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Model 360E Instruction Manual Optional Hardware and Software
The O
2
concentration range is 0-100% (user selectable) with 0.1% precision and accuracy and is available to be
output via the instrument’s analog output channel A3 (See Section 6.13.4).
The temperature of the O
2
sensor is maintained at a constant 50° C by means of a PID loop and can be viewed
on the front panel as test function O2 TEMP.
The O
2
sensor assembly itself does not have any serviceable parts and is enclosed in an insulated canister.
5.6.1.3. Pneumatic Operation of the O
2
Sensor
Pneumatically, the O
2
sensor is connected to the bypass manifold and draws a flow of about 120
cm³/min in addition to the normal sample flow rate and is separately controlled with its own critical flow
orifice. Figure 5-8 shows the internal pneumatics of the M360E with the O2 Sensor installed.
Figure 5-3: M360E – Internal Pneumatics with O
2
Sensor Option 65
05232 Rev B3 47