The Fox Model FT3 measures two important process variables with a single instrument, providing isolated 4-20mA and pulse outputs for flow rate, and a 4-20mA pulse output for process gas temperature or a second flow rate output.
Direct mass flow measurement, exceptional low-flow sensitivity, fast response, and low maintenance requirements distinguish the Fox Model FT3. Virtually immune to changes in temperature and pressure, the flow meter delivers repeatable, accurate mass flow measurement under varying loads.
It’s rugged, no- moving-parts design is also ideal for high-vibration industrial environments and enhanced EMI immunity makes it suitable for environments where electric motors, ignitors or dirty power may affect instrument performance.
Specification
| Performance Specifications | ||
|---|---|---|
| Type | Insertion | Inline |
| Flow Accuracy | ±1 % of reading ±0.2 % FS; with 15D upstream / 10D downstream | ±1 % of reading ±0.2 % FS; with 8D upstream / 4D downstream |
| Flow Repeatability | ±0.2 % FS | |
| Flow Response Time | 0.9 s (one time constant) | |
| Temperature Accuracy | ±1.8 °F (±1 °C) to 250 °F; ±3.6 °F (±2 °C) to 650 °F | |
| Calibration | Factory calibrated to NIST standards; includes CAL‑V™ & Zero CAL‑CHECK® | |
| Operating Specifications | ||
| Flow Units (field-selectable) | SCFM, SCFH, NMPS, NM³/H, NLPM, LB/H, KG/H, SLPM, SFPM, … | |
| Flow Rates | 15 to 60,000 SFPM (0.07–280 NMPS) | |
| Turndown | up to 1000:1 (100:1 typical) | |
| Gas Pressure (max) | Insertion: 500 psig (34.5 barg) | Inline: 300 psig (NPT) / 230 psig (150 lb flange) / 285 psig (CS flange) |
| Relative Humidity | ≤90 % RH non-condensing | |
| Physical Specifications | ||
| Sensor Material | 316 SS standard; Hastelloy C276 optional | |
| Enclosure | NEMA 4X (IP68) aluminum; dual ¾″ NPT (or M20) conduits | |
| Installation | Insertion: compression fitting to welded ¾″ coupling | Inline: compression fitting included |
More information: Brochure FT3
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