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Teledyne API M100E Analyzer Operation Manual Optional Hardware and Software
65
5.9.1.3. PNEUMATIC OPERATION OF THE O
2
SENSOR
Pneumatically, the O
2
sensor draws a flow of 80 cm³/min in addition to the normal sample flow rate. It is
separately controlled with its own critical flow orifice.
(Kicker)
O
2
Sensor
Flow Control
Figure 5-10: Internal Pneumatics with O
2
Sensor
5.9.2. CARBON DIOXIDE SENSOR (OPTION 67A)
The optional CO
2
sensor allows the M100E to measure both SO
2
and CO
2
simultaneously. This option includes
a CO
2
sensor probe, a Logic PCA that conditions the probe output and issues a 0-5 VDC signal to the analyzer’s
CPU that computes the CO
2
concentration by scaling the input signal based on the values of the CO
2
_SLOPE
and CO
2
_OFFSET recorded during calibration (refer to Section 8.10.2).
The CO
2
sensor assembly itself does not have any serviceable parts and is enclosed in an insulated canister.
5.9.2.1. O
2
SENSOR RANGES AND SPECIFICATIONS
Table 5-8: CO
2
Sensor Ranges
OPTION NO. RANGES ANALYZER MODEL(S)
67A 0-20% M100E
04515F DCN6048