barnstead thermolyne furnace manual

The Barnstead Thermolyne Furnace is a high-temperature laboratory furnace designed for various heating applications including ashing, annealing, drying, and heat treatment. It features precise temperature control, durable heating elements, ceramic fiber insulation, digital display, programmable temperature settings, safety overtemperature protection, and durable stainless steel chamber. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Operating Procedures 7. Temperature Programming 8. Safety Features 9. Maintenance & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital temperature controller, heating chamber, heating elements, insulation, overtemperature protection, power switch, temperature display.

Feature	Description
Digital Controller	Precise temperature control and programming
Heating Chamber	Stainless steel construction for durability
Heating Elements	High-temperature resistant elements
Ceramic Insulation	Efficient heat retention and energy saving
Overtemperature Protection	Safety cutoff to prevent overheating
Power Switch	Main power control
Temperature Display	Digital readout of current temperature
Programmable Settings	Multi-step temperature programming
Door Safety Switch	Interlock for operator safety
Ventilation Ports	For controlled atmosphere applications

Installation

Unpack and inspect contents. Place on stable, level surface.

Location: Place in well-ventilated area away from flammable materials.
Power Connection: Connect to appropriate voltage outlet (check specifications).
Grounding: Ensure proper grounding for safety.
Clearance: Maintain minimum clearance of 6 inches on all sides.

WARNING! Furnace reaches high temperatures; ensure proper ventilation and clearance. Use heat-resistant gloves when handling.

First-Time Setup

Power on furnace; follow initial setup procedure.

Initial Burn-off: Run empty at 400°C for 2 hours to remove manufacturing residues.
Temperature Calibration: Verify temperature accuracy with calibrated thermometer.
Controller Setup: Set temperature units (Celsius/Fahrenheit).
Safety Check: Test overtemperature protection function.

CAUTION! Always wear appropriate personal protective equipment when operating furnace.

Specifications

Temperature Range: Up to 1200°C (model dependent)
Chamber Size: Various sizes available
Power Requirements: 120V/240V AC, 50/60Hz
Heating Rate: Programmable ramp rates
Controller: Digital PID control
Insulation: Ceramic fiber
Exterior: Powder-coated steel
Safety: Overtemperature protection, door safety switch
Warranty: 1-year limited warranty

Controls and Settings

Access control via front panel digital controller.

Controller Functions: POWER, SET TEMP, PROGRAM, ENTER, UP/DOWN arrows, DISPLAY.

Temperature Settings: Set point, ramp rate, hold time. Safety: Overtemperature limit, door interlock. Display: Current temperature, set temperature, program status. Programming: Multi-step programs with ramp and hold functions.

Operating Procedures

Standard operating procedure for furnace use.

Preparation: Load samples using appropriate crucibles or containers.
Programming: Set desired temperature program if required.
Start: Close door securely and start heating cycle.
Monitoring: Monitor temperature display during operation.
Completion: Allow furnace to cool before opening door.
Unloading: Use heat-resistant gloves to remove samples.

Tip: Always allow furnace to cool below 100°C before opening door for extended chamber life.

Temperature Programming

Multi-step temperature programming capability.

Access Program Mode: Press PROGRAM button.
Set Steps: Program ramp rate, target temperature, hold time for each step.
Save Program: Store program for future use.
Run Program: Select and execute stored program.
Pause/Stop: Ability to pause or stop program during operation.

WARNING! Do not open door during high-temperature operation. Wait for furnace to cool.

Safety Features

Overtemperature Protection: Automatic cutoff at safety limit. Door Safety Switch: Prevents operation when door is open. Grounding: Three-prong plug for proper grounding. Thermal Insulation: Prevents exterior from reaching dangerous temperatures.

Maintenance & Cleaning

Unplug before maintenance. Clean chamber with soft brush or vacuum. Exterior cleaning with damp cloth only.

CAUTION! Do not use water or cleaning solvents inside chamber. Allow complete cooling before cleaning.

Regulatory Information

UL Listed; CSA Certified. Complies with laboratory safety standards. Copyright © Barnstead Thermolyne; trademarks of Thermo Fisher Scientific. For technical support, visit www.thermofisher.com or contact 1-800-522-2253.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace not heating	Power supply/controller	Check power connection; verify controller settings; check fuses.
Temperature inaccurate	Calibration/sensor	Recalibrate temperature; check thermocouple connection.
Door won't close properly	Obstruction/latch	Remove obstructions; check door latch mechanism.
Error codes displayed	Controller fault	Refer to error code chart in manual; reset controller.
Overheating	Ventilation/controller	Ensure proper ventilation; check overtemperature protection.

Reset: Power cycle unit if controller locks up.

Service: 1-800-522-2253; www.thermofisher.com