Chapter 1 – Attach/Replacing the Pyrolyzer
1. Turn off the power source to the main unit
2. Pull the cover lock knob down and release the lock. After pulling it down further below, pull back the
pyrolyzer case cover and remove it.
Notice
• The Sensor Modules do not normally require gas calibration to be performed on
site. Gas calibration of the sensor module is performed by New Cosmos at the
time the sensor is manufactured.
• The CDS sensors (electrochemical) have a life of 2 or more years depending on
the specific sensor. CDS Sensors are labeled with a manufacture date. All CDS
sensors must be gas tested or replaced every 16 months from the manufacture
date or 12 months from the install date, whichever comes first.
• The NF3 CDS sensor is packaged with a pyrolyzer module and both units should
be replaced at the same time. When using a CDS sensor for NF3, both the sensor
and pyrolyzer should be gas tested or replaced after 12 months of use (16 months
from manufacture, whichever comes first). If not replaced at the 12-month date,
both should be replaced after 24 months of use or 30 months from manufacture
date (which ever date comes first).
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