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) |