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| Product Name | GaoPin NGP5-O2-A Stationary oxygen alarm | Bosean BH-90-O2 Portable Gas Detector |
| Product Price | In coming | $149.00 |
| Details | Details | |
| Model comparison | ||
| Usage Type | Fixed Online | Portable |
| Gas Quantity | Single gas | Single gas |
| Sensor Principle | Electrochemical | Electrochemical |
| Sampling Method | Diffusion Pumped Flow-through | Diffusion |
| Detection gas | O₂ | O₂ |
| T90 Response Time | ≤20s | Others |
| Explosion-proof | Ex d (Flameproof) | Ex ia (IS) |
| IP Rating | IP65 | IP65 |
| Data Output | 4-20mA RS485 Wireless | |
| Parameter comparison | ||
| Detect gas | oxygen gas | oxygen |
| detection Range | 0-30%VOL | |
| resolution | 0.01%VOL | 0.1%VOL |
| Detection principle | electrochemistry | |
| display mode | LCD liquid crystal display; 1.7-inch high definition color screen display on site, optional no display on site, or optional MIC2000 controller remote display, control, alarm | |
| detection accuracy | ≤±3%（F.S） | |
| Sensor life | 2~ 3 years | 2 years |
| Linearity | ≤±2% | |
| Sexual repeability | ≤±2% | |
| uncertainty | ≤±2% | |
| Response Time | T90 ≤ 20 seconds | T<60s |
| recovery time | ≤ 30 seconds | |
| signal output | Bus system RS485 (RTU), three (four) wire system 4~ 20mA, optional: 0~ 20mA, 1~ 5V, 0~ 5V, 0~ 10V, wireless transmission, network transmission, SMS alarm | |
| Operating environment | Temperature: -40℃~ + 70℃, Humidity: ≤ 10~ 95% RH, Built-in Filter can be used in high humidity or high dust environment | |
| working Voltage | 12~ 30VDC DC, the standard power supply of a single device is 24V, 1A or greater than 1A DC regulated switching power supply | |
| Power Reference | 24V, 2.1A switching power supply can drive 40 toxic Gas detectors, or 15 combustible, infrared Gas detectors | |
| Operating Mode | Fixed installation, online detection, diffusion measurement; optional pipeline, flow, pump suction measurement | |
| Installation method | Ducted, Wall-Mounted. Ducted Operating Pressure is atmospheric pressure +/- 30%, beyond the Range needs to be reduced | |
| Alarm method | Default 1 channel, optional 2 passive touch point (dry node) output, three-level alarm, alarm point can be set. On-site sound and light alarm (optional) | |
| connecting cable | 4~ 20mA choose three-core Shielding cable, RS485 choose four-core, when the distance exceeds 1000 meters, the single wire diameter is ≥ 1.5mm; Shielding is connected to the earth | |
| Protection Rating | IP65 | IP65 |
| Explosion-proof Type | flameproof Type | |
| Explosion-proof sign | Exia II CT6, Certificate No.: CNEx15.1283 | Exib IIB T3 Gb |
| exterior Size | 210*170*85mm(L*H*W) | |
| weight | 1.8Kg | Approximately 130g (excluding Portable Accessories) |
| Option | Integrated sound and light alarm, split sound and light alarm, 24V DC power supply, accessories connected to computer monitoring: free host computer software, RS485/RS232 converter, notebook computer without RS232 interface also requires USB/RS232 conversion cable, if you want network transmission also need TCP/IP converter. | |
| wireless transmission | Optional function, you can wirelessly transmit data to mobile phones, remote monitoring centers, monitoring computers and other monitoring equipment, and use the host computer to perform data analytics, storage, printing and other functions on the computer | |
| preprocessing system | Optional: room temperature and high humidity pretreatment system, high temperature and high humidity pretreatment system, high temperature, high humidity and high dust pretreatment system | |
| mounting accessories | Optional: wall mounting bracket, mounting buckle fixed on the pipe (four-point, six-point pipe), pipe-mounted stainless steel threaded welding seat or flange (specify the pipe or flange Size, such as DN50, DN15...), rain cover, 24VDC or 220AC sampling pump (sampling distance 10 meters), Vacuumpump (sampling distance greater than 40 meters), 24V switching power supply, pressure reducing valve, flow meter | |
| Application | Petroleum, chemical industry, environmental protection, gas distribution, warehousing, flue gas analysis, air treatment, etc. all occasions that require fixed installation and online detection of gas concentration | |
