Henan Bosean Electronic Technology Co., Ltd.
one stop gas detection solution from China factory
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LED multi channels Gas Detector Controller MODBUS Rs 485/4-20mA
Description:
This product is a single-channel / dual-channel / four-way (4-20) mA / RS485 transmitter signal input intelligent control system developed by the company. This product is highly stable. High accuracy and high intelligence, the external control port is rich, the user can freely choose the type of the connected transmitter and the access port, and can perform on-site detection and alarm by simple setting. The system has integrated sound and light alarms and provides a relay normally open control terminal.
The system is widely used in applications where toxic and harmful gases need to be detected. When the index of a certain gas to be tested in the field exceeds or falls below the set standard, the system will perform a series of alarm actions, such as alarm, exhaust, tripping, etc.
The gas control panel can connect 1 or more detecting probes.It can monitor toxic and harmful gas content in one or more place.
Specifications:
| Product type | BH-50 Gas controller |
| Channel | Single channel,two channels,four channels |
| Power supply: | AC220V±10% 50Hz |
| Consumption: | ≤10W |
| Signal input: | 4~20mA and RS485 |
| Single output: | two lines RS485(MODBUS) |
| Working temperature | -10ºC~50ºC |
| Working humidity | 0-95%RH (no dew) |
| Contact output | Free contact output, max power 1kW |
| Installation method: | Wall-mounted |
| Dimensions | 380x210x80mm(L×W×H) |
Supported Gases:
| No. | Detected Gas | Detecting Scope | Resolution | Low/High Alarm Point | Response Time | Detection Accuracy |
| 1 | PH3 | 0-20ppm | 0.1ppm | 5ppm/10ppm | ≤25s | ±5%(F.S) |
| 2 | O2 | 0-30%vol | 0.1%vol | 19.5%vol/23.0%vol | ≤15s | ±5%(F.S) |
| 3 | EX | 0-100%LEL | 1%LEL | 25%LEL/50%LEL | ≤5s | ±5%(F.S) |
| 4 | CO | 0-1000ppm | 1ppm | 50ppm/100ppm | ≤25s | ±5%(F.S) |
| 5 | H2S | 0-100ppm | 1ppm | 10ppm/20ppm | ≤30s | ±5%(F.S) |
| 6 | NO2 | 0-20ppm | 0.1ppm | 3ppm/10ppm | ≤25s | ±5%(F.S) |
| 7 | NO | 0-250ppm | 1ppm | 25ppm/50ppm | ≤60s | ±5%(F.S) |
| 8 | SO2 | 0-20ppm | 0.1ppm | 5ppm/10ppm | ≤30s | ±5%(F.S) |
| 9 | CL2 | 0-20ppm | 0.1ppm | 1ppm/10ppm | ≤30s | ±5%(F.S) |
| 10 | NH3 | 0-100ppm | 1ppm | 25ppm/50ppm | ≤50s | ±5%(F.S) |
| 11 | H2 | 0-1000ppm | 1ppm | 50ppm/100ppm | ≤60s | ±5%(F.S) |
| 12 | HCN | 0-10ppm | 0.1ppm | 1ppm/5ppm | ≤200s | ±5%(F.S) |
| 13 | HCL | 0-10ppm | 0.1ppm | 1ppm/5ppm | ≤60s | ±5%(F.S) |
| 14 | CH4 | 0-100%LEL | 1%LEL | 25%LEL/50%LEL | ≤5s | ±5%(F.S) |
Q1:Are you a trading company or manufacturer ?
A1:We are manufacturer.
Q2:What about the payment method?
A2:T/T, Paypal, Western Union, L/C is available.
Q3:Does your company accept customization?
A3:We do customizing service for customers.
Q4:What about the Shipment?
A4:We'll choose proper transportation mode based on the weight of goods, usually arrange shipment by air express such as DHL,FEDEX,TNT or UPS.
Q5:What about after-sale service?
A5:12 months warranty for all kinds of products.