Thermo Scientific™

Continuous Emissions Monitoring System for Total Reduced Sulfur

Catalog number: CEMSTRS
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Thermo Scientific™

Continuous Emissions Monitoring System for Total Reduced Sulfur

Catalog number: CEMSTRS
Have Questions?

Measure total reduced sulfur (TRS) using field-proven, pulsed fluorescence technology with Thermo Scientific™ Continuous Emissions Monitoring Systems (CEMS). 
Designed to meet the needs of the pulp and paper industry in complying with the regulatory requirements of 40 CFR part 60 as set forth by the U.S. EPA.

 
Catalog Number
CEMSTRS
Unit Size
Each
Description
Continuous Emissions Monitoring System for Total Reduced Sulfur
Price (USD)
Full specifications
Flow Rate0.5 L/min.
Inputs16 Digital Inputs (Standard), 8 0 to 10 VDC Analog Inputs (Optional)
Linearity1% full scale
Product TypeContinuous Emissions Monitoring System for Total Reduced Sulfur
Response Time320 sec. (300 sec. average time)
Span Drift±0.5%
Temperature (English) Operating59°F to 95°F
Temperature (Metric) Operating15°C to 35°C
Zero Noise0.25 ppb RMS (300 sec. averaging time)
Air Supply Requirements5 liters/minute, 30-45psi, oil free, SO2-free, -20°F dewpoint
AlarmsElectromechanical, Form A, 0.5A @ 120/240VAC
Certifications/ComplianceDesigned to meet U.S. EPA 40CFR Part 60
Depth (English)6 in.
Depth (Metric)15.2 cm
DescriptionContinuous Emissions Monitoring System for Total Reduced Sulfur
Detection Limit0.5 ppb (300 second average)
Extended Range0-0.05, 1, 2, 5, 10, 20, 50 and 100ppm
Filter Type0.1-micron glass fiber element, temperature controlled at 300°F
Height (English)20 in.
Height (Metric)50.8 cm
Measurement Range0-0.05 to 100ppm
OutputsSelectable voltage, RS232/RS485, TCP/IP, 10 status relays, and power fail Indication (standard) 0-20 or 4-20 mA isolated current output (optional)
Precision1% of reading or 1 ppb
Sensing Element TypeType K Thermocouple
Width (English)5 in.
Width (Metric)12.7 cm
Zero DriftLess than 1ppb
Unit SizeEach
Showing 1 of 1
Catalog NumberSpecificationsUnit SizeDescriptionPrice (USD)
CEMSTRSFull specifications
EachContinuous Emissions Monitoring System for Total Reduced SulfurRequest A Quote
Flow Rate0.5 L/min.
Inputs16 Digital Inputs (Standard), 8 0 to 10 VDC Analog Inputs (Optional)
Linearity1% full scale
Product TypeContinuous Emissions Monitoring System for Total Reduced Sulfur
Response Time320 sec. (300 sec. average time)
Span Drift±0.5%
Temperature (English) Operating59°F to 95°F
Temperature (Metric) Operating15°C to 35°C
Zero Noise0.25 ppb RMS (300 sec. averaging time)
Air Supply Requirements5 liters/minute, 30-45psi, oil free, SO2-free, -20°F dewpoint
AlarmsElectromechanical, Form A, 0.5A @ 120/240VAC
Certifications/ComplianceDesigned to meet U.S. EPA 40CFR Part 60
Depth (English)6 in.
Depth (Metric)15.2 cm
DescriptionContinuous Emissions Monitoring System for Total Reduced Sulfur
Detection Limit0.5 ppb (300 second average)
Extended Range0-0.05, 1, 2, 5, 10, 20, 50 and 100ppm
Filter Type0.1-micron glass fiber element, temperature controlled at 300°F
Height (English)20 in.
Height (Metric)50.8 cm
Measurement Range0-0.05 to 100ppm
OutputsSelectable voltage, RS232/RS485, TCP/IP, 10 status relays, and power fail Indication (standard) 0-20 or 4-20 mA isolated current output (optional)
Precision1% of reading or 1 ppb
Sensing Element TypeType K Thermocouple
Width (English)5 in.
Width (Metric)12.7 cm
Zero DriftLess than 1ppb
Unit SizeEach
Showing 1 of 1

In order to measure TRS in accordance with the federal regulations, the sample must be measured on a dry basis and be corrected to a fixed Oxygen (O2) content. This is accomplished by extracting the sample from the process using the Thermo Scientific PRO902C Low-Flow Dilution Probe.

First, the sample is passed through a water removal device to provide a dry sample. The oxygen content is measured and the sample is diluted to an appropriate level, depending on the site conditions.

The diluted sample is sent through a sample line to the instrument cabinet and passes through a selective scrubber where Sulfur Dioxide (SO2) is removed and TRS is allowed to pass. Next, the sample is routed to a thermal oxidizer where the TRS compounds react with O2 under high temperature, and is then sent on to the 43iQ SO2 analyzer..

Key Features:

  • Designed to meet U.S. EPA 40 CFR Part 60 requirements
  • Dry-basis measurement
  • Reliable pulsed-fluorescence technology
  • Corrective oxygen measurement

Recommended for:

Pulp and Paper Mills

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