LBW-420-1-EC Cool Air Inc. Ammonia Detector, Electrochemical Sensor, 0-500 ppm, 4-20 mA output, 3 output relay contacts, 24 VDC

The LBW-420 ammonia gas detector has all of the features you need to protect your personnel and your property. This versatile detector is easy to use, requires little maintenance, and is certified to both UL and CAN/CSA standards.

Main features include a bright digital readout for displaying the ammonia concentration (ppm), continuously providing real time ammonia levels inside the room. Alarm status LEDs on the front of the device, indicate current alarm conditions. 4-20 mA output available for seamless integration with existing PLC control systems. Function as a stand-alone device, utilizing the three output relays (low alarm, high alarm, aux) for connection to alarm lights, horns, exhaust fans, ventilation equipment and more. All of this packaged in a bright, safety yellow enclosure allowing for quick identifications in crowded equipment rooms and process areas.

• Bright LED display, indicating NH3 concentration in Real Time
• Gas sensor mounted externally, ensuring highest probability for immediate detection
• Annual calibration requirement, process is simple and quick, reducing maintenance costs
• Industry standard 4 – 20 mA output for connecting to controllers and PLCs
• Three relay output contacts (Low Alarm, High Alarm and Auxiliary) for stand-alone operation
• Programmable low and high alarm set points and 4-20 mA output scale (factory setings, 50 ppm low alarm, 100 ppm high alarm and 0-250 ppm for 4-20 mA scale)
• 115 VAC input voltage