PCE Instruments PCE-RVI 3 Manual de usuario

Operating Instructions

Rotation Viscometer PCE-RVI 3

Version 1.0

27.08.2014

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PCE Instruments UK Ltd

Units 12/13 Southpoint Business

Park

Ensign Way, Southampton

Hampshire

United Kingdom, SO31 4RF

Phone +44 ( 0 ) 2380 98703 0

Fax +44 ( 0 ) 2380 98703 9

e-mail: info@industrial-needs.com

OPERATING INSTRUCTIONS

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Table of contents

1General Information...................................................................................................3

1.1 Introduction......................................................................................................................................... 3

1.2 Area of Application.............................................................................................................................. 3

1.3 Hazard Symbols.................................................................................................................................. 3

1.4 Safety Precautions.............................................................................................................................. 4

1.5 Certification, Warranty and Documentation........................................................................................... 5

2Technical Data ..........................................................................................................6

3Putting Viscometer into Operation.............................................................................7

3.1 Unpacking the Viscometer................................................................................................................... 7

3.2 Delivery Content.................................................................................................................................. 7

3.3 Battery Replacement........................................................................................................................... 8

3.4 Inserting the Spindle............................................................................................................................ 8

3.5 Installing the Spindle Guard................................................................................................................. 9

3.6 Stand Construction (optional)..............................................................................................................10

4Operation ................................................................................................................12

4.1 Switch on and Configuration ...............................................................................................................12

4.2 Measuring..........................................................................................................................................14

5Calibration of the Equipment...................................................................................16

5.1 Viscometer Function Check................................................................................................................16

5.2 Viscometers Automatic “Zeroing” ........................................................................................................16

6Optional accessories...............................................................................................17

7About the Viscosity..................................................................................................18

7.1 Description.........................................................................................................................................18

7.2 Further information about Fluids..........................................................................................................18

8Viscosity Table........................................................................................................20

9Problem Solution.....................................................................................................20

OPERATING INSTRUCTIONS

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1 General Information

1.1 Introduction

The PCE-RVI 3 is a portable viscometer used to determine the viscosity of liquids. The ergonomical

design of the viscometer (can also be used in combination with a sturdy optionally available stand), allows

it to be used as either a mobile device or as a part of a permanent laboratory installation.

The PCE-RVI 3 is battery powered and operates at a constant speed (20, 30, 50 or 60 rpm).

The low energy consumption of the device enables it to be used non-stop for more than 24 hours without

the need to replace the batteries.

When ordering the device, the desired speed (rpm) must be stipulated, this is dependent upon the

measuring range in which the viscometer is to be used.

The viscosity values will be displayed in Milli-Pascal-Seconds (mPas).

In order to cover the whole range of potential readings, the viscometer is supplied with a spindle set (R2-

R7, or optionally R1).

An outstanding feature of the PCE-RVI 3 is its user friendliness, enabling it to be used during the

production process, in laboratories or research facilities, providing fast and reliable viscosity values.

1.2 Area of Application

The Viscometer PCE-RVI 3 has been developed in order to determine the viscosity of a variety of liquids.

The device should only be used by appropriately trained and qualified personnel. When using the

Viscometer the normal laboratory precaution and safety measures should be observed at all times. The

Viscometer must not be used for any purposes other than those stipulated in the operating instructions. If

the advice above is not adhered to, any statutory guarantee is declared null and void.

1.3 Hazard Symbols

The commissioning and operation of the PCE-RVI 3 is quite straight forward providing that the

instructions within the operating instructions are adhered to at all times. It can be hazardous to use the

device for any purposes other than those for which the equipment was intended. For this reason, certain

points within this operating instruction are highlighted as potentially hazardous, and must be carefully

observed to prevent equipment damage or personal injury.

Hazard

This symbol in conjunction with the appropriate advice, warns the user of any potential danger or hazard.

If due care is not observed, this could result in damage to the equipment or personal injury.

Caution

This symbol combined with the appropriate advice warns of the danger of potential equipment damage,

should the advice not be heeded.

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Information

This symbol warns of specific details relating to the viscometer which must be heeded all times. Users

must pay close attention to the advice in this operating instruction, and be aware of and take into account

all safety and hygiene standards concerning the local working conditions.

Before operating the equipment, each user of the device should have read and fully understood the

operating instructions.

1.4 Safety Precautions

Operator safety cannot be guaranteed should the following advice not be heeded.

Battery Operation

The Viscometer is battery powered. The casing of the viscometer must never be removed when the

device is in operation. The exchange or replacement of parts or components or the changing of settings

of the viscometer must only be carried out by trained and qualified personnel. Only original

manufacturer’s parts must be used. Before changing the batteries, the device must be turned off and the

spindle removed.

Explosive Environment Hazard

The device must be used in areas where there is a danger of explosion or within the proximity of

inflammable gases, or where there could be a potential build up of explosive gases.

Malfunction Risk

In order to avoid any potential damage, the equipment should not be used within strong electro-magnetic

fields. For instance transmitters such as cell phones should not be used within close proximity of the

viscometer. Should an error occur despite these precautions, then the device should be powered off and

the supplier should be contacted.

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1.5 Certification, Warranty and Documentation

Certification

The Viscometer PCE-RVI 3 has been thoroughly tested and inspected prior to dispatch. The output

readings have been checked and fully correspond with the appropriate data input. The device conforms to

statutory international safety standards.

Warranty

The Viscometer PCE-RVI 3 has a two year warranty against defects in materials or workmanship. During

this period, any defective parts will be repaired or replaced free of charge. Warranty claims other than

those previously mentioned are expressly excluded. Improper modifications, or repairs carried out by

unauthorized third parties will result in the warranty being declared invalid. Inappropriate use of the device

or neglecting to observe the safety precautions in the operating instructions will also lead to the

invalidation of the warranty. At the end of the warranty period, it is advisable to arrange for a service

contract to be taken out, so as to guarantee continued trouble free use of the device. For further

information, please contact your supplier.

