Portable Emissions Measurement Systems

PEMS Provides You Portable Emissions Testing for On-road Vehicles and Off-road Equipment. 

We have extensive experience providing engine, vehicle, performance, and emissions testing. Portable Emissions Measurement Systems (PEMS) takes your testing on the road, providing a portable testing experience that complements our existing in-use or in-lab emissions testing capabilities. TRP’s team of industry experts will provide program solutions by working to understand your objectives, give insights into industry trends and develop a custom plan to incorporate PEMS technology into your upcoming projects. Download a brochure.

PEMS can be used for in-use testing of new and older vehicles or machinery to:

  • Validate engine or after-treatment control and on-board diagnostic (OBD) strategies
  • Measure compliance against NTE limits
  • Detect “emission defeat” strategies
  • And capture real world driving cycles for playback in the laboratory.

PEMS Services

  • Installation & set-up
  • Unit calibration & maintenance
  • Vehicle procurement & certified driver
  • Route planning & drive cycle
  • Data collection, download & validation
  • Engineering support & evaluation
  • Part procurement & fabrication
  • Field service & technical support

System Capabilities

  • In-vehicle or in-lab use
  • GPS tracking advanced data acquisition technology
  • Photo-acoustic real time soot measurement & gravimetric PM sampling capability
  • Compliance with 40 CFR 1065 including in-use testing for heavy-duty on road and off road equipment
  • Measurement of THC, NO, NO2, CO, CO2, O2, and PN
  • Operating temperatures from -30ºC to +45ºC
  • Sensors for ambient temperature, humidity & atmospheric pressure
  • OBD/CAN interface
  • Exhaust flow measurement
  • Testing a wide range of on road vehicles and off road equipment

Installation

  • Few vehicle modifications may be required
  • Compatible with a wide range of vehicle types
  • Small size & minimal weight
  • In-vehicle, trailer hitch or custom mount

To discuss your PEMS testing requirements contact us today.