Brookfield DV2+Pro Viscometer Manual de usuario descargar pdf (Pagina 65)

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Brookeld Engineering Labs., Inc. Page 65 Manual No. M03-165-F0612

Appendix A - Cone/Plate Viscometer Set-Up

This Cone/Plate version of the DV-II+Pro uses the same operating instruction procedures as described

inthismanual.However,the“gap”betweentheconeandtheplatemustbeveried/adjustedbefore

measurements are made. This is done by moving the plate (built into the sample cup) up towards the

cone until the pin in the center of the cone touches the surface of the plate, and then by separating

(lowering) the plate 0.0005 inch (0.013mm).

When operating the Cone/Plate at elevated temperature, the gap must be set with the cup and spindle

equilibrated at the temperature recommended. Maximum temperature for Cone/Plate operation is

80ºC. Maximumoperational temperature of sample cup is 100ºC. Personal protection is recommended

when controlling to temperatures above 80ºC.

Note: Micringwillbecomehotwhencontrollingsamplecupattemperatures

above 50ºC.

Programmable DV-II+Pro Cone/Plate Viscometers, S/N 50969 and higher, have an Electronic Gap Set-

tingfeature.Thisfeatureenablestheusertoeasilyndthe0.0005inchgapsettingthatwasestablished

atBrookeldpriortoshipment.

The following information explains how to set the Electronic Gap and verify calibration of the DV-

II+Pro Viscometer.

A.1 Electronic Gap Setting Features

TOGGLE SWITCHallowsyoutoenable/disabletheElectronicGapSettingFeature:leftpositionisOFF

(disabled), right position is ON (enabled).

PILOT LIGHT is the red (LED) light; when illumi-

nated, it means the Electronic Setting Function is

sensing (enabled).

Note: Be sure the light is off before

introducing the test sample.

CONTACT LIGHT is the yellow (LED) light; when it

rstturnson,the“hitpoint”hasbeenfound.

SLIDING REFERENCE MARKERisusedafterndingthe

“hit point;” it is the reference for establishing the

0.0005 inch gap.

MICROMETER ADJUSTMENT RING is used to move the cup up or down in relation to the cone spindle.

Turning the ring left (clockwise) lowers the cup; turning it right (counterclockwise) raises the cup.

Each line on the ring represents one scale division and is equivalent to 0.0005 inch movement of

the plate relative to the cone.

Pilot Light

(red)

Toggle Swtich

Contact Light

(yellow)

Sliding Reference

Marker

Micrometer

Adjustment Ring

Figure A-1

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