Refrigerated And Heating Circulator LB-20RHC – Laboratory Temperature Control System


Refrigerated and Heating Circulator LB-20RHC provides precise temperature control from –20°C to +100°C with ±0.1°C stability. PID-controlled circulation ensures uniform heating and cooling for laboratory samples, reaction vessels, and external instruments across chemical, pharmaceutical, and material testing applications.”

Product Snapshot

Attribute

Details

Product Name

Refrigerated and Heating Circulator

Model Number

LB-20RHC

Product Type

Temperature Control Equipment

Used For

Maintaining precise temperature for laboratory cooling and heating applications

Industries

Chemical, Pharmaceutical, Biotechnology, Material Testing, Research Laboratories

Alternative Equipment

Refrigerated Circulator Bath, Heating Circulator Bath, Constant Temperature Bath

Warranty

1 Year Standard Warranty

Support

Technical documentation and calibration guidance available


What Is This Product Used For?

 Refrigerated and Heating Circulator LB-20RHC is used to maintain precise temperature control for laboratory processes that require stable thermal conditions. It supports external and internal temperature regulation for analytical instruments, viscometers, photometers, and reaction vessels. This ensures accuracy in temperature-dependent testing and process control across various research and industrial applications.


Industries That Use This Product

This circulator system is used in laboratory and industrial environments where accurate temperature regulation is critical, including:

  • Pharmaceutical and chemical testing laboratories

  • Biotechnology and life science research centers

  • Material testing and calibration facilities

  • Petrochemical and viscosity analysis laboratories

  • Food and beverage testing units

These sectors utilize the system for maintaining constant temperature during experimental and production processes.


How Does Refrigerated and Heating Circulator LB-20RHC Work?

Refrigerated and Heating Circulator LB-20RHC system operates by circulating temperature-controlled fluid through an insulated bath and, if needed, through external instruments via a closed-loop circuit. It integrates both heating and refrigeration systems managed by a digital PID controller to ensure rapid temperature adjustments and stable operation. The circulation pump ensures consistent fluid flow and uniform temperature distribution across the bath and external applications.


Core Functional Capabilities

Key operational capabilities of Labotronics LB-20RHC include:

  • Dual-function capability for both heating and cooling operations

  • Digital PID controller for precise temperature management

  • High-efficiency circulation system for uniform temperature control

  • Wide temperature range supporting multiple laboratory applications

  • Over-temperature and low-level protection systems for enhanced safety

  • Compatible with external devices such as viscometers, calorimeters, and spectrophotometers

These features support accurate and reproducible temperature control in laboratory and industrial testing environments.


Technical Specifications

Parameter

Specification

Temperature Range

–20°C to +100°C

Temperature Stability

±0.1°C

Bath Capacity

20 liters

Controller Type

Digital PID controller

Circulation Flow Rate

10 L/min

Heating Power

1.5 kW

Cooling Capacity

300 W at 20°C

Display

LED digital display

Pump Type

Built-in circulation pump

Power Supply

220 V AC, 50 Hz

Dimensions (W × D × H)

400 × 500 × 850 mm

Weight

Approx. 45 kg


How to Choose This Refrigerated and Heating Circulator

This product is suitable when:

  • Temperature-controlled processes are required between –20°C and +100°C

  • Both cooling and heating functions are necessary within a single system

  • Uniform temperature is needed for internal and external applications

  • Laboratory instruments require precise temperature stability

  • Continuous circulation and safety monitoring are essential

It is ideal for analytical, chemical, and physical testing laboratories that perform viscosity, reaction, and calibration experiments.


Alternative Equipment for This Product

Depending on operational requirements, complementary or alternative systems may include:

  • Refrigerated Circulators for applications focused on cooling below ambient temperature

  • Heating Circulators for temperature control above room temperature

  • Constant Temperature Baths for maintaining stable temperatures in stationary samples

Each option supports specific laboratory temperature management needs.


Frequently Asked Questions About Refrigerated and Heating Circulator LB-20RHC

  1. How does this circulator maintain a stable temperature?
    It uses a digital PID controller with integrated heating and refrigeration systems to deliver precise temperature regulation and uniform distribution.

  2. Can it be used for both internal and external temperature control?
    Yes, it supports both internal bath circulation and external temperature regulation through a closed-loop system.

  3. What is the temperature range of this model?
    It operates between –20°C and +100°C with ±0.1°C stability.

  4. Is this model compatible with analytical instruments?
    Yes, it can be connected to viscometers, refractometers, calorimeters, and other laboratory instruments.

  5. What safety protections are included?
    The unit includes over-temperature protection, low fluid level alarms, and automatic power cut-off.

  6. Can it be used in continuous operation?
    Yes, the design supports stable and continuous operation in laboratory environments.


Typical Application Scenarios

  • Controlling temperature for viscometer and refractometer measurements

  • Cooling reaction vessels in chemical laboratories

  • Maintaining constant temperature for calorimetric and photometric analyses

  • External temperature regulation for analytical equipment

  • Research on temperature-dependent material properties


Compliance and Standards

Labotronics LB-20RHC supports laboratory temperature control programs aligned with:

  • ASTM D445 – Viscosity measurement of transparent and opaque liquids

  • ISO 3104 – Kinematic viscosity determination

  • ISO/IEC 17025 – General requirements for testing and calibration laboratories


Internal Linking Opportunities

Section

Suggested Links

Parent Category

Bath and Circulator

Related Products

Heating Circulator LB-15HC, Refrigerated Circulator LB-25RC

Buying Guides

Guide to Selecting Laboratory Circulators and Temperature Baths

Technical Articles

Understanding PID Temperature Control in Laboratory Equipment


Comparison Table 

Feature

LB-20RHC

Refrigerated Circulator Bath

Heating Circulator Bath

Constant Temperature Bath

Temp Range

–20°C to +100°C

–40°C to +80°C

Ambient to +100°C

Ambient to +90°C

Accuracy

±0.1°C

±0.1°C

±0.2°C

±0.1°C

Bath Capacity

20 L

10–25 L

5–20 L

20 L

Circulation

Internal / External

Internal

Internal

Internal

Typical Use

Sample conditioning, instrument control, reaction vessels

Cooling-only lab operations

Heating-only lab applications

Stationary sample stabilization


Quick Summary 

Labotronics LB-20RHC provides dual-range temperature control from –20°C to +100°C with ±0.1°C stability. PID-controlled circulation ensures uniform heating and cooling for laboratory instruments, samples, and reaction vessels. Applications include viscosity testing, calorimetric analysis, chemical reactions, and external temperature regulation in pharmaceutical, chemical, and material testing laboratories


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