The LB-21FXA is a fixed gas analyzer designed for continuous monitoring of combustible and toxic gases in explosive environments, made from corrosion-resistant aluminum alloy and stainless steel. It features a high sensitivity sensor, built-in alarm system, and various outputs, including RS485 and 4-20 mA, allowing for remote monitoring and integration with distributed control systems. Suitable for industries such as ceramics, steel, and agriculture, it aids in environmental regulation and gas leakage analysis.

1. Fixed Gas Analyzer LB-21FXA
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2. Overview
Fixed gas analyzer LB-21FXA is a fixed model analyzer designed for
continuous monitoring, detection and analysis of combustible, toxic gases
or VOCs present in explosive atmospheric areas. Composed of aluminum
alloy and stainless steel makes it corrosion resistant. Equipped with
control panel for remote controlled monitoring of large analysis area. Built-
in alarm and fault relay system facilitates personnel and plant protection
from flammable, toxic and oxygen hazards.
Specifications :
Sensor High sensitivity sensor
Sampling method Diffusion
Detection range
CO, O2, Cl2, SO2, O3, CO2, CH4,
H2S, NH3, NO, NO2, H2, LEL,
LPG, PID, EXP, CH4 (IR), C3H8
(IR)
Operating humidity ( non-condensing ) 15 % to 90 % RH
Operating temperature ( -20 °C to 55 °C )
Operating pressure 86 kPa to 106 kPa
Display panel 4-digit LED display
Data interface RS485 interface
Alarm system
Audible ( > 90 dB )
Bright dual color LEDs
Enclosure material Aluminum alloy and stainless steel

3. System wiring 3-core shield cable ( 3 x 1.0 mm )
Protection class IP65
Signal output 4 to 20 mA
Power supply 24 V DC
Weight 1.5 kgs
Features :
Fixed orientation with digital and analog outputs
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Continuous monitoring system (4 to 20 mA, RS485 MODBUS output )
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Distributed Control System ( DCS ) compatible
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Enhanced sensitivity with short response time
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4 digit LED display of real time gas concentration data
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Audio-visual alarm system with LED light ( trigger process controls)
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Ex d IIC T6 Gb explosion proof grade enclosure
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Wireless fixed detector ( optional )
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3 available models ( non-display, display and display with acousto-optic
alarm )
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Applications :
Used for the measurement and analysis of gas output or leakage in
ceramic, iron-steel industry, thermal treatment, electronic, agricultural,
biochemical facilities for environmental pollution regulation and energy
saving
Labotronics Ltd. Union House, 111 New Union Street, Coventry CV1 2NT,

4. UK
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info@labotronics.com www.labotronics.com