CEMFlow Compliance Stack Flow
Monitoring System
We offer a flexibile and expandable S-Type Pitot Tube gas flow monitoring system to help plants stay in compliance with their air emissions regulations
Constant Purge of Pitot Tubes
CEMFlow includes a constant low velocity purge through the pitot tubes. This prevents moisture interference and helps to prevent probe plugging problems.
Built-in Probe Check
CEMFlow has a built-in continuous check for probe plugging and an automatically initiated probe purge to clean the probe in the event of a blockage.
Onboard Primary Reference Manual Calibration Capability
The signal output is easily verified against standard EPA#2 methods via an onboard manometer. There is no need to ever send a system back to the factory for adjustment or re-calibration.
Low Installation and Initial Cost
The pitot sensor requires one sample port at one given level on the stack compared to other systems that require two sample ports at different levels. There are also no utilities necessary at the sample location.
Accurate Determination of Gas Flow Above 5 ft./sec.
This allows sources with high levels of static variation tobe monitored with a minimum of interference. Very hostile conditions can also be monitored without endangering the instrument package.
No Utilities at the Stack or Duct
Only the sensor is mounted on the stack or duct therefore CEMFlow can be operated in hazardous environments.
Fully Automated Calibration & Constant Purge
This offers completeunattended operation. Plugging is avoided by constant purging. In the event of a purge or calibration failure, an alarm is provided to notify an operator.
Robust In-Situ Sensors
Sensors are available in a wide range of desired materials designed to allow them to stand up to corrosion, high temperatures, and other hostile environments.
+99.99% Uptime
With no moving parts or electronics exposed to the elements up on the stack, CEMFlow offers unparalleled performance and reliability.
Ease of Maintenance & Low Cost
There are no blower assemblies or filters at the sample location. The unit may be serviced with nothing more than a test meter and lower-leveltechnical support. Pitot tube technology utilizes solenoids, a simple power supply, DP cell, commonly used pressure switches and regulators, manometer, and an easily interchangeable control unit –all relatively inexpensive.
Simple and User-Friendly yet Sophisticated Controller
Everyday functions can be accessed and performed without the need to reprogram the controller, including Purge Frequency, Calibration Time, and Calibration Frequency.
- Built-in RATA Function: easily turn off calibrations and purges during a RATA test.
- Password Protected Menus: prevents unauthorized changes in calibration times and durations.
- Built-in HELP Feature: allows an operator to view parameters without gaining access to change them.
- Wet Basis Calculations: the controller calculates the volumetric flow rate to standard conditions on a wet basis.
- External Calibration Control: calibrations can be controlled from an external source (i.e. PLC).
Meet Key Suppliers
ESC Spectrum partners with key Continuous Emissions Monitoring (CEM) and process control suppliers to ensure our customers have access to the right equipment for their facility’s application.
Case Studies
StackVision™ Case Study: Calumet Refinery
Learn how Calumet refinery used the StackVision DAS for flare monitoring and compliance with the Refinery Sector Rule (RSR).
StackVision™ Case Study: Pfizer Groton
Learn how the StackVision data acquisition system (DAS) helped Pfizer Groton comply with air regulations more efficiently.
StackVision™ Case Study: Delek-Tyler Refinery
Learn how the Delek-Tyler, TX refinery employed the StackVision Data Acquisition System to solve their complex needs and comply with RSR regulations.