Open path CH4 gas leakage detector with TDLAS technology for gas
station , gas storage , off-shore station
Product Brief Introduction:
OPGD1000 open path laser gas detector is designed for out door use
for detecting gas leakage of Methane and toxic gases. It is made by
combining excellent SMD technology with high performance, large
light-sensitive detector and micro-control technology. It has good
repeat-ability, temperature and humidity characteristics, long
service life and convenient operation.
OPGD1000 is widely used in oil refinery, chemical plant, metallurgy
industry, electric power industry and other places that may produce
harmful gases.
Features:
- High accuracy, stable performance and long lifespan;
- 4-20mA standard signal output;
- Easy operation and setting through handheld operator or on the
computer;
- Easy installation with specific installation plate;
- Fast response and high sensitivity;
- Long detection distance: Maximum 120m.
Technical parameters:
| Target gas | CH4 |
| Detection range | 0-100%LEL.m / 0-2000ppm.m |
| Preset alarm value | 20%LEL.m |
| Response time | T90≤3s |
| Protection distance | ≤120m |
| Working voltage | 14VDC～32VDC |
| Signal output | 4-20mA |
| Installation method | Wall-mounted or on the pole |
| Housing material | 316L stainless steel |
| Safety grade | SIL II |
| Protection grade | IP66 |
| Explosion proof | Ex d IIC T6 Gb |
Product Application & Details:
Trouble shootings guid:
| Fault | Possible reason | Suggested solution |
| Output is 0mA | Electrical connection problem | 1. Check the power supply and the voltage should be from within the
range of 14V to 32V. 2. Check the cable connection of 4-20mA terminal. 3. Check the 4-20mA configuration of the controller. |
| Optical window pollution | Clean the window with the accessory paper |
Visibility along the path of the beam is very low due to fog,
blizzard, or sandstorm
| 1) Ensure that the receiver is visible from the sender. If you can
see, even if there is some difficulty, poor visibility is not a
problem; 2) If you cannot see the receiver from the sender, wait until
visibility improves. |
| Output is 1.5mA | Beam block | Inspect the optical path between the sender and receiver and remove
any obstacles that may exist. |
The sender and receiver are not aligned
| 1) Connect the computer or operator to the receiver and check the
signal; 2) If the signal is low, use the auxiliary alignment device to
align until the signal reaches the required level. |
| Current leakage | Not earthed | Check the reliability of the terminal grounding of the device. |
Cannot communicate with computer RS485
| Communications problem | 1) Check the power supply voltage of the device; 2) Check the address of the connection line of the serial port; 3) Replace the serial connection line; 4) Restart the data debugging assistant on the computer. |
| Visual laser light source gives off weak light | Battery is low | Replace the battery |
| Connector ports are not clean and contaminated | Scrub gently with an alcohol sponge |
| Large deviation of current output | Incorrect current calibration | Re-calibrate the output current |
Company profile:
Henan Weiguo Intelligent Technology Co., LTD., founded in 2015, is
an important subsidiary of Hanwei Electronics Group Corporation
(Stock no.:300007) in the field of intelligent healthy, safe home
and IoT business. Henan Weiguo Intelligent Technology Co., LTD.,
relying on the core sensor technology, focuses on gas and smoke
alarm, air quality monitor, alcohol tester and firefighting
products. Based on introduction of featured technology from both
Hanwei Electronics Group Corporation and abroad, Henan Weiguo
intelligent Technology Co., LTD., has developed into an innovative
company with the collection of design, R&D development,
production, sales and service. We will always be committed to
becoming the leader in intelligent hardware, providing safe,
healthy, environmentally friendly and intelligent working and
living environment for families and users all over the world.
(Hanwei Electronics Group Corporation (Stock no.:300007), founded
in 1998, is an influential manufacturer of gas sensors and
instruments in China and a leading supplier of sensor-based IoT
solutions in China. Hanwei Electronics Group Corporation is
committed to providing perfect solutions for smart city, safe
production, environmental protection and people's health.)
