Buchi B-490 Heating Bath

Features

• Corrosion-resistant PTFE coating for durability.
• Includes an insulated outer wall and two overtemperature shutoffs for added safety.
• Equipped with a digital LED display for real-time temperature monitoring and setpoint adjustments.
• Designed for use with R-200 and R-205 Rotavapor Systems.
• Analog for user-friendly operation.
• Maintains ±1°C accuracy at 20°C to 100°C and ±2°C at 100°C to 180°C.

The Buchi B-490 Heating Bath can accommodate evaporating flasks ranging in size from 50 to 3000mL, with an overall holding capacity of 5L. This heating bath can be adjusted from 20° to 180°C and has a temperature accuracy of + 1ºC, making it suitable for high/low boiling solvents. The Buchi B-490’s aluminum heating pan features a corrosion-resistant PTFE coating and, for added safety, an insulated outer wall and two overtemperature shutoffs. The waterbath features a digital LED display, which shows real-time temperature and setpoint. (The B-490 is for use with and included in evaporating systems R-200 and R-205.)

All of our equipment is fully tested to perform at factory specifications before being shipped.

Buchi B-490 Heating Bath Specifications

Water Bath Inspection and Recertification Checklist

• Confirm power supply and PCB are outputting stable, correct voltages across all essential circuits to ensure reliable operation
• Inspect the display for any dim, flickering, or dead pixels, replacing any compromised sections to maintain full clarity and accurate readouts
• Verify that all buttons, knobs, and switches are functioning properly, providing precise and responsive control across all settings
• Conduct a thorough inspection of the water reservoir for any holes, rust, or other structural damage that may impact its integrity
• Fill the reservoir with water, checking closely for any external or internal leaks that could affect performance
• Examine the lid for any signs of wear or damage, replacing hinges and handles if necessary to ensure a secure and proper seal
• Inspect for any internal leaks originating from the water reservoir, confirming the unit’s internal plumbing integrity
• Conduct a comprehensive inspection of internal wiring for any breakages, tears, or wear; replace any underperforming or damaged components to maintain safe operation
• Examine internal insulation for signs of burns, breaks, or deterioration, replacing as needed to ensure thermal efficiency and safety
• Confirm that all feet are intact and that the bath sits level and balanced on a flat surface to prevent movement or instability
• Calibrate both temperature accuracy and uniformity using a NIST-traceable temperature probe, verifying compliance with specification standards
• Perform a detailed cosmetic inspection to confirm that all external surfaces and finishes meet aesthetic and quality standards

Technician Inspection and Recertification Checklist: Water Bath

The Following Checklist Is to Be Performed on All Incoming and Outgoing Pieces of Equipment

Task	Completed?	Remarks?
Confirm power supply and PCB output stable, correct voltages across circuits	Completed
Inspect display for dim, flickering, or dead pixels; replace for clarity	Completed
Verify functionality of all buttons, knobs, and switches for responsive control	Completed
Inspect water reservoir for holes, rust, or structural damage	Completed
Fill reservoir with water; check for external or internal leaks	Completed
Examine lid for wear or damage; replace hinges or handles as needed	Completed
Inspect for internal leaks from water reservoir to confirm plumbing integrity	Completed
Check internal wiring for damage; replace underperforming components for safety	Completed
Examine internal insulation for burns, breaks, or deterioration; replace as needed	Completed
Confirm feet are intact and bath is balanced on flat surface	Completed
Calibrate temperature accuracy and uniformity with NIST-traceable probe	Completed
Perform cosmetic inspection to confirm quality of external surfaces and finishes	Completed

102 Tide Mill Road, Hampton NH 03842
customerservice@marshallscientific.com | (603) 601-8511 |
www.marshallscientific.com
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