Emerson SPS 4001B instruction manual Maintenance and Service, Fuse Replacement

Instruction Manual

IM-106-340AC-1, Rev. 1.0 April 2005

SPS 4001B

Section 4 Maintenance and Service

OVERVIEW

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1 Remove/Install Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-3 Circuit Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . page 4-5 Solenoid Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-5 Pressure Switch Replacement . . . . . . . . . . . . . . . . . . . . . page 4-6 Check Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . . page 4-6 Pressure Regulator Maintenance . . . . . . . . . . . . . . . . . . . page 4-6 Flow Meter Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-6

This section describes service and routine maintenance of the SPS 4001B. Replacement parts are available from Rosemount Analytical. Refer to Section 6, Replacement Parts for part numbers and ordering information.

Secure equipment cover and ground leads after equipment service. Failure to secure covers and ground leads could result in serious injury or death.

FUSE REPLACEMENT

The SPS 4001B has a fuse on the circuit board. Refer to Section 6, Replacement Parts for replacement fuse specifications. Perform the following procedure to check or replace the fuse.

Disconnect and lock out power before working on any electrical components.

1.Turn off power to the system and open the enclosure cover.

2.Push in and turn the fuseholder cap 1/4 turn counterclockwise. Remove the fuse.

3.After checking or replacing the fuse, install fuseholder cap. Push in and turn the cap 1/4 turn clockwise.

4.Install the enclosure cover and secure the cover screws.

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