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Oxygen sensor (hereinafter referred to as the instrument), embedded micro-controller technology, according to the latest design and manufacturing standards, and various types of supporting the use of safety monitoring system, continuous online monitoring presence in the environment where inflammable and explosive gas mixture of oxygen concentration.
GYH25 oxygen sensor is a new generation of intelligent sensors with standard signal output, can be used with various domestic power instrument and control systems supporting the use of continuous monitoring of flammable oxygen concentration in the work environment.
1:GYH25 oxygen sensor characteristics: Communication distance, contact output power, local display, sound and light alarm, infrared remote adjustment, and easy installation.
2:GYH25 oxygen sensor working principle: When the instrument is placed oxygen environment, the transom of oxygen through the instrument shell into the gas chamber, air indoor electrochemical sensor to react with oxygen diffusion way, produced is proportional to the measured gas concentration of electrical signals.Signal is amplified by the linear amplifier input A / D converter, the microprocessor data processing, the digital display of the oxygen concentration, and by the signal output circuit outputs signals for other devices.The alarm circuit is determined by the instrument buzzer, LED and driver circuit, when the oxygen concentration is below the alarm set point, the instrument will be audible alarm signal.
Measurement range (0 to 25)%
Basic error ≤
Response time <60s
Power Supply DC (9 ~ 24) V/50mA `(intrinsically safe power supply)
Output signal (200 ~ 1000) Hz, RS485 (baud rate)
Digital signal 2400bps
transmission distance ≥2km
Alarm intermittent sound, light alarm, alarm point continuously adjustable
sound level intensity ≥80dB
Ex Type: Exib I
Sensor life expectancy> 2 years (imported electrochemical)
4-digit LED display
Dimension 266×126×56mm
Weight 1kg
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