Operations Manual Model 1100
Manual Part Number:
C5-06-4900-01-0
Manual File Name:
MN-A-0004
Manual Revision Level: E
ECO: 9760
1.3.7 Sensor Flow-Through Head
The sensor mounting-base allows the model MAX-250 sensor to be used for process monitoring.
It serves as both the receptacle for the sensor and the delivery system for a gas sample from a
process vessel or stream. It includes a sample inlet, a flow-through chamber a sample exhaust,
and a screw-in receptacle for the oxygen sensor.
1.3.7.1 Sample Gas Inlet
Gas must be directed from the measured process to the sample inlet port via positive pressure
from the source, or an external pump. The model MAX-250 sensor and flow-through head
combination can be installed in any Neutronics Process Sampling System.
1.3.7.2 Sample Gas Exhaust
A sample gas exhaust port is provided for installation with a process oxygen sampling system.
Gas must be directed from the sample exhaust port to a suitable vent source that does not apply
significant backpressure on the sampling system. The unit can be installed in-line with any
Neutronics Process Sampling System.
1.3.7.3 In-Situ Mounting
The model MAX-250 sensor may be mounted directly to a contained process gas stream via a
user-installed threaded port. In-situ sampling is appropriate for clean dry applications, where there
is not significant pressure / vacuum, or fluctuation in pressure / flow.
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1.3.8 Chassis
The chassis is manufactured of specially coated steel. It is designed to provide a general level of
protection against mechanical damage from the local environment. It is also an important
component of the electrostatic discharge (ESD) shielding design. Since the model 1100 is a flush
mounted system, the portion of the instrument housed in the chassis will be located behind the
control panel or embedded within the customer equipment enclosure. The enclosure is general
purpose and is not watertight.
Analyzer
Electronics
Package is
inserted here
Figure 4 – Analyzer chassis
Figure 3 – Sensor flow-through head
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