Chapter 5

Multiple Zone

Kilns

Note: See also Multiple Zone Options, page 21.

An Overview of Multiple Zone Firing

If you are not sure how many zones your kiln has, look into the firing chamber. The number of thermocouple tips indi- cates the number of zones.

In single-zone kilns, the Sentry measures temperature from one location. When the controller turns on the heat, all the elements turn on.

With two and three zone kilns, the Sentry measures tem- perature from each individual zone. It then adjusts the heat separately for each zone to improve temperature uniformity.

To maintain even temperature, the Sentry calculates not only temperature difference between zones, but also length of time needed to change temperature. By carefully timing heat output, it maintains even temperature with a minimal loss in firing speed.

Note: Multiple zone kilns use the same Cone-Fire and Ramp-Hold programming instructions as sin- gle zone kilns.

Note: Firing a Ramp-Hold program at FULL rate (1799°F/999°C or higher rate) shuts off multi- ple-zone control for that firing. The kiln then fires as a single zone kiln.

Viewing Zone Temperatures

The temperature displayed during firing is an average taken from all zones. Through the Options key, you can gain more precise temperature readings:

Zone Difference (DIFF)

1 Press OPTIONS repeatedly until DIFF appears.

2Press ENTER.

3The maximum difference in temperature between the zones is shown. (Example: -005 .)

Zone Temperatures (T123)

1 Press OPTIONS repeatedly until T123 appears.

2Press ENTER.

3The temperature for each zone will display one after the other. This information will cycle for one min- ute. Then normal temperature display will return. For example:

■ Top zone: TC 1¯ 1250

■

Middle zone:

TC 2-

 

1251

 

 

Bottom zone:

 

 

 

 

■

TC 3_

 

1249

 

Two Zone Kilns: Adjust Heat in Center Section (CAdJ)

The Center Adjust option is accessed with the Options key. It appears only on 2 zone kilns that contain 3 relays and 3 banks of elements. It does not appear on 2 zone kilns with 2 relays, or on 3 zone kilns.

The Center Adjust acts as an infinite control switch that adjusts heat to the center section of the kiln. A number will display. 100 is the factory default, meaning 100% heat. You can change the setting from 0 to 200. The higher the num- ber, the more the heat in the center section.

1From IdLE , press OPTIONS repeatedly until CAdJ appears.

2Press ENTER. Use any number key to change the number that appears.

3Press ENTER. Press STOP to return to IdLE .

Thermocouple Failure

In a Multiple Zone Kiln

In a multiple zone kiln, if a thermocouple fails, the firing will continue as a single-zone kiln so long as one thermocou- ple still operates. FAIL will appear, alternating with the thermocouple that failed (i.e. TC 1¯ ).

Power Output Lights

The 3 lights to the right of the temperature display turn on when the controller sends power to the relays.

■Two Zone Kiln The top light shows power to the relay for the top section of the kiln. The bottom light shows power to the bottom. Ignore the center light.

Three Zone Kiln The top light indicates power to the top section relay, the middle light to the middle section, and the bottom light to the bottom.

Testing Multiple Zone Elements

When relays or thermocouples are connected to the wrong controller terminals, zones will show a wide tempera- ture difference. To wire the kiln properly, trace the switch box wiring with the kiln’s wiring diagram. Also, see “Ele- ment Test,” page 21.

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Sentry Industries Sentry 2.0 operating instructions Multiple Zone Kilns
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Sentry 2.0 specifications

Sentry Industries has recently unveiled the Sentry 2.0, an innovative enhancement to their line of security solutions. This state-of-the-art platform is designed to address modern security challenges with a blend of advanced technology and user-centric features.

One of the standout features of Sentry 2.0 is its integrated artificial intelligence capabilities. The system employs machine learning algorithms to analyze behavior patterns, allowing for real-time threat detection and response. This proactive approach means that potential security breaches can be identified and mitigated before they escalate, significantly reducing risk for businesses and individuals alike.

In addition to its AI-driven technology, Sentry 2.0 boasts an intuitive user interface that simplifies the management of security systems. This user-friendly design enables users, regardless of their technical know-how, to configure and monitor security settings effortlessly. The dashboard provides a comprehensive overview of the security landscape, displaying real-time data, alerts, and system status updates in a clear and accessible manner.

Another notable characteristic of Sentry 2.0 is its robust integration capabilities. The platform can seamlessly connect with various security devices, including cameras, motion sensors, and access control systems, creating a unified security ecosystem. This interoperability ensures that users can easily expand or customize their security solutions as their needs change over time.

Sentry 2.0 also prioritizes data privacy and protection. With end-to-end encryption and secure cloud storage, users can trust that their sensitive information is safeguarded against unauthorized access. The platform complies with industry standards and regulations, offering peace of mind in an increasingly digital landscape.

Moreover, Sentry 2.0 includes advanced reporting features, enabling users to generate insights from their security data. These analytics can help organizations understand trends, optimize response strategies, and ultimately enhance their overall security posture. The ability to generate customized reports empowers businesses to make informed decisions based on detailed analyses of their security systems.

In summary, Sentry Industries has positioned the Sentry 2.0 as a cutting-edge solution in the realm of security technology. With its AI capabilities, user-friendly interface, integration versatility, data protection measures, and advanced reporting, Sentry 2.0 addresses the diverse needs of today's security landscape, setting a new standard for security solutions.
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