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METER ROS 1 Manual

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ROS 1

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Summary of Contents for METER ROS 1

  • Page 1 ROS 1...

  • Page 2: Table Of Contents

    18459-00 11.2021 TABLE OF CONTENTS 1. Introduction ....................1 2. Operation ....................2 2.1 Installation ....................2 2.2 Sample Preparation ................... 3 2.3 Taking a Reading ..................4 3. System ......................6 3.1 Specifications .................... 6 3.2 Components ....................8 3.3 Theory ......................

  • Page 4: Introduction

    ROS 1 1. INTRODUCTION Thank you for choosing the ROS 1 Moisture Analyzer from METER Group. The ROS 1 utilizes a unique design combined with a sound scientific understanding of moisture loss to create the ideal loss-on-drying moisture analyzer. This manual includes instructions for setting up, verifying the scale calibration, preparing samples, taking readings, and maintaining the ROS 1.

  • Page 5: Operation

    Copy the Bridge app from the included USB drive to the computer. Open the Bridge app. Connect the USB cable to a USB port on the ROS 1 and a USB port on the computer. Connecting Select the METER USB COM port from the dropdown menu.

  • Page 6: Sample Preparation

    Completely cover the bottom of the cup, if possible. The ROS 1 is also able to accurately measure a sample that does not (or cannot) cover the bottom of the cup. For example, raisins only need to be placed in the cup and do not need to be flattened to cover the bottom.

  • Page 7: Taking A Reading

    NOTE: When drying liquid samples, filter paper may be added to the empty sample cup before taring. The ROS 1 can take between one and nine sample test at one time. Any position without a sample cup will be disregarded, meaning all positions on the carousel do not have to contain a sample cup.
  • Page 8 Bridge app. Follow the prompts in the Bridge app to tare a new sample cup and replace the sample. 13. Once the last sample has been weighed, all of the LEDs on the ROS 1 will pulse and the internal air flow and heating process will begin automatically.

  • Page 9: System

    SySTEM 3. SySTEM This section describes the specifications, components, and theory of the ROS 1. 3.1 SPECIFICATIONS MEASUREMENT SPECIFICATIONS Moisture Range Range 0.1−100% Accuracy Repeatability 0.05% (4-g samples) Repeatability 0.01% (10-g samples) Method Loss-on-drying using any standard method Scale Readability 0.0001 g...
  • Page 10 Width 30.5 cm (12.0 in) Height 20.3 cm (8.0 in) Case Material Powder-coated steel Sample Cup Capacity 33.173 mL (1.124 fl oz) ROS 1 Weight 12.5 kg (27.6 lb) Operating Temperature Range Minimum 4 °C Typical Maximum 50 °C NOTE: Sensors may be used at higher temperatures under certain conditions;...

  • Page 11: Components

    The power switch and communications ports are located on the rear of the ROS 1. There are LEDs on the front of the ROS 1 that correspond to each of the nine sample positions on the carousel (Figure 1).
  • Page 12 ROS 1 Carousel (sample chamber) Figure 3 Sample chamber Scale pan Figure 4 Scale and scale pan...
  • Page 13 SySTEM Power switch & cable plug USB ports COM port Figure 5 Power Switch and COM ports Figure 6 Front panel...

  • Page 14: Theory

    The Bridge app user matches any reference moisture method without the need to use extreme temperatures to predict the moisture content. ROS 1 has a growing list of standard configurations based on AOAC, AACC, and Swiss Food Manual standards. The ROS 1 calculates moisture on a dry basis.

  • Page 15: Analysis Of The Drying Process

    SySTEM 3.3.2 ANALySIS OF THE DRyING PROCESS Drying occurs when a sample loses water. When water loss stops, under a specified set of conditions, the sample is said to be dry. Heating is often assumed to be necessary for drying, but high temperatures are only peripherally related to drying.

  • Page 16: Temperature Dependence Of Water Activity

    ROS 1 0.025 0.02 0.015 0.01 0.005 Oven Vapor Pressure (kPA) Figure 7 Water activity of a dry sample in an oven This analysis should make several things clear: Dry does not mean there is no more water in the sample.

  • Page 17: Service

    Click on the Calibrate Scale button. Select Next to begin tarring the scale. NOTE: Do not touch the table or ROS 1 during calibration to prevent disturbing the calibration routine. When prompted in Bridge, open the sample chamber lid. Add an empty sample cup to sample position 1 on the carousel.
  • Page 18 (nonburnt) debris. • To remove burnt or dried substances, try gently scrubbing using a very fine (scratch free) cleanser (METER has successfully tested Bon Ami cleaner). • Rinse the surfaces using a moist towel, sponge, or KIMWIPE.
  • Page 19 SERVICE METER recommends checking the ROS 1 daily to see if a more thorough cleaning is needed. For a more thorough cleaning, use the following steps to wash, rinse, and dry each area. Turn the ROS 1 power off. Open the sample chamber lid to expose the sample chamber.
  • Page 20 ROS 1 Remove carousel Figure 10 Remove Carousel Clean, rinse, and dry the heating plate. To access the scale well, remove the scale pan by removing the screw from the center (Figure 11).

  • Page 21: Repair

    11. Screw in the two thumb screws to secure the carousel. 4.3 REPAIR METER repairs manufacturer defects and instruments within the 1-year warranty at no charge. Repairs outside of the warranty window are charged based on cost of parts, labor, and shipping.

  • Page 22: Troubleshooting

    ROS 1 All ROS 1 units returning to METER for servicing must be accompanied with a Return Merchandise Authorization (RMA) number. Prior to shipping the instrument, contact Customer Support to obtain an RMA number. Ship the ROS 1 in its original cardboard box.

  • Page 23: Customer Support

    NOTE: For products purchased through a distributor, please contact the distributor directly for assistance. 4.6 TERMS AND CONDITIONS By using METER instruments and documentation, you agree to abide by the METER Group, Inc. USA Terms and Conditions. Please refer to metergroup.com/terms-conditions...

  • Page 24: Index

    INDEX INDEX accuracy 2 reference moisture method 11 air flow control 8 repair 18 RMA number 19 Bridge app 1, 2, 14 sample cups 1, 4, 19 sample preparation 3 calibration 3, 14 scale pan 9 Certificate of Calibration 1 specifications 6 cleaning 14 accuracy 6...
  • Page 25 18460-00 11.2021 METER Group, Inc. USA 2365 NE Hopkins Court Pullman, WA 99163 T: +1.509.332.2756 F: +1.509.332.5158 E: info@metergroup.com W: metergroup.com METER Group AG Mettlacher Straße 8, 81379 München T: +49 89 1266520 F: +49 89 12665220 E: info.europe@metergroup.com W: metergroup.de ©...

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