CODEL

Monitoring Solutions
CEMS & Process Product Catalogue

ISO 9001:2008
Quality Certification

Monitoring Solutions www.codel.co.uk

40 Series Gas Analyser

In-situ low cost, low maintenance analyser for Measurements

continuous process and emissions monitoring CO, NOx, SO2, HCl, CH4, CO2 & H2O
providing accurate and reliable measurements

The GCEM40 Series can be configured with

different probe sizes to suit difficult applications

The GCEM40 series is the latest generation of CODEL’s world renowned in-situ
monitors. Our development, knowledge andpractical experience have been
utilised to produce this advanced technology gas analyser which gives
completeflexibility of use on process or emissions applications whilst
delivering superb accuracy and repeatability at a very competitive price.

The analyser uses a field proven in-situ 316 stainless steel probe
designed for the harshest stack conditions to measure directly in the flue
stream. The design of the probe enables accurate measurements to be made
even in very high dust level processes exceeding several gram/m3.
All models are fitted with a probe mounted temperature sensor. Pressure, CO2
and H2O can be measured as an additional option to provide fully normalised
data in mg/Nm3.

Single or Multi-species infrared absorption analyser

In-situ stainless steel probe measurement
Gas temperature and pressure sensors, on-board normalisation
Export of data to SCADA, DCS and Data Acquisition System
Analogue and serial outputs

Measurement Gases CO, NOx, SO2, HCl, CH4, CO2 & H2O
Certified Ranges 0-500ppm, 0-1000ppm for CO,NO & SO2 to EN15267
Operating Principle NDIR gas filter correlation
Response Time <200secs
Accuracy +/-2ppm or +/-2% of span
Resolution 1ppm
Probe Length 1m , 2m and 2.2m (NEW low weight 1m)
Ambient Temperature Range -20 to +50°C Certified, -20 to +55°C On request
DDU display 32-character alpha-numeric back lit LCD
Power Requirement 24V DC @ 15A
Analogue Ouput 5 x 4 to 20mA isolated, 500Ω load, fully configurable from keypad.
Logic Ouput 5 x volt-free SPCO contacts, 50V, 1A max, configurable as alarms
1 x volt-free SPCO contact, 50V, 1A max, for data valid
Serial Output RS485 modbus configured

www.codel.co.uk Page 1 Visit our website for full product brochures and specification
GCEM40E Extractive System

Extractive low cost, low maintenance devices for Measurements

continuous process and emissions monitoring. CO, NO, NO2, NOx, SO2, CH4, HCl, CO2 & H²O

The GCEM40E hot extractive multi-channel gas analyser is CODEL’s industry-

proven continuous emissions monitor for difficult applications. Designed
exclusively for use on a wide range of applications where the flue gas
temperature is abnormally high, low or saturated.

Three decades of development, knowledge and practical experience have been

utilised to produce this advanced technology gas analyser which gives complete
flexibility of use on process or emissions applications whilst delivering superb
accuracy and repeatability at a competitive price.

The GCEM40E analyser is capable of measuring a range of CO, NO, NO2, NOx,
SO2, CH4, HCl, N2O, CO2, H2O and O2 simultaneously and with integral
temperature and pressure sensors can compute fully normalised data directly
in mg/Nm3.

Single or Multi-species infrared absorption analyser

Accurate, reliable and low maintenance technology
Extractive System With Zero and span calibration using audit gas
Gas temperature and pressure sensors
Analogue and serial outputs
Maximum 3 gases from: CO, NO, NO2, NOx, SO2, CH4 plus gas temperature
Gas Species Options
Plus optional : CO2, H2O, pressure for data normalisation
Measuring units ppm, mg/Nm³, mg/m³ , %
Response Time Less than 200 Seconds (T90)- MCERTS Specification
Calibration Automatic and manual zero/span verification
Gas Species CO, NO, NO2, NOx, SO2, HCl, CH4, N2O CO2, H2O
Max Measuring Range 0 - 6000 ppm, higher ranges available on request 0 - 25%
Accuracy +/- 2ppm or 2% of span 0.5% or 2% of span
Resolution +/- 1ppm 0.1%
Zero & span drift +/- 2ppm or 2% of span per month 0.5% or 2% of span
Linearity +/- 2% of span 2% of span
Ambient Temperature -20°C to +50°C
4-20mA current outputs for each gas channel supplied, isolated, 500Ω load max, fully
Analogue outputs
configurable from software
up to 8 x volt-free SPCO contacts, 50V, 1A max, configurable as alarm contacts
Logic Outputs
1 x volt-free SPCO contact, 50V, 1A max, for data valid signal
Inputs 1 x 4-20mA for oxygen as standard (upto 8 optional)

www.codel.co.uk Page 2 Visit our website for full product brochures and specification
DCEM2100 Opacity/Dust Monitor

In-situ, low maintenance devices for continuous monitoring Measurements

of opacity/dust emissions.
Opacity / Dust

The DCEM2100 provide a continuous measurement of opacity or dust

concentration in flue gases by continuously measuring the transmissivity
of visible light across a process duct or stack.

Its dual-pass optical arrangement is based on twin transmissometers

measuring in opposing directions through the same section of the gas
stream, providing not only an accurate average of the dust loading, but
also providing a unique dynamic assessment of any misalignment errors
due to stack movement.

The measurement of opacity or particulate (dust) emissions from a process

stack by measuring changes in optical transmission is simple in concept,
but the monitor must be insensitive to any other factors that degrade the
optical transmission such as contamination of optical surfaces or gross
misalignment.

% opacity or dust density in mg/Nm3

Low certified range 0 - 0.1 Ext
Dual-pass, open-path transmissometer
Integral auto zero and span check
Dynamic misalignment check

Operating Principle Dual-pass transmissometer

Units % opacity, mg/m3, mg/Nm3 , extinction
Optical Path Length 0.5 to 15m, longer path lengths available on request
Accuracy +/- 0.2% opacity
Response Time 10 Seconds
Measuring Range Fully selectable in % opacity, mg/m3, mg/Nm3 , extinction
Certified Range 0 to 0.1 Ext (0 - 20% opacity or 0 - 10 mg/m3 at 5m)
Resolution 0.1% opacity
Ambient Temperature -20°C to +50°C
Analogue outputs 2 x 4-20mA current outputs as standard, fully configurable from keypad
Logic Outputs 2 x volt-free SPCO contacts, 50V, 1A max, configurable as alarm contacts
1 x volt-free SPCO contact, 50V, 1A max, for data valid signal
Logic Inputs 1 x volt free logic input for plant status or remote calibration initiation
Serial Data RS232/RS485 MODBUS protocol (Optional)

www.codel.co.uk Page 3 Visit our website for full product brochures and specification
VCEM5100 Flue Gas Flow Monitor

In-situ, low maintenance devices for continuous measurement Measurements

of hot gas flow
Flow

The VCEM 5100 represents the latest generation of CODEL’s unique flow
monitors. These systems measure the velocity of stack gases using a highly
accurate time of flight measurement that is derived from a cross
correlation analysis of the infra-red emissions of the turbulent gas.
Two robust infrared detectors are used for the prime sensing, mounted on
the stack or duct typically 1m apart in the direction of flow.

High efficiencyair curtains are fitted to considerably extend the time between
maintenance periods and window cleaning (typically 1 year).

The VCEM 5100 is a standalone unit which can be easily integrated into an
existing or proposed CEMS system. It includes a dedicated Data Dislpay Unit
for local data interrogation.

