TIME TEMP DISPLAY

The Time/Temp Display is energized when the Fan Switch is closed, supplying 120 VAC to the primary of the 12.6 volt Transformer. The secondary output of the transformer, normally 13 to 14 VAC (depending on input), with a center tap, is supplied to terminals 1,2, and 3 of the Time/Temp Display. The center tap is terminal

2.The display works on a balanced input and center tap voltage to each leg must be 1/2 the total reading.

The speed side of the Time/Temp. Display uses a slotted disc (cemented to tach. coupling) to break the infra-red light beam of the optical switch (mounted on gear motor) producing electrical pulses that are transmitted to the display. The display converts these pulses into a read-out of minutes and seconds.

The temperature portion of the display uses a Thermistor Probe to sense oven temperature. The thermistor outputs a resistance proportional to the oven temperature. This resistance is then converted by the display into a temperature reading.

 

 

SEQUENCE OF OPERATIONS 1106

 

MODEL 1006 - 240 VAC - 50HZ - 1 PHASE - NATURAL GAS

 

 

 

POWER SUPPLY

 

Electrical Power to be supplied to the Oven by a three conductor service.

 

 

Red conductor is Hot

 

 

Black conductor is Neutral

 

 

Green conductor is Ground

CONTROL BOX AUTO

 

When the temperature in the Control Box reaches 120°F + 3°, the Cooling Fan

COOL DOWN

 

Thermostat will switch power to the Control Box Cooling Fan. The Thermostat will

 

 

interrupt power to the Cooling Fan when the Control Box temperature falls to 100°F +

 

 

3°.

MAIN FAN CIRCUIT

 

Electrical power is permanently supplied to the normally open contacts of the Double

 

 

Pole Main Fan Relay, the Cooling Fan Thermostat, and through a 3A Fuse to the

 

 

normally open Double Pole Main Fan Switch, and the normally open Cool Down

 

 

Thermostat (thermostat closes at 160°F and opens at 140°F). Closing the Main Fan

 

 

Switch supplies 240 VAC to the primary of the control circuit Step Down

 

 

Transformer. (The transformer steps the voltage down to 120VAC for the control

 

 

circuit) 120 VAC is supplied to the coil of the Main Fan Relay. The coil of the Relay is

 

 

energized, the normally open contacts now close, energizing the Main Fan Motor

 

 

through one 10A fuse. Closing the Fan Switch also supplies power to the Cooling

 

 

Fan, the 12.6 VAC Transformer, the Burner and Conveyor Switches

TRANSFORMER (12.6

 

Upon closure of the Fan Switch, 120 VAC is supplied to the primary of the 12.6 VAC

VAC)

 

Transformer. The Transformer steps the voltage down to 12.6 VAC (normally 13 to

 

 

14 VAC) with a center tap, and supplies power to the Time/Temp Display. The

 

 

voltage from each leg of the Transformer©s secondary to the center tap should be

 

 

one half of the secondary voltage.

BURNER CIRCUIT

 

Closing the Fan Switch and the normally open Burner Switch supplies 120 VAC

 

 

through the Air Pressure Switch, to the normally open contacts of the Burner Motor

 

 

Relay, and the primary of the 24 VAC Step Down Trans-former. The Transformer

 

 

secondary supplies 24 VAC to the coil of the Burner Motor Relay (the normally open

 

 

contacts close within 30 seconds), and through the Burner Air Pressure Switch to the

 

 

normally open Centrifugal Switch. When the Relay contacts close, the Burner Blower

 

 

Motor is energized. As this motor reaches approximately 1600 R.P.M., the Burner Air

 

 

Pressure Switch closes, and the motor©s internal centrifugal switch closes supplying

 

 

24 VAC to the Gas Control Valve. When the Gas Control Valve is supplied with 24

 

 

VAC, the pilot valve is energized, and the igniter circuit is energized. Ignition should

 

 

now occur. After pilot flame is proven, the main gas valve is energized. The Burner

 

 

Indicator Light is also energized.

CONVEYOR DRIVE

 

Closing the fan switch and the normally open conveyor switch supplies 120 VAC to

(S/N 4390 AND UP)

 

the Motor Control Board .AC volts are converted to DC volts and are supplied to the

 

 

Conveyor Motor at terminals A+ and A-. Adjustment of the Speed Control

 

 

Potentiometer (5000 ohm 10 turn ) will change resistance at terminals P1, P2, and

 

 

P3 varying the DC voltage to the motor. The speed of the conveyor motor will

4

Impinger I -–1000 Series Service Manual - International

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Lincoln Series 1000, Series 1200 service manual Sequence of Operations

Series 1000, Series 1200 specifications

The Lincoln Series 1200 and Series 1000 are two distinguished models in the range of Lincoln Electric welding machines, epitomizing quality, versatility, and advanced technology for both industrial and residential welding applications.

The Lincoln Series 1200 is renowned for its robust build and high-performance capabilities. One of its main features is the ability to perform both MIG (Metal Inert Gas) and stick welding processes, making it a versatile option for various welding requirements. It incorporates an intuitive control panel that allows for easy settings adjustments, ensuring operators can swiftly adapt to different materials and thicknesses. The Series 1200 is equipped with a powerful drive system to provide smooth wire feeding, minimizing downtime due to jams or misfeeds. Additionally, its high-duty cycle support allows continuous operation, making it an ideal choice for professional welders and fabrication shops.

In terms of technology, the Series 1200 employs advanced inverter technology that enhances energy efficiency while reducing the machine’s overall weight. This results in portability without compromising power, making it a practical choice for on-site tasks. Moreover, the machine features an automatic voltage adjustment that optimizes performance based on the input voltage, ensuring reliable operation even under fluctuating power conditions.

On the other hand, the Lincoln Series 1000 is specifically designed for entry-level users and small projects. It shines with its user-friendly interface, which simplifies the welding process for beginners. This model typically includes pre-set parameters and an easy-to-read display, enabling novice operators to achieve excellent welds with minimal experience. Despite its entry-level focus, the Series 1000 does not skimp on performance, offering dependable results across various materials.

Both the Series 1200 and Series 1000 incorporate safety features, including thermal overload protection, ensuring that users can operate the machines with peace of mind. Their durable construction allows for prolonged use in tough work environments without sacrificing reliability.

In conclusion, the Lincoln Series 1200 and Series 1000 cater to a wide range of welding needs, from professional applications to home projects. Their respective features and technologies present options that can fit various skill levels while delivering exceptional welding performance and longevity. Whether you are a seasoned professional or a hobbyist, Lincoln Electric provides reliable solutions to meet your welding requirements.