Lincoln Series 1200, Series 1000 service manual TRANSFORMER12.6V

Page 9

 

oven start and cool down relay. Its normally open contacts close, supplying 220 VAC

 

to the Burner Switch and enabling the 20-minute Time Delay module. The 20-minute

 

Time Delay module supplies 120 VAC to the oven fan motor relay, these normally

 

open contacts now close, supplying 220 VAC to the Oven Fan Motor.

TRANSFORMER(12.6V

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

AC)

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 normally open burner switch supplies 220 VAC through the oven air

 

pressure switch, the gas inlet pressure switch, the normally closed high limit

 

thermostat (opens at 368°C) to the ignition control. The combustion motor is now

 

energized. The normally open burner blower air pressure switch closes upon sensing

 

air pressure. After a pre-purge period of 30-60 seconds, the main gas valve and the

 

spark generator are energized. Ignition should now occur. After proving the pilot

 

flame, and a 30 second delay, the gas control relay and the burner indicator lamp are

 

energized.

TEMPERATURE

Closing the Fan Switch supplies (through the Step Down Transformer) 120 VAC to

CONTROL

the Temperature Control Board. The Temperature Potentiometer is adjusted to

 

desired temperature. The Thermocouple will provide varying millivolts to the

 

Temperature Controller. The Temperature Controller supplies 120 VAC to the

 

Solenoid Valve at intermittent intervals to maintain desired temperature. (An

 

electronic flame monitor proves main flame operation in the 1033-1034 models)

CONVEYOR DRIVE

Closing the Oven Fan Switch supplies 120 VAC, through the Power Transformer, to

 

the normally open Conveyor Switch. Closing the Conveyor Switch supplies 120 VAC,

 

through a 3 AMP Fuse, to the primary of the Conveyor Control Transformer. The

 

secondary of this Transformer supplies 10 VAC and 29 VAC to the Conveyor Control.

 

The conveyor control supplies voltage pulses to the Conveyor Control. The Conveyor

 

Control Potentiometer varies the frequency of these pulses. The motor speed will

 

increase or decrease, as the frequency of the pulses increase or decrease

 

respectively.

TIME TEMP DISPLAY

Closing the Oven Fan Switch supplies 120 VAC, through the Power Transformer, to

 

the primary of the Time/Temp. Transformer. The secondary output of the

 

Transformers, 12.5 to 15 VAC with a center tap, is supplies to terminals 1, 2, and of

 

the Time/Temp. Display. The display works on a balanced input, and the center tap

 

voltage to each leg must be 1/2 the total reading.The speed side of the Time/Temp.

 

Display is supplied, by the Conveyor Control, with the frequency of the pulses to the

 

Conveyor Motor. This frequency is converted by the Time/Temp. Display into a read

 

out of minutes and seconds. NOTE: The Conveyor Control uses a sensor and

 

magnet, mounted on the Conveyor Motor that senses when the motor is not turning. If

 

the motor is not turning, the Time/Temp Display will show --:-- in the window. The

 

temperature portion of the display uses a Thermistor Probe to sense oven

 

temperature. The Thermistor outputs a resistance proportional to oven temperature.

 

This resistance is then converted by the Display into a temperature reading.

 

OR:

 

The temperature portion of the display uses a "J" type thermocouple to measure oven

 

temperature. The thermocouple generates D.C. millivolts proportional to oven

 

temperature. This millivolt reading is then converted by the display into a temperature

 

reading.

