Fixed Combustible Gas Detector, 0 to 100% Lel 4-20mA RS485 Flammable Gas Leakage Monitor High Accuracy Real-Time Display Meter

• Customization: Available
• After-sales Service: Free Repair
• Warranty: 1 Year
• Model NO.: AQ-2019
• Measuring Range: (3~100)%Lel
• Type: LED Digital Tube Display
• Accuracy: 3%Fs
• Display: Digital
• Application: Industrial, Civil
• Structure: Spring Pressure Gauge
• Connection Type: Radial Direction
• Function: Electric Signal-controlled
• Installation Structure: Fixed,Holding Pole
• Features of Measurement Medium: General Pressure Gauge
• Indicating Pressure Reference: General Pressure Gauge
• Detect Gas: Flammable Gas
• Detection Principle: Catalytic Combustion Type
• Power Supply: 24VDC (Normal Operating Voltage Range: (12~28V DC)
• Output Method: 4G;4~20mA;RS485;Relay (Active/Passive Optional)
• Alarm Reference Point: The Factory-Set Low-Limit Alarm Value Is 25% Lel a
• Transport Package: Box
• Specification: Stainless steel
• Trademark: NA
• Origin: China
• HS Code: 9026209090
• Production Capacity: 50000piece/Year

Product Description

The AQ-2019 combustible gas detection alarm is a functional and practical gas detection terminal. The alarm shell is designed as an explosion-proof shell and can be used in hazardous areas in explosion-proof environments.
There is an LED indicator light on the front of the equipment to indicate the current equipment status and display the value of combustible gas detected by the sensor, making it easy for users to directly adjust the alarm on site.
The product can communicate via 4~20mA, active/passive switching output, or standard RS485; it also supports wireless 4G communication to send data to the platform. It uses local Bluetooth to configure parameters and firmware upgrades for the device. It can also Parameter configuration and firmware upgrade of the device through remote platform.
 

 

TECHNICAL CHARACTERISTICS:

1.The numerical value is displayed in real time and the current equipment status is displayed;
2.4-20mA standard signal output, relay output, RS485 communication optional;
3.Support wireless full network 4G communication;
4.Use local Bluetooth parameter configuration and firmware upgrade; support remote platform parameter configuration and firmware upgrade;
5.It has a two-level alarm output function that can automatically turn on the fan and solenoid valve;
6. Modular design for easy wiring and maintenance;
 

 

APPLICATION:

Pipe Gallery Gas Transmission and Distribution
metallurgy, refining
Petrochemical    
School
Biochemical medicine

 

 

SPECIFICATION:
 

Detect gas	flammable gas
Detection principle	Catalytic combustion type
Measuring range	(3~100)%LEL
Accuracy	3%FS
Power supply	24VDC (normal operating voltage range: (12~28V DC)
output method	4G;4~20mA;RS485;Relay (active/passive optional)
Alarm reference point	The factory-set low-limit alarm value is 25% LEL and the high-limit alarm value is 50% LEL.
Explosion level	Ex d lC T6 Gb
shell material	Aluminum alloy
Interface material	304 stainless steel
Posting time	10-1440 minutes can be set (wireless communication)
screen display	LED digital tube display
Working temperature	(-40~70)°ºC
Working environment humidity	(10~95)%RH (non-condensing)
Storage environment	Room temperature, normal atmospheric concentration, atmospheric pressure (86~106)KPa
product weight	≤1.35KG
appendix	Expansion screws; power adapter (optional); sound and light alarm (optional)

DIEMENSION:

Wireless 4G communication + sound and light alarm type


 

4-20mA/RS485/relay output + sound and light alarm

 

