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Panametrics
Panametrics DigitalFlow DF868 Ultrasonic Flow Meter
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المعاملات الرئيسية
Supply
100–130 or 200–265 VAC 50/60 Hz; optional 12–28 VDC; 20 W max
Display
Two independent 64×128 backlit graphic LCDs
Measurement Principle
Patented Correlation Transit-Time digital signal processing
Fluid Types
Ultraclean and most dirty liquids including entrained bubbles/solids
Pipe Sizes Clamp On
0.5 in to >200 in (12.7 mm to >5 m) depending on transducers
Pipe Sizes Wetted
1 to 200 in (25.4 mm to 5 m) and larger
| المعامل | القيمة |
|---|---|
| Supply | 100–130 or 200–265 VAC 50/60 Hz; optional 12–28 VDC; 20 W max |
| Display | Two independent 64×128 backlit graphic LCDs |
| Measurement Principle | Patented Correlation Transit-Time digital signal processing |
| Fluid Types | Ultraclean and most dirty liquids including entrained bubbles/solids |
| Pipe Sizes Clamp On | 0.5 in to >200 in (12.7 mm to >5 m) depending on transducers |
| Pipe Sizes Wetted | 1 to 200 in (25.4 mm to 5 m) and larger |
| Velocity Range | –40 to 40 ft/s (–12.2 to 12.2 m/s); rangeability 400:1 |
| Accuracy Clamp On | Typical ±1–2% of reading (>6 in ID); ±2–5% (<6 in); ±0.5% with process calibration |
| Accuracy Wetted | Typically ±1% of reading after proper installation |
| Repeatability | ±0.1% to 0.3% of reading |
| Channels | Standard one-channel; optional two channels (two pipes or dual-path) |
| Outputs | Two isolated 0/4–20 mA standard; expandable up to 12 analog, 6 alarm relays, 12 frequency/totalizer |
| Operating Temperature | –4 to 131 °F (–20 to 55 °C) |
| Enclosure Dimensions | 14.24 × 11.4 × 5.1 in (362 × 290 × 130 mm); weight ~11 lb (5 kg) |
| Measurement Parameters | Volumetric flow, totalized flow, velocity; built-in energy (BTU) with optional RTDs |