Ditch-witch FM13V User Manual download pdf (Page 32)

32 FM13V - OPERATION

Mix Drilling Fluid

32 FM13V - OPERATION

Mix Drilling Fluid

Measuring Funnel Viscosity

Viscosity is the measure of internal resistance of a fluid to flow;

the greater the resistance, the higher the viscosity. Viscosity of

drilling fluids must be controlled.

To determine viscosity, you will need a Marsh funnel and a

asuring cup, available from your Ditch Witch Dealer.

1. Take a fresh sample from the

drilling fluid tank

. The sample

must be more than 1 qt

(.95 L).

2. Hold funnel over 1 qt (.95 L)

measuring cup and place a

finger over outlet.

3. Pour test sample

into top of

funnel through screen to

ensure no large particles

enter the funnel that might

alter the measurement. Fill to screen.

4. Remove finger and time flow. Count the number of seconds

cessary for 1 qt (.95 L) of fluid to pass through funnel. The

number of seconds is the viscosity.

5. Thoroughly rinse measuring cup and Marsh funnel with

water.

Measuring Funnel Viscosity

Viscosity is the measure of internal resistance of a fluid to flow;

the greater the resistance, the higher the viscosity. Viscosity of

drilling fluids must be controlled.

To determine viscosity, you

will need a Marsh funnel and a

measuring cup, available from your Ditch Witch Dealer.

1. Take a fresh sample from the

drilling fluid tank. The sample

st be more than 1 qt

(.95 L).

2. Hold funnel over 1 qt (.95 L)

measuring cup and place a

finger over outlet.

3. Pour test sample into top of

funn

el through screen to

ensure no large particles

enter the funnel that might

alter the measurement. Fill to screen.

4. Remove finger and time flow. Co

unt the number of seconds

necessary for 1 qt (.95 L) of fluid to pass through funnel. The

number of seconds is the viscosity.

5. Thoroughly rinse measuring cup and Marsh funnel with

water.

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Ditch-witch FM13V User Manual Page 32

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