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Fisher Scientific Isotemp 228 Digital Water Bath
Temperature Range
Ambient to 100°C
Temperature Uniformity
±0.24°C at 37°C
- Designed with unique fins to keep hands away from hot vapors, allowing for safer and easier opening.
- Microprocessor control ensures precise temperature regulation and reliable, trouble free operation.
- Plastic rim that remains cool even when operating at maximum temperature for enhanced safety.
- Automatically tests vital circuitry upon activation for added reliability.
- Allows calibration adjustments to optimize accuracy for frequently used temperatures.
- Dual thermostats monitor temperature set point while a safety thermostat operates to minimize risk of overheating.
The Fisher Isotemp 228 Digital Water Bath features a microprocessor controlled water bath with a digital control/readout, volume 28 L, temperature up to 100°C, temperature uniformity 0.24°C at 37°C, stability 0.5°C at 37°C, 120 V. All of our equipment will be fully tested to perform at factory specifications before being shipped.
The Fisher Scientific Isotemp 228 Digital Water Bath includes:
- > Lid
- > Power Cord
- > Operator's Guide
- > Full 180 Day Parts and Labor Warranty
Fisher Scientific Isotemp 228 Digital Water Bath Specifications
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Temperature Range
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Ambient to 100°C
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Temperature Uniformity
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±0.24°C at 37°C
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Control
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Digital
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Capacity
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28L (7.4 gal)
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Bath Dimensions (L x W x D)
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11.75 x 19.75 x 8 in (30 x 50 x 20 cm)
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Electrical Requirements
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120V, 60Hz, 8.5A
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Temperature Control
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±0.1°C
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Temperature Stability
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±0.5°C at 37°C
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Fisher Isotemp 228 Manual
 Click Here to View all the Technical Specs for the Isotemp 228
Fisher Isotemp 228 Water Bath
- 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
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Task
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Completed?
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Remarks?
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Confirm power supply and PCB output stable, correct voltages across circuits
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Completed
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Inspect display for dim, flickering, or dead pixels; replace for clarity
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Completed
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Verify functionality of all buttons, knobs, and switches for responsive control
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Completed
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Inspect water reservoir for holes, rust, or structural damage
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Completed
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Fill reservoir with water; check for external or internal leaks
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Completed
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Examine lid for wear or damage; replace hinges or handles as needed
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Completed
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Inspect for internal leaks from water reservoir to confirm plumbing integrity
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Completed
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Check internal wiring for damage; replace underperforming components for safety
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Completed
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Examine internal insulation for burns, breaks, or deterioration; replace as needed
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Completed
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Confirm feet are intact and bath is balanced on flat surface
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Completed
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Calibrate temperature accuracy and uniformity with NIST-traceable probe
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Completed
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Perform cosmetic inspection to confirm quality of external surfaces and finishes
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Completed
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To View More of Our Recertification Protocol Click Here
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