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| Product Name | GaoPin NGP5-CH2O-A Fixed formaldehyde alarm | Bosean BH-90-CH2O Portable Gas Detector |
| Product Price | In coming | $235.00 |
| 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 | HCHO | HCHO |
| 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 | Formaldehyde gas | Miscellaneous |
| Range | 0-10ppm | 0~ 10Pppm (formaldehyde CH2O) |
| resolution | 0.01ppm | 1/0.1ppm |
| Detection principle | electrochemistry | |
| display screen | 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 error | ≤±2% | |
| Sexual repeability | ≤±2% | |
| uncertainty | ≤±2% | |
| Response Time | T90≤20s | 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. The Operating Pressure of the Ducted Type is Atmospheric Pressure +/- 30%, and the pressure reduction treatment is required beyond the Range | |
| 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 |
| dimensions | 210*170*85mm | |
| weight | 1.8Kg | Approximately 130g (excluding Portable Accessories) |
| Accessories | Integrated/split sound and light alarm, 24V DC regulated power supply, even computer monitoring accessories (host computer software, RS485/RS232 converter, etc.), TCP/IP converter | |
| Wireless signal output | Optional function, can wirelessly transmit data to mobile phones, remote monitoring centers, computers and other equipment for data analytics, storage, printing | |
| preprocessing system | Optional: room temperature and high humidity, high temperature and high humidity, high temperature and high humidity and high dust pretreatment system | |
| Mounting accessories | Optional: wall mounting bracket, pipe mounting buckle, stainless steel thread welding seat or flange, rain cover, sampling pump, Vacuumpump, 24V switching power supply, pressure reducing valve, flowmeter | |
| Application | Petroleum, chemical industry, environmental protection, gas distribution, warehousing, flue gas analysis, air treatment and other occasions that require fixed installation to detect gas concentration online | |
