Bring anchor mixing, heating, sample-temperature sensing and process visibility to one compact benchtop. The IKA LR 1000 control System is a 1 L laboratory reactor for developing suitable viscous formulations, including creams and lotions in cosmetic and pharmaceutical research.

US catalog 0025001992 supplies the Control base, LR 1000.3 reactor vessel, anchor stirrer with PEEK scrapers and a PT 100.30 temperature sensor. Its TFT interface adds onboard weighing, relative torque-trend display and a connection for a separately selected pH electrode.

Start with a defined factory system, then add only the cooling, vacuum or high-shear equipment your method needs. Cooling, vacuum and high-shear equipment are separate selections, not items included with this order.

Develop suitable creams, lotions and viscous blends

Choose this 1 L platform when your R&D work calls for anchor mixing and controlled heating of a suitable viscous formulation. Its 300–1,000 mL useful range without a disperser makes the intended batch scale clear before you choose the system.

Follow the batch, not just the speed dial

Use the TFT view to follow medium temperature and relative torque changes at constant set speed. Pause heating and stirring to use onboard weighing. Add a suitable pH electrode separately if pH measurement belongs in your method.

Start with the core hardware already selected

The Control base, LR 1000.3 vessel, PEEK-scraper anchor and PT 100.30 sensor are specified together under US order code 0025001992. You can distinguish the core system from optional cooling, vacuum or dispersing equipment instead of budgeting for an undefined collection of parts.

Choose Control for functions you will actually use

Control is the choice when its TFT interface, weighing, relative torque trend and pH connection support your workflow. If those functions are unnecessary, compare Basic instead. Both versions share the stated 1 L maximum volume and 120°C medium limit; Control does not buy a larger vessel.

The vessel, stirrer and temperature sensor are part of the system

• LR 1000 control base, US 115 V, 50/60 Hz.
• LR 1000.3 laboratory reactor vessel.
• LR 1000.10 anchor stirrer with PEEK scrapers, listed in the current US system scope.
• PT 100.30 temperature sensor and the supplied sensor receptacle, listed as LR 1000.62 in the current US order scope.
• Silentstream, support rod and two hose connectors.
• USB A to Micro-B cable, 2 m. The operating manual also identifies a mains cable and tool kit.

Not listed as supplied: a pH electrode, T 25 disperser and reactor-specific dispersing tool, external chiller or other cooling supply, vacuum pump, reflux condenser or labworldsoft software license. Select those separately when the application needs them.

The manual covers both Basic and Control and includes shared installation illustrations. Use the Control column and the actual supplied components; a shared drawing is not proof that every illustrated accessory is in this package.

Anchor mixing for suitable viscous media

The supplied anchor and PEEK scrapers support mixing within the 10–150 rpm range. The published maximum viscosity is 100,000 mPa·s. This is a selection limit, not a promise of identical performance at every fill, speed, temperature or formulation.

Work at a useful laboratory scale

The manufacturer specifies 300–1,000 mL without a dispersing tool and 500–1,000 mL when an appropriate dispersing tool is fitted. Do not treat the 1 L maximum as a universal recommended charge or assume it is a micro-volume reactor.

Choose chemistry against the contact materials

The Control configuration includes stainless steel, borosilicate glass 3.3, PTFE, PEEK and FFKM in the documented wetted assembly. Check chemical, seal and temperature compatibility for the actual formulation; the material list is not blanket solvent approval.

TFT operation with useful formulation measurements

Control brings the main operating values together on a color TFT display, with rotary/push controls and an intuitive menu. Follow sample temperature and stirring settings, use the integrated weighing function and observe relative torque changes during your method.

Weighing: the specified range is 3–2,000 g with 1 g resolution. Heating and stirring must be deactivated for weighing, as the manual requires. It can simplify formulation additions in the reactor, but it does not replace an analytical balance when your method requires finer or certified mass measurement.

Torque trend: this is a relative process indicator. Use a constant set speed for torque-trend measurement; the manual says it cannot be combined with intermittent mode. A change may help you see how a formulation develops under consistent conditions, but the reactor does not report a calibrated absolute viscosity in mPa·s.

pH: the integrated BNC connection and TFT display support pH measurement with a suitable separately selected electrode. A probe is not in the listed standard delivery. Calibrate the selected electrode before measurement; the manual requires an inserted temperature sensor for calibration. Chemical compatibility and the applicable probe instructions still matter.

USB and RS 232 support a separately configured PC workflow. IKA labworldsoft is optional software, not a license included with this system. No automatic electronic-record, audit-trail or regulatory-compliance claim is made.

120°C working temperature is not the same as the heater rating

The integrated heating block supplies heat through the vessel base. The external PT 100 temperature sensor measures the medium so heating can be controlled around the process temperature rather than an assumed hotplate setting.

The maximum working temperature of the medium is 120°C. A separate 180°C heating-block specification appears in the manufacturer’s data; it is not permission to operate the formulation at 180°C.

The manual requires the external temperature sensor to remain immersed in the medium, with at least 20 mm insertion depth. Set the adjustable safety circuit appropriately for the medium and method, and account for residual heat before handling or removing the vessel.

The equipment shuts off stirring and heating when the vessel or lid is removed during operation. These protections do not replace operator supervision, a suitable risk assessment or the full safety instructions.

Cooling connections are built in. The cooling supply is separate.

Flow-through cooling uses integrated cooling coils in the base. Connect an appropriate external cooling arrangement when your method needs controlled heat removal or a cooling step. The system is not supplied with a recirculating chiller.

The manufacturer lists a 3°C minimum cooling-medium temperature and 1 bar maximum permissible cooling-medium pressure. The operating instructions also require an unpressurized cooling arrangement. Do not connect an unrestricted pressurized supply or treat the 1 bar limit as a recommendation to pressurize the circuit.

Secure the hoses, provide the specified outlet/drain arrangement and follow the manual’s connection instructions. The optional MV1 valve is installed only on the cooling inlet and must be selected and connected correctly.

For planning, separate the desired sample temperature from cooling-medium temperature, flow and available cooling capacity. A compatible connection alone does not guarantee the required cooling time for every batch.

Build the method around the batch and its limits

• Define the medium, target batch, contact-material compatibility and required mixing or dispersing route.
• Inspect the glass vessel, lid, seals, anchor and temperature sensor. Install and lock the equipment as the manual directs.
• Use an appropriate charge and keep the PT 100 sensor immersed. Start stirring at a suitable low setting and adjust within the method’s limits.
• Control heat against the measured medium temperature. Follow relative torque and use weighing or a separately configured pH measurement where relevant.
• Use the selected cooling arrangement when required. Stop, allow safe handling temperatures, isolate power for cleaning and record the method before changing the next batch.

A visible torque change can be a useful process observation, but it is not proof of a particular viscosity, emulsion quality or validated endpoint. Establish and document your own acceptance criteria.

Let the equipment cool safely

The heating block, vessel and lid can remain hot after the process stops. Stop stirring and isolate the electrical supply before accessory changes or cleaning, following the specified safe-removal procedure.

Inspect the wetted assembly

Check the glass for damage and inspect the scraper, O-rings, shaft seal and connections. Wear and residue can affect both operation and process observations. Select cleaning agents that suit the actual materials and contamination risks.

Protect the electrical base

Do not immerse the drive or wash it as if it were an empty glass vessel. The manual identifies product-contacting components as suitable for laboratory dishwashers, while electrical equipment and handles must not be immersed. Follow the separate component and cleaning-agent instructions; this is not an autoclave or sterilization claim.