Unpack And Inspect; Locate Sensor; Direct Mount Or Sensor Separation - Emerson Net Safety SC311 Reference Manual

Reference Manual
00809-0100-4311
2 Install
2.1

Unpack and inspect

Carefully remove all the components from the packaging and check them against the
enclosed packing list. Inspect all components for any obvious damage such as broken or
loose parts. If you find any components missing or damaged, notify your local Net Safety
representative or the factory immediately.
2.2

Locate sensor

Prior to installation, plan where to place the sensor. Although there are no absolute rules
determining the quantity of detectors or location of a sensor, consider the following
points.
CAUTION
Avoid placing the sensor where it may be exposed to splashing or direct water sprays. A
splashguard may be required to protect the sensor.
• Carefully locate the sensor in an area where gases may potentially accumulate,
considering that light gases tend to rise and heavy gases tend to accumulate in low
areas.
• Use redundant systems to enhance protection and reliability.
• Consider the air movement patterns within the facility.
• Consider the construction of the facility, such as trenches where heavy gases or peaks
where light gases may accumulate.
• Seek advice from experts knowledgeable about the primary gas to be detected.
• Refer to the regulatory publications that discuss guidelines for your industry.
2.3

Direct mount or sensor separation

2.3.1 Direct mount
You can attach the sensor directly to a Net Safety
an appropriate location for detecting the target gas or separate the sensor and remotely
mount it away from the transmitter.
Make sure the sensor is accessible for calibration and maintenance purposes and that the
transmitter is accessible and visible.
Net Safety SC311
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Millennium II transmitter and place it in
Install
May 2019
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