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S90 ZAHN Signature Series Dip Cup

Calibrated Viscosity Cup

All Stainless Steel

S90 Dip Cup
  • S90/Zahn Signature Dip Viscosity cups are an improved version of the time honored Zahn Signature viscosity cups. GARDCO is the only producer authorized to use the Zahn name and has added the S90 designation to identify the improved viscosity cups manufactured on new state-of-the-art equipment to insure optimum quality and uniformity.

  • Calibration of the S90/Zahn cups match the earlier Zahn Signature cups.

  • Conversion formulas and tables relating cup efflux time in seconds to viscosity in centistokes are identical for both series of cups.

  • S90/Zahn cups qualify for certification under ANSI/NCSL Z540-1 or MIL-STD-45662A, as applicable.

  • S90/Zahn cups are calibrated with standard "G" series oils traceable to the National Institute of Standards & Technology.

  • "G" series calibration oils are produced in accordance with ISO 9002.

NOTE: Efflux time from these cups does not meet ASTM specifications, but tables are available for converting S90/Zahn cup efflux time to EZ™ Zahn cup efflux time which complies with ASTM D 4212.

Advantages
  • Cup flow characteristics are defined by a mathematical formula and standard “G” series oils.
  • Furnished with each S90/Zahn cup is a conversion table relating cup efflux time to the nearest tenth of a second to viscosity in centistokes.
  • S90/Zahn cups, with the above advantages, cannot be confused with other, lesser defined cups as they are produced, calibrated and sold only by Paul N. Gardner Company and authorized dealers.
  • Ransom & Randolph recommends the S90/Zahn cups as the most reliable viscosity cups to measure and control the consistency of ceramic shell slurries.

Range Specification
S90/Zahn
Item Number 		Cup No. Seconds Range Centistoke Range
VI-2101 1 31 to 60 15 to 78
VI-2102 2 19 to 60 39 to 238
VI-2103 3 11 to 60 63 to 604
VI-2104 4 10 to 60 97 to 899
VI-2105 5 10 to 60 219 to 1627
Certificate of Calibration available at additional charge for all cups.

Conversion Formulas
Cup No. Efflux Time Seconds “T” from Centistokes “V” Centistokes “V” from Efflux Time in seconds “T”
1
T = (V + √ V2 + 6805) ÷ 3.18
V = 1.59T - 1070 ÷ T
2
T = (V + √ V2 +12707) ÷ 8.36
V = 4.18T - 760 ÷ T
3
T = (V + √ V2 + 23529) ÷ 20.46
V = 10.23T - 575 ÷ T
4
T = (V + √ V2 + 32983) ÷ 30.26
V = 15.13T - 545 ÷ T
5
T = (V + √ V2 + 58903) ÷ 54.54
V = 27.27T - 540 ÷ T
Note: Furnished with each cup is a conversion table for each tenth of a second within the cup range.

Standard“G” Series Calibrating Oils
Catalog Number Oil Number Use With Cup Number Nominal Centistokes* at 25°C., 77°F.
VI-3805 G-20 1 35
VI-3815 G-60 2 120
VI-3820 G-100 3 230
VI-3825 G-350 4 and 5 880
*Certified value is printed on container label. Note: A graph is furnished with each cup showing efflux time of the "G" oil from 20 to 27 degrees Celsius.

These standard oils prepared expressly by the Cannon Instrument Company for the Paul N. Gardner Company are produced in accordance with ISO 9002:1994; EN ISO 29002:1994; BS EN ISO 9002:1994; ANSI/ASQC Q9002:1994.

Caution: Silicone fluids should not be used to calibrate viscosity cups. These materials change the interface between the cup surface and the test material and therefore change the cup calibration. The following is taken from ASTM D 445: Viscometers used for silicone fluids should be reserved for the exclusive use of such fluids. Solvent washings from these viscometers should not be used for cleaning other viscometers.


Conversion Table Between Efflux Time in Secs. and Centistokes
Conversion Table
 

Flow characteristics of S90/Zahn cups are accurately defined by mathematical formula relating cup efflux time to viscosity. The formula for each cup in the series is shown in the Conversion Formula table. For convenience, the formula for each cup has been solved for each tenth of a second within the normal cup range. Results are available in table form as shown greatly reduced at the left and are furnished with each cup. They are also available in sets for each cup in the series.

Use the table as follows: Assume an efflux time of 45.6 seconds. Read down the left column to the 45 line and then to the right on this line to the 0.6 column. The value at the intersection is 173.9 centistokes. The table may be read in reverse to find efflux time in seconds from a known centistoke value.

Instructions For Use
  1. Select the cup to be used from the Range Specification table.
  2. Insure that the cup is clean, especially around the orifice.
  3. Adjust temperature of the material to be tested, if necessary.
  4. Holding the cup by the ring, immerse it into the test material.
  5. Measure and record temperature of material encompassed by cup.
  6. Hold cup vertically by inserting index finger into handle ring. In a quick, steady motion, lift the cup out of the sample material, starting the timer when the top edge of the cup breaks the surface. During the flow time, hold the cup no more than 6” above the level of the sample material.
  7. Stop the timer when the first definite break in the stream at the base of the cup is observed.
  8. Record cup name, number and efflux time in seconds with temperature.
  9. Promptly clean the cup taking care not to abrade orifice. Use a length of nylon fishing line to clean the orifice.