Documentation

An operating instruction is applied with each device. Extra copies of the operating instruction may be

obtained from your supplier, please quote the serial number of the device and the manual which is

required. We endeavor to review and edit this manual and assume no liability for printing errors or

omissions.

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2 Technical Data

Portable Viscometer PCE-RVI 3

Power requirement

Alkaline batteries: 4 x AA/LR6

Rechargeable batteries: 4 x AA/R6

Battery capacity

Alkaline batteries: 1900 mAh

Rechargeable batteries: 2500 mAh

Battery life

24 –30 Std. continuous operation

Read out value

Fixed speed

Spindle selection (R2-R7). Optional: R1

Dynamic viscosity (mPas)

Fraction of the maximum measuring value

Maximum measuring range

Battery level

Compatibility

100 % compatible with the Brookfield method

Spindles

Standard spindle Set (R2 –R7) optional: R1

Speed

20 rpm

60 rpm

(only one speed preset)

Viscosity ranges

(with standard spindles)

Type VP20: 200 –200000 mPas

Type VP60: 66 –66600 mPas

Accuracy

± 2% of the read out value

Repeatability

± 1%

Mass

10,5 x 16 x 25,5 cm

Weight

1150g

Operating conditions

Between +10°C and +40°C (at max. relative humidity of

80% without condensation)

Applicable up to a height of 2000m over NN

Only suitable for using inside buildings

Degree of pollution

Protection class

Ip 20

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3 Putting Viscometer into Operation

3.1 Unpacking the Viscometer

After receiving the Viscometer, proceed as follows:

Check the Viscometer packaging for possible transport damages

If the packaging is damaged, contact the responsible transport before opening the packaging.

After the equipment has been unpacked, check for any visible signs of damage and if any is

found contact your supplier.

Remove all the packaging items and transport safety, recyclable material should be disposed in

the intended containers, the main reason.

3.2 Delivery Content

Portable rotation viscometer PCE-RVI 3

Standard spindle set (R2-R7)

Spindle guard

Tools

4 x additional alkaline battery

AA / LR6 (6V)

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3.3 Battery Replacement

The portable Viscometer PCE RVI 3 is battery powered and is delivered with 4 pre-installed alkaline

batteries (4x AA/LR6 (6V) plus 4 extra replacement batteries). The Viscometer can be operated with

alkaline batteries (Type AA/LR6) or rechargeable batteries (Type AA/R6). In constant use, the battery life

is 24-30 hours. There is a battery charge indicator on the display.

The batteries are located on the underside of the Viscometer. They should be replaced as follows:

Remove the fastening screw as shown.

Remove the cover of the battery compartment and exchange the batteries. (Making sure to

observe the correct polarity)

To re-install the battery cover, slide the tabs into the slots and secure with screw. The serial

number and technical data of the Viscometer are found on the battery compartment cover.

3.4 Inserting the Spindle

Apart from the spindle R7, all the spindles are disc spindles. For this reasons, the

spindles must be dipped slowly into the liquid being tested, to avoid any build up of air bubbles

under the disc.

Hold the shaft firmly in one hand and push the spindle from underneath

onto the rotation axis.

To screw the spindle onto the shaft, turn the spindle anticlockwise, as

shown on the illustration.

After attaching the spindle to the shaft, dip the spindle into the liquid up

to the upper marker point. Take care not to come into contact with the

sides of the container with either the spindle or the shaft as this could

result in the vertical alignment of the shaft being knocked out of position

or damaged.

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Care must be taken at this point, in order to avoid bending the spindle or damaging the

shaft.

Both the thread on the spindle and on the shaft must be absolutely clean and dirt free.

The R7 spindle must be dipped into the liquid up to the middle marker point.

The spindle is made of stainless steel. Each spindle is separately coded on the head of the spindle.

3.5 Installing the Spindle Guard

In order to protect the most delicate working parts of

the PCE RVI 3, (The spindle and the shaft) from

being damaged, a cylindrical spindle guard is

supplied. This feature allows the volume of the

sample to be tested to be limited to the capacity of

the cylinder. Readings are therefore more accurate,

and as the cylinder fits exactly into an 800mm beaker

enables samples to be tested without the need to

physically hold the device.

The assembly of this apparatus is quite

simple, providing the illustrated instructions are

referred to and adhered to.

Screw the spacer bars (1) clockwise into the

pre-drilled holes in the Cylindrical Guard (2).

Then place the upper plate (3) on top of the

spacer bars and use the supplied screws to

fix.

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After assembling the spindle guard, it must be attached to the Viscometer.

Carefully push the Viscometer shaft into the upper disc of the spindle guard assembly as shown

in the diagram.

Using the Allen key provided, carefully tighten the spindle assembly to the Viscometer shaft.

Take extra care when tightening the fixing screws on the spindle guard to the

Viscometer, so as to avoid damage to the shaft or spindle.

After the spindle guard has been installed, the Viscometer is stable enough to stand upright, without the

need to physically hold on to it.

Now attach the desired spindle to the shaft, as described above. The device is now ready for use.

3.6 Stand Construction (optional)

Proceed as follows:

Push the rod into the bottom of the stand holder.

Turn the star-shaped grip to secure the rod.

Push the Viscometer holder onto the rod. Adjust the height of the holder

and tighten it using the twist-grip.

After setting up the stand, secure the Viscometer in the holder as shown

in the picture.

To avoid damage to the spindle and shaft, pay attention when securing the

Viscometer to the holder.

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