Emerson 7ADTB manual Testing & Service, Replacement Parts

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SECTION 2 TESTING & SERVICE

TRANSFER TEST

REPLACEMENT PARTS

Test the Automatic Transfer Switch portion of the 7000 Series 7ADTB at least once a month. This procedure checks the electrical operation of the Transfer Switch and Controller. Put the engine–generator starting control (at the engine–generator set) in automatic mode.

In the following test the generator will start, the load will be transferred to the Emergency source, then back to the Normal source. An interruption to the load will occur, un- less the the Transfer Switch contacts are bypassed before the test. See pages 3–1 through 3–4 for bypassing & iso- lating instructions if no interruption of load is required.

Be sure to close the enclosure door

before proceeding to prevent personal injury

in case of electrical system fault.

Perform the five–stepElectrical Operation – Transfer Test procedure on page 1–4.

PREVENTIVE MAINTENANCE

Reasonable care in preventive maintenance will insure high reliability and long life for the 7000 Series 7ADTB. An annual preventive maintenance program is recom- mended.

ASCO Services, Inc. (ASI) is ASCO Power Technologies’s national service organization. In the US ASI can be contacted at 1-800-800-2726 for in- formation on preventive maintenance agreements.

Checklist for Yearly Inspection

Hazardous voltage capable of causing shock,

burns, or death is used in this switch.

Deenergize both Normal – Emergency power

sources before performing inspections!

❐Clean the 7ADTB enclosure.

Brush and vacuum away any excessive dust accumu- lation. Remove any moisture with a clean cloth.

❐Check the transfer switch contacts.

Bypass, isolate, and withdraw the transfer switch. Then remove the transfer switch interphase barriers and check the condition of the contacts. Replace con- tacts when pitted or worn excessively. Reinstall the interphase barriers carefully. See page 3–4.

❐Maintain transfer switch lubrication.

If switch is subjected to severe dust or abnormal operating conditions, renew factory lubrication on all movements and linkages. Relubricate solenoid operator if TS coil is replaced. Don’t use oil; order lubrication kit 75-100.

❐Check all cable connections & retighten them.

Replacement parts are available in kit form. When or- dering parts provide the Serial No., Bill of Material No. (BOM), and Catalog No. from the transfer switch name- plate. Contact your local ASCO Power Technologies Sales Office or ASI:

In the United States

call 1 – 800 – 800 – ASCO ( 2726 )

In Canada

call 1 – 888 – 234 – ASCO ( 2726 )

DISCONNECTING THE CONTROLLER

The harness disconnect plugs are furnished for repair purposes only and should not have to be unplugged. If the controller must be isolated, follow these steps:

Bypass–Isolation Switch is energized! Do not touch isolation contact fingers; shock, burns, or death could result!

Disconnecting the Plugs

1.Bypass and Isolate the Automatic Transfer Switch.

2.Open the upper enclosure door.

3.Separate the two quick disconnect plugs by squeez- ing the latches. Do not pull on the harness wires.

Reconnecting the Plugs

1.The ATS should be still bypassed and isolated.

2.The two harness plugs and sockets are keyed. Care- fully align the plugs with the sockets and press straight in until the latches click.

3.Close the enclosure doors.

4.Follow Return to Service instructions on page 3–5.

MANUAL LOAD TRANSFER

This procedure manually transfers load to other source if the Transfer Switch or Controller are out of service.

Close enclosure doors to prevent personal injury in case of electrical system fault.

1.Bypass the connected ACTB source. Turn Bypass Han- dle to EMERGENCY or NORMAL (see page 3–2).

2.Isolate to Test. Turn the Isolation Handle to TEST position (see page 3–3).

3.Turn the Bypass Handle to OPEN, then to the other source (see page 3–1). The load will be interrupted.

4.Turn the Isolation Handle clockwise to the CONN [connected] position (see page 3–4).

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Contents Rating Label Table of Contents600 Standard Controls Indicators Group ControllerNameplate Catalog Number IdentificationSection InstallationFails When normal sourceEngine Starting Contacts Auxiliary CircuitsVoltage Checks Go off. Then put the starting Control selector switch onObserve these lights Operate This switchTurn and hold Transfer Control switch clockwise to Transfer Electrical OperationReplacement Parts Testing & ServiceContact position indicators Table B. Trouble-Shooting ChecksLoad Disconnected = O = ONormal = CUpper amber light Bypass SwitchBypassing & Isolating Bypassing the ATSBypass Handle Clock Wise PushBypass Handle Turn it Counter Clockwise TurnLower amber light Turn crank Counter Clockwise Until Window ShowsIsolating the ATS Middle amber light Should be onTab Handles Left rail Right rail Contact InspectionTurn crank Clockwise Until Window Shows Return to ServiceMiddle amber light Should come on Conn Bypass Handle Counter Clockwise Bypass Handle ClockwiseTurn the handle clockwise Turn the handle counterclockwise See Controller User’s Guide Index

7ADTB specifications

The Emerson 7ADTB is a cutting-edge device designed primarily for temperature and pressure monitoring in industrial applications. This versatile model showcases a blend of advanced technologies that ensure high accuracy, reliability, and durability even in the most demanding environments.

One of the key features of the Emerson 7ADTB is its exceptional measurement range. Capable of handling extreme temperatures and pressures, it appeals to industries such as oil and gas, chemical processing, and pharmaceuticals. The device is engineered to maintain precise readings, ensuring optimal safety and efficiency in processes where temperature and pressure control is crucial.

A standout technology in the Emerson 7ADTB is its intelligent sensor technology. This advanced feature allows the device to self-calibrate and adapt to various conditions, minimizing human error and ensuring accurate data collection. It uses built-in diagnostics to monitor its performance continuously, providing real-time alerts for any anomalies or maintenance needs. As a result, users can implement preventive measures to avoid costly downtimes.

The device is also notable for its robust construction. Built to withstand harsh industrial environments, the Emerson 7ADTB boasts an IP67 ingress protection rating, meaning it is dust-tight and can endure immersion in water. This characteristic, combined with high-grade materials, ensures a long lifespan and reliable performance in various applications, from offshore platforms to refining facilities.

Integrating seamlessly into existing systems is another crucial aspect of the Emerson 7ADTB. It supports a variety of communication protocols, including Modbus and HART, allowing for easy integration with control systems. This compatibility facilitates real-time data monitoring and control, enabling operators to make informed decisions based on accurate and timely information.

Moreover, the user-friendly interface of the Emerson 7ADTB enhances operational efficiency. The device features an intuitive display that allows users to access data, adjust settings, and perform diagnostics with ease, reducing the learning curve for new operators.

In conclusion, the Emerson 7ADTB represents a significant advancement in temperature and pressure measurement technology. With its robust construction, intelligent sensor capabilities, and ease of integration, it meets the demands of modern industrial applications while ensuring safety, reliability, and performance. As industries continue to evolve, devices like the Emerson 7ADTB will play a pivotal role in enhancing operational efficiency and productivity.
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