Care of Cup
GARDCO produced and calibrated S90/Zahn viscosity cups are made of stainless steel except for the name plate. These cups will give years of satisfactory service requiring only thorough cleaning following each use. Even so, it is good practice to periodically confirm cup calibration. This is easily done with use of appropriate “G” oil listed in the Calibrating Oils table. Centistoke label value of the oil is traceable to the National Institute of Standards and Technology.


Accessories

Accessories


Atkins Platinum RTD Thermometer and Probe System RTD Thermometer
  • Long-term stability at high temperatures
  • O-ring sealed housing makes instrument water resistant
  • Measures -76°F to 500°F (-60°C to 260°C)
  • Probe permanently attached by 29" high temperature wrap-around cable.
Technical Data
Resolution: 0.1 degrees from -76.0°F to 199.9°F (-60.0°C to +93.3°C)
1.0 degrees from 200°F to 500°F
Range: -76°F to 500°F (-60°C to 260°C)
Accuracy: ±0.5F° from -76.0°F to 199.9°F
±1F° from 200°F to 500°F
(±0.3C° from -60.0°C to 93.3°C; ±1C° from 200°C to 260°C)
Battery Life: 500 hours, 9VDC (400 μA current drain)
Lo Batt Indicator: 10 hour warning
Ambient Temp:
 Operating/ -10°C to 50°C
Storage/ -25°C to 60°C

Available Items - Literature
Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices
VI-2101 No. 1 S90/Zahn Viscosity Cup (Each) with Conversion Chart $119.00
VI-2101/C Certified No. 1 S90/Zahn Viscosity Cup (Each) with Conversion Chart 269.00
VI-2102 No. 2 S90/Zahn Viscosity Cup (Each) with Conversion Chart 119.00
VI-2102/C Certified No. 2 S90/Zahn Viscosity Cup (Each) with Conversion Chart 269.00
VI-2103 No. 3 S90/Zahn Viscosity Cup (Each) with Conversion Chart 119.00
VI-2103/C Certified No. 3 S90/Zahn Viscosity Cup (Each) with Conversion Chart 269.00
VI-2104 No. 4 S90/Zahn Viscosity Cup (Each) with Conversion Chart 119.00
VI-2104/C Certified No. 4 S90/Zahn Viscosity Cup (Each) with Conversion Chart 269.00
VI-2105 No. 5 S90/Zahn Viscosity Cup (Each) with Conversion Chart 119.00
VI-2105/C Certified No. 5 S90/Zahn Viscosity Cup (Each) with Conversion Chart 269.00
VI-2100/C NIST & ANSI/NCSL Z540-1 or MIL-STD-45662A, as applicable, Calibration Certificate 150.00
VI-3805 G-20 Certified Viscosity Standard –Pint 84.00
VI-3815 G-60 Certified Viscosity Standard –Pint 84.00
VI-3820 G-100 Certified Viscosity Standard –Pint 84.00
VI-3825 G-350 Certified Viscosity Standard –Pint 84.00
VI-VCC-6 Viscosity Cup Equivalent Wall Chart (download here) FREE
VI-ZGS Set, 5 Tables - S90/EZ Seconds to Centistokes 20.00
VI-EZZS Set, 5 Tables - S90/EZ Curves 20.00
Equivalent Charts cover Gardco Calibrated Viscosity Cups and are based on conversion formulas of a type & with parameters as referenced in The Encyclopedia of Polymer Science & Engineering (Vol. 4, Second Edition, John Wiley & Sons, Inc.). Standard oils traceable to the National Institute of Standards & Technology were used in experimental development of these formulas.
VI-2015

Wood Stand to Hold Five Cups

 39.95
VI-2018 Aluminum Carousel Stand w/5 Hooks 245.00
TM-14-1/2 Stopwatch, 1/10 Second 92.00
TM-AX705 Ultimate Stopwatch, 1/100 32.00
TM-AX705/C Ultimate Stopwatch, 1/100 - Certified traceable to N.I.S.T 54.00
TH-0482 Thermometer, Glass, blue spirit filled, 4-1/2", 20° to 30°C 36.00
TH-16100860 GT-100R Thermometer, Stainless, 8" Stem, 25° to 125°F 32.74
TH-16100875 GT-100R Thermometer, Stainless, 8" Stem, 0° to 50°C 32.74
TH-36036-F Platinum RTD Thermometer System (-76° to 500°F) 357.00
TH-36036-C Platinum RTD Thermometer System (-60° to 260°C) 357.00
LA-2029060 Griffin Beaker, 600 ml 19.50
Viscosity Cups are non-returnable items. Subject to final sale.
S90TM is a Registered Trade Mark of the Paul N. Gardner Company, Inc
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