PTFM-ONE-DT

Dual Pitot Tube Flow Meter

The Dual Pitot Tube Flow Meter, PTFM-ONE DT is a standalone interface for measuring exhaust gas flow rate of combustion engines. The system uses the tried-and-tested pitot tube principle with high-frequency transducers, with a sampling rate of 1kHz to accurately measure highly pulsating exhaust flows. This rapid capture rate ensures that any pulsations or exotic behaviour caused by the engine is measured, and the unique design of the PTFM-ONE DT means reverse flows can be calculated, with the same guarantee of sensitivity.

The interface can run standalone with a laptop, or seamlessly integrated to run alongside a Test Automation System.

Manufacturing Company: HORIBA UK Limited
900°C Exhaust Gas LimitAllows the freedom to test engines under extreme conditions without worrying if the
flow meter can handle those temperatures
-1.25kPa to +7.5kPa
Sensor Range
Shows both positive flow & negative flow in the tailpipe. Also, HORIBA capped the
positive pressure at +7.5kPa to ensure we cause as little backpressure on your
engine as possible
Dual Tube SystemThis is the patented setup of 2 pitot tubes and a valve to switch automatically to
keep the system measuring with it best possible accuracy range. It uses the
smaller tube for flows below 4.5 m3/min and both tubes if flows peak above the
smaller tubes flow limit up to 14.5m3/min.
1Khz High Speed TransducersHaving fast sampling of the pressure changes in the tailpipe allow for a rapid visual
representation of the spikes and negative pulses that happen with a combustion
engine. Lower speed sampling would miss these spikes and negatives giving you
an inaccurate representation of what is happening inside the tailpipe.
Temperature CompensationThe PTFM-ONE automatically compensates to 20°C when testing so there is no
need to warm up.
Multiple Communication
Options
The PTFM-ONE has 2 connection options. LAN for AK connections to Automation
systems or the PTFM Host programme & Analogue out (0-10V with 4 configurable
channels available)
2 Options of
Absolute Pressure Sensors
The PTFM-ONE can be purchased in 2 absolute pressure ranges supporting testing
from sea level to a) 2100m or b) 4500m.
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 AccuracyWithin ±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 StandardsCE, FCC, RoHS compliant
Dimensions923 x 480 x 1204 H x W x D (mm)
Mass115KG Approx.

 

Request for Information

Do you have any questions or requests? Use this form to contact our specialists. * These fields are mandatory.

Related products

CVS-ONE
More CVS-ONE

Constant Volume Sampler

EXFM-ONE
More EXFM-ONE

Ultrasonic Exhaust Flow Meter

FTX-ONE
More FTX-ONE

FTIR Exhaust Gas Analyzer

MDLT-ONE
More MDLT-ONE

Micro Dilution Tunnel

MEXA-1170HCLD
More MEXA-1170HCLD

Heated Type NOx Analyzer

MEXA-1170HFID
More MEXA-1170HFID

Heated Type THC Analyzer

MEXA-1170SX
More MEXA-1170SX

Motor Exhaust Gas Sulfur Analyzer

MEXA-1300R
More MEXA-1300R

Motor Exhaust Gas Analyzer

MEXA-2000SPCS series
More MEXA-2000SPCS series

Solid Particle Counting System

MEXA-584L
More MEXA-584L

Automotive Emission Analyzer

MEXA-730λ
More MEXA-730λ

Air-to-fuel Ratio Analyzer

MEXA-ONE
More MEXA-ONE

Motor Exhaust Gas Analyzer

MEXA-ONE-FT
More MEXA-ONE-FT

FTIR Motor Exhaust Gas Analyzer

MEXA-ONE-QL-NX
More MEXA-ONE-QL-NX

Laser Spectroscopic Motor Exhaust Gas Analyzer

OBS-ONE GS Unit
More OBS-ONE GS Unit

On-board Emissions Measurement System

OBS-ONE PM unit
More OBS-ONE PM unit

On-board Emissions Measurement System

OBS-ONE PN Unit
More OBS-ONE PN Unit

On-board Emissions Measurement System

PTFM-1000V2
More PTFM-1000V2

Pitot Tube Flow Meter

CRITERION D500
More CRITERION D500

Pressure Insensitive Mass Flow Module

CS-600F
More CS-600F

Fiber Optic Type Chemical Concentration Monitor

CS-620F
More CS-620F

Optical Fiber Type Hot Phosphoric Acid Concentration Monitor

CS-900
More CS-900

Non-Contact Chemical Concentration Monitor

CVS-ONE
More CVS-ONE

Constant Volume Sampler

EXFM-ONE
More EXFM-ONE

Ultrasonic Exhaust Flow Meter

FES-310L
More FES-310L

Sanitary Conductivity Sensor (Flow Through type)

FS-01FC-SL Series
More FS-01FC-SL Series

Sanitary Conductivity Sensor (Flow Through type) for Low Concentrations

FS-3000
More FS-3000

Thermal Flow Splitter

HC-200F (Four-Wire Analyzer)
More HC-200F (Four-Wire Analyzer)

Field-installation Type Simplified Fluoride Ion Concentration Meter(Four-Wire Transmission)

HC-200NH
More HC-200NH

Ammonia Nitrogen Meter

HC-300F
More HC-300F

Industrial simplified fluoride ion concentration meter

HD-200
More HD-200

Field-installation Type Dissolved Oxygen Meter (Four-Wire Transmission, Membrane Type)

HD-200FL
More HD-200FL

Industrial dissolved oxygen analyzer (Four-Wire Analyzer)

HD-300
More HD-300

Industrial dissolved oxygen analyzer (Two-Wire Transmitter)

HD-480
More HD-480

Industrial dissolved oxygen analyzer (The Slim48 series)

HE-200C
More HE-200C

Industrial electric conductivity meter (Four-Wire Analyzer)

HE-200H (Four-Wire Analyzer)
More HE-200H (Four-Wire Analyzer)

Industrial electric conductivity meter

HE-200R
More HE-200R

Industrial electric resistivity meter (Four-Wire Analyzer)

HE-300C
More HE-300C

Industrial electric conductivity meter (Two-Wire Transmitter)

HE-300R
More HE-300R

Industrial electric resistivity meter (Two-Wire Transmitter)

HE-480C
More HE-480C

Industrial conductivity meter (low concentration type)

HE-480C-GC
More HE-480C-GC

Carbon Sensor Conductivity Meter (Low concentration type)

HE-480H
More HE-480H

Industrial conductivity meter (high concentration type)

HE-480R
More HE-480R

Industrial resistivity meter

HE-480R(W)
More HE-480R(W)

Industrial resistivity meter

HE-960CA
More HE-960CA

Citric Acid Monitor

HE-960CW
More HE-960CW

2-channel Sanitary Conductivity Meter (Low Concentration type)

HE-960H-TM
More HE-960H-TM

Wide range TMAH Concentration Monitor

HE-960H-TM-S
More HE-960H-TM-S

High Precision TMAH Concentration Monitor

HE-960HC
More HE-960HC

Carbon Sensor Conductivity Meter (High concentration type)

CRITERION D500
More CRITERION D500

Pressure Insensitive Mass Flow Module

XF-100 Series
More XF-100 Series

Digital Liquid Mass Flow Meters