Fisher Scientific Isotemp 228 Digital Water Bath
Temperature Range
Ambient to 100°C
Temperature Uniformity
±0.24°C at 37°C
Capacity
28L
- 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
|
Temperature Range |
Ambient to 100°C |
|
Temperature Uniformity |
±0.24°C at 37°C |
|
Control |
Digital |
|
Capacity |
28L (7.4 gal) |
|
Bath Dimensions (L x W x D) |
11.75 x 19.75 x 8 in (30 x 50 x 20 cm) |
|
Electrical Requirements |
120V, 60Hz, 8.5A |
| Temperature Control | ±0.1°C |
| Temperature Stability | ±0.5°C at 37°C |
- 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 |
Fisher Isotemp 228 Manual
Click Here to View all the Technical Specs for the Isotemp 228


Click Here to View the Technical Specs for the Isotemp 228