Callendar & Barne's Apparatus ( Continuous Flow)
Product Code : SCL-MH-11966
The Continuous Flow Calorimeter (Callendar and Barnes’ Method) is an engineered educational instrument for the empirical determination of the electrical equivalent of heat and the specific heat capacity of liquids. Designed for undergraduate and advanced vocational physics laboratories, it adheres to IEC 61010-1 safety requirements and utilizes ASTM E287 compliant glassware for volumetric accuracy. This apparatus facilitates high-precision steady-state thermal measurements, eliminating the cooling correction variables inherent in traditional static calorimetry.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Primary Measuring Tube |
Horizontal Borosilicate 3.3 Glass (low expansion), 360mm - 400mm length |
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Heating Element |
Axial Ni-chrome or Manganin spiral coil; high-stability resistive alloy |
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Housing Construction |
Felt-lined kiln-dried hardwood or tropicalized polymer-coated manifold |
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Fluid Management |
Constant-level head tank with adjustable flow-rate stabilization |
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Temperature Interface |
Dual vertical thermometer ports with rubber bung or silicone seal interfaces |
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Electrical Interface |
4mm shrouded safety terminals; 0–12V DC, 4A rating |
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Insulation Grade |
High-density felt/ceramic wool cladding for minimized parasitic heat loss |
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HS Code |
9027.80.20 (Calorimeters) |
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Compliance Standard |
ISO 9001:2015 (Manufacturing), IEC 61010 (Electrical Safety) |
Key Pedagogical Outcomes
Feature: Continuous Flow Manifold .Outcome: Students achieve thermal equilibrium (steady-state), allowing for the application of the First Law of Thermodynamics without complex Newton’s Law of Cooling corrections.
Feature: Precision Ni-chrome Axial Heater .Outcome: Facilitates direct correlation between electrical energy input and thermal energy gain, supporting the Joule Heating module in Thermodynamics.
Feature: Dual-Port Thermometry System. Outcome: Enables real-time measurement of temperature differential , fostering analytical skills in differential calculus and error analysis.
Feature: Variable Head Flow Control. Outcome: Allows students to manipulate mass flow rates to verify the consistency of the electrical equivalent of heat across different experimental parameters.
International Logistics & Compliance
Our global distribution network ensures that all instruments are delivered with export-grade, seaworthy crating (ISPM-15 compliant) to prevent transit damage and biological contamination. Documentation packages provided with each shipment include the Manufacturer’s Authorization Form (MAF), detailed IQ/OQ (Installation/Operational Qualification) protocols, and localized English-language technical manuals. The apparatus features a tropicalized design, utilizing moisture-resistant wood treatments or non-hygroscopic materials tested for sustained operation in environments up to 45°C and 90% humidity.
Why Source from the OEM?
As an Original Equipment Manufacturer, we maintain full vertical integration of the production cycle. Unlike traders, our facility manages in-house glass blowing for the Borosilicate 3.3 reaction tubes and precision winding of heating spirals to ensure uniform resistance. Every unit is batch-tested for thermal leakage and electrical continuity prior to dispatch. Procurement through the OEM guarantees direct factory spares availability (including replacement heating elements and glass manifolds) and provides a direct line to the design engineers for technical support and curriculum integration.
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