YJJ MSA ALTAIR 4XR Back Cover Motherboard Battery Assembly for Multi Gas Detector Repair Parts

Product Description:

YJJ MSA ALTAIR 4XR Back Cover Motherboard Battery Assembly for MultiGas Detector Repair Parts

Features:

I. Basic Technical Specifications of the Entire Machine

1. Gas Detection Specifications (Main Board Compatible Sensors)

Standard configuration: four channels, freely selectable probes: O₂, H₂S, CO, LEL combustible gas; also available for replacement with NO₂, SO₂ sensors

Oxygen O₂: 0 - 30% VOL, alarm at 19.5% hypoxia, 23.5% hyperoxia

Sulfur Dioxide H₂S: 0 - 100 ppm

Carbon Monoxide CO: 0 - 500 ppm

Combustible Gas LEL: 0 - 100% LEL

Sensor Type: MSA X-Series intelligent electrochemical sensor, regular lifespan over 4 years, identification chip directly connects to the main board to automatically identify probe model and store calibration records

2. Main Control Hardware Specifications of the Main Board

Built-in Bluetooth 4.2 wireless module, supports remote reading via mobile phone APP, alarm push, parameter setting, calibration record download

Internal Storage: can store 120 days of gas logs, alarm records, drop alarm events

Functions: fall alarm, emergency one-click call for help, infrared data transmission, fault self-check, sensor fault identification

Keyboards integrated on the main board: charging contact, sensor slot, buzzer, vibration motor, display cable connector

Explosion-proof grade: Ex ia IIC T4, safe explosion-proof, can operate with electricity in flammable and explosive environments

3. Lithium Battery Component Specifications

Built-in rechargeable lithium battery module (battery compartment integrated into the rear cover)

Continuous working time: 16 hours with full charge, approximately 12 - 13 hours with Bluetooth enabled

Charging time: 3 - 4 hours to fully charge; supports original base charging

Battery protection board integrates overcharge, overdischarge, short circuit, overtemperature protection; the main board reads battery voltage and remaining capacity

4. Rear Cover Assembly Specifications

Protection grade IP68, can be submerged underwater for 45 minutes; waterproof and dustproof

Drop resistance standard: withstands a 7.5-meter drop from a height and 25 hard surface drops

Material: high-strength wear-resistant engineering plastic; optional night light fluorescent rear cover, facilitating instrument search in dim and enclosed spaces

Rear cover integrates battery compartment latch, sensor ventilation holes, hooking position, charging interface sealing gasket

II. Individual Functions of the Three-Component Set (Rear Cover - Battery - Main Board)

1. Main Control Board (Central Processing Unit of the Entire Machine)

Receives weak current signals from 4 gas sensors, calculates and converts gas concentration

Controls screen, sound, light, and vibration three-level alarms

Manages lithium battery charging and discharging, battery capacity detection

Bluetooth communication, data log storage, instrument calibration, fault self-check

Identifies X-series intelligent sensors and automatically loads sensor parameters

2. Built-in Lithium Battery Module

Provides continuous power supply for the main board, sensors, screen, Bluetooth, alarm; it is a consumable accessory, and its standby time will be shortened after aging, requiring a complete set replacement.

3. Instrument Rear Cover

Carries and fixes the main board, battery module, sensor base, waterproof gasket; serves as a waterproof, shock-resistant, dustproof, and mechanical protection function. If cracked or the gasket ages and gets water, the rear cover assembly needs to be replaced.

III. Main Applications of the Entire Machine

1. Restricted Space Operations Detection (Core Scenario)

Underwater channels, storage tanks, ship cabins, pits, cellars, pipe shafts; before operation, detect hypoxia, toxic gases, combustible and explosive gases. If the oxygen or toxic gas exceeds the limit, trigger an alarm and prohibit personnel from entering

2. Industrial Inspection

Daily inspection of petroleum and petrochemical plants, gas stations, chemical plants, sewage treatment plants, mines, metallurgical workshops; check for hydrogen sulfide, carbon monoxide, and combustible gas leaks in pipelines and valves

3. Emergency Rescue

Firefighting repair, toxic and harmful gas detection at accident scenes; fall alarm function, if personnel faint, the instrument automatically sends an alarm notification to companions

4. Remote Monitoring of Enclosed Spaces

Turn on Bluetooth, safety officer's mobile phone can view the gas readings of the instruments in the underground and cabin areas in real time, and receive alarm messages when the concentration exceeds the limit

IV. Applicable Situations for Accessories Replacement Motherboard: The instrument cannot be powered on, Bluetooth malfunction, sensor channel damage, motherboard water ingress and corrosion, screen connector seat damage

Battery: Battery life drastically decreases, charging abnormality, battery bulging

Back cover: Shell shattered, waterproof gasket aged and leaking water, latch broken, breathable film damaged

Specifications: