Skip to content
LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details

Thermo SC150 immersion circulator

Fully Tested & Warrantied*
Brand : Thermo
Product Code : SKU 1493I_CIRC
Title: $1000.00

Shipping

All products ship from our 30,000 sq. ft. Haverhill, MA warehouse

Thermo Scientific Haake SC150 Immersion Circulator with S5P Bath

The Thermo Scientific Haake SC150 is a precision heated immersion circulator paired with a compact 5 L S5P bath for laboratory temperature-control applications. With temperatures up to 150°C, ±0.02°C temperature stability, and fluid circulation up to 17 L/min, the SC150 provides accurate and uniform temperature control for samples, vessels, calibration procedures, and compatible externally connected equipment.

Available used and refurbished from American Instrument Exchange, this Thermo SC150 circulating bath combines a self-tuning PID controller, programmable temperature setpoints, two-speed circulation pump, and multiple safety protections in a compact benchtop system. The smaller 5 L bath makes this configuration particularly useful for laboratories that need precise circulating temperature control without the footprint or fluid volume of a larger bath. A 90-day warranty is included.

Key Features

  • Maximum operating temperature of 150°C

  • Compact 5 L Haake S5P bath

  • ±0.02°C temperature stability

  • Maximum circulation flow rate up to 17 L/min

  • 1.2 kW heating capacity at 115 V

  • Self-tuning PID temperature control

  • Five programmable temperature setpoints

  • Two selectable pump speeds

  • Internal circulation for improved bath temperature uniformity

  • Low-liquid-level and overtemperature protection

  • USB communication port

  • Used, refurbished, and tested by American Instrument Exchange

  • 90-day warranty included

Overview

The Thermo Scientific Haake SC150 is a digital immersion circulator designed to heat and continuously circulate fluid within a laboratory bath. This particular system includes a Haake S5P bath with approximately 5 L capacity, providing a compact temperature-controlled working area for smaller samples and vessels.

Continuous circulation distinguishes the SC150 from a basic non-circulating water bath. Rather than relying primarily on natural convection to distribute heat, the integrated pump actively moves fluid throughout the reservoir. This helps minimize temperature gradients and supports consistent conditions throughout the working bath.

The SC150 controller uses self-tuning PID regulation to maintain the selected temperature and allows operators to store five frequently used setpoints. The controller also incorporates automatic shutdown protection for excessive temperature, low liquid level, or motor overload.

For laboratories that do not need the larger working volume of an SC150 paired with an A5B or other large-capacity bath, the S5P configuration offers the same precision controller in a more compact system.

Key Specifications

Specification Details
Manufacturer Thermo Scientific / Haake
Controller Model SC150
Bath Haake S5P
Equipment Type Heated immersion circulator / circulating bath
Bath Capacity 5 L
Maximum Temperature 150°C
Temperature Stability ±0.02°C
Maximum Pump Flow 17 L/min
Pump Speeds 2
Heating Capacity at 115 V Approx. 1.2 kW
Controller Self-tuning PID
Programmable Setpoints 5
Communications USB
Safety Features Low-liquid, overtemperature, and motor-overload shutdown
Safety Classification Class III / FL
Application Internal bath and compatible external circulation
Warranty 90 days

Common Applications

The Thermo SC150 with S5P bath is suitable for laboratory procedures requiring precise and stable elevated-temperature conditions. Typical applications include sample preparation, incubation, reagent warming, calibration procedures, materials testing, chemistry experiments, viscosity-related testing, and other temperature-sensitive laboratory methods.

Its compact bath is particularly convenient when working with smaller sample containers or when only a limited number of samples need to be maintained at temperature. Compared with a large circulating bath, the 5 L configuration also requires less heat-transfer fluid.

The SC150 can additionally support compatible external circulation applications, allowing conditioned fluid to be supplied to external laboratory apparatus when the application's flow and temperature requirements fall within the circulator's capabilities.

Ideal Laboratory Types

The Thermo Scientific SC150 is well suited for pharmaceutical, biotechnology, chemistry, clinical research, materials-science, quality-control, industrial, and academic laboratories.

The 5 L S5P configuration is particularly useful for laboratories where benchtop space is limited or where a large circulating bath would add unnecessary fluid volume and footprint. It can also serve as a dedicated temperature-control station for a specific test method or instrument.

Temperature Control & Stability

The SC150 provides specified temperature stability of approximately ±0.02°C under manufacturer-defined operating conditions. Continuous fluid circulation helps maintain consistent temperature throughout the bath while the self-tuning PID controller automatically regulates heater output as thermal conditions change.

The controller supports operating temperatures up to 150°C when paired with an appropriate bath and heat-transfer fluid. Five programmable setpoints allow commonly used operating temperatures to be stored for convenient recall.

Heat-transfer fluid selection becomes increasingly important at elevated temperatures. Water should only be used within an appropriate and safe temperature range. Applications approaching the SC150's maximum temperature require a compatible heat-transfer fluid designed for high-temperature circulation.

Ambient conditions, bath loading, fluid selection, external circulation, and other factors can influence actual temperature performance.

Circulation & Pump Performance

The Thermo SC150 provides fluid circulation up to approximately 17 L/min with two selectable pump-speed settings. Continuous circulation transfers heat efficiently throughout the S5P bath and helps minimize hot and cold zones around immersed samples.

Two pump settings allow circulation to be adjusted according to the application. Lower circulation can be useful when excessive turbulence is undesirable, while stronger circulation promotes more aggressive fluid movement and heat transfer.

The SC150 can also be configured to circulate temperature-controlled fluid through compatible external equipment. Actual external flow will depend on tubing length and diameter, fittings, fluid viscosity, operating temperature, elevation, and hydraulic resistance within the connected apparatus.

Refurbishment & Testing

This used Thermo Scientific Haake SC150 with S5P bath is refurbished and tested by American Instrument Exchange before shipment. Our technicians inspect the heater, circulation pump, controller, bath, electrical components, controls, alarms, and safety systems and operate the unit to verify proper functionality.

Temperature-controlled equipment is tested using NIST-traceable probes and data loggers. The system is operated under simulated laboratory conditions to verify heating, circulation, temperature regulation, controller operation, and general performance. The bath and fluid-contact areas are cleaned and inspected prior to shipment.

If your application requires operation at a specific temperature or has particular testing requirements, contact American Instrument Exchange before shipment. When practical, our technicians can incorporate customer-requested conditions into final testing.

A 90-day warranty is included with this refurbished Thermo Scientific circulator.

Choosing the Right Heated Circulating Bath

Bath capacity is an important consideration when selecting a laboratory circulating bath. A larger bath provides more room for samples and vessels, but it also occupies more benchtop space and requires a greater volume of heat-transfer fluid.

The SC150 with 5 L S5P bath is particularly appropriate for smaller-volume applications where precise temperature control is more important than large sample capacity. Laboratories processing larger vessels, multiple containers, or higher sample volumes may prefer an SC150 paired with a larger bath.

Temperature requirements should also be considered. This is primarily a heated circulator rather than a refrigerated system. Laboratories requiring routine operation substantially below ambient temperature should consider a refrigerated circulating bath instead.

American Instrument Exchange can help compare available used and refurbished laboratory circulators based on bath capacity, temperature range, stability, circulation requirements, and application.

Related Equipment

American Instrument Exchange stocks a variety of laboratory circulators, including heated immersion circulators, refrigerated circulating baths, recirculating chillers, and process temperature-control systems. Laboratories considering the SC150 may also want to compare available laboratory water baths, reactors and fermenters, evaporators and extractors, and other refurbished laboratory equipment.

Thermo Scientific Haake SC150 Frequently Asked Questions

What size bath is included with this Thermo SC150?

This particular SC150 is paired with a Haake S5P bath with approximately 5 L capacity, making it a compact alternative to larger SC150 circulating-bath configurations.

What is the maximum temperature of the Thermo SC150?

The SC150 controller supports operating temperatures up to 150°C when used with an appropriate bath and heat-transfer fluid.

How stable is the temperature in the Thermo SC150?

Thermo specifies temperature stability of approximately ±0.02°C under defined operating conditions. Continuous circulation also helps maintain uniform fluid temperatures throughout the bath.

What is the flow rate of the SC150?

The SC150 provides circulation up to approximately 17 L/min and offers two selectable pump-speed settings.

What is the difference between this SC150 and an SC150 with a larger bath?

The controller and its core temperature-control capabilities are similar, but the S5P configuration provides a smaller 5 L bath. This reduces the system's footprint and fluid requirements but also provides less working space for samples and vessels.

Can the SC150 circulate fluid through external equipment?

Yes. The SC150 supports compatible external circulation applications. Actual flow through external equipment depends on tubing, fittings, fluid properties, temperature, and the resistance of the connected system.

Can I use water up to 150°C in the SC150?

No. The SC150 controller can support temperatures up to 150°C, but water is not appropriate across that entire range. Higher-temperature applications require a compatible heat-transfer fluid selected for the intended operating conditions.

Does this refurbished Thermo SC150 include a warranty?

Yes. This used Thermo Scientific Haake SC150 is refurbished and tested by American Instrument Exchange and includes a 90-day warranty.

Testing Procedures for Used and Refurbished Laboratory Equipment

Ensure Accuracy, Safety, and Dependable Performance Across Applications

At American Instrument Exchange, all used and refurbished laboratory equipment undergoes a rigorous, multi-point testing protocol to ensure optimal performance, operational safety, and long-term reliability. Whether the equipment is destined for research, diagnostics, quality control, or production environments, our thorough inspection and testing process is designed to meet the highest standards of laboratory excellence.

Why Testing Used Lab Equipment Is Essential

Before any refurbished laboratory equipment is returned to service, it must be carefully tested to verify:

• Functional integrity and operational performance
• Setpoint accuracy and repeatability (where applicable)
• User interface responsiveness and control features

Proper testing reduces the risk of equipment failure, measurement inaccuracies, or user hazards—helping to ensure consistent results in clinical, academic, biotech, and industrial labs.

Our standardized lab equipment testing procedures are tailored to each equipment type, ensuring every unit meets manufacturer specifications and industry benchmarks.

Key Testing Procedures for Refurbished and Used Laboratory Equipment

1. Initial Visual Inspection

• Examine equipment housing for signs of wear, corrosion, or damage
• Check ports, power cords, and exterior components for tampering or deterioration
• Verify that internal and external parts (racks, shelves, connectors, accessories) are present and undamaged

2. Functional Startup and Operational Testing

• Power on the equipment and verify startup diagnostics
• Confirm functionality of displays, buttons, switches, and control panels
• Run basic functions to confirm proper response and behavior under standard operating conditions

3. Testing and Performance Verification

• Test internal sensors or control systems using industry-standard tools
• Perform operational tests to validate accuracy and consistency
• Verify key performance specifications such as temperature control, timing, speed, or measurement outputs, depending on equipment type

4. Mechanical and Electrical System Testing

• Evaluate motors, pumps, fans, or other moving parts for smooth operation
• Inspect and test wiring, relays, fuses, and circuit boards for safety and reliability
• Test power delivery and grounding compliance

5. Safety and Compliance Checks

• Ensure equipment is grounded and insulated to meet laboratory safety standards
• Test alarms, interlocks, emergency stops, or safety shutdown systems if applicable

6. Final Quality Assurance and Documentation

• Perform extended runtime testing
• Document operational logs, testing results, and any repairs or adjustments made
• Complete a final inspection, thorough cleaning, and packaging for delivery

Trusted Quality from American Instrument Exchange

With over 50 years of experience in laboratory equipment refurbishment, American Instrument Exchange is committed to delivering certified, lab-ready instruments backed by expert testing. Our testing protocols ensure that each piece of equipment—regardless of type—is safe, accurate, and dependable from day one.

Whether you're equipping a startup lab or expanding a high-throughput facility, you can count on our refurbished laboratory equipment to perform with precision and reliability.

Refurbishment Protocol for Used Laboratory Equipment from American Instrument Exchange

At American Instrument Exchange, every piece of used laboratory equipment we offer undergoes a multi-step refurbishment process. Whether it's an analytical balance, centrifuge, freezer, oven, or any other essential lab instrument, our goal is to restore each unit to peak performance—ensuring accuracy, safety, and long-term reliability in scientific, clinical, industrial, and academic environments.

Why Choose Refurbished Lab Equipment from American Instrument Exchange?

• Thoroughly tested for performance, precision, and safety
• Backed by a warranty
• A cost-effective alternative to new equipment
• Environmentally sustainable through equipment reuse and waste reduction
• Serviced by expert technicians with decades of laboratory equipment experience

Step-by-Step Refurbishment Protocol

Every instrument and system refurbished at American Instrument Exchange follows a detailed, industry-aligned process:

1. Initial Intake & Inspection

• Complete visual and structural inspection for cosmetic damage, wear, or corrosion
• Mechanical assessment of hinges, seals, fasteners, motors, and moving parts
• Missing components and damaged items are documented for repair or replacement

2. Cleaning and Decontamination

• Full internal and external cleaning using non-abrasive, lab-safe solutions
• Removal of biological, chemical, or particulate contamination
• Disassembly and cleaning of removable parts such as trays, shelves, and filters

3. Mechanical and Electrical Repair

• Replacement or repair of worn or broken mechanical parts
• Evaluation and servicing of control panels, sensors, switches, and displays
• Testing and repair of electrical wiring, fuses, circuit boards, and power supplies

4. Functional System Testing

• Assessment of all major functions specific to the equipment type (e.g., speed, temperature, force, weight, timing)
• Operation of control interfaces, programming menus, and digital displays
• Verification of stabilization time, responsiveness, and user input reliability

5. Testing and Performance Verification

• Testing of internal sensors, controllers, and measurement systems using certified tools
• Multi-point testing to ensure repeatability, accuracy, and performance consistency
• Confirmation of user-defined setpoints, timing sequences, or programmable cycles

6. Safety and Compliance Checks

• Testing of safety interlocks, alarms, and over-limit protection systems (as applicable)
• Electrical safety inspections, including grounding and insulation verification

7. Final Quality Assurance and Documentation

• Full operational testing under simulated lab conditions
• Completion of performance benchmarks, testing  results, and repair logs
• Final cleaning and visual inspection

Trust the Experts at American Instrument Exchange

With over 50 years of experience in the laboratory equipment industry, American Instrument Exchange is a trusted leader in high-quality refurbished lab instruments. Our refurbishment protocols ensure that every piece of equipment we sell is lab-ready—offering the precision, performance, and durability your team can count on.

Whether you’re outfitting a new lab or expanding an existing operation, choose American Instrument Exchange for tested, warrantied, and cost-effective laboratory equipment.

Warranty Information

All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full.  American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,

Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”

Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.

Return & Cancellation Policy

American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted. 

Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.

Ongoing and Extended Support Options

American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.

For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.

For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.

How do you test and recondition the equipment?

Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.

How do products ship from American Instrument Exchange?

We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.

Return and order cancellation policy

American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.

Are discounts available for educational or non-profit institutions, or for bulk purchases?

Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.

How does your price matching policy work?

We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.

Can I see the equipment in person before committing to a purchase?

Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.

1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.

Can I ship products that I purchased elsewhere to American Instrument for repair?

Yes – please see our repair services page for more information.