CEMS-in-a-box
NDIR-gas analyzer for CEMS
CEMS-in-a-box
This all-in-one solution represents a compact and cost efficient gas analyzing system for Continuous Emission Monitoring (CEMS).
It can be used for various operation units to monitor the emission limits required by authorities and to optimize process parameters.
CEMS-in-a-box includes a high precision NDIR analyzer, which operates in change-flow-mode (CFM) to ensure a stable zero point. Furthermore, this system includes an electric gas cooler, an autocalibration unit, a purge unit, a HMI and various I/O functions.
Measurement principle:
SO2, NOX, CO and CO2 are measured by a nondispersive infrared (NDIR) analyzer. As sample gas enters the analyzer, it gets filtered and precisely cooled down to 4°C, which minimizes humidity influences. Additional pressure regulation as well as temperature regulation allow measurements with highest accuracy. A Control Valve Unit enables a change-flow-mode technique to ensure a long-term stability.
Furthermore, an O2-sensor, a CLDmini, a purge unit, a housing cooler and an autocalibration unit can be integrated if necessary.
size: 687 x 860 x 360 mm
Flow Diagram
- Key Features
- Simultaneous measurement of CO, NOX, SO2, CO2 and O2
- For boilers, furnaces, rotary kilns, SRUs, coke ovens and others
- Integrated gas pretreatment system
- Long-term stability by NDIR operating in CFM
- Installation close to stack/boiler
- Main Features
- Suitable for a variety of applications due to different measurement ranges.
- An integrated housing cooler unit ensures a stable air conditioning inside the box.
- Includes compact gas cooler, pumps, filters, valves
- Change-flow-mode: The Control Valve Unit is managing the automated
Zerogas and Spangas calibration, the purging function and ensures a stable pressure regulation. - An integrated HMI is managing the analog and digital communication as well as the 7" Touch- Panel for operation purposes.
- Measuring Range
max. range min. range optional Measuring range SO2 0 - 5.000 ppm 0 - 250 ppm 0 - 50 ppm NO 0 - 5.000 ppm 0 - 450 ppm 0 - 100 ppm CO 0 - 5.000 ppm 0 - 200 ppm 0 - 100 ppm CO2 0 - 20 % O2 0 - 25 % - Specifications
Specifications Linearity ≤ ± 1 % of full scale Zero drift ≤± 1 % of full scale per week Span drift ≤± 1 % of full scale per week Repeatability ≤± 0,5 % of full scale Response time < 180 s Ambient conditions Temperature: -5 to 35 ̊C (50 ̊C optional), Humidity: < 90%, shelter or roof required, no direct sun exposure Sample gas pre-conditioning required, heated sample line, filtered Gas flow 3 l/min(1), warning message for incorrect flow values Power supply 90 - 264 V AC/50 - 60 Hz, internal safety management, max. power consumption 380 W Dimensions 860 x 687 x 360 mm Assembly Outdoor wall installation under shelter or installation in control room Analog output Current output 4 - 20 mA for each measured gas Analog input External sensors (e.g. H2O, pressure) can be connected Digital output Analyzer status, warnings, purging Digital input Remote calibrations Communication Modbus TCP/IP Weight 40 kg Gas connections 1 x zero gas, 5 x span gas, sample gas, exhaust, drain, compressed air Zero point correction Automatically done by change-flow-mode Interface Integrated HMI with 7" LCD (capacitive touch) Options Probe purging unit, autocalibration unit, O2- sensor, housing cooler, CLDmini 1 can be adjusted if necessary - Download
Broschure 2020
- Key Features
- Simultaneous measurement of CO, NOX, SO2, CO2 and O2
- For boilers, furnaces, rotary kilns, SRUs, coke ovens and others
- Integrated gas pretreatment system
- Long-term stability by NDIR operating in CFM
- Installation close to stack/boiler
- Main Features
- Suitable for a variety of applications due to different measurement ranges.
- An integrated housing cooler unit ensures a stable air conditioning inside the box.
- Includes compact gas cooler, pumps, filters, valves
- Change-flow-mode: The Control Valve Unit is managing the automated
Zerogas and Spangas calibration, the purging function and ensures a stable pressure regulation. - An integrated HMI is managing the analog and digital communication as well as the 7" Touch- Panel for operation purposes.
- Download
Broschure 2020
Measuring Range
| max. range | min. range | optional | |
|---|---|---|---|
| Measuring range | |||
| SO2 | 0 – 5.000 ppm | 0 – 250 ppm | 0 – 50 ppm |
| NO | 0 – 5.000 ppm | 0 – 450 ppm | 0 – 100 ppm |
| CO | 0 – 5.000 ppm | 0 – 200 ppm | 0 – 100 ppm |
| CO2 | 0 – 20 % | ||
| O2 | 0 – 25 % | ||
Specifications
| Specifications | |
|---|---|
| Linearity | ≤ ± 1 % of full scale |
| Zero drift | ≤± 1 % of full scale per week |
| Span drift | ≤± 1 % of full scale per week |
| Repeatability | ≤± 0,5 % of full scale |
| Response time | < 180 s |
| Ambient conditions | Temperature: -5 to 35 ̊C (50 ̊C optional), Humidity: < 90%, shelter or roof required, no direct sun exposure |
| Sample gas | pre-conditioning required, heated sample line, filtered |
| Gas flow | 3 l/min(1), warning message for incorrect flow values |
| Power supply | 90 – 264 V AC/50 – 60 Hz, internal safety management, max. power consumption 380 W |
| Dimensions | 860 x 687 x 360 mm |
| Assembly | Outdoor wall installation under shelter or installation in control room |
| Analog output | Current output 4 – 20 mA for each measured gas |
| Analog input | External sensors (e.g. H2O, pressure) can be connected |
| Digital output | Analyzer status, warnings, purging |
| Digital input | Remote calibrations |
| Communication | Modbus TCP/IP |
| Weight | 40 kg |
| Gas connections | 1 x zero gas, 5 x span gas, sample gas, exhaust, drain, compressed air |
| Zero point correction | Automatically done by change-flow-mode |
| Interface | Integrated HMI with 7″ LCD (capacitive touch) |
| Options | Probe purging unit, autocalibration unit, O2– sensor, housing cooler, CLDmini |
| 1 can be adjusted if necessary | |
