YJJ Altair 4XR Front Cover Motherboard Circuit Board for Repair Parts of

Product Specification

Product Description:

YJJ Altair 4XR Front Cover Motherboard Circuit Board for Repair Parts of Portable Gas Detectors

Features:

I. Basic Adaptation Parameters
Adaptation for the entire machine: MSA Altair 4XR (Second Generation 4XR) Four-in-One Bluetooth Portable Multi-Gas Detector
Original Factory Part Code: Motherboard Assembly 10211186, Front Shell Component 10211185
Supported Sensor Channels: 4 X-Cell Intelligent Sensor Slots, General Gas: H2S, CO, O2, LEL Combustible Gas; Replaceable SO2, NO2, etc. Toxic Gas Probes
Built-in Bluetooth 5.0 Module, Supports Remote Viewing of Gas Data, Alarm Push, Equipment Calibration
II. Detailed Hardware Specifications of the Motherboard
Main Control Chip: Industrial-grade low-power MCU, Responsible for Digital Signal Reading of X-Cell Intelligent Sensors, AD Calculation, Concentration Conversion
Display Interface: Compatible with High-Definition LCD Screen, Backlight Driver Circuit
Alarm Driving Circuit: Three Alarm Outputs (>95dB Beeper Alarm, Four-corner Highlight LED Warning Lights, Vibration Motor); Native Support for Fall Alarm, One-key Emergency Alarm Hardware Trigger
Storage Chip: Stores Calibration Parameters, TWA-STEL Time-Weighted Alarm Thresholds, 500 Event Logs, 50 Hours of Gas History Record
Power Supply Circuit: Compatible with Special Rechargeable Lithium-Ion Battery, Full Charge Battery Life 24 Hours, Charging Control, Low Voltage Alarm
External Ports: Charging Contact, Infrared Calibration Communication Interface, Sensor Base Cable, Key Pad Cable
Explosion-proof Rating: Ex ia IIC T4 Ga Intrinsically Safe Explosion-proof
Operating Environment Parameters
Operating Temperature: -40℃ ~ +60℃
Applicable Humidity: 15-90% RH, No Condensation
Whole Machine Protection: IP68 (2-meter water immersion for 1 hour), The motherboard is integrated inside the front shell for waterproof sealing treatment
III. Core Functions Integrated in the Motherboard
Power-on Full Machine Self-Check: Hardware Detection of Sensor Faults, Battery Voltage, Speaker, Vibration, LED Indicator Lights
Real-time 4-Gas Concentration Calculation, Real-time Numerical Values, Curve Graph Display on Screen
Occupational Safety Algorithms: TWA Time-Weighted Average Value, STEL Short-Term Exposure Limit Value, Over-limit Locking Alarm
Fall Alarm: Automatically Trigger Alarm for Long-Time Stationary Personnel; Instant-Alert One-Key Emergency Assistance
Bluetooth Wireless Networking: Connect to MSA Altair-Connect Mobile Software, Remote Monitoring, Equipment Parameter Configuration
Sensor Life Recognition, Zero Point Calibration, Gas Calibration, Fault Code Storage
Event Records: Store Alarm Records, Startup Records, Calibration Logs, Fault Records
IV. Introduction of Front Shell Components
The front shell is a high-strength polycarbonate + rubber composite shell, with the motherboard fixed inside the front shell cavity
Resistant to 7.5-meter high-altitude drop impact
Equipped with waterproof sealing gasket for the display, physical operation keys, sensor intake window
V. Main Applications
1. Equipment Maintenance Replacement Parts
When the detector fails to start, the motherboard burns out, the signal reading is abnormal, the Bluetooth is damaged, calibration is impossible, or the keys fail, directly replace the entire front shell motherboard assembly, eliminating the need to repair scattered components, making maintenance convenient and efficient.
2. Whole Machine Signal Main Control Center
Collects digital signals from X-Cell Intelligent Sensors, processes hydrogen sulfide, carbon monoxide, oxygen, combustible gas concentrations, controls the screen, alarms, Bluetooth communication, data storage.
3. Customized Accessories
Used for instrument refurbishment, repair of second-hand detectors, development of gas detection equipment modules
VI. Sensor Range Adaptation
H2S: 0-200 ppm
CO: 0-1999 ppm
O2: 0-30% VOL
LEL: 0-100% LEL

Specifications: