Brookfield DV-I Prime Uživatelský manuál stáhnout pdf (Strana 59)

Brookeld Engineering Laboratories, Inc. Page 59 Manual No. M/07-022-D0613

Calibration Check Procedures for DIN Adapter

When a DIN UL Adapter is used, the water bath is stabilized at the proper temperature:

1) Put the proper amount of viscosity standard uid into the UL Tube. (Refer to the UL

Adapter instruction manual).

2) Attach the spindle (with extension link and coupling nut) onto the DV-I PRIME.

3) Attach the tube to the mounting channel.

4) Lower the tube into the water bath reservoir, or if using the ULA-40Y water jacket, connect

the inlet/outlets to the bath external circulating pump.

5) Allow sufcient time for the viscosity standard, sample chamber and spindle to reach test

temperature.

6) Measure the viscosity and record the viscometer reading; include % and cP (mPa•s).

NOTE: The spindle must rotate at least ve (5) times before readings are taken.

Calibration Check Procedure for a Helipath Stand and T-Bar Spindles

T-Bar spindles should not be used for verifying calibration of the DV-I PRIME Viscometer.

When a Helipath Stand and T-Bar spindles are used:

Remove the T-bar spindle and select a standard LV (#1-3) or RV,HA,HB (#1-6) spindle.

Follow the procedures in the beginning of this section, entitled Calibration Procedure for

LV (#1-3) and RV, HA, HB (#1-6) Brookeld spindles.

Calibration Check Procedure for Spiral Adapter

1) Place the viscosity standard uid (in the proper container) into the water bath.

2) Attach the spindle to the viscometer. Attach chamber (SA-1Y) and clamp to the viscometer.

3) Lower the DV-I PRIME into measurement position. Operate the viscometer at 50 or 60

RPM until the chamber is fully ooded.

4) The viscosity standard uid, together with the spindle, should be immersed in the bath.

Don’t introduce air bubbles.

Stirring the uid periodically (operate at 50 or 60 RPM), prior to taking measurements to

encourage temperature equilibrium.

NOTE: The spindle must rotate at least ve (5) times before readings are taken.

5) Measure viscosity and record the viscometer reading; include % and cP (mPa•s). Instrument

accuracy is ± 2% of the maximum viscosity range and not the standard 1%.

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Brookfield DV-I Prime Uživatelský manuál Strana 59