Technical Specifications

The P3000 is a benchtop polarimeter from A.KRÜSS Optronic, built for standard measurements where ±0.01° accuracy is sufficient. Measurements complete in one to two seconds after temperature equalisation, and results appear either as optical angle of rotation or in the ICUMSA international sugar scale. The 3.5-inch capacitive touchscreen runs menu-guided automatic adjustment, and ICUMSA temperature compensation lets you measure at any temperature and read the value converted to 20 °C. The specifications below cover the standard unit; measurement tubes, quartz control plates, and the circulation thermostat are ordered separately.

Model/Part Number: P3000

Measurement Performance

• Scales: optical rotation (°) and international sugar scale (°Z)

• Measurement range: ±90° and ±259 °Z

• Measurement accuracy: ±0.01° and ±0.01 °Z

• Resolution: 0.01° and 0.01 °Z

• Measurement period: 1–2 seconds after temperature equalisation and at OD < 1

• Wavelength: 589 nm

• Maximum tube length: 220 mm

• Sample permeability: > 0.1 % (OD3), measurement up to optical density 3.0

• Adjustment: automatic, menu-driven

• Temperature compensation: ICUMSA pre-installed

Temperature Measurement

• Temperature measurement accuracy: ±0.1 °C

• Temperature measurement resolution: 0.1 °C

• Temperature control: retrofittable (requires circulation thermostat PT31/PT80, sample chamber bushing P8020, and temperature-controlled measurement tube)

Materials and Construction

• Parts in contact with the sample: borosilicate glass, PTFE, stainless steel (1.4305)

Operation and Interfaces

• Display: 3.5-inch capacitive touchscreen, 320 x 240 pixels, with keypad

• Interface: 1x RS-232

• Printer option: serial ASCII printer via RS-232

Methods and Users

• Method and user management: not available on this model

Physical and Electrical

• Dimensions (W x H x D): 645 x 200 x 360 mm

• Weight: 28 kg

• Operating voltage: 110–250 VAC

• Rated frequency: 50/60 Hz

• Power consumption (measurement mode): 30 W

• Power consumption (maximum): 40 W

Standards and Conformity

• Pharmacopoeias: USP, BP, JP, Ph. Eur. (with temperature control)

• Additional standards referenced: GLP, ASTM, ICUMSA, NIST

• Reference conditions: 20 °C, 1013 hPa, 50 % relative humidity

Standard Accessories Included:

• P3000 polarimeter base unit

• Power cable

• Operating manual

• Factory calibration certificate

Items Excluded:

• Polarimeter tubes (glass tubes PRG-100-E and PRG-200-E available separately)

• Glass cover plates and rubber rings

• Quartz control plates for calibration (PQP or PQE series, sold separately)

• Temperature sensor (stainless steel, optionally PTFE-coated)

• Circulation thermostat PT31/PT80, sample chamber bushing P8020, and temperature-controlled measurement tube for active temperature control

• Printer CBM910, interface cable, paper roll, and ink ribbon

Pre-installation Requirement:
Place the instrument on a rigid, level bench with clearance for the 220 mm tube length and access to the touchscreen. Connect to a grounded power supply within the 110–250 VAC range. Allow the unit to reach ambient temperature before first use if it has been stored in a colder environment. Perform the automatic adjustment with a certified quartz control plate before the first measurement. For measurements requiring active temperature control, install the circulation thermostat, sample chamber bushing, and temperature-controlled tube before the first run.

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Why This Polarimeter Fits Standard-Measurement Labs

Not every polarimetry application needs method management and multi-user access. Many need a reliable optical rotation reading, a sugar scale value, and a fast answer that conforms to the pharmacopoeias and ICUMSA. The P3000 polarimeter was built for exactly that profile: ±0.01° accuracy, one to two second measurement, and a touchscreen that walks you through adjustment without a manual.

The optical density limit of 3.0 matters more than it looks. Dark or turbid samples that would stop a lower-spec instrument still measure on the P3000, and the 220 mm maximum tube length covers the standard tube sizes used in sugar and pharmaceutical work. ICUMSA temperature compensation is pre-installed, so a sample measured warm still reports the value converted to 20 °C.

For buyers sourcing through OS4U, the configuration questions are tube length and volume, whether quartz control plates are needed for your calibration schedule, and whether active temperature control belongs in your method. The KRÜSS P3000 page lists the full accessory range.

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Key Benefits

Standard measurements, done in seconds

The P3000 laboratory polarimeter completes a measurement in one to two seconds after temperature equalisation, with ±0.01° accuracy on optical rotation and ±0.01 °Z on the sugar scale. For a QC lab running repeated checks, the time saved across a shift is real.

Two scales, one reading

Optical rotation in degrees and the ICUMSA international sugar scale in °Z are both available, with resolution to 0.01 in each. Sugar industry samples and pharmaceutical samples can share the same instrument without a scale conversion step.

Temperature compensation that travels

ICUMSA compensation is pre-installed, so a sample measured at any temperature reports the value converted to 20 °C. Temperature measurement resolves to 0.1 °C with ±0.1 °C accuracy.

Handles dark and turbid samples

Measurement works up to optical density 3.0, with sample permeability above 0.1 %. Samples that would stall a lower-spec polarimeter still produce a reading.

Adjustment without a manual

Menu-guided automatic adjustment runs from the 3.5-inch capacitive touchscreen. Operators do not need to memorise a sequence; the instrument leads.

Materials that suit pharmaceutical and food work

Sample contact parts are borosilicate glass, PTFE, and stainless steel (1.4305). These materials suit the cleaning and compatibility requirements of pharmacopoeia and food applications.

Conformity across the standards you cite

The P3000 references USP, BP, JP, and Ph. Eur. (with temperature control), along with GLP, ASTM, ICUMSA, and NIST. Method documentation does not need a separate justification for the instrument.

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Solving the Problems That Slow Polarimetry Down

Struggling with measurements that take longer than the sample prep? One to two seconds per measurement after temperature equalisation. The instrument is not the bottleneck.

Getting readings on dark or turbid samples that fail on other instruments? The P3000 measures up to optical density 3.0, with sample permeability above 0.1 %.

Losing accuracy when the sample is not at 20 °C? ICUMSA temperature compensation reports the value converted to 20 °C, and temperature measurement resolves to 0.1 °C.

Needing both optical rotation and sugar scale results? Both scales are available on the same instrument at 0.01 resolution, so sugar and pharmaceutical samples share one device.

Worried about adjustment consistency between operators? Automatic menu-driven adjustment walks the operator through the sequence. Combined with certified quartz control plates, the adjustment is documented and repeatable.

Needing to document results? Results can be printed on a serial ASCII printer via RS-232, and the factory calibration certificate supports the instrument's traceability.

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Warranty & Support

We provide a 1-year manufacturer’s warranty covering parts and labor. Technical support, installation assistance, and operational training are also available. Replacement parts and consumables are available throughout the product’s service life.

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