M6900 NDIR Gas Analyzer
M6900 gas analyzer is capable of measuring the concentration of NO, SO2, CO2, CO and O2 components in sample gas. NO, SO2, CO2, CO are measured by non-dispersion infrared method (NDIR), while O2 is measured by electrochemical cell sensor or paramagnetic. Through sample switching system, M6900 is capable of canceling drift in the zero point of the measurable component by NDIR.
Optimum use as an analyzer unit of a measurement system for combustion exhaust gas from refuse incinerators and boilers, or gas from various industrial furnaces.
Features
1. High sensitivity
Equipped with the newest upgraded mass flow sensor, capable of 0-50ppm measuring range with a newly designed measurement unit.
2. Excellent stability
Due to adoption of sample switching method (Excellent long term stability due to sample gas and reference gas flowed alternately to the measurement unit.), it is capable of canceling drift in the zero point of measurable component.
3. Extensive functions
Various optional functions are available such as auto calibration control, atmospheric pressure correction, high and low concentration alarms, remote range switch, and range identification signal, etc.
4. Easy maintenance
Single beam design simplifies maintenance and minimizes maintenance costs compared with double beam or similarly equipped GFC based system.
Equipped with the newest upgraded mass flow sensor, capable of 0-50ppm measuring range with a newly designed measurement unit.
2. Excellent stability
Due to adoption of sample switching method (Excellent long term stability due to sample gas and reference gas flowed alternately to the measurement unit.), it is capable of canceling drift in the zero point of measurable component.
3. Extensive functions
Various optional functions are available such as auto calibration control, atmospheric pressure correction, high and low concentration alarms, remote range switch, and range identification signal, etc.
4. Easy maintenance
Single beam design simplifies maintenance and minimizes maintenance costs compared with double beam or similarly equipped GFC based system.
Standard Specification
1. Principle of measurement: NO, SO2, CO2, CO;
Non-dispersion infrared-ray absorption method (NDIR method)
Single light source and single beams (single beam system)
2. Built-in O2 analyzer:
Electrochemical cell O2 sensor or Paramagnetic O2 unit
3. Measurable gas components and measuring range:
• Max. 5 components measurement including O2.
• Measuring range ratio max. 1:10 (except O2)
• Measuring ranges are changeable between the specified minimum and maximum range. Settable one range or two ranges (In measurement range, low range is called
first range, high range is called second range.)
4. Measured value indication: Digital indication in 4 digits (LCD panel with LED back light)
• Instantaneous value of each component
• Instantaneous value after O2 correction (only in NO, SO2, CO measurement with O2)
• Average value after O2 correction (only in NO, SO2, CO measurement with O2)
• O2 average value
5.Analog output signals:
4 to 20mA DC or 0 to 1V DC, isolated internally from circuit and ground. Output lines are non-isolated each other.
6.Power supply:
Voltage rating : 100V to 240V AC, 50Hz/60Hz
Power consumption: 110VA max.
7.Operation conditions:
Ambient temperature: -5˚C to 45˚C (40°C max. when 2 optical system at 200V AC power source)
Ambient humidity: 90% RH max., non-condensing
Dimensions (H × W × D): 133 x 483 x 382mm
Mass: 13 kg max.
Finish color: Front panel; Cool gray (PANTON 1C-F)
Enclosure: Steel casing, for indoor use
Non-dispersion infrared-ray absorption method (NDIR method)
Single light source and single beams (single beam system)
2. Built-in O2 analyzer:
Electrochemical cell O2 sensor or Paramagnetic O2 unit
3. Measurable gas components and measuring range:
• Max. 5 components measurement including O2.
• Measuring range ratio max. 1:10 (except O2)
• Measuring ranges are changeable between the specified minimum and maximum range. Settable one range or two ranges (In measurement range, low range is called
first range, high range is called second range.)
4. Measured value indication: Digital indication in 4 digits (LCD panel with LED back light)
• Instantaneous value of each component
• Instantaneous value after O2 correction (only in NO, SO2, CO measurement with O2)
• Average value after O2 correction (only in NO, SO2, CO measurement with O2)
• O2 average value
5.Analog output signals:
4 to 20mA DC or 0 to 1V DC, isolated internally from circuit and ground. Output lines are non-isolated each other.
6.Power supply:
Voltage rating : 100V to 240V AC, 50Hz/60Hz
Power consumption: 110VA max.
7.Operation conditions:
Ambient temperature: -5˚C to 45˚C (40°C max. when 2 optical system at 200V AC power source)
Ambient humidity: 90% RH max., non-condensing
Dimensions (H × W × D): 133 x 483 x 382mm
Mass: 13 kg max.
