Qingdao Haitongda Special Instrument Co.,Ltd.

Qingdao Haitongyuanda Special Instrument Co.,Ltd.

Model MLN Marsh Funnel Viscometer

Instruction Manual

Manual No.13603, Revision 0/1

1 Introduction

The Haitongda Model MLN marsh funnel viscometer is a simple device for daily viscosity measurement.

Funnel viscosity is the ratio of the speed of the slurry as it passes through the outlet tube(shear rate)to the force(weight of the slurry) causing the slurry to flow(shear stress).Funnel viscosity is reported as the seconds required for one quart of slurry to flow out a full funnel.

Equipment

•Marsh Funnel

•Measuring Cup

2 Features and Specifications 

See Table 2-1, Table 2-2 for specifications. The photo in Figure 2-1 shows the viscometer and the detailed drawing in Figure 2-2 identifies the individual parts.

Figure 2-1 Model MLN Marsh Funnel Viscometer

                        Figure 2-2 Model MLN Marsh Funnel Viscometer Schematic

Table 2-1 Model MLN Marsh Funnel Viscometer Specifications

Table 2-2 Model MLN Marsh Funnel Viscometer Specifications

3 Operation

1. Collect a fresh slurry sample.

2. Hold the funnel erect with a finger over the outlet tube, and pour the slurry into the funnel through the screen until the slurry level reaches the bottom of the screen. (The screen will filter out the larger particles that could clog the outlet tube.)

3. Quickly remove your finger from the outlet tube, and at the same time, begin timing the slurry outflow.

4. Allow one quart (946ml) of slurry to flow from the Marsh funnel into a measuring container.

5. Record the seconds it takes for the quart of slurry to flow from the funnel. Report this value as the Marsh funnel viscosity. Also record the temperature of the slurry sample.

Qingdao Haitongda Special Instrument Co.,Ltd.

Qingdao Haitongyuanda Special Instrument Co.,Ltd.