Model 360E Instruction Manual Optional Hardware and Software
The O2 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 O2 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 O2 sensor assembly itself does not have any serviceable parts and is enclosed in an insulated canister.
5.6.1.3. Pneumatic Operation of the O2 Sensor
Pneumatically, the O2 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 O2 Sensor Option 65
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