METER VARIOS Manuel utilisateur

VARIOS

TABLE OF CONTENTS

1. Introduction.............................................................................................. 1

1.1 VARIOS—Complete Set .............................................................................1

1.2 VARIOS—Extension Set.............................................................................1

1.3 VARIOS—Standalone Set ..........................................................................2

2. Operation ...................................................................................................3

2.1 Installation ................................................................................................3

2.2 Key Factors to Get Reliable Measurements ...............................................4

2.3 Connect VARIOS Configurations.................................................................4

2.3.1 VARIOS Thermal Dryout Configuration .............................................4

2.3.2 VARIOS Standalone Configuration ...................................................7

2.4 Prepare Soil Sample................................................................................... 8

2.4.1 Undisturbed Soil Sample .................................................................9

2.4.2 Disturbed Soil Sample ................................................................... 12

2.5 Saturate Soil Sample ............................................................................... 13

2.5.1 Undisturbed Soil Sample ............................................................... 13

2.5.2 Disturbed Soil Sample ................................................................... 16

2.6 Insert Sensor Needle Into Sample Material ............................................. 18

2.6.1 Soft Material Sample (TC-S70 or TC-S100 Sensor) ........................ 18

2.6.2 Solid Material Sample (TC-S100 Sensor) ....................................... 20

2.7 Set Measurement Configuration in LABROS Soilview Software ............... 20

2.7.1 Possible Device Combinations....................................................... 20

2.7.2 Connecting Devices to a PC Computer ........................................... 21

2.7.3 Preparing the Balance.................................................................... 21

2.7.4 Configure a Measurement.............................................................. 24

2.7.5 Running a Measurement ................................................................ 30

18471-00

7.2022

2.7.6 Additional Function of LABROS SoilView ....................................... 35

2.7.7 Postprocessing a Measurement..................................................... 36

3. System....................................................................................................... 39

3.1 Specifications.......................................................................................... 39

3.2 Components ............................................................................................ 41

3.2.1 Sensors.......................................................................................... 41

3.2.2 Soil Sample Ring............................................................................ 42

3.2.3 HYPROP Balance............................................................................ 42

3.2.4 Saturation Ring.............................................................................. 42

3.2.5 Silicone Retaining Rings ................................................................ 42

3.2.6 USB-A to USB-B Adapter and Cable ............................................... 42

3.2.7 Glycerin Verification Standard....................................................... 42

3.2.8 Upper Adapter................................................................................ 42

3.2.9 Lower Adapter................................................................................ 42

3.3 Theory...................................................................................................... 42

4. Service....................................................................................................... 46

4.1 Sensor Verification .................................................................................. 46

4.2 Cleaning................................................................................................... 49

4.3 Troubleshooting ....................................................................................... 50

4.4 Updating Firmware .................................................................................. 50

4.5 Customer Support.................................................................................... 51

4.6 Terms and Conditions .............................................................................. 51

References ....................................................................................................52

Index ................................................................................................................. 53

1. INTRODUCTION

Thank you for choosing the VARIOS Thermal Properties Analyzer from METER Group.

VARIOS is an automated measurement and evaluation lab system for determining thermal

conductivity as a function of water content of soil samples and other suitable materials. This

manual will help the user understand and use the VARIOS in its possible combinations to the

best of its capability.

Please verify that all components for the components ordered are included and appear in

good condition. Explanations for all components are located in Section3.2.

1.1 VARIOSCOMPLETE SET

The most common ordering option is for a VARIOS Complete Set. This option is most often

used for the dryout process described in Section2.3.1. The following items are included in

the shipment.

• VARIOS Thermal Properties Analyzer

• HYPROP Balance (VARIOS ready) with USB cable

• TC-S70 needle

Accessories included:

Soil sample ring with 2 drilled holes

2 Saturation trays

6 Silicone retaining rings

Glycerin verification standard

1.2 VARIOSEXTENSION SET

The components listed below are available individually to measure thermal conductivity at

specific water content points (will not be able to associate the thermal conductivity with

water content).

The VARIOS Extension Set does not include the HYPROP Balance (VARIOS ready). If this will

be used with an existing HYPROP Balance (not VARIOS ready), make sure a USB cable and

power adapter with cable is included (Figure3).

• VARIOS Thermal Properties Analyzer

• TC-S70 needle

INTRODUCTION

Accessories included

Soil sample ring with 2 drilled holes

2 Saturation trays

6 Silicone retaining rings

Glycerin verification standard

Items sold separately

VARIOS USB Adapter and cable (order separately if applicable)

VARIOS Power Adapter and cable (order separately if applicable)

Sensor Installation Tool

1.3 VARIOSSTANDALONE SET

The components listed below are available individually. This allows for use of a custom soil

sample container, or measure thermal conductivity at specific water content points. Contact

Customer Support for more information.

• VARIOS Thermal Properties Analyzer (1)

• USB-A to USB-B adapter and cable (1)

The following components can be ordered separately, if needed.

Sensor installation tool

Thermal conductivity soil sample ring

Glycerin verification standard

VARIOS Power supply adapter and cable

HYPROP Balance (VARIOS ready)

Sensor with TC-S70 needle

Sensor with TC-S100 needle

VARIOS

2. OPERATION

Please read all instructions before operating the VARIOS to ensure it performs to its

full potential.

PRECAUTION

METER sensors are built to the highest standards, but misuse, improper protection, or improper installation may

damage the sensor and possibly void the manufacturer’s warranty. Before integrating VARIOS into a system, make

sure to follow the recommended installation instructions and have the proper protections in place to safeguard

sensors from damage.

2.1 INSTALLATION

Follow the steps listed in Table1 to set up the VARIOS standalone as well as VARIOS dryout.

