OptiMax Starter Kit and HFCal

Detect Non-Scalable Conditions.The OptiMax 1001 HFCal - a reaction calorimeter for fast and efficient safety studies for process characterization and scale-up.

Uncover Scale-up and Safety Issues

OptiMax™ HFCal reproducibly delivers information for characterizing and scaling up processes to ensure they are safe at scale.

Understand Your Process Parameters

Heat data obtained under both isothermal and non-isothermal conditions enables the characterization of process parameters under process-like conditions.

Simple and Accurate Calorimetry

The Plug & Play calorimetry module enables determination of heat information accurately and precisely.

Material No.: 511628301

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Specifications - OptiMax Starter Kit and HFCal
35 kg
Operating Volume
60 mL – 1,000 mL
Dimensions (HxWxD)
78 cm x 39 cm x 42 cm
Temperature Range
-40 °C – 180 °C
Back / Front light
Precision Heat Transfer
Typically +/- 3%
Accuracy and Precision Specific Heat
Typically +/-10%
Accuracy Heat Flow
Isothermal conditions: ± 3 % to 5 %
Based on comparison of qr_hf with qc resp. ∫qr_hf with ∫ qc
Non-isothermal conditions: ± 5 % to 10%
Calorimetry Type
Heat Flow
OptiMax Starter Kit (51162830) and Upgrade Kit OptiMax HFCal (30050150)
Temperature Modes
Jacket control, reaction mixture control, distillation control, crystallization control
Heating / Cooling
Solid State Thermostat
Power Requirements
100 – 240 VAC, 50/60Hz

Faster Process Development

Characterize reaction parameters and collect heat information at the same time. The combination of heat information with real-time analytical data provides researchers with the relevant information for safe scale-up processes.

Precise Heating and Cooling

Powerful heating and rapid cooling combined with the unique control algorithm ensure that the temperature is maintained accurately and precisely between -40°C and 180°C, even if sudden exothermic reactions occur.

Accurate Data Analysis

With a single click, the iControl software automatically calculates and reports heat transfer data, the specific heat of the reaction mass, heat flow and reaction enthalpies.



EasyMax (102, 102 LT, 402) HFCal and OptiMax HFCal Datasheet
Datasheets for EasyMax and OptiMax HFCal models include technical specifications and configuration options.

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Extended Product Information

OptiMax Operating Instructions
Guide on how to operate your OptiMax chemical synthesis workstation.
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OptiMax pre-installation guide includes a checklist for site requirements for standard equipment, technical data, and scope of delivery.
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METTLER TOLEDO provides a range of value-added service options to help ensure instrument uptime, provide quality results, and ensure regulatory compli...



Cooling Performance0°C   35 W 
20°C 65 W
40°C   95 W
Temperature Range-40°C to 180°C (jacket temperature)
Control Modesisothermal and isoperibolic, constant or ramp, reflux, distillation & crystallization
Stirring30 rpm to 1200 rpm
DimensionsThermostat: 388 mm x 414 mm x 539 mm
Power Supply100 V to 240 V AC, 50 Hz to 60 Hz, 1300 VA
OperationiControl software for calorimetric applications
Graphical touchscreen and/or iControl Software
TypeSingle piece or two piece (with bottom drain valve)
Volume1000 mL
Pressure50 mbar to 1 bar
MaterialDuran® glass
StirrerPitch-blade (glass, Alloy 22)
Anchor (glass, Alloy 22)
Half-moon (PTFE for single piece reactor)
TypeHeat Flow
Calibration HeaterMax. 20 W
Precision Heat TransferTypically ± 3%
Accuracy and Precision Specific HeatTypically ± 10%
Accuracy Heat FlowTypically ± 3% to 5%, under isothermal conditions
Typically ± 5% to 10%, under non-isothermal conditions
Sensitivity≤0.1 W measured as standard deviation of qr under steady state conditions.
Peak-to-peak noise is ≤ approximately 0.4 W.
HFCal Module 
Power and Data InterfaceDirect connection to CAN interface of standard OptiMax,
no additional power supply or PC connection required
Data LoggingVia iControl Software
Dimensions120 mm x 40 mm x 170 mm
SoftwareiControl 5.2 or higher required, HFCal license



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OptiMax Starter Kit and HFCal