Description Overview GAOTek ammonia and chlorine leak detector is designed for industrial use. By adopting high-performance gas sensor and MCU technology, combined with sophisticated SMT manufacturing process, this detector has good repeatability, high accuracy and long lifespan. Features High measurement accuracy, stable performance and long service life 4 mA to 20 mA analog signal output, RS485-RTU digital upload HART output, support Hart handheld communicator for settings 3 relay outputs for 1st alarm, 2nd alarm and fault High-performance LCD screen display Non-contact operation by magnetic bar / infrared remote control Smart sensor module, free of calibration, easy to maintain Bluetooth communication Remote upgrade function (optional) Technical Specifications Sample Method Diffuse Naturally Response Time Lel: T 90 ≤ 15 s Toxic Gas: T 90 ≤ 30 s Relays For 1st Alarm, 2ND Alarm, Fault ; Spst Contacts Ra State Indication Yellow–Fault, Red–Alarm, Green–Power Humidity ≤ 95% Rh (No Condensation) Ex Grade Ex D Iic T6 GB or Ex Td A21 IP67 T 176 °F (80 ºC) Enclosure Material Stainless Steel Measuring Gas Combustible Gas, Toxic Gas Power 24 V DC ± 6 V, ≤ 2.5 W Electrical Output 4 mA to 20 mA, Hart, RS485-RTU Operation By Magnetic Bar or IR Remote Control Ambient Pressure 86 kpa to 106 kpa Ingress Protection IP67 Operating Temperature Lel: -40 °F to 158 °F (-40 ºC to 70 ºC) Toxic: -4 °F to 122 °F (-20 ºC to 50 ºC) Dimensions 5.12 in x 8.23 in x 4.56 in (130 mm x 209 mm x 116 mm)
