PTFM-ONE-DT

Dual Pitot Tube Exhaust Flow Meter

The PTFM-ONE DT is a standalone exhaust gas flow meter utilizing dual pitot tubes and ultra-fast 1 kHz pressure sampling. Engineered for high accuracy across full engine operating ranges and capable of withstanding extreme temperatures, it delivers comprehensive real-time flow measurement without compromising engine performance.

PTFM-ONE-DT

Dual Pitot Tube Exhaust Flow Meter

Why Choose PTFM-ONE-DT

Expanded Flow Range – Seamlessly switches between dual tubes to handle flow rates from 0.3 to 14.5 m³/min.
High-Frequency Flow Capture – 1 kHz transducers detect rapid pressure swings including reverse flows for true real-time fidelity.
Extreme Environment Robustness – Rated for exhaust temperatures up to 900 °C, supporting diverse test cell applications.
Flexible Connectivity & Altitude Options – Includes LAN and analog outputs, with pressure configurations supporting altitudes up to 4,500 m.

Key Advantages of PTFM-ONE-DT

Wide Dynamic Flow Coverage

0.3–14.5 m³/min

Handles varying engine conditions by automatically switching pitot tubes for reliable flow capture.

Fast & Accurate Flow Detection

1 kHz Sampling

Captures fine pulsations and negative flow events with clarity that slower systems would miss.

High-Temperature Durability

Up to 900 °C

Built to endure harsh exhaust environments while maintaining performance.

Versatile Output & Altitude Configuration

LAN + Analog, Up to 4500 m

Adaptable interfaces and pressure calibration support testing in diverse geographic and rig conditions.

Technical Specifications of PTFM-ONE-DT

System Configuration (Standard unit)	Dual Pitot Tube Setup (1 for low end & 1 for high end) System Controller
Tube Diameter & Measuring Range	The System comes with a B & C Tube in parallel with each other and a valve in between. B-type: f42.7 / f39.7 mm (0.15 m³/min to 4.5 m³/min) C-type: f60.5 / f56.5 mm (0.3 m³/min to 10 m³/min) Both B and C Tubes work in parallel with each other, providing a Max Flow of 14.5 m³/min.
Linearity	Either of the following: Within ±2.0 % of full scale Intercept: \|a0\| ≤ 1.0 % of full scale Slope: 0.98 ≤ a1 ≤ 1.02 Standard estimated error: SEE ≤ 2.0% of full scale Coefficient of determination: r2 ≥ 0.990
Flow Rate Accuracy	Within ±1 % of full scale or within ±1.5 % of readings (whichever larger) (at flow rate of 20 % of full scale)
Exhaust Pressure Sensor Range	-1.25 – 7.5 kPa
Atmospheric Pressure Sensor Range	Standard configuration: 80 to 110 kPa Optional configuration: 60 to 110 kPa
Environment for use	Temperature: -20ºC to +40ºC Humidity: Under 80% as relative humidity Altitude: 0m to 2100m above sea level *option for up-to 4500m
Approved Standards	CE, FCC, RoHS compliant
Dimensions	923 x 480 x 1204 H x W x D (mm)
Mass	115KG Approx.