Fixed oxygen concentration alarm

NegotiableUpdate on 01/31

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Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Product Description: ET 2-O2 oxygen alarm is suitable for continuous online detection of oxygen concentration in various industrial and special environments, as well as on-site sound and light alarms. It plays a warning role for the safety of hazardous operations in the field. The instrument adopts imported electrochemical sensors and microcontroller technology ..

Product Details

ET2-O2 Oxygen alarmSuitable for various industrial and special environmentsoxygenContinuous online detection of concentrationAnd on-site sound and light alarmTo provide early warning for the safety of operations at hazardous sites, imported instruments are usedelectrochemistrySensors and MicrocontrollersDevice technology has the advantages of stable signal, high accuracy, and good repeatability,

Tengyuanda fixed oxygen alarm

·Suitable for continuous concentration detection in various industrial and special environments
·Adopting the latest semiconductor nano technology, ultra-low power 32-bit microprocessor with up to 24 bit ADC data acquisition chip
·PPM,% VOL, mg/m3 concentration units can be freely switched

Multiple signal outputs

·4-20mA、RS485、0-5V、0-10V、4-20mA+Hart、 discrete signal
·Multiple transmission methods available: 3-4 core cable, fiber optic cable, Ethernet cable, GPRS wireless transmission, RTU wireless transmission
·Multiple data reception methods: user computer, control alarm PLC、DCS、 Mobile phones, tablets, etc

On site sound and light alarm

·On site concentration display and excessive sound and light alarm
·Intrinsic safety circuit design, explosion-proof certification, obtained multiple software copyright patents
·Multiple countries' original imported sensors are selected, with long lifespan and a wide variety of sensors.

2、 Technical parameters:

Gas detection:	oxygenO2 adopts imported ordinary oxygen sensors with a service life of up to 3 years/high-precision oxygen sensors Long service life of up to 5 years .
Measurement range:	010000ppm, 50000ppm, 0-5%, 30%, 100% VOL optional
Resolution:	1ppm（0-50000ppm）； 0.01%VOL（0-100%VOL）
Installation method:	Wall mounted, pipe mounted (thread size: M40X1.5mm), flow-through, and pump suction options are available
Gas expansion:	Supports 1-6 sensors (optional)
Detection accuracy:	≤± 3% or ≤± 1%	Linear error:	≤±1%
Response time:	≤ 20 seconds (T90)	Zero drift:	≤± 1% (F.S/year)
Recovery time:	≤ 20 seconds	Repeatability:	≤±1%
Signal output:	① 4-20mA signal: standard 16 bit precision 4-20mA output chip, transmission distance of 1km ② RS485 signal: using standard MODBUS RTU protocol, transmission distance of 2Km ③ Voltage signal: 0-5V, 0-10V output, customizable ④ Optional 4-20mA+Hart output ⑤ Switching signal: Standard configuration includes 2 sets of relays, optional third set of relays, passive contacts, capacity 220VAC 3A/24VDC 3A
Transmission method:	① Cable transmission: 3-core and 4-core cables for long-distance transmission (1-2 kilometers) ② TCP/IP transmission: Supports TCP/IP protocol, utilizing fiber optic and Ethernet cables for long-distance transmission via internal and external networks (optional) ③ 3G transmission: It can be equipped with a built-in 3G module for real-time remote data transmission, without distance limitations (optional) ④ GPRS transmission: Equipped with a built-in GPRS module, real-time remote data transmission is possible without distance limitations (optional) ⑤ Wireless transmission: Supports 433MHz, wireless radio transmission mode, transmission distance 2-10Km, depending on different power levels (optional)
Receiving device:	User computer, control alarm PLC、DCS、 Mobile phones, tablets, and other optional devices
Alarm settings:	① Standard configuration with two-level alarm, optional three-level alarm ② The gas sensor can be set with two alarm modes: conventional high and low alarm, and interval control, which can control the concentration range of the gas ③ Temperature sensor can set control range ④ Humidity sensor can set control range
Connection method:	3/4 "NPT internal thread, 1/2" NPT internal thread, supporting 2 electrical connection methods simultaneously
Explosion-proof mark:	ExdII CT6	Shell material:	Die cast aluminum+sandblasting oxidation/fluorocarbon paint, explosion-proof and corrosion-resistant
Protection Level:	IP65	Operating Temperature	-30-50 ℃ (customized or optional pre-treatment system required for use in higher temperature and humidity environments)
Working power supply:	24VDC（12～30VDC）	Working humidity:	≤95%RH， No condensation
Size and weight:	200×149×79m（L×W×H） 1.5 Kg (net weight)	working pressure:	0~100Kpa
Standard accessories:	Instruction manual, certificate of conformity, calibration cover
Optional accessories:	① 5 * 8mm hose, drying cylinder, oil-water separator, strong suction pump ② Infrared remote control for remote control of instruments without opening the cover ③ Temperature and humidity sensor, SMS alarm, 3G module, wireless transmission module
Execution standard:	GB3836.1-2010 Explosive Atmosphere Part 1: General Requirements for Equipment GB3836.2-2010 Explosive Atmosphere Part 2: Equipment Protected by Flameproof Enclosures "d"