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| BCA2000 NDIR/O2 |
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DESCRIPTION |
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| The BCA Models 2000 Series NDIR/O2 digital analyzer product line is designed around a state of the art 16 bit microprocessor, with 16 digital inputs, 5 digital outputs, 16 analog inputs and 5 analog outputs. The analyzer can be manually operated from the keypad or remotely via RS-232C communications and discrete inputs. The analyzer display includes screen presentation of all analyzer alarms. For precision measurements, the analyzer's accuracy is increased by entering calibration curve fit polynomials. Automatic calibration may be activated locally or remotely and includes auto cal via preset times. | |
METHOD OF OPERATION - NDIR |
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| The BEICHENG Analytical Tech's NDIR analyzer is based on the infrared absorption characteristics of gases. Using a single infrared beam to measure gas concentrations, this analyzer produces highly stable and reliable results. A single infrared light beam is modulated by a chopper system and passed through a sample cell of predetermined length containing the gas sample to be analyzed. As the beam passes through the cell, the sample gas absorbs some of its energy. The attenuated beam (transmittance) emerges from the cell and is introduced to the front chamber of a two-chamber infrared microflow detector. The detector is filled with the gas component of interest and consequently the beam experiences further energy absorption. This absorption process increases the pressure in both of the chambers. The differential pressure between the front and rear chambers of the detector causes a slight gas flow between the two chambers. This flow is detected by a mass-flow sensor and is converted into an output signal. | |
| METHOD OF OPERATION - OXYGEN |
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| The BCA' oxygen analyzer section utilizes the electrochemistry method to determine the percent level of oxygen contained in the sample gas. The oxygen level is displayed on the LCD panel in engineering units. | |
| FEATURES |
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• Measures
from 0-50 ppm up to 100% Full Scale (CO / CO2 / CH4 / THC / SO2) • Measures Oxygen (O2) from 0-30% • Multi-Component • Four User Definable Ranges per Component • Fast Response Time • Auto Ranging / Auto Calibration • Comprehensive Diagnostics • Output Options: Analog (User Scalable), (RS232) • Displays & Outputs: Concentrations, Diagnostics, Alarms & Preventative Maintenance • Remote Monitoring & Control |
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| APPLICATIONS |
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• Stack Gases
(CEM) • Combustion Efficiency • Turbine/Generator Feedback Control • Process Chemical Gas Analysis • Personnel Safety • Fuel Cell Analysis • Vehicle Emissions |
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| SPECIFICATIONS |
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| IR
ANALYSIS METHOD Non-Dispersive Infrared (NDIR) NDIR COMPONENTS CO / CO2 / CH4 / THC / SO2 / O2 DETECTOR TYPE Microflow RESPONSE TIME (IR) T90 < 10 IR SAMPLE CELL Stainless Steel with Replaceable Gold Cell Liner RESOLUTION 0.0001 (Displays Five Significant Digits) REPEATABILITY Better than 1.0% of Full Scale LINEARITY Better than 0.5% of Full Scale of Factory Calibrated Ranges NOISE Less than 1% of Full Scale of Factory Calibrated Ranges ZERO & SPAN DRIFT Less than 1% of Full Scale per 24 Hours ZERO & SPAN ADJUSTMENT Via front panel, TCP/IP or RS-232 SAMPLE FLOW RATE 0.25 to 2.0 LPM (Consult factory for other flow rates) OXYGEN ANALYSIS METHOD Paramagnetic O2 RANGES 0 - 1% up to 0-24% O2 Full Scale O2 RESPONSE TIME T90 < 10 Seconds 600 SERIES FEATURES: OUTPUTS AVAILABLE TCP/IP, RS232, Four Scalable Analog 0-10 V / 4-20 mA (Allows Offset & Expandable Range DC Analog Outputs) DISCRETE CONTROL Remote/Local Control, Range Change, Range Sense Mode (All TTL Logic) DISCRETE ALARMS (Local & Remote Adjustable) General Fault/ TTL Logic (Ground True) Calibration Failure/ TTL Logic (Ground True) Concentration (2 each)/ TTL Logic (Ground True) DIGITAL DIAGNOSTICS Pressure Temperatures Pressure Control Voltages Flow Parameters KEYPAD DISPLAYS Factory Settings Full Scale Range Select Auto Cal Times SPECIAL FEATURES Auto Ranging Auto Calibration (adjustable through internal clock) DISPLAY 3" x 5" Back lit LCD SAMPLE TEMPERATURE Up to 50°C, Non-condensing AMBIENT TEMPERATURE 5 to 45°C AMBIENT HUMIDITY Less than 90% RH Non-condensing WARM-UP TIME 20 Minutes POWER REQUIREMENTS 115/230 (±10%) VAC; 50/60 Hz; DIMENSIONS 180×483×350 (mm) WEIGHT 20kg Specifications are subject to change without notice. |
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