Manual Furnace Nabertherm

The Nabertherm furnace is a high-performance industrial heating system designed for various thermal processing applications. It features precise temperature control, robust construction, multiple heating zones, programmable controllers, safety interlocks, energy-efficient insulation, and compatibility with various atmospheres. Operating on standard industrial power supplies, below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Heating chamber, Control panel, Temperature controller, Safety thermocouple, Power supply connections, Atmosphere gas inlets, Exhaust system.

Installation

Unpack and inspect all components. Place on level, stable surface with adequate clearance.

1. Position furnace: Ensure minimum 12-inch clearance on all sides for ventilation.
2. Connect power supply: Use appropriate industrial power cables rated for furnace specifications.
3. Connect atmosphere system: Attach gas lines if using protective atmospheres.
4. Connect exhaust: Install proper ventilation ducting as required.
5. Ground connection: Ensure proper electrical grounding for safety.

WARNING! Furnace operates at extremely high temperatures; ensure proper installation to prevent fire hazards and personal injury.

First-Time Setup

Power on furnace; follow initial setup procedure.

1. Initial burn-off: Run empty chamber at 200°C for 2 hours to remove manufacturing residues.
2. Program controller: Set temperature units (Celsius/Fahrenheit), date, and time.
3. Calibrate thermocouples: Verify temperature accuracy using reference thermocouple.
4. Test safety features: Verify door interlock and over-temperature protection function.
5. Create heating profiles: Program standard operating temperature ramps and holds.

CAUTION! Always wear appropriate personal protective equipment during setup and operation.

Specifications

• Maximum Temperature: 1200°C / 2200°F
• Chamber Dimensions: Various sizes available
• Power Requirements: 380-480V AC, 3-phase, 60Hz
• Heating Rate: Programmable up to 10°C per minute
• Temperature Uniformity: ±5°C throughout chamber
• Controller: Digital PID with RS-232/485 interface
• Atmosphere Capability: Air, nitrogen, argon compatible
• Insulation: Ceramic fiber with low thermal mass
• Cooling: Natural or forced air cooling options

Controls and Settings

Access control functions via front panel or remote interface. Main Controls: POWER, TEMPERATURE SET, PROGRAM, START/STOP.

Controller Functions: Temperature programming, Ramp rates, Hold times, Cooling cycles, Alarm settings, Data logging.

Temperature Control: Setpoint, Actual temperature, Program status, Heating rate. Safety: Over-temperature protection, Door interlock, Power failure recovery, Alarm history. Programs: Multiple program storage, Step programming, Segment linking, Program copying.

Connecting Peripheral Devices

External thermocouples: Additional measurement points. Data loggers: For process recording. Atmosphere controllers: For gas flow regulation.

1. Turn off furnace before connecting external devices.
2. Use appropriate connectors and cables rated for high temperatures.
3. Configure controller to recognize peripheral devices.
4. Test all connections before operation.

Tip: Always verify peripheral device compatibility before connection.

Operating Procedures

Standard operation for thermal processing applications.

1. Load material: Place workpieces on suitable trays or fixtures.
2. Close door: Ensure proper seal and door interlock engagement.
3. Select program: Choose appropriate heating profile for material.
4. Start cycle: Press START; monitor temperature ramp.
5. Monitor process: Watch for proper temperature progression.
6. Complete cycle: Allow proper cool-down before opening door.
7. Unload: Use appropriate handling tools for hot materials.

WARNING! Never open door during high-temperature operation. Always allow proper cooling before accessing chamber.

Safety Features

Over-temperature Protection: Independent safety thermocouple with automatic shutdown. Door Interlock: Power cutoff when door opens. Emergency Stop: Immediate power interruption. Ground Fault Protection: Electrical safety monitoring.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and safety.

1. Daily: Visual inspection, temperature verification
2. Weekly: Chamber cleaning, door seal inspection
3. Monthly: Thermocouple calibration, electrical connection check
4. Annually: Comprehensive inspection by qualified technician

CAUTION! Always disconnect power before performing maintenance. Use appropriate PPE during cleaning.

Regulatory Information

CE Certified: Complies with European safety standards. UL Listed: Meets North American safety requirements. ISO 9001: Quality management system certified. RoHS Compliant: Restriction of hazardous substances. For technical support, contact Nabertherm service department or visit www.nabertherm.com.

Troubleshooting

Reset Procedure: Controller menu > System > Reset to factory defaults if needed.

Service Contact: Nabertherm Technical Support: +49 (0) 4201 809 0; [email protected]