Brookfield DV3T Rheometer Manual do Utilizador descarregar pdf (Página 95)

Brookeld Engineering Labs., Inc. Page 95 Manual No. M13-2100

A.3 Setting the Gap

1. Movethetoggleswitchtotheright;thiswillturn

on(enable)theGapSettingFeature.ThePilot(red)

lightwillbeilluminated.

Note: The motor should be OFF.

2. Ifthecontactlight(yellow)isilluminated,turnthe

micrometeradjustmentringclockwise(asyoulook

downontheinstrument)untilthelightisnolonger

illuminated(seeFigure A-5).

3. Iftheyellowcontactlightisnotilluminated,slowly

turn the micrometer adjustment ring in small

increments (one or two scale divisions) counter-

clockwise.

 Continuemovingthemicrometeradjustment ring

slowly counter-clockwise until the contact light

(yellow) rst turns on.  THIS IS THE “HIT

POINT.”

4. Adjusttheslidingreferencemarker,rightorleft,

totheclosestfullscaledivisionmark(see Figure

A-6).

5. Turn the micrometer adjustment ring one scale

divisiontothelefttomeetthelineonthesliding

reference marker. THE YELLOW CONTACT

LIGHT SHOULD GO OFF.

6. You have established the gap space needed for

measurement.  Now turn the toggle switch OFF

(left);theredpilotlightshouldgooff.

Theviscosityofelectricallyconductiveuids

maybeaffectedifreadingsaretakenwiththe

ElectronicGapSettingfeature“on”.Besureto

shutthefeature“off”beforetakingreadings!

7. Carefullyremovethesamplecup.

Note:

1. The cup may be removed and replaced without resetting the gap if the micrometer

adjustmentringhasnotbeenmoved.

2. Removethespindlefromtherheometerwhencleaning.

3. Re-establishthehitpointeverytimethespindleisattached/detached.

Moves Away

from Hit Point

(clockwise)

LEFTx

Moves Towards

Hit Point

(counter-clockwise)

RIGHT

Full Scale

Division Marks

Sliding

Reference

Marker

Figure A-5

Figure A-6

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 124 125

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