Zahn Cup
1.Power: Manual
2.Usage: Viscosity Testing
3.Color: Silver
4.Warranty: 1 year
Conversion
One can convert efflux time to kinematic viscosity by using an equation for each cup specification number, where t is the efflux time and ν is the kinematic viscosity in centistokes.
Zahn Cup #1: ν = 1.1(t - 29)
Zahn Cup #2: ν = 3.5(t - 14)
Zahn Cup #3: ν = 11.7(t - 7.5)
Zahn Cup #4: ν = 14.8(t - 5)
Zahn Cup #5: ν = 23t
Specifications:
Model | Cup Volume | Hole Diameter | Viscosity Range | Fluid Run Out Time |
Zahn1# | 44ml | Φ1.93mm | 5-60cSt | 35-80sec |
Zahn2# | 44ml | Φ2.69mm | 20-250cSt | 20-80sec |
Zahn3# | 44ml | Φ3.86mm | 100-800cSt | 20-80sec |
Zahn4# | 44ml | Φ4.39mm | 200-1200cSt | 20-80sec |
Zahn5# | 44ml | Φ5.41mm | 400-18000cSt | 20-80sec |