Non-contact infra-red sensing

No limit on upper gas temperature
Continuous measurement
No moving components
Suitable for hot and dirty gases

Operating Principle Infrared correlation

Units m/s, m3/s
For duct diameters 0.5 to 15m
Accuracy +/- 2% of measurement
Response Time Minimum 10 seconds
Measuring Range Fully selectable from 0-3 up to 0-50m/s
Certified Range 3 - 50 m/s
Resolution 0.1 m/s
Ambient Temperature -20°C to +50°C
Analogue outputs 2 x 4-20mA current outputs as standard, fully configurable from keypad
Logic Outputs 2 x volt-free SPCO contacts, 50V, 1A max, configurable as alarm contacts
1 x volt-free SPCO contact, 50V, 1A max, for data valid signal
Serial Data RS232/RS485 MODBUS protocol (Optional
Display 32 Character alpha-numeric back-lit LCD

www.codel.co.uk Page 4 Visit our website for full product brochures and specification
EnergyTech 201

Rugged & robust design developed for easy Measurements

installation. CO & O2

Proven unique sample port design with minimal

maintenance required.

Rapid and accurate results for safe operation of

coal handling systems

The early detection of coal fires in coal handling systems on coal fired power
stations is essential to prevent catastrophic damage to expensive plant and
serious injury to personnel. The most reliable and accurate method of detecting
coal fires or smouldering is to monitor the carbon monoxide levels within the
coal handling plant areas such as silos and mills and to detect
rapid increases in concentration.

The CODEL system samples the gas from the critical area through a steel
sintered filter mounted in the wall of the chamber. This removes the need for
intrusive sampling probes which are prone to wear and are expensive to
replace.

The filter is back flushed with compressed air at regular intervals to ensure an
uninterrupted flow of sample gas and to minimise maintenance.

Minimal maintenance requirements

Rapid, accurate results
for safe operation of coal handling systems
Analogue & digital- communication

Operating Principle Electro Chemical Cell

Span Fully selectable in the range 0-1000ppm (CO) 0-25% (02)
Zero and Span drift ± 2ppm or 2% of span
Accuracy ± 2ppm or ± - 2% of span, whichever is greatest
Response Time 30 Secs to T90
Linearity ± 2ppm or ± -2% of span whichever is greater
Repeatability ± 2ppm or ± -2% of span whichever is greater
Resolution 1ppm
Ambient Temperature -20°C to +50°C
Contact Outputs 1 x volt-free SPCO contact, 50V, 1A max, for data valid signal)
Analogue Outputs 2 x 4-20mA current outputs as standard, isolated, 500Ω load max, fully configurable
from keypad (additional outputs available, see optional items below)
Diagnostic Data RS485 port for Codel diagnostic use
Display 32 Character alpha-numeric back-lit LCD

www.codel.co.uk Page 5 Visit our website for full product brochures and specification
EnergyTech 301 - Dust Monitor

A low cost dust monitor using well-proven Measurements

technology providing accurate and rapid results. Dust

Being adaptable it can can be used on duct sizes

from 250mm to 5m making the EnergyTech 301 a
suitable sensor for a wide range of applications
where a dust measurement is required.

EnergyTech 301 continuous dust monitor uses the well-proven

tribo-electric sensor technology to directly measure mass particulate
concentration by sensing the frictional charge created when particles collide
with a conductor.

The advanced electronics of the EnergyTech 301 detect this signal and present
it to the operator via RS485 or 4-20mA directly out from the sensor head. The
EnergyTech 201 also features a built in display for viewing live sensor data as
well as for configuration and calibration. The measurement levels can be
corrected to mg/m3 via an integrated calibration function.

The tribo-electric technique is extreamly sensitive, capable of detecting dust

concentrations of less than 1mg/m3 in small ducts.

Direct sensing method; actual particulate concentration

Automated Online zero and span checking facility
Integrated calibration function for mg/m3 output
Minimal maintenance requirements

Operating Principle Tribo Electric

Operating Range 0.07 to 6500mg/m3 or 0 - 100%
Particle Size 0.1 to 100μm
Gain 0.5 to 1000
Resolution 0.01%
Response Time 1sec to 1hr (operator selectable)
Alarm Level Programmable by user
Probe Lengths 250, 500, 750 & 1000mm
Flue Gas Temperature 0°C to +200°C
Ambient Temperature -20°C to +55°C
Analogue Outputs 4-20mA opto-isolated
Alarm Outputs alarm relay 2.5A @ 24V
Digital Outputs RS485 Modbus Bi-Directional)
Display 32 Character alpha-numeric back-lit LCD)

www.codel.co.uk Page 6 Visit our website for full product brochures and specification
EnergyTech 401 - CO Monitor

low maintenance - only simple, infrequent Measurements

checks to windows are required CO

With no sampling system to maintain, CODEL cross-duct monitors are easy to

install and simple to operate – vital for plant where there may be little or
no technical support available.