The List of Combustible gas
 

AQ-2019List of measurable combustible gases
Code	Name	Molecular formula	Range Code	Range	Low limit alarm point	High limit alarm point
K00	Combustible gas (no sulfur, phosphorus, silicon or other gases on site)	-	LEL	100%LEL	25%LEL	50%LEL
K01	and gases or volatile liquids containing halogen (fluorine, chlorine, bromine, iodine, astatine) elements)	CH4	LEL	100%LEL	25%LEL	50%LEL
K02	Methane	C6 H5CH3	LEL	100%LEL	25%LEL	50%LEL
K03	Toluene	CH3OH	LEL	100%LEL	25%LEL	50%LEL
K04	Methanol	HCOOCH3	LEL	100%LEL	25%LEL	50%LEL
K05	Methyl formate	HCOOCH2CH3	LEL	100%LEL	25%LEL	50%LEL
K06	Ethyl formate	CH3CH3	LEL	100%LEL	25%LEL	50%LEL
K07	Ethane	CH3CH2OH	LEL	100%LEL	25%LEL	50%LEL
K08	ethanol	CH3CH2C6 H5	LEL	100%LEL	25%LEL	50%LEL
K09	Ethylbenzene	CH2 =CH2	LEL	100%LEL	25%LEL	50%LEL
K10	Ethylene	CH3COOCH2CH3	LEL	100%LEL	25%LEL	50%LEL
K11	Ethyl acetate (ethyl acetate)	CH3CH2CH3	LEL	100%LEL	25%LEL	50%LEL
K12	propane	CH3CH2CH2OH	LEL	100%LEL	25%LEL	50%LEL
K13	Propanol	CH2 =CHCH3	LEL	100%LEL	25%LEL	50%LEL
K14	Acrylic	(CH3)2CO	LEL	100%LEL	25%LEL	50%LEL
K15	acetone	C4 H10	LEL	100%LEL	25%LEL	50%LEL
K16	Butane	CH3CH2COCH3	LEL	100%LEL	25%LEL	50%LEL
K17	Butanone (also called methyl ethyl ketone or methyl ethyl ketone)	CH2 =CHCH=CH2	LEL	100%LEL	25%LEL	50%LEL
K18	Butadiene	C5 H12	LEL	100%LEL	25%LEL	50%LEL
K19	Pentane	CH3(CH2)4CH3	LEL	100%LEL	25%LEL	50%LEL
K20	Hexane	C7 H16	LEL	100%LEL	25%LEL	50%LEL
K21	Heptane	CH3(CH2)3CH3	LEL	100%LEL	25%LEL	50%LEL
K22	n-octane	CH3(CH2)7CH3	LEL	100%LEL	25%LEL	50%LEL
K23	Nonane	CO	LEL	100%LEL	25%LEL	50%LEL
K24	carbon monoxide	NH3	LEL	100%LEL	25%LEL	50%LEL
K25	Ammonia	H2	LEL	100%LEL	25%LEL	50%LEL
K26	hydrogen	C6 H6	LEL	100%LEL	25%LEL	50%LEL
K27	benzene	(CH3)2CHCH3	LEL	100%LEL	25%LEL	50%LEL
K28	Isobutane	(CH3)2CHOH	LEL	100%LEL	25%LEL	50%LEL
K29	Isopropyl alcohol	CH2(CH2)4CH2	LEL	100%LEL	25%LEL	50%LEL
K30	cyclohexane	CH2(CH2)3CH2	LEL	100%LEL	25%LEL	50%LEL
K31	cyclopentane	CH3CHCH2O	LEL	100%LEL	25%LEL	50%LEL
K32	Propylene oxide	CH2CH2O	LEL	100%LEL	25%LEL	50%LEL
K33	Ethylene oxide	(CH3)2O	LEL	100%LEL	25%LEL	50%LEL
K34	dimethyl ether	C6 H4(CH3)2	LEL	100%LEL	25%LEL	50%LEL
K35	xylene	C4~C12hydrocarbon mixture	LEL	100%LEL	25%LEL	50%LEL
K36	gasoline	-	LEL	100%LEL	25%LEL	50%LEL
K37	Jet fuel, kerosene	C6 H5CH=CH2	LEL	100%LEL	25%LEL	50%LEL
K38	Styrene (monomer)	Methane, ethane, propane, butane, etc. multi-component mixed gaseous fossil fuels	LEL	100%LEL	25%LEL	50%LEL
K39	natural gas	The main ingredients are propane and butane	LEL	100%LEL	25%LEL	50%LEL