HI-RESTM Series 6100 Micro Diluter

HI-RES TM Series 6100 Micro Diluter
Compact Exhaust Dilution System
for Integration with the TEOM ® Series 1105 Diesel Particulate Monitor
Sep 05

Capabilities
The High-performance Integrated Raw Exhaust Sampler (HI-RES TM unit) is designed
to complement the TEOM ® Series 1105 Diesel Particulate Monitor to provide a
definitive approach for sampling and quantifying exhaust particulate matter. The
compact device offers a convenient means of sampling and diluting hot and moist
exhaust streams containing particles. The operation of the dilution tunnel is
automatically controlled through the operating software of the TEOM monitor.
Dilution of the sample stream takes place in two stages to allow users to sample
from high temperature, high pressure sources without transmitting those thermodynamic
conditions to downstream particle measurement and sampling devices.
Users can configure the dilution system in different ways to attain the desired
dilution ratio, temperatures and residence time.
Other devices in addition to the TEOM monitor, such as filter holders or particle
counting devices, can simultaneously sample the diluted exhaust stream from the
HI-RES System. The TEOM monitor provides gravimetric-equivalent, filter-based
mass concentration readings in real time, while other approaches can provide
additional information concerning the particles emitted by a source.
Rack-Mountable Components of HI-RES System
Combined with TEOM Series 1105 Monitor.
Applications
Users can deploy the HI-RES unit for a variety of particle-related measurements
of mobile and stationary sources. These include the following:
Mobile sources...
• Sampling of particulate matter from before and after catalyst or diesel
particulate filter treatment devices to determine particle removal efficiencies.
• Emissions calibrations for engine mapping and component evaluations.
• Emission test cycles.
• Fuel and lubricant studies.
Stationary sources...
• USEPA Method 5 condensables measurements.
• PM-10 and PM-2.5 USEPA test methods similar to 201A.
• USEPA conditional test method CTM 039 for PM-2.5 stationary sources.

System Configuration
The HI-RES System builds upon the TEOM Series 1105 Diesel Particulate Monitor, and
integrates into the data handling and user interfaces of the mass monitoring device. In
addition to the dilution tunnel, the HI-RES device is composed of a control unit, valve
unit, and pressure control module (front cover). The control and valve units are rack
mountable, and have their electric and pneumatic connections on their back panels.
The dilution system samples raw exhaust through a multi-hole probe (see photo) that is
directly connected to the dilution tunnel, where the first-stage radial inflow diluter is
followed by an ejection diluter. A flow splitter downstream of the ejector diluter provides
up to 150 l/min of diluted air through multiple outlets (see photos).
The control unit monitors temperatures and pressures, and contains a menu-driven user
interface for calibrating and controlling the dilution valves.
The valve unit houses the valves that control the dilution air supplies to the first- and
second-stage diluters, as well as the cooling air or water supply for the first-stage jacket.
The pressure control module is located between the external dilution air supply and valve
unit, and acts upon the incoming dilution air stream to maintain the proper pressure
conditions for the HI-RES System.
Detail of Exit Ports on Flow Splitter.
HI-RES System, with Probe at Left and
Exit Flow Splitter at Right.
HI-RES Dilution System Attached to TEOM Monitor
and Filter Holder, with Residence Chamber Installed
(Top) and Without Residence Chamber (Left).
Multi-Hole Probe of HI-RES System
Inserted into Raw Exhaust Channel.
Main Sample, Dilution and Cooling
flows in the HI-RES System.
Advanced Dilution Technology
Sample stream dilution takes place in two stages to maximize the conditioning
effect and consistency of the diluted sample stream. To lengthen
the mixing duration, a residence chamber (see photo) can be installed
between the second-stage injection diluter and flow splitter, or between
the first and second dilution stages.
The dilution ratio set points of the primary and secondary dilution stages
are independently selectable by the user.
The first dilution stage employs a radial inflow design, a well accepted
dilution geometry whose performance has been validated in aerosol
studies. The stage is jacketed, permitting the use of a cooled air or
chilled water stream to reduce the sample temperature in high temperature
applications.
The second dilution stage is an ejector diluter, in which pressurized air
acts as a pump and returns the sample to ambient pressure.

User Interface
The operating software for the HI-RES System is incorporated in
the Windows-based operating program of the TEOM Series 1105
Diesel Particulate Monitor. This provides seamless operating,
control and data storage capability for both the dilution unit and
TEOM monitor. A dedicated window within the program contains
the calibration, set points, alarms, and control functions of the
HI-RES dilution unit.
The user selects the desired dilution ratio through the software
interface. In response, the system automatically determines the
appropriate valve and dilution air flow settings to achieve the
target dilution ratio.
Integrated with the TEOM monitor, the system provides full TCP/
IP control of major functions and data reporting. Start, stop,
flush, and other functions can be controlled remotely through a
test cell network. Remote computers connected to the network
can also record total mass, mass concentration and mass rate
information, corrected and uncorrected for the dilution ratio.
The software contains calibration wizards for conducting audits
of the system temperatures, flows and dilution ratios. The user
can set alarm thresholds for temperatures and pressures, and for
indicators that the system requires routine maintenance.
Back Panel Electrical and Pneumatic Connectors on the Control and Valve
Units.
TEOM/HI-RES Software with Options Window for
Dilution Tunnel Operating Parameters.
Main Screen of TEOM/HI-RES Windows-Based
Control Software.
Environmental Instruments Division 26 Tech Valley Drive, East Greenbush, NY 12061, USA
Air Quality Instruments Phone (518)452-0065 • Fax (518)452-0067
rp Products
www.thermo.com/air
TEOM is a registered trademark of Thermo Electron Corporation.
HI-RES is a trademark of Thermo.