Emerson 7000 SERIES 7ADTB manual Bypassing & Isolating, Bypassing the ATS, To Bypass Normal Source

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SECTION 3 BYPASSING & ISOLATING

BYPASSING THE ATS*

This procedure explains how to Bypass the closed automatic transfer switch contacts. Bypassing is required before the ATS can be tested or isolated. The Bypass Handle must be in the OPEN position (green indicator) and the Isolation Handle must be in the CLOSED position (window). See Figures 3–1, 3–2, and 3–3.

Indicator shows:

green ● OPEN when the ATS is not bypassed.

To Bypass Normal push in handle all the way & turn it clockwise.*

You can only bypass to the same source that the Transfer Switch is connected.

Solenoid interlock prevents incorrect operation.

1.Observe which Transfer Switch Connected To light is on (Normal or Emergency) on the door. This is the position of the automatic transfer switch.

2.Bypass to the same source as connected to transfer switch as follows (select Normal or Emergency).

Indicator shows:

yellow ● EMERGENCY CLOSED

when ATS is bypassed to Emergency or

yellow ● NORMAL CLOSED when ATS is bypassed to Normal Source.

To Bypass Emergency pull out han- dle all the way & turn it clockwise.*

Figure 3–1. Bypass Handle and position indicators.

To Bypass Normal Source*

(Load connected to Normal Source)

The Transfer Switch Connected To Normal light is on and Transfer Switch Connected To Emergency light is off.

Push in* the Bypass Handle all the way, then turn it clockwise until Bypass Switch Position shows CLOSED on NORMAL (yellow indicator). The red light Unit Not In Automatic will flash.

Push in

Bypass Switch

E

Bypass

 

 

Handle

 

 

&

 

 

turn it

 

 

clockwise.

 

L

 

 

 

 

N

 

ATSE

 

Figure 3–2. Bypass to Normal.

To Bypass Emergency Source*

(Load connected to Emergency Source)

The Transfer Switch Connected To Emergency light is on and Transfer Switch Connected To Normal light is off.

Pull out* the Bypass Handle all the way, then turn it clockwise until Bypass Switch Position shows CLOSED on EMERGENCY (yellow indicator). The red light Unit Not In Automatic will flash.

Pull out

Bypass Switch

E

Bypass

 

 

Handle

 

 

&

 

 

turn it

 

 

clockwise.

 

L

 

 

N

 

ATSE

 

Figure 3–3. Bypass to Emergency.

The automatic transfer switch can now be put in the TEST or OPEN position. See ISOLATING on page 3–2.

*NOTE: When Accessory 66A (reversed Normal & Emergency connections) is specified, the handle push–pull operation is reversed. Follow instructions on the door.

3---1

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Contents Rating Label NameplateCatalog Number Identification 1600Installation Remove three Shipping Angles From the Transfer SwitchRemove the Shipping Skid Supporting foundation and mountingInstallation Functional Test Voltage ChecksTurn and hold Transfer Control switch clockwise to Transfer Electrical OperationTesting & Service Preventive MaintenanceDisconnecting the Controller Replacement PartsTesting & Service TROUBLE-SHOOTINGTrouble-Shooting Checks Maintenance HandleBypassing & Isolating Bypassing the ATSTo Bypass Normal Source To Bypass Emergency SourceIsolating the ATS Turn crank Counter Clockwise Until Window ShowsConn Test IsolateTurn crank clockwise until window shows Conn connected Return to ServiceTurn crank Clockwise Until Window Shows Return to Service To Un-Bypass Normal SourceBypass Handle Turn it Counter Clockwise To Un-Bypass Emergency SourceIndex See Controller User’s Guide

7000 SERIES 7ADTB specifications

The Emerson 7000 Series 7ADTB is a state-of-the-art temperature transmitter designed for industrial applications that require high precision and reliability. As part of the renowned 7000 series, the 7ADTB model combines advanced digital technology with robust construction, making it an essential tool for temperature measurement in sectors such as oil and gas, chemical processing, pharmaceuticals, and food production.

One of the standout features of the 7ADTB is its exceptional accuracy. With a measurement range that adapts to various sensor types, including thermocouples, RTDs, and thermistors, the transmitter ensures precise readings and optimizes process control. The modular design allows for easy integration into existing systems, thereby enhancing operational efficiency.

The 7000 Series incorporates Emerson’s proprietary Micro Tracy technology, which provides excellent stability and minimizes drift, ensuring reliable performance over time. This is particularly important in environments where temperature fluctuations can affect product quality and safety. The transmitter offers a linearized output and is capable of digital communication via protocols such as HART, Profibus, and Fieldbus, allowing for seamless integration with modern control systems.

Another notable characteristic of the 7ADTB is its rugged construction. Built to endure harsh industrial conditions, the transmitter features a robust housing that is resistant to corrosion and mechanical stress. This durability not only extends the life of the instrument but also reduces the need for frequent maintenance.

The Emerson 7000 Series 7ADTB is also equipped with user-friendly interfaces and advanced diagnostic capabilities. A built-in display provides instant readings and real-time data while allowing users to easily navigate through configuration settings. Furthermore, the device includes self-diagnostic features that alert operators to potential issues before they escalate, promoting preventative maintenance practices.

Overall, the Emerson 7000 Series 7ADTB temperature transmitter is a versatile and reliable solution that caters to a wide range of industrial applications. With its exceptional accuracy, robust design, and advanced communication capabilities, it stands as a testament to Emerson's commitment to delivering innovative measurement solutions that enhance operational efficiency and product quality. This makes it a preferred choice for engineering professionals looking to optimize their temperature measurement processes.
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