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• news & views<br />

Staff Update<br />

Mal & Evie just getting ready to start a game in the<br />

office - it starts with a gentle torment and then<br />

fires up to tumbling and chasing<br />

At last there has been some well needed rain in<br />

Bacchus Marsh, not enough to do more than just<br />

wet the ground, but every drop counts.<br />

With the colder weather now approaching, both<br />

Mal & Evie spend more time in the office keeping<br />

warm.<br />

A game of chase in the office is often on the cards<br />

– it certainly breaks the routine of the day for<br />

them, and also for all of us. When the game is<br />

over, they are happy to lie back and catch up on a<br />

bit of shut eye. It doesn’t seem to matter to them<br />

where they lay down, they are happy for us to walk<br />

around them or over them – once they are settled<br />

they are down for the count – happy to rest and<br />

recuperate.<br />

biennial 07-08<br />

all industries<br />

• news & views<br />

Service Department Update<br />

all industries<br />

Recently, our service engineer<br />

Richard Donaldson has been<br />

travelled around Australia<br />

conducting installations<br />

and calibrations on a variety<br />

of the HAAKE Viscometers<br />

and Rheometers.<br />

Additionally, there were installations during this<br />

period for Optical Control Systems products.<br />

During an eight week period he has carried out<br />

calibrations on the HAAKE Viscotester VT550,<br />

HAAKE RheoStress, HAAKE RheoStress 600,<br />

HAAKE RheoStress 100 and HAAKE RotoVisco<br />

RV1. A total of 28 viscometers and rheometers<br />

have now been calibrated across, Queensland,<br />

Victoria, South Australia, Western Australia and<br />

New South Wales. His frequent flyer miles by now<br />

will be adding up to a sizable amount and well<br />

deserved.<br />

Just to ensure that he was kept fully occupied, he<br />

has also been involved in the installation of three<br />

HAAKE PolyLab's –one in Victoria and two in<br />

Queensland, and one PRISM EuroLab 16 mm twin<br />

screw extruder in Victoria.<br />

But the installations didn’t stop with the<br />

rheological instruments; there were also a<br />

number of Optical Control Systems (OCS) units<br />

installed during this same eight week period both<br />

into Victoria into separate companies. The<br />

systems installed were the OCS Surface<br />

Inspection system for the laboratory - FSA100,<br />

and the modular surface inspection system for<br />

in use in production - FSP600.<br />

Calibration overview<br />

The ability of a measurement device to accurately<br />

measure a physical quantity changes with a<br />

number of factors. Time in service, temperature,<br />

humidity, environmental exposure, and abuse can<br />

all affect your measurement accuracy of your<br />

instrument.<br />

Calibration quantifies this change in measurement<br />

accuracy and, when required, adjusts the device's<br />

measurement capability to decrease error.<br />

Whether your calibration needs are driven by<br />

ISO-9000 requirements, by company mandates, or<br />

by Good Laboratory Practice, <strong>Rheology</strong> <strong>Solutions</strong><br />

Pty Ltd can tailor our service to suit your needs.<br />

Why Re-Calibrate?<br />

The accuracy of the electronic components used<br />

in all instruments drifts over time. The effects of<br />

time in service as well as environmental conditions<br />

add to this drift. As time progresses, changes in<br />

component values cause greater uncertainty in<br />

your measurements. At some point in time, the<br />

drift causes the instrument's uncertainty to<br />

become undefined, meaning the manufacturer can<br />

no longer predict the uncertainty and guarantee<br />

measurement results. To resolve this issue<br />

instruments must be calibrated at regular intervals<br />

as defined by the manufacturer.<br />

Richard Donaldson, Service Engineer<br />

Calibration is the comparison of an instrument's<br />

performance to a standard of known accuracy.<br />

The result of a calibration may be documentation<br />

showing the deviation of a measurement from the<br />

known standard or it may also include adjusting<br />

the instrument's measurement capability to<br />

improve measurement accuracy.<br />

The goal of calibration is to quantify and improve<br />

the measurement accuracy of your instrument.<br />

The benefits of maintaining properly calibrated<br />

equipment include:<br />

• Reduced measurement errors<br />

• Consistency between measurements<br />

• Increases in production yields<br />

• Assurance you are making accurate<br />

measurements<br />

We recommend that you periodically calibrate your<br />

hardware to ensure measurement accuracy and to<br />

keep your devices operating in peak precision.<br />

If you have any queries regarding the timing<br />

or arranging for your HAAKE viscometer or<br />

rheometer to be calibrated, contact Jackie by<br />

email jackiew@rheologysolutions.com.<br />

50 www.rheologysolutions.com

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