
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.
