The gas detector needs to be calibrated by which manufacturer?

) !: Song Dynasty: ) The portable single gas detector is an instrument that can continuously detect the concentration of toxic, harmful, flammable and explosive gases in the working environment. The detector detects gas concentration by natural diffusion. It adopts imported sensors and has good sensitivity and excellent repeatability. It has automatic detection at startup and has advanced self-diagnosis and self-repair functions. The instrument adopts embedded micro-control technology, and the menu operation is simple and functional. Complete, high reliability, with a variety of adaptive capabilities. It uses an LCD Chinese character display to provide intuitive and clear fault and under-voltage indications. The screen display is rotatable, making it convenient for people with different habits. Ergonomic design, comfortable grip, and simple operation.
< ) Song Dynasty) b < ) Song Dynasty) b ) !: Song Dynasty: ) & This instrument can save alarm records, which can be viewed by pressing the button or the data can be transferred to the computer through the B interface. It can be further analyzed after being equipped with computer software. It can set alarm points, calibrate, read, print, save alarm records and other large-capacity lithium batteries, which greatly improves the battery life of the device. It is charged with the B interface and is convenient for charging with a universal charger.
< ) Song Dynasty) b ) !: Song Dynasty: ) &The shell of this detector is made of polycarbonate material and composite elastic rubber material. It has high strength, temperature resistance, corrosion resistance and good hand feel. This product is suitable for detecting the concentration of toxic and harmful gases in the ambient air. It is widely used in metallurgy, power plants, chemical industry, mines, tunnels, tunnels, underground pipelines and other places to effectively prevent accidents.
< ) Song style) b ) !: Song style: )
< ) Song style) b ) !: Song style: ) Basic parameters:
< ) Song style) b) !: Song style: ) Overall dimensions ：&
< ) Song Dynasty: ) b ) !: Song Dynasty: ) Weight:
< ) Song Dynasty) b ) !: Song Dynasty: ) Sensor type: electrochemical type (combustible gas is catalytic combustion type, special ones are separately Description)
< ) Song Dynasty) b ) !: Song Dynasty: ) Detection gas: oxygen, combustible gas, toxic and harmful gases (etc.)
< ) Song Dynasty) b ) !: Song Dynasty: ) Response time: Oxygen &Carbon monoxide&Combustible gas& (Others omitted)
< ) Song Dynasty) b ) !: Song Dynasty: ) Time display: This machine has year, month, day and clock display functions
< ) Song Dynasty) b ) !: Song font: ) Display mode: dot matrix LCD Chinese display, high brightness white backlight
< ) Song font) b ) !: Song font: ) Alarm mode: Sound alarm B or above (c away from the instrument)
< ) Song font) b ) !: Song font: ) &Light alarm&Red
< ) Song font) b ) !: Song font: ) &Vibration alarm&Built-in vibration motor
< ) Song font) b ) !: Song Dynasty: ) Working mode: continuous working (combustible gas can work for about hours when fully charged, and other gases can work for about days. The above is for reference only, the specific standby time depends on the number of alarms)
< ) Song Dynasty) b ) !: Song Dynasty: ) Temperature range: ℃&～℃
< ) Song Dynasty) b ) !: Song Dynasty: ) Humidity range: %～% non-condensing
< ) Song Dynasty) b ) !: Song Dynasty: ) Power supply method: lithium battery power supply
< ) ) b ) !: : ) Charging time: about ~ hours Charging voltage: C (DC)