Table1 Installation

Tools Needed

Microsoft®Windows®computer (Windows 10 or newer)

LABROS SoilView software

LABROS SoilView-Analysis software

Preparation

WARNING

VARIOS is not intended for outdoor use.

CONSIDER SURROUNDINGS

When the VARIOS is used in combination with the HYPROP Balance, place the

Balance on a horizontal, vibration-free, solid surface where the temperature

remains fairly stable (away from the air conditioner and heater vents,

windows, etc.).

IMPORTANT: Temperature fluctuations or vibrations will strongly affect the accuracy of

the measurement results.

Remove the plate of the HYPROP Balance, and place the VARIOS on top of

the scale.

OPERATION

Table 1 Installation (continued)

Installation

Install LABROS SoilView Software and METER USB Driver

Download the LABROS SoilView Software Download.

Run the LABROS SoilView.exe ﬁle and follow the installation instructions.

NOTE: LABROS SoilView software can only be used with Microsoft Windows 10 or newer.

If there is a problem executing the LABROS SoilView.exe, please download and

install Microsoft.NET Framework 4.8.0 manually and have the current version

of the Microsoft Windows installer.

Click on the LABROS SoilView icon to open the program.

Connect VARIOS to HYPROP Balance (VARIOS ready)

Insert the VARIOS connector cable into the back of the HYPROP Balance

(Figure2).

Connect VARIOS to a HYPROP Balance That is not VARIOS Ready

Connect the VARIOS connector cable into the VARIOS power adapter, and plug

the power adapter into the HYPROP Balance (Figure3).

When the VARIOS is powered, a blinking white light will appear on the front of

the unit. See Table10 for more information regarding the lights and meanings.

2.2 KEY FACTORS TO GET RELIABLE MEASUREMENTS

Getting reliable results from VARIOS measurements is dependent upon the following factors.

• Air gaps in the sample may form if the needle moves around in the sample.

If an air gap forms, the accuracy of the measurement will be affected. The sensor needle

needs to fit tightly in the sample to reduce the chance of the needle moving around.

• Small stones or pebbles in the sample may prevent the sensor needle from being inserted

into the sample.

Try installing the sensor through the second drilling hole.

2.3 CONNECT VARIOS CONFIGURATIONS

The VARIOS can be configured two ways depending on the type of measurement data

required and the accessories available. This section describes the two configurations and

how to connect the accessories.

2.3.1 VARIOS THERMAL DRYOUT CONFIGURATION

The VARIOS Thermal dryout configuration uses both the VARIOS and a HYPROP Balance to

calculate the thermal conductivity as a function of water content of soil samples or various

suitable materials. Both the VARIOS Complete Set and the Extension Set can be used for the

Thermal dryout configuration.

VARIOS

The Extension Set will require an existing HYPROP Balance and VARIOS Power Adapter to

create a thermal dryout curve.

The VARIOS is placed on top of and connected to a HYPROP Balance. The soil sample ring

is placed directly on top of the VARIOS. The thermal conductivity and weight data are

automatically recorded from the HYPROP Balance and evaluated via the LABROS SoilView

and LABROS SoilView-Analysis software. As a result, the correlation between thermal

conductivity and water content of the dried-out soil sample is determined by the data

collected from the sample during the dryout process.

NOTE: The Complete Set uses a HYPROP Balance (VARIOS ready) and the Extension Set uses a legacy HYPROP

Balance. If HYPROP Balance is used, it can mean either version and depends on the equipment being set up.

2.3.1.1 CONNECT USING THE VARIOS COMPLETE SET

The VARIOS Complete Set or the Extension Set with an existing HYPROP Balance can be used

for the VARIOS Thermal dryout configuration.

Follow the steps below to connect the VARIOS Complete Set (Figure2).

1. Place the VARIOS ready HYPROP Balance on a stable surface.

2. Remove the Balance plate.

3. Place the VARIOS on top of the Balance.

4. Plug the VARIOS connection cable on the back of the VARIOS into the connector

(Figure2).

5. Plug the USB-B connector to the back of the VARIOS ready Balance and the USB-A

connector to the computer (Figure2).

6. Turn on the Balance.

7. Open the LABROS SoilView software.

NOTE: If the LABROS SoilView and SoilView-Analysis software package in not installed, download the latest

version from LABROS SoilView Sofware Download.

Make sure the VARIOS and HYPROP Balance (VARIOS ready) are connected.

Connected devices are shown in a device tree on the left side of the LABROS SoilView

software screen (Figure22). Be sure that the device stays connected during the

entire measurement.

NOTE: Make sure that the VARIOS connecting cable is not under any tension or touching anything that may

influence the accurate weight data.

OPERATION

VARIOS

Weight

calibration knob

HYPROP

Balance

HYPROP Balance

power supply cable

Bubble

level

VARIOS

indicator light

Figure1 VARIOS Complete Set for thermal dryout conﬁguration—front view

HYPROP

Balance

VARIOS VARIOS

connecting

cable

HYPROP Balance

USB cable

To computer

USB-A port

To power

supply

HYPROP Balance

power supply cable

VARIOS

ready label

Figure2 VARIOS Complete Set for thermal dryout conﬁguration—back view

2.3.1.2 CONNECT USING THE VARIOS EXTENSION SET

When using an existing HYPROP Balance (that is not VARIOS ready), the Extension Set should

be used. The Extension Set includes a METER power supply that plugs into the back of the

Balance to provide enough power to run the VARIOS unit. Contact Customer Support for

ordering information if a VARIOS power adapter is needed. Follow the steps below to connect

the VARIOS Extension Set (Figure3).

1. Place the HYPROP Balance on a stable surface.

2. Remove the Balance plate.

3. Place the VARIOS on top of the Balance.

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