Product features:

Pour 100ml of sample into a copper cup and measure the outflow rate within 30 to 100 seconds.

Product Usage:

Portable viscometer, easy to use, stable performance, flow cup body and outlet made of corrosion-resistant materials. Mainly used to determine the kinematic viscosity of Newtonian or approximate Newtonian fluid coatings, and can also be used for comparative measurements as needed. The NDJ-5 viscometer cup body is made of high-quality copper material. The NDJ-5 viscometer cup is made of synthetic rubberwood and has good corrosion resistance.

Installation method:

1Place the flow cup in the circular ring of the cross arm.

2The viscometer stand consists of an adjustable horizontal platform cross, with circular water bubbles attached to the cross arms. Adjust the horizontal bolts of the platform to center the water bubbles.

instructions:

1Cleaning treatment of flow cup: Dip a soft paper with good water absorption in a solvent that is easy to remove oil stains and repeatedly wipe the inner wall. Twist the paper into a rope shape and repeatedly pull it straight in the flow hole until it is clean.

2Pour in the tested liquid: Block the outflow hole of the cup with your fingers (if there is corrosive liquid, use the stopper on the cup) and slowly pour the tested liquid into the cup until the liquid level protrudes from the upper edge of the cup. If there are bubbles, wait for the bubbles to float to the surface, and use a clean flat glass plate to push along the edge once to remove the protruding liquid level and bubbles, so that the horizontal plane of the tested liquid is on the same level as the upper edge of the flow cup.

3Measure the outflow time: Release the blocked finger or push open the stopper, and start the stopwatch at the same time. The test solution flows out in a continuous line. When the line from the orifice starts to break, stop the stopwatch and record the stopwatch reading t.

Calculate viscosity value:

γ=（t-6）/0.223

Gamma kinematic viscosity value (mm ²)

t-Outflow time (30s ≤ t ≤ 100s)

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