Teledyne 3010PA, Operating Instructions Manual

Page: 67 / 105

2-6: Part II
2 Operational Theory Model 3010
P
2.2.6.3 Class B-1 Cell
The class B-1 cell is for use in applications where it is exposed to less
than 0.1 % of carbon dioxide, and where fast response is important.
Nominal output in air is 0.50 mA, and 90 % response time is 7 s.
Expected life in air is 8 months.
2.2.6.4 Class B-3 Cell
The class B-3 cell is for use in applications where a slightly longer
response time is acceptable in order to have a longer cell life.
Nominal output in air is 0.30 mA, and 90 % response time is 13 s.
Expected life in air is 12 months.
2.2.6.5 Class C-3 Cell
The class B-1 cell is for use in applications where it is exposed to less
than 0.1 % of carbon dioxide, and where a longer response time is accept-
able in order to have a longer cell life.
Nominal output in air is 0.20 mA, and 90 % response time is 30 s.
Expected life in air is 18 months.
2.2.6.6 Hydrogen and/or Helium Service
If the sample gas contains 10 % or more hydrogen and/or helium, only
“clamp” cells are used. These Micro-Fuel cells are identified by the suffix -C
added to the cell class number.
NOTE: Teledyne offers
2.3 Sample System
The sample system delivers gases to the Micro-Fuel Cell sensor from
the Analysis Unit Gas Control Panel inlets. Depending on the mode of
operation either sample or calibration gas is delivered.
Figure 2-4 is a typical flow diagram for the sampling system. The flame
arrestors and valves (shaded) are optional.
When the –C option is ordered, the valves are installed inside the 3010
enclosure and are regulated by the remote Control Unit electronics.