MAC155 Moisture Analyzer

For
CONTINUOUS STACK MONITORING
With
BUILT IN TWO POINT CALIBRATION

• Measure % Moisture By Volume In Exhaust Gasses At Temperatures up to 1200°F
  Optional to 2400°F
  
  
• Two Models Available
  MAC155-LT covers 3% to 15% or 6% to 30% ranges (user selectable)
  MAC155-HT covers 3% to 15%, 6% to 30%, 9% to 45%, or 12 % to 60% ranges (user selectable)
  
  
• NEMA 4X Waterproof Design
  Suitable for outdoor installation
  
  
• Contains Built In Equipment Allowing Daily 2 Point Calibration Check
  Sensor is flooded with an internally generated reference gas of specific moisture levels
  
  
• Can Be Re-Calibrated In the Field Using Internal Calibrator
  
  
• System Calibration
  Sensor signal substitution can be externally initiated to generate an ouput signal 50% of full output.
  From the MAC155 Controller, 3 different output signals can be generated.
  Provides a method of checking total system includingdata aquisition equipment.
  
  
• Patented Measurement Process
  
  
• In Situ Measurement
  Mounts directly to stacks or ducts
  
  
• 0-20mA or 4-20mA Signal Output User selectable
  Self powered or loop powered (jumper selectable)
  
  
• Filter Blow Back Option
  Allows automatic filter cleaning (requires 10 psi clean dry air)
  
  
• Case Heater Option
  Extend ambient temperature rating to -40°F
  
  

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• The MAC 155 In Situ Moisture Analyzer is designed to continuously monitor emission stack gases.
  

• It is designed to meet EPA and local regulatory requirements for stack gas moisture measurements.

  
  

• The patented solid state design has been proven in hundreds of industrial process control applications.
  

• The moisture sensor is extremely rugged and requires no chemicals, compressed air, optics or mirrors.
  

• The % moisture by volume is measured using a proprietary high temperature capacitive sensor that responds

  to water vapor pressure in the presence of other gasses.
  

• The MAC155 Moisture Analyzer is provided with automatic two point calibration check at user selectable moisture levels.  The on board calibration system can challenge the sensor with a controlled water vapor sample.  An internal tank holds enough water to generate vapor samples for one year of daily calibration checks.
  

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SPECIFICATIONS

Measurement Range

• (MAC155-LT)
  • 3% to 15% or 6% to 30% water vapor by volume (user selectable)
• (MAC155-HT)
  • 3% to 15%, 6% to 30%, 9% to 45%, or 12% to 60% water vapor by volume (user selectable)

Maximum Stack Gas Temperature

• 1200°F (optional to 2400°F)

Ambient Temperature Range

• 30°F to 140°F (-40°F with case heater option)

Altitude Range

• sea level to 6000 feet

Accuracy

• ±1% of full scale

Linearity

• ±1% of full scale

Response Time

• 60 seconds or less to reach 90% of final value

Analog Output

• 0-20mA or 4-20mA. Internal powered

Power Requirements

• 120V 60HZ @ 3A max

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CALIBRATION SYSTEM

Calibration Check Points

• (MAC155-LT)
  • 6% and 12% or 12% and 24%
• (MAC155-HT)
  • 6% and 12% or 12% and 24% 0r 18% and 36% or 24% and 48%

Calibration Point Accuracy

• 0.5% of full scale

Distilled Water Tank Capacity

• 26 oz. (22 oz. usable)

Water Usage

• 20 oz. per year

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View the MAC155 data sheet in pdf form. (requires Adobe Acrobat reader) download Acrobat reader

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