Viscosity Testers
Also known as Zahn cups, these testers let you calculate viscosity based on the speed at which a liquid drains through a cup with a hole at the bottom. To determine viscosity, dip the cup in a liquid until it is completely filled, lift the cup out of the liquid, and time how many seconds it takes for the liquid to drain out of the hole in the bottom. Use the included formula to convert seconds to centipoise. Testers cannot be sold to Canada due to import regulations.
| For Testing | Viscosity Range, cP | Lg. | Wd. | Dp. | Specifications Met | Cannot Be Sold To | Each | |
304 Stainless Steel  | ||||||||
|---|---|---|---|---|---|---|---|---|
| Very Thin Oils | 18 to 56 | 13 3/4" | 1 3/8" | 2 3/8" | ASTM D4212 | Canada | 0000000 | 0000000 |
| Thin Oils and Lacquers | 40 to 230 | 13 3/4" | 1 3/8" | 2 3/8" | ASTM D4212 | Canada | 0000000 | 000000 |
| Medium Oils and Mixed Paints | 150 to 790 | 13 3/4" | 1 3/8" | 2 3/8" | ASTM D4212 | Canada | 0000000 | 000000 |
| Heavy Liquids | 220 to 1,100 | 13 3/4" | 1 3/8" | 2 3/8" | ASTM D4212 | Canada | 0000000 | 000000 |
| Very Heavy Liquids and Mixtures | 460 to 1,725 | 13 3/4" | 1 3/8" | 2 3/8" | ASTM D4212 | Canada | 0000000 | 000000 |
Rotational Viscosity Meters
To help ensure batch quality and consistency, these meters use the resistance met by their rotating spindle to measure the viscosity of liquid samples more quickly than manual testers. Results show immediately on a digital display. They also display torque percentage, which is often used by labs. If the torque percentage is outside the ideal range (10%-90%), switch to a different size spindle to improve accuracy. These meters come with multiple spindles to accommodate a wide range of viscosities. Spindles attach to meters magnetically, so you can add them with one hand and there’s little risk of bending them. They cannot be sold to the regions listed due to import regulations.
These meters require no external programming—switch between samples by making adjustments on the display. Results are not saved, so plug meters into a printer to create a record.
Use these meters with standard 600 ml beakers.
1 cP-6,000,000 cP meters work with low-viscosity fluids with a viscosity similar to juice, ink, and mouthwash. Add spindle guards to prevent measurement errors caused by waves and ripples.
60 cP-320,000,000 cP meters test high-viscosity fluids that are similarly viscous to mayonnaise, peanut butter, and hair gels.
Add temperature probes to account for the impact of temperature on viscosity.
Digital Display | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Testing | Speed Setting Range, rpm | Accuracy | Repeatability Range | Temp. Range, °F | Number of Spindles | Ht. | Wd. | Dp. | Type | Size | Voltage | Plug Type | NEMA Style | Cord Lg., ft. | Includes | Cannot Be Sold To | Each | |
Polycarbonate/ABS Plastic Blend with 304 Stainless Steel Stand and 316 Stainless Steel Spindles | ||||||||||||||||||
1 cP-6,000,000 cP | ||||||||||||||||||
| Medium Oils and Mixed Paints, Thin Oils and Lacquers, Very Thin Oils | 0-200 | ±1% | -0.2% to 0.2% | 32° to 100° | 4 | 17 1/2" | 14 1/4" | 11 1/8" | LCD | 3.5" | 240V AC | 3 Prong | 5-15 | 10 | USB Cable | Canada | 0000000 | 000000000 |
60 cP-320,000,000 cP | ||||||||||||||||||
| Heavy Liquids, Medium Oils and Mixed Paints, Very Heavy Liquids and Mixtures | 0-200 | ±1% | -0.2% to 0.2% | 32° to 100° | 6 | 17 1/2" | 14 1/4" | 11 1/8" | LCD | 3.5" | 240V AC | 3 Prong | 5-15 | 10 | USB Cable | Canada | 0000000 | 00000000 |
| For Meter Viscosity Range, cP | Ht. | Wd. | Dp. | Each | |
316 Stainless Steel | |||||
|---|---|---|---|---|---|
| 1-6,000,000 | 6 1/2" | 2 3/8" | 1 1/8" | 0000000 | 0000000 |
| Lg. | Tip Dia. | Temp. Range, °F | Cable Lg., ft. | Each | |
316 Stainless Steel | |||||
|---|---|---|---|---|---|
| 3" | 1/8" | -75° to 550° | 3 | 0000000 | 0000000 |