Emerson Fisher 4320 Manual de Instruções descarregar pdf (Página 62)

Instruction Manual

D103621X012

4320 Position Monitor

April 2014

Replacing the Magnetic Feedback Assembly

To remove the magnet assembly from the actuator stem, perform the following basic steps.

1. Remove the 4320 from the actuator.

2. Remove the screws holding the magnet assembly to the connector arm.

Install the new magnet assembly per the appropriate Installation/Mounting procedure. Once the instrument is

mounted, perform the calibration routine before putting back in to service.

Replacing the Power Module

WARNING

Personal injury and property damage can result from fire or explosion if the power module, which contains two

lithiumthionyl chloride (LiSOCl

) batteries, is subjected to heat above 100_C (212_F). Power modules should be stored in a

cool, dry and ventilated area; for maximum life, storage should not exceed 30_C (86_F).

Note

The batteries contained in the field replaceable power module are not rechargeable. Contact your Emerson Process Management

sales office if a replacement power module is required.

When operating in temperatures between -10_C (14_F) and -20_C (-4_F) it is recommended that you use the extended power

module, as power module life is impacted. The life expectancy of an extended life power module used continually in the -10_C

(14_F) and -20_C (-4_F) range is 3 years.

Note

Proper disposal of used power modules, which contain two lithiumthionyl chloride (LiSOCl

) batteries, is required. Disposal

should be done in accordance with applicable local rules and regulations.

For additional information refer to the manufactures guidelines for disposal of lithium batteries:

http://www.tadiranbat.com/pdf.php?id=0111_-_Guidelines_for_Disposal_of_Lithium_Cells_and_Batteries (available at

www.tadiranbat.com).

Removal

Refer to figure 5.

1. Loosen the two instrument cover screws and open the cover.

2. Remove the four screws providing the mechanical connection to the housing.

3. Disengage the power module from the banana plug connectors on the main board.

4. Remove the power module.

Installation

Refer to Installing Standard and Extended Life Power Modules on page 10. Recalibrate the instrument before putting it

back into service.

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Emerson Fisher 4320 Manual de Instruções Página 62