江森自控风管型co2资料下载descriptionjohnsoncontrolsoffersacompletelineofcarbondioxide(co₂)transmittersformeasuringandtransmittingco₂levels,rangingfrom0to2,000partspermillion(ppm)
江森自控风管型co2 产品详情
江森自控风管型co2资料下载
description
johnson controls offers a complete line of carbon dioxide (co₂) transmitters for measuring and transmitting co₂ 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 co₂ 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 co₂ sensor.