Key Product Highlights — Truflo TIR Insertion Sensor
1) High-Accuracy Insertion Flow Measurement Across Wide Line Sizes
- Pipe size range: ½”–24″ (DN15–DN600)
- Velocity operating range: 1–33 ft/s (0.3–10 m/s)
- Accuracy metrics: ±0.5% F.S. linearity and ±0.5% F.S. repeatability @ 25°C (77°F)
2) LED Flow-Rate Indication for Fast Local Verification
- Local LED display dedicated to flow rate indication
- Helps commissioning, troubleshooting, and spot-checking without relying only on the control system
3) Output Flexibility: Pulse + 4–20 mA + Optional Voltage
- Pulse output for frequency-based flow integration
- 4–20 mA for PLC/DCS analog inputs
- Optional 0–5 V voltage output (as specified as optional)
4) Long-Life ShearPro® Paddle Wheel Assembly
- ShearPro® contoured paddle reduces turbulence and drag (improves longevity vs. flat paddle designs per datasheet notes)
- ETFE (Tefzel®) paddle plus zirconium ceramic (ZrO₂) rotor pin/bushings for chemical/wear resistance
- 360° shielded rotor concept noted to help prevent paddle loss
5) Installation-Ready Mechanical Design with Secure Sealing
- Double O-ring seal for secure insertion sealing
- M12 quick connection option for cleaner installation and serviceability
- Compatible with Truflo’s extensive fitting lineup (tees, saddles, weld-on/glue-on adapters)
Technical Specifications
| Parameter | Specification |
|---|---|
| Series Focus | TIR Series (thermoplastic body options) |
| Sensor Type | Insertion paddle wheel flow meter sensor |
| Operating Range | 1–33 ft/s (0.3–10 m/s) |
| Pipe Size Range | ½”–24″ (DN15–DN600) |
| Linearity | ±0.5% of F.S. @ 25°C (77°F) |
| Repeatability | ±0.5% of F.S. @ 25°C (77°F) |
| Display | LED — Flow Rate |
| Outputs | Pulse; 4–20 mA; Voltage (0–5 V) (optional) |
| Frequency (nominal) | 49 Hz per m/s; 15 Hz per ft/s |
| Supply Voltage | 10–30 VDC ±10% regulated |
| Supply Current | <1.5 mA @ 3.3–6 VDC; <20 mA @ 6–24 VDC |
| Wetted Body Materials | PVC (dark), PP (pigmented), PVDF (natural) |
| O-Rings | FKM (standard); EPDM (optional); FFKM (optional) |
| Rotor Pin / Bushings | Zirconium ceramic (ZrO₂) |
| Paddle / Rotor | ETFE (Tefzel®), ShearPro® design |
| Sealing | Double O-ring seal |
| Connection (M12 pinout as listed) | 1 Brown: 10–30 VDC; 2 White: Pulse NPN; 3 Blue: -VDC; 4 Black: Pulse PNP; 5 Yellow: 4–20 mA+ or V*; 6 Grey: 4–20 mA- or V* (optional) |
| Standards & Approvals | UL, NSF, CE, RoHS compliant |
| Model Selection (PVC/PP/PVDF) | PVC: TIR-P-S (½”–4″), TIR-P-L (6″–24″) • PP: TIR-PP-S (1″–4″), TIR-PP-L (6″–24″) • PVDF: TIR-PF-S (1″–4″), TIR-PF-L (6″–24″) • Suffix: -E = EPDM seals |
Suitable Applications
The TIR Series is well suited for industrial flow measurement points that need local flow-rate indication plus reliable outputs for control systems—especially on larger pipes where insertion-style meters simplify installation and reduce downtime.
- PLC/DCS integration using 4–20 mA for flow rate and pulse for frequency/totalization functions handled externally
- Industrial water and utility water flow monitoring across ½”–24″ lines
- Chemical transfer and distribution where PVC/PP/PVDF wetted materials are preferred
- OEM packaged skids requiring a rugged insertion sensor with simple wiring (M12)
- Retrofits and system standardization using Truflo’s extensive ANSI/DIN fitting options
- Processes needing long-life rotor materials (ETFE paddle + zirconium ceramic wear components) and minimal maintenance