Product Overview
IN71 series air Air flow  transmitter is applied in HVAC environment, and can be fitted with a variety of probe rods to complete air volume measurement under a variety of complex working conditions. The hardware part is designed with high reliability, equipped with one key zero calibration button, and has no independent drift and temperature drift after installation. The software part adopts extremely high speed data sampling, which can quickly and smoothly output accurate air volume results.
Main technical indicators
Measuring range: selected according to the on-site air flow
Measurement accuracy: ± 3% FS
Signal output: current output type: 4 ～ 20mA (three wire system), load resistance RL ≤ 500 Ω
Voltage output type: 0 ～ 10V (three wire system), load resistance RL ≥ 10K Ω
485 output type: ModBus RTU
Power supply: 20~28VDC
Electrical connection: PG9, cable diameter: 4-8mm
Enclosure protection grade: IP65
Maximum working pressure: less than 1 Bar
Operating temperature: transmitter: - 40 ℃～+60 ℃ (without display), - 20 ℃～+60 ℃ (with display), split type IN20 self balancing speed averaging piece: - 40~+120 ℃, split type YGM20 speed averaging piece: - 40~+220 ℃
Storage environment: temperature - 20 ℃～+60 ℃, humidity 0 ～ 85% RH
Circuit connection

Installation dimension drawing

Model Selection Table