TA Instruments DHR Series Getting Started Manual
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TA Instruments DHR Series Getting Started Manual

TA Instruments DHR Series Getting Started Manual

Peltier plate
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DHR Series and AR Series
Peltier Plate
Getting Started Guide
Revision H
Issued August 2014

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Summary of Contents for TA Instruments DHR Series

  • Page 1 DHR Series and AR Series Peltier Plate Getting Started Guide Revision H Issued August 2014...
  • Page 2 TA Instruments may have patents, patent applications, trademarks, copyrights, or other intellectual prop- erty covering subject matter in this document. Except as expressly provided in written license agreement from TA Instruments, the furnishing of this document does not give you any license to these patents, trade- marks, copyrights, or other intellectual property.

  • Page 3: Introduction

    Introduction Important: TA Instruments Manual Supplement Please click the TA Manual Supplement link to access the following important information supplemental to this Getting Started Guide: • TA Instruments Trademarks • TA Instruments Patents • Other Trademarks • TA Instruments End-User License Agreement •...

  • Page 4: Notes, Cautions, And Warnings

    Notes, Cautions, and Warnings This manual uses NOTES, CAUTIONS, and WARNINGS to emphasize important and critical instructions. In the body of the manual these may be found in the shaded box on the outside of the page. NOTE: A NOTE highlights important information about equipment or procedures. CAUTION: A CAUTION emphasizes a procedure that may damage equipment or cause loss of data if not followed correctly.

  • Page 5: Electromagnetic Compatibility Standards

    Electromagnetic Compatibility Standards For Australia and New Zealand AS/NZS CISPR11:2004 Limits and methods of measurement of electronic disturbance characteristics of industrial, scientific and medical (ISM) radio frequency equipment. For Canada ICES-001 Issue 4 June 2006 Interference-Causing Equipment Standard: Industrial, Scientific, and Medical Radio Frequency Generators.

  • Page 6: Safety

    Safety Do not attempt to service this instrument, as it contains no user-serviceable components. Required Equipment While operating this instrument, you must wear eye protection that either meets or exceeds ANSI Z87.1 standards. Additionally, wear protective clothing that has been approved for protection against the materials under test and the test temperatures.
  • Page 7 CAUTION: The Peltier Plate may be damaged by operating the instrument without a flow of water through the Peltier Plate. There is a Peltier overheat protection device that will activate if the device becomes too hot. MISE EN GARDE: La plaque Peltier peut être endommagée si l'instrument est utilisé sans écoule- ment d'eau dans la plaque Peltier.

  • Page 8: Table Of Contents

    Important: TA Instruments Manual Supplement ........

  • Page 9: Chapter 1: Introducing The Peltier Plate

    Chapter 1: Introducing the Peltier Plate Overview The standard Peltier Plate (schematic shown in the figure below) is the most widely used temperature con- trol system for the rheometers. It uses the Peltier thermoelectric effect to control the temperature accu- rately, with rapid heating and cooling.
  • Page 10 Typical temperature ranges for different cooling fluid configurations are given in the “System Specifications” section. The flow rate of the fluid through the bath does not need to be high. A flow rate of at 0.5 liters per minute is usually adequate, although this should be increased to 1 liter per minute when working at very low tem- peratures.

  • Page 11: Accessories For The Standard Peltier Plate

    Accessories for the Standard Peltier Plate Solvent Trap Many samples are prone to drying due to solvent evaporation during testing. The Solvent Trap cover and Solvent Trap geometry work in concert to create a thermally stable vapor barrier, virtually eliminating any solvent loss during the experiment.

  • Page 12: Variants Of Standard Peltier Plate

    Variants of Standard Peltier Plate There are three variants of the standard Peltier Plate: Stepped, Stepped Disposable, and Advanced. Stepped Peltier Plate The Stepped Peltier Plate has a raised center section with a thread for attaching screw-in plates. This is most commonly used with 25 and 8 mm screw-in plates and Upper Heated Plate (UHP) for asphalt binder tests.

  • Page 13: Advanced Peltier Plate

    Advanced Peltier Plate The Advanced Peltier Plate can be used as a standalone base plate for use with upper geometries up to 50 mm diameter, or it can be used with interchangeable quick-change plates via the use of the bayonet mount- ing ring.

  • Page 14: Un-Installing A Quick-Change Plate

    Use needle-nose pliers to lock the mounting ring into place. Refer to the image below. Figure 6 Install the quick change plate. Un-installing a Quick-Change Plate To remove a quick-change plate use the needle-nose pliers to unlock the mounting ring. Refer to the image below: Figure 7 Un-install the quick change plate.

  • Page 15: Dual Stage Peltier Plate (Dspp)

    Dual Stage Peltier Plate (DSPP) The Dual Stage Peltier Plate (DSPP) is a system optimized for low temperature measurements using the standard four element array as a heat sink for a single Peltier element and top plate. This still has the same maximum temperature as the standard plate, but because the lower Peltier elements are the heat sink for the top element rather than a circulating fluid, low temperatures can be reached quickly, and without the use of expensive refrigerated fluid circulators.

  • Page 16: System Specifications

    System Specifications The table found below contains the technical specifications for the Peltier Plate. Table 1: Peltier Plate System Specifications Temperature range Tap water supply -20°C to 200°C Air cooled circulator (P/N 403209.901) 0°C to 200°C Thermo Cube (P/N 403258.901) at -5°C -20°C to 200°C (80% water / 20% alcohol mixture) Appropriate circulating fluid at -20°C...
  • Page 17 In the example below, the maximum sustainable cooling rate from 25 to -20°C is -3.87°C/min. So, even though the Peltier plate can step from 25 to -20°C in just over 3 min, the fastest controlled ramp would take almost 12 min (45/3.87). Figure 9 Maximum sustainable cooling rate example.

  • Page 18: Chapter 2: Installing The Peltier Plate

    Press the Release button on the control panel, as seen in the figure below. A continuous green light indicates that the attachment can be fitted. NOTE: The release state will only stay active for 10 seconds. Figure 10 Release button (DHR Series shown). DHR/AR Series Peltier Plate Getting Started Guide Page 18...
  • Page 19 Connect the power cable and, if necessary, the fluid hoses. Power cable Fluid hoses Figure 12 Connecting power cable and fluid hoses (DHR Series shown). When the green status light turns off, the rheometer is ready for use. DHR/AR Series Peltier Plate Getting Started Guide...

  • Page 20: Removing The Lower Stage

    Removing the Lower Stage Press the Release button on the control panel. A flashing green light indicates that the attachment can be unplugged. Refer to step 1 in the previous section for Release button location. Disconnect the power cable and fluid hoses. Refer to Figure 12 in the previous section, if needed.

  • Page 21: Index

    Index cautions 4 Dual Stage Peltier Plate 15 flow rate 10 instrument symbols 6 license agreement 3 notes 4 patents 3 Peltier Plate description 9 Dual Stage Peltier Plate 15 Solvent Trap 11 Regulatory Compliance 4 safety 6 instrument symbols 6 Safety Standards 4 Smart Swap DHR/AR Series Peltier Plate Getting Started Guide...
  • Page 22 18 uninstalling 20 TA Instruments offices 3 trademarks 3 VTI-SA+ technical specifications 16 Warnings 6 warnings 4 DHR/AR Series Peltier Plate Getting Started Guide Page 22...

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Ar series

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