江森自控風(fēng)管型CO2 資料下載

Description

Johnson Controls offers a complete line of Carbon Dioxide (CO?) transmitters for measuring and transmitting CO? levels, ranging from 0 to 2,000 parts per million (ppm)，within Heating, Ventilating, and Air Conditioning (HVAC) applications. These compact, duct mounted devices offer a choice of 0 to 10 V or 0 to 20 mA output signals and feature an oprional relay output with or without a digital display. Johnson Controls CO? transmitters are easy to install and to operate.

The silicon-based CARBOCAP sensor delivers high accuracy and long-term measurement stability over a five-year period without calibaration. the diffusion-aspirated, single-beam, dual-wavelength sensor structure is remakarbaly simple. It consists of an infrared source, a sample cell, an IR detectou, and a tunable interference filter that enables measurements at two wavelengths.

Reference measurements made using a tunbale interference filter eliminate the typical weakness of dual-beam sensors and permits shifting the optical pass bａnd electronically. This innovative design provides precise reference readings that eliminate the tyically broad deviation expexted from a traditional CO? sensor.