Emerson Rosemount 2120, Справочное руководство

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Safety messages
NOTICE
Read this manual before working with the product. For personal and system safety, and for optimum product performance,
ensure you thoroughly understand the contents before installing, using, or maintaining this product.
For technical assistance, contacts are listed below:
Customer Central
Technical support, quoting, and order-related questions.
• United States - 1-800-999-9307 (7:00 am to 7:00 pm CST)
• Asia Pacific- 65 777 8211
North American Response Center
Equipment service needs.
• 1-800-654-7768 (24 hours a day — includes Canada)
• Outside of these areas, contact your local Emerson representative.
WARNING
Failure to follow safe installation and servicing guidelines could result in death or serious injury.
Ensure the level switch is installed by qualified personnel and in accordance with applicable code of practice.
Use the level switch only as specified in this manual. Failure to do so may impair the protection provided by the level switch.
The weight of a level switch with a heavy flange and extended fork length may exceed 37 lb. (18 kg). A risk assessment is required
before carrying, lifting, and installing the level switch.
WARNING
Explosions could result in death or serious injury.
Verify the operating atmosphere of the level switch is consistent with the appropriate hazardous locations certifications.
Before connecting a handheld communicator in an explosive atmosphere, ensure the instruments are installed in accordance with
intrinsically safe or non-incendive field wiring practices.
In explosion-proof/flameproof and non-incendive installations, do not remove the housing cover when power is applied to the
level switch.
The housing cover must be fully engaged to meet flameproof/explosion-proof requirements.
WARNING
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.
Ensure the power to the level switch is off, and the lines to any other external power source are disconnected or not powered while
wiring the level switch.
Ensure the wiring is suitable for the electrical current and the insulation is suitable for the voltage, temperature, and environment.
WARNING
Process leaks could result in death or serious injury.
Ensure the level switch is handled carefully. If the process seal is damaged, gas might escape from the vessel (tank) or pipe.
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