Preheating and pan placement

Preheat the oven if the recipe calls for it. To preheat, set the oven at the correct temperature. Preheating is necessary for good results when baking cakes, cookies, pastry and breads.

For ovens without a preheat indicator light or tone, preheat 10 minutes.

Baking results will be better if baking pans are centered in the oven as much as possible. Pans should not touch each other or the walls of the oven. If you need to use two racks, stagger the pans so one is not directly above the other, and leave approximately 112″ between pans, from the front, back and sides of the wall.

Aluminum foil

You can use aluminum foil to line the broiler pan and broiler grid. However, you must mold the foil tightly to the grid and cut slits in it just like the grid.

Aluminum foil may also be used to catch a spillover.

Never entirely cover a rack with aluminum foil. This will disturb the heat circulation and result in poor baking.

A smaller sheet of foil may be used to catch a spillover by placing it on a lower rack several inches below the food.

Cut slits in the foil just like the grid.

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GE ZEK938, ZEK958 owner manual Preheating and pan placement, Aluminum foil

ZEK938, ZEK958 specifications

The GE ZEK958 and ZEK938 are advanced digital relays designed for protecting and monitoring electrical power systems. These devices are part of GE's broader line of protective relays, which harness cutting-edge technology to ensure reliable performance and robust protection for critical electrical assets.

One of the main features of the GE ZEK958 and ZEK938 is their comprehensive protection capabilities. Both models offer multifunctional protection, including overcurrent, earth fault, and distance protection. They are adept at detecting and isolating potential faults, which can prevent equipment damage and enhance system reliability.

The ZEK958 model is particularly noted for its advanced communication protocols. It supports multiple communication standards, including IEC 61850, DNP3, and Modbus, allowing for seamless integration into modern substation automation systems. This connectivity capability ensures that real-time data can be shared across various systems, facilitating enhanced monitoring and control.

Conversely, the GE ZEK938 is designed for applications that require high-speed tripping and resilience in harsh environments. It caters to the needs of utilities and industries where rapid fault detection is crucial. The ZEK938 features robust housing and is rated for demanding conditions, ensuring consistent performance even in challenging environments.

Both models feature intuitive user interfaces that simplify setup and operation. They come equipped with large displays and user-friendly navigation, allowing operators to configure settings easily and access critical information without extensive training. Additionally, advanced diagnostic capabilities provide detailed fault records and event logs, enabling effective troubleshooting and maintenance.

In terms of technology, both the ZEK958 and ZEK938 utilize digital signal processing to offer superior precision and reliability. This technology helps to eliminate noise and enhance the accuracy of measurement, a critical aspect in power system protection. Furthermore, they incorporate sophisticated algorithms to differentiate between various types of faults, ensuring that the right corrective action is taken swiftly.

In summary, the GE ZEK958 and ZEK938 digital relays stand out for their robust protection features, versatile communication capabilities, and resilience in challenging conditions. They are engineered for modern electrical systems, combining advanced technology with user-friendly design to meet the demands of utility and industrial applications. With these relays, operators can achieve enhanced reliability, improved efficiency, and greater control over their electrical assets.