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Temperature Control:
PTD 80

  • Three-quarter front view of the ViscoQC 300 rotational viscometer with the PTD 80 Peltier temperature device against a light blue background
  • Wide lab shot of two technicians working with ViscoQC 100 and ViscoQC 300 rotational viscometers with the PTD 80 Peltier temperature device, with sample bottles and jars on the bench under a fume hood
  • Angled close-up of the ViscoQC 300 touchscreen as a gloved hand taps the interface, showing a gear oil test and PTD 175 temperature at −40.0 °C
  • Three-quarter front view of the ViscoQC 300 rotational viscometer with the PTD 80 Peltier temperature device, with accessories laid out beside the base on a light blue background
  • Close-up angled view of the PTD 80 Peltier temperature device, showing the temperature chamber opening and vented housing mounted on the ViscoQC viscometer base
  • Three-quarter front view of the ViscoQC 300 rotational viscometer with the PTD 80 Peltier temperature device against a light blue background
  • Wide lab shot of two technicians working with ViscoQC 100 and ViscoQC 300 rotational viscometers with the PTD 80 Peltier temperature device, with sample bottles and jars on the bench under a fume hood
  • Angled close-up of the ViscoQC 300 touchscreen as a gloved hand taps the interface, showing a gear oil test and PTD 175 temperature at −40.0 °C
  • +2

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  • Fast, active heating and cooling from 15 °C to 80 °C
  • Solid-state Peltier: No liquids, no leaks, and maintenance-free
  • Full control via ViscoQC for streamlined operation
  • Compact design: Saves bench space and simplifies setup
  • T-Ready™ feature signals sample temperature equilibration
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PTD 80

PTD 80 extends temperature-controlled viscosity measurement with a clean, robust, and space-efficient design, ready to use right out of the box. Its solid-state Peltier technology enables rapid temperature changes between 15 °C and 80 °C without the need for cooling liquids. Fully operated via ViscoQC, PTD 80 supports all cylindrical systems such as DIN, small sample SC4, and UL, covering sample volumes from 2 mL to 20 mL. The T-Ready™ function signals temperature equilibration of the sample for confident and repeatable measurements.

Key features

No cooling liquids, no maintenance

Unlike conventional circulator baths, PTD 80 uses solid-state Peltier technology instead of cooling liquids. This eliminates leaks and regular maintenance associated with cooling liquids and hoses, while avoiding contamination risks at the measuring position. Active heating and cooling operate at a typical rate of 3 °C/min, delivering fast temperature changes with high efficiency. Once set, the system maintains a stability of ±0.1 °C, ensuring precise and reproducible viscosity measurements.

  • No bath and thermostat fluid required, no maintenance
  • Fast heating and cooling response saves time
  • High temperature stability for reproducible results
Wide lab shot of two technicians working with ViscoQC 100 and ViscoQC 300 rotational viscometers with the PTD 80 Peltier temperature device, with sample bottles and jars on the bench under a fume hood

Guaranteed temperature confidence

The unique T-Ready™ feature indicates when the sample has reached the set temperature, ensuring that every measurement is performed under identical thermal conditions. Full control via ViscoQC allows temperature settings to be embedded directly into the measuring method, streamlining operation and reducing manual interaction. Temperature calibration can be performed directly in ViscoQC by applying an offset, ensuring consistently accurate and reliable results.

  • T-Ready™ ensures tests at the exact set temperature
  • Temperature and test control via ViscoQC
  • Temperature calibration via offset in ViscoQC
Angled close-up of the ViscoQC 300 touchscreen as a gloved hand taps the interface, showing a gear oil test and PTD 175 temperature at −40.0 °C

Faster testing with less sample

PTD 80 supports routine QC at fixed temperatures as well as automated temperature scans across predefined points. Compared to conventional spindle-and-beaker setups, it works with cylindrical measuring systems requiring only 2 mL to 20 mL of sample. Faster thermal equilibration – minutes instead of hours – enables quicker measurements and higher throughput.

  • DIN: ISO 3219 compliance with well-defined shear rates
  • SC4-xx: Small-sample systems
  • UL26 and DG26: Low viscosities down to 1 mPa·s
Three-quarter front view of the ViscoQC 300 rotational viscometer with the PTD 80 Peltier temperature device, with accessories laid out beside the base on a light blue background

Minimal footprint, minimal environmental impact

PTD 80 integrates directly beneath ViscoQC, requiring practically no additional footprint and eliminating the need for external temperature controllers or baths. This compact design saves valuable bench space, simplifies system setup, and improves overall usability. In addition to saving physical space, PTD 80 also delivers a significantly lower environmental footprint through highly efficient operation.

  • Practically zero extra footprint
  • No external controller or bath required
  • 90 % lower power consumption vs. thermostats
  • Powered via ViscoQC, no extra power cables
Close-up angled view of the PTD 80 Peltier temperature device, showing the temperature chamber opening and vented housing mounted on the ViscoQC viscometer base

Specifications

Temperature range [°C]+15 to +80
Temperature stability [°C]±0.1
Supported viscometersViscoQC 100
ViscoQC 300
Supported measuring systemsConcentric cylinders (DIN), double-gap, ultra-low viscosity adapter, small sample adapter
Cooling liquidNo
Thermal managementActive heating and cooling
External power supplyNo

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Wide lab view showing a technician preparing a sample at a ViscoQC 300 rotational viscometer with the PTD 175 Peltier temperature device, while another technician works at a ViscoQC 100 viscometer in the background

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