Hello sir, Can you guide about difference between short range (5m to 40 m) & Medium Range ( 40 m to 120m) & Long Range (120m to 210m). What is difference between working and construction?? Also what happen if we select medium range detector below 40 m.???
Check output 4-20 мА signal from transmitter by using multimetr. If you have the signal more than 4 мА but at display you see 0.0% LEL that problem is in transmitter, if signal is 4 mA and at display 0.0% LEL that you have problem this your HMI paneI.
