Specifications
| Nova System Modules | Model 2-4 | Model 16-4 | ||
|---|---|---|---|---|
| Metering | ||||
| Metering Range | 200 nl/min - 200 ml/min | 1600 nl/min - 1280 ml/min | ||
| Metering Accuracy | < 0.5 %Cv | < 0.5 %Cv | ||
| NovaFlow™ Metering | ||||
| Range | 200 nl/min - 20 ml/min | 1600 nl/min - 200 ml/min | ||
| Accuracy | < 1 %Cv | < 1 %Cv | ||
| Pulsation (%Cv of total flow at mid range rate) | 3 %Cv | 3 %Cv | ||
| NovaSpense™ Dispensing | ||||
| NovaSpense™ Dispensing Accuracy | 0.1 %Cv | 0.1 %Cv | ||
| NovaSpense™ Dispensing Precision | 0.05 %Cv | 0.05 %Cv | ||
| Motor: Servo with features for increased dispensing accuracy-and near-pulseless metering. | ||||
| Basic System Modules | Model 2-1 | Model 2-4 | Model 16-2 | Model 16-4 |
| Metering** | ||||
| Range w/ stepper motor: integrated motor/driver | 0.2 - 50 ml/min | .08 - 200 ml/min | ||
| Range w/ stepper motor: Two-phase 1.8 degree | 0.2 - 50 ml/min | 6 - 200 ml/min | 25 - 640 ml/min | 50 - 1280 ml/min |
| Accuracy | < 2 %Cv | < 2 %Cv | < 2 %Cv | < 2 %Cv |
| Dispensing | ||||
| Accuracy** | 1-20 %Cv | 1-20 %Cv | 1-20 %Cv | 1-20 %Cv |
| Repeatability | < 1 %Cv | < 1 %Cv | < 1 %Cv | < 1 %Cv |
| General specs for all systems | Model 2-1 | Model 2-4 | Model 16-2 | Model 16-4 |
| Number of cylinders | 1 | 4 | 2 | 4 |
| Displacement volume per cylinder (ml/rev) | 0.2 | 0.2 | 1.6 | 1.6 |
| Displacement total (ml/rev) | 0.2 | 0.8 | 3.2 | 6.4 |
| Pressure max. operating | 125psi (8bar) | 125psi (8bar) | 125psi (8bar) | 125psi (8bar) |
| Manifold Fittings | 1/16" NPT | 1/16" NPT | 1/8" NPT | 1/8" NPT |
| (custom fittings are available) | 1/4"-28 UNF | 1/4"-28 UNF | 1/4" NPT | 1/4" NPT |
| Approx. Dimensions l x w x h (inches) | 5.6 x 2.2 x 2.8 | 7.6 x 2.8 x 2.8 | 9.6 x 5.0 x 5.0 | 9.6 x 5.0 x 5.0 |
| Weight (varys depending on motor type) | 1.6lb (0.7kg) | 3.8lb (1.7kg) | 8.6lb (3.9kg) | 11.1lb (5.0kg) |
| Dispensing specs are based on tests with
1.0 mL of RO water at room temperature and 1 atm of pressure. * Please consult Car-May for information specific to your application. * * Specifications are dependent on control system used. * * * For flow rates of less than 1 mL/min the calculated instantaneous pulsation levels increase. Observed pulsation levels depend greatly on fluidic setup and measurement technique. Cv: The coefficient of variation, expressed in percent, is used to describe the standard deviation (s) relative to the mean (X). Cv = [ (100) (s)/ X ] |
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Wetted Materials
The wetted parts of "Standard configuration" Car-May System Modules are made from chemically-resistant materials, creating a versatile, durable fluid control system. For applications that involve more aggressive fluids, an even more robust "Inert" wetted parts option is available. Other options may be available—please contact us about your "problem liquid."
| Standard | Inert | |
|---|---|---|
| Housing | Delrin (2-series) Ertalyte or Aluminum (16-series) |
PEEK (2-series) Ertalyte or Aluminum (16-series) |
| Manifold | PEEK, Tefzel, or 316L Stainless Steel |
PEEK, Tefzel, or 316L Stainless Steel |
| Manifold O-rings | Viton | Perfluoroelastomer |
| Port Plates | Ceramic Al2O3 | Ceramic Al2O3 |
| Pistons | Teflon or UHMW | Teflon or UHMW |
| Cylinders | Borosilicate glass (Pyrex) | Borosilicate glass (Pyrex) |
| Connecting Rods | PEEK | PEEK |
