MICROPROCESSOR BASED INFRARED GAS ANALYZER Model ZRH (Single or Dual Component)


DESCRIPTION
The Model ZRH is a single or dual component non-dispersive infrared (NDIR) gas analyzer used for measuring CO, CO2, CH4, and SO2. It (Insert) achieves high accuracy and provides multiple function and ease of operation through the use of a microprocessor. It is available in 19-inch rack, panel or tabletop mountings. Zero and span calibrations are easily accomplished by pressing the appropriate key on the front panel.
The ZRH has an improved single beam optical system, which provides superior performance to conventional double beam analyzers. It is easy to maintain and offers excellent long-term stability. The ZRH is ideal for continuous measurement in the combustion control of burners, incinerators and furnaces as well as CEM-stack systems. The dual cell type of transmission detector minimizes interferences from other gas components from other gas components.
The ZRH optical design and modular construction assures long term reliability.

FEATURES
• Microprocessor controlled
• Single source, single beam optics
• Direct readout in engineering units
• Linear output
• Low sensitivity to vibration
• 1 or 2 components, multiple ranges
• Self diagnosis function
• No optical alignment required
• RS-232C interface
• Easy maintenance
• 19" rack mountable
OPTIONS
• Auto calibration
• Remote range change and range identification output
• Barometric pressure compensation
APPLICATIONS
• Combustion efficiency:
• Boilers, incinerators & furnaces (CO, CO2, SO2)
• Commercial ovens (CO, CO2)
• Controlled atmospheres:
• Heat treating (CO, CO2, CH4)
• Greenhouses (CO2)
• Fermentation (CO2)
• Air liquification (CO2)
• Landfill emissions (CO2, CH4)
• Process chemical gas analysis
• Respiration studies:
• Single breath lung diffusion (CO)
• Stack gases: CEM (CO, CO2, SO2)
• Vehicle emissions
SPECIFICATIONS 

MEASURABLE GAS COMPONENTS:
Single component, multiple range analyzer: CO2, CO, CH4, and SO2
Two-component multiple range analyzer: Any two ranges: Up to 3 ranges (optional)
200 ppm to 100%
Range- maximum 5 to 1
MEASURING SYSTEM: Nondispersive infrared absorption (NDIR) method, singe light source-single beam
OUTPUTS: Analog 4 to 20mA DC, and 0 to 1mV or 0 to 1V or 0 to 5V or 0 to 10VDC selectable RS-232C
REPEATABILITY:
1st range (low range): Within ± 0.5% of full scale
2nd range (high range): Within ± 1% of full scale
ZERO DRIFT: Within ± 1% of full scale/24 hrs
SPAN DRIFT: Within ± 1% of full scale/24 hrs
RESPONSE TIME: Within 3 seconds, depending on cell length and flow rate
LINEARITY: ± 1% of full scale
NOISE: ± 0.5% of full scale
POWER SUPPLY: 100, 115, 200 (± 10%) VAC, 50/60 Hz
POWER CONSUMPTION: 37VA max.
AMBIENT TEMPERATURE: 23-113° F (-5 to +45° C)
AMBIENT HUMIDITY: Less than 90% RH non-condensing
ENCLOSURE: Steel casing, for indoor use
DISPLAY: 4 digit LED for concentration display; 4 digit LED for sub-display
OUTPUT HOLD: Output value can be held during manual or automatic calibration function
MEASURED GAS TEMPERATURE: 32-122° F (0 to 50° C) 20-50° C for water vapor applications
WARM-UP TIME: Approximately 1 hour
GAS INLET/OUTLET, PURGE GAS INLET SIZE: NPT ¼" internal thread
MEASURED GAS FLOW RATE: 0.5 to 2 liters/min.
PURGE GAS FLOW RATE: 1 liter/min.
DIMENSIONS:
Rack Mount: 5 ¼" H x 19" W x 17 ½" D (133mm x 483mm x 448mm)
Panel Mount: 5 ¼" H x 17 ½" W x 17 ½" D (133mm x 443mm x 448mm)
Table Top: 5 ¾" H x 17 ½" W x 17 ½" D (145mm x 443mm x 448mm)
WEIGHT: Approximately 27lbs. (12 kg)
Specifications subject to change without notice


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Environmental Analytical Systems
286 Mask Island Drive
Barry's Bay, Ontario, Canada K0J 1B0

Phone: 613 756 0101
Toll Free (Canada only): 1 800 427 8591
Fax: 613 756 0909
email: info@enviro-analytical.com

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