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The Model 802 is the very latest in Valeport's electromagnetic flow sensing technology, developed over many years from the original IOS design. State of the art electronics design ensures low power operation, yet maintaining low noise and high stability. A range of sensor heads and electronics packages mean that the Model 802 can be used in a wide variety of real time applications, or can easily be interfaced to customers' existing systems to provide a reliable, accurate current meter.
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The Model 802 is available with a choice of different sensor
shapes to suit a variety of applications. The specific
characteristics of each type are as follows: |
Size : 3.2, 5.5 or 11cm Ø
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Accuracy : ±1% measurement accuracy |
±5mm/s zero stability
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±12mm/s (rms) signal noise @ 1m/s (3.2cm)
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±10mm/s (rms) signal noise @ 1m/s (5.5cm)
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±2mm/s (rms) signal noise @1m/s (11cm)
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| Tilt Response : -5% @ 25° |
| Heading Error : ±0.5° max |
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| Spherical: |
Suitable for non-laminar flow applications, where durability is of
prime concern. Sampling volume is a sphere surrounding the
sensor, 3 x Ø of sensor. |
| Size : 3.2, 5.5cm Ø |
| Accuracy : ±1% measurement accuracy |
±5mm/s zero stability
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±20mm/s (rms) signal noise @ 1m/s (3.2cm)
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±15mm/s (rms) signal noise @ 1m/s (5.5cm)
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| Tilt Response : -5% @ 90° |
| Heading Error : ±5° max |
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| Annular: |
Suitable for non-aggressive applications, giving excellent
performance under non-laminar flow conditions. Sampling
volume is a sphere within the sensor ring, of 10cm Ø. |
| Size : 17cm Ø |
| Accuracy : ±1% measurement accuracy |
±5mm/s zero stability
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±10mm/s (rms) signal noise @ 1m/s
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| Tilt Response : -5% @ 90° |
| Heading Error : ±3° max |
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| Data Acquisition: |
| Sample Rate : 1, 2, 4, 8 or 16Hz, or data on demand |
| Control : Via ASCII control codes |
| Filter Delay : Digital FIR filter, with delay dependent on rate |
1Hz 8 samples
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2Hz 8 samples
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4Hz 7 samples
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8Hz 15 samples
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16Hz 5 samples
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