The EnergyTech 401 analyser may be used as a complete stand alone monitor
or as part of an integrated emission monitoring, logging and reporting system.

The instrument is particularly suited to large/dirty processes. The EnergyTech

401 projects an infrared beam across the duct and through the flue gas to a
receiver unit. The light beam is tuned to a specific wavelength
where CO molecules absorb light energy. The more molecules there are in the
light beam the greater the absorption.

Highly efficient air purges for minimal lens contamination

Automatic on-line zero calibration using integral reference gas cell
Real-time normalisation to standard reference conditions
Data presentation in ppm, mg/m3 or mg/Nm3

Operating Principle Infrared Absorption

Operating Range 0 to 6000ppm
Accuracy +/-2% of measurement or +/-5ppm, whichever is the greater
Average 4 rolling averages selectable from 10 seconds to 30 days
Path Length 0.5 to 8m
Plant Status Intput isolated field contact
Flue Gas Temperature 0 to 650oC
Ambient Temperature -20°C to +70°C
Analogue Outputs 0/4-20mA isolated, 500Ω
Contact Outputs volt-free contact, 250V/10A
Data Valid Output volt-free contact, 250V/10A
Normalising Inputs 4-20mA serial inputs via keypad for oxygen, temperature & pressure

www.codel.co.uk Page 7 Visit our website for full product brochures and specification
EnergyTech 501 - Ambient Smoke & Dust Monitor

The EnergyTech 501 is a monitoring device for coal Measurements

handling, processing and storage applications. Dust
Smoke
The early detection of coal fires in coal handling,
processing and storing systems on coal fired power
stations is essential to prevent catastrophic damage
to expensive plant and serious injury to personnel.

The EnergyTech 501 Ambient Dust Monitor, is an essential part

of any application where ambient dust is present such as coal
handling, processing and storage. By monitoring the ambient
visibility of the handling processes the EnergyTech 501
provides an alarm output for use in containment control.

Fully configurable analogue and alarm outputs are exportable

to the plant data acquisition system to provide real-time
visibility data. This data is also exported via the RS 485 serial
port along with the temperature data. This link delivers
MODBUS RTU encoded data to a SCADA system located
in the plant control centre and/or a local display module.

In addition, the IP65 rated enclosure are coated to resist attack from harsh and
aggressive atmospheres.

Analogue & digital - communication to DCS and SCADA systems

High resolution measurement
Minimal maintenance requirements
Available in 316 Stainless Steel

Operating Principle Visibility

Measurement Range (Typical) 0 - 0.015m-1
Measuring units K factor(M-1) or metres
Accuracy 0.5 to 1000
Resolution +/- 0.0002 m-1
Averaging Time From 10 seconds to 2 minutes
Ambient Temperature Range -20°C to +50°C
Measurement Technique Transmissometry (de Beer Lambert Law)
Analogue outputs 2 x 4-20mA isolated current output, 500Ω maximum load, fully configurable
Relay Outputs 1 x volt-free SPCO contacts, 50V, 1A maximum load, configurable as alarm contacts
Analogue Outputs 4-20mA opto-isolated
Communications Port RS485 - Modbus RTU

www.codel.co.uk Page 8 Visit our website for full product brochures and specification
 Distributor
CODEL International LTD Tel : +44 (0)1629 814351
Station Building Fax : +44 (0)1629 566307
Station Road Web : www.codel.co.uk
Bakewell email : Sales@codel.co.uk
Derbyshire
DE45 1GE

Monitoring Solutions www.codel.co.uk

Doc i/d : 100310 Issue : A Rev : 3 Date : 01/01/2017 © 2010 CODEL International Ltd. We reserve the right to modify designs without prior notice