ 29
APPENDIX A: SPECIFICATIONS
..................................................... 31
APPENDIX B: INTERNAL DIP SWITCH SETTINGS
....................... 35