Impinger I -–1000 Series Service Manual - International

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Contents Impinger Conveyor Ovens Table of Contents Burner Circuit Sequence of Operations 1002/1003Conveyor Drive 100 toSequence of Operations Sequence of Operations 1028 / 1029 / 1228 TemperatureHeat Circuit ControlTime Temp TIME/TEMP Sequence of OpertionsSequence of Operations / 1033, 1034, 1046 TRANSFORMER12.6V Model 1242 240V 50HZ Natural GAS/DUAL Belt Sequence of Operations 1042 / 1043 / 1242TIME/TEMP Schematic / 1002 Schematic / 1006 to Serial Numbers Q14279 Schematic / 1028, 1029, S/N Q19071 & below Schematic / 1028, 1029, S/N Q19078 & Above Schematic / 1030, to S/N Q17170 Schematic / 1030, S/N Q17171 & Above Schematic / 1032. S/N Q19077 & below Schematic / 1032, S/N Q19078 & Above Schematic / 1033, 1034, 1046 Schematic / 1042, 1043, S/N Q14279 & below Schematic / 1042, 1043, S/N Q14280 & Above Schematic / 1228 , S/N Q14790 & below Schematic / 1228, 1229, S/N Q14791 & Above Schematic / 1242 Symptom Possible Cause Evaluation Troubleshooting Guide 1000 & 1200 / GAS OvensJohnson Controls For ovens withIgnition Control Honeywell IgnitionControl FlameFor ovens with Temperature ControlMechanical ThermostatCode Symption Possible Cause Evualation Model 1030Page Page Page Page Page Page Page Troubleshooting Guide 1000 & 1200 Series / Electric Ovens Page Page Page Page Page Page Troubleshooting / GAS Ovens 1033, 1034, 1046 Page Page Page Page Page Page MOTOR, Main FAN REMOVAL, Installation & AdjustmentsCAPACITOR, Motor FAN, MainAbove GAS Above Electric Cool Down SwitchRELAY, D.P.S.T Cooling FAN, Control BOXBurner Blower Motor To Remove the Blower Wheel for Periodic Cleaning AIR Pressure SwitchBlower WHEEL, Burner Manifold PRESSURE-ADJUSTMENT Burner AssemblyManifold Pressure Adjustment GAS Control ValveTemperature Control Board Temperature Control Valve Robert ShawTemperature Control Potentiometer Replacement Solenoid ValveThermocouple Measurement Chart THERMOCOUPLE- ReplacementMercury Contactor Heating ElementIgnition Control 24V GND Flame SensorTransformer 120/24 VAC Burner IgnitorBurner Light 24 VAC GAS Ovens Heat Light 125 VAC Electric OvensConveyor Motor Replacement Baldor 1000 Series SN 4390 Conveyor Motor Replacement Bodine SNMain Orifice Burner Potentiometer Conveyor Speed ControlCoupling and Encoder Disc Optical Encoder AssemblyConveyor Motor Control Board TACH. GeneratorMotor Control Board Calibration SN 100 to 4389 Bodine SystemStyle 1 Control Board Adjustment REG MIN MAXMotor Control Board Style Style 2 and Style 3 Control Board AdjustmentStyle DIP Switches Control Switch Position OFF Mini Circuit Breaker Reversing Conveyor DirectionBEARING, Conveyor Drive ENDBEARING, Conveyor SN 2164 and Above Hall Effect Sensor ReplacementTRANSFORMER-STEPPER Motor Control OLD StyleThermistor Replacement Temperature Gauge ReplacementOven Temperature TRANSFORMER, TIME/TEMP. DisplaySwitch Settings ALL 1000 & 1200 Series OvensType OFF Procedure for USE of TIME/TEMP. Simulator SWITCH, DISPLAY, SETDip Switch Switch Replacement FAN, HEAT, ConveyorSwitch Replacement FAN Switch Update GAS Valve Replacement and Adjustments High Limit Thermostat Replacement Ignition Control ReplacementSpark Generator Replacement Solenoid Valve ReplacementPilot Light 220V Replacement Burner Alarm Light ReplacementIgniter Sensor Assembly Replacement Burner Blower Motor ReplacementTemperature Control Replacement Relay ASSEMBLY, Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Time Delay RELAY, 20 Minute ReplacementLetter Description Parts / Model Series 1000 & 1200 GeneralBlow UP / 1000, 1200 General Parts / Model 1002-1003 , S/N 2584 to Blow UP / 1002, 1003 S/N 2584 to See Parts / Model 1002-1003, S/N 4390 & UPBlow UP / 1002, 1003 S/N 4390 & Above See Parts / ModelBlow UP Parts Blow UP / 1028, 1029 PARTS/ Model Blow UP Parts / 1042 BLOW-UP / 1042 Parts / 1033, 1034, 1046 BLOW-UP / 1033, 1034, 1046 Parts Blow UP / 1228 Parts / 1242 Blow UP / 1242 Parts / Oven Back GAS Blow UP / Oven Back GAS Parts / Oven BACK- Electric Blow UP / Oven Back Electric Parts / Conveyor Motor Assembly S/N 4390 & Above Blow UP / Conveyor Motor Assembly S/N 4390 & Above Parts / Series 1000 Conveyor Blow UP / Series 1000 Conveyor Parts / Series 1200 Conveyor Control Blow UP / Series 1200 Conveyor Control Parts / Series 1200 Conveyor Blow UP / Series 1200 Conveyor 112

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.
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