Finish color: Front panel; Cool gray (PANTON 1C-F)
Enclosure: Steel casing, for indoor use
Standard Functions
1. Output signal holding: Output signals are held unchanged during manual and auto calibrations by activation of holding (turning “ON” its setting). The
values held are those just before start calibration mode or setting value. Usage is selectable. Indication of instantaneous values will not be held.
2. Switch ranges: The switch ranges function is available in manual, auto, and remote modes. Only preset switch method is effective.
values held are those just before start calibration mode or setting value. Usage is selectable. Indication of instantaneous values will not be held.
2. Switch ranges: The switch ranges function is available in manual, auto, and remote modes. Only preset switch method is effective.
- Manual: Allows range to switch by key operation.
- Auto: Automatically switched from first range to second range when the measured value exceeds 90% FS of first range. Automatically switched from second range to first range when the measured value drops to 80% or less first range.
- Remote: Voltage contact input Optionally allows range to switch via an external signal when remote range switch input is received. When the contact input terminals for each component are input voltage, the first range is selected, and it is switched to the second range when the terminals are open.
Performance
Repeatability: ±0.5% of full scale
Linearity: ±1% of full scale, prior to atmospheric pressure correction (option)
Zero drift: ±0.5% of full scale/week (measurable component of NDIR)
±2.0% of full scale/week (O2 analyzer)
Span drift: ±2.0% of full scale/week
Response time (T90): 30 seconds or better. Response interval may be changed depending on timing of the switching gas by sample switching operation. (Td=5-20 seconds)
Interference from other gases: Sample switching design effectively minimizes interference. But it may occur depending on component gas and its concentration. Preprocessing can further decrease influence in this case.
Linearity: ±1% of full scale, prior to atmospheric pressure correction (option)
Zero drift: ±0.5% of full scale/week (measurable component of NDIR)
±2.0% of full scale/week (O2 analyzer)
Span drift: ±2.0% of full scale/week
Response time (T90): 30 seconds or better. Response interval may be changed depending on timing of the switching gas by sample switching operation. (Td=5-20 seconds)
Interference from other gases: Sample switching design effectively minimizes interference. But it may occur depending on component gas and its concentration. Preprocessing can further decrease influence in this case.
Requirements for Sample Gas
Flow rate: 1.0 ±0.2L / min
Temperature: 0 to 50˚C
Pressure: 10 kPa or less (Gas outlet side should be open to the atmospheric air.)
Dust: 100 µg/Nm3 or less in particle size of 0.3µm or smaller
Mist: Unallowable
Moisture: Less than 2°C saturation point. (Contain comparable sample gas and reference gas)
Corrosive component: 1 ppm or less
Standard gas for calibration:
- Zero gas : Dry N2
- Span gas : Each sample gas having concentration 90 to 100% of its measuring range (recommended).
Reference gas for sample switching:
- For sample gas dewpoint > 2°C sample switching reference gas is wet N2 or atmospheric air.
- For sample gas dewpoint < 2°C use dry N2 or dry air. (Do not contain the component to be measured more than 0.1% FS of the minimum measuring range. If CO2 meter is used, do not use the atmosphere/Dry air.)
Purge gas: When base gas is H2 and CO2 meter is under this condition that measuring range is 100ppm or less, Please purge the inside of the instrument.
EU Directive Compliance
LVD (2014/35/EU)
EN 61010-1
EN 62311
EMC (2014/30/EU)
EN 61326-1 (Table 2)
EN 55011 (Group 1 Class A)
EN 61000-3-2 (Class A)
EN 61000-3-3
EN 61326-2-3
RoHS (2011/65/EU)
EN 50581
Temperature: 0 to 50˚C
Pressure: 10 kPa or less (Gas outlet side should be open to the atmospheric air.)
Dust: 100 µg/Nm3 or less in particle size of 0.3µm or smaller
Mist: Unallowable
Moisture: Less than 2°C saturation point. (Contain comparable sample gas and reference gas)
Corrosive component: 1 ppm or less
Standard gas for calibration:
- Zero gas : Dry N2
- Span gas : Each sample gas having concentration 90 to 100% of its measuring range (recommended).
Reference gas for sample switching:
- For sample gas dewpoint > 2°C sample switching reference gas is wet N2 or atmospheric air.
- For sample gas dewpoint < 2°C use dry N2 or dry air. (Do not contain the component to be measured more than 0.1% FS of the minimum measuring range. If CO2 meter is used, do not use the atmosphere/Dry air.)
Purge gas: When base gas is H2 and CO2 meter is under this condition that measuring range is 100ppm or less, Please purge the inside of the instrument.
EU Directive Compliance
LVD (2014/35/EU)
EN 61010-1
EN 62311
EMC (2014/30/EU)
EN 61326-1 (Table 2)
EN 55011 (Group 1 Class A)
EN 61000-3-2 (Class A)
EN 61000-3-3
EN 61326-2-3
RoHS (2011/65/EU)
EN 50581