Calorimeters, Automatic Calorimeters, Automatic Hydrocarbon Calorimeters, Fully Automatic Hermetic Calorimeters, Automatic HBP Calorimeters

• Fully indigenously developed.
• Multi-refrigerant capability
• Import Substitute.
• Competitively priced.
• Manufactured to international standards of excellence in accuracy, repeatability, design and manufacturing. Meets / Exceeds ISO 197 specifications. Confrims to ASHRAE / ARI.
• Secondary Refrigerant Calorimeter.
• Fully computerised Data Acquisition System.
• Automatic control of important parameters using PID controllers.
• PLC Based Data Acquisition System using National Instruments® Field Point Modules.
• Data Acquisition and Control Software in LabView® with Digital Dashboard for on-line display of important parameters, User scalable graphs for all parameters, excellent interface with MS Excel, Storage of historical data for future reference.

Technical Features:

• Multi Refrigerant capability viz. R134a, R22, R410A, R600A, CARE30 etc.
• Secondary Refrigerant Calorimeter method used. Corriolis mass-flow meter for cross- checking the compressor performance.
• Low, Medium and High back pressure conditions.
• Solid State PID Controllers for automatic control of parameters such as Suction Pressure, Discharge Pressure, Chamber Temperature, Calorimeter Outlet Temperature, Sub-cooled Liquid Temperature, Compressor Voltage, Secondary Pot ambient temperature. Thyristers for Secondary Pot heater modulation.
• On-line Measurement of Compressor Speed using accelerometers.
• Fully automated PC based Data Acquisition System with User Friendly Interface using National Instruments ® Hardware and LabView Software. The software has Digital Dashboard (System View) for display of measured parameters, Graphs for all parameters, Export to MS Excel.
• Automatic performance calculation and graphical report generation (in fully automatic models only)
• Automatic Multi point testing for performance curve plotting. The stable condition (of important Parameters) is sensed by the software and measurement is started automatically. When the measurement is complete, next (pre-defined) test is started and its stability is sensed and so on till all predefined tests are completed.
• Meets ASHRAE, ARI and ISO Standards.

• Capacity Range is from 200 to 60,000 BTU/Hr. (50 to 15,000 kCal/Hr). However, In a particular model, the higher capacity to be less than 4 times the lower capacity, e.g. a calorimeter with lower capacity as 500 BTU/Hr can operate up to a maximum capacity of 2000 BTU/Hr.
• Condensing Temperature : 32 oC to 66 oC
• Suction Temperature : (-)40 oC to 15 oC)
• Sub-cooled Liquid Temperature : 20 oC to 46 oC)
• Super Heated Liquid Temperature : 10 oC to 40 oC)

Performance Specifications

• Energy Balance : ± 2.0%
• Repeatability : ± 1.0%
• Mass Flow Accuracy : ± 0.1%
• Pressure Measurement Accuracy : ± 0.1%
• Temperature Control : ± 0.1 oC
• Electrical Measurements : Class 0.1