---
title: "Gauge Cluster"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:GAUGE_CLUSTER"
  data_integrity_hash: "d773f65dbd1ad653875fc18ce81aa729"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:GAUGE_CLUSTER"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/gauge-cluster.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/gauge-cluster"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 km/h speedometer, 0-8000 rpm tachometer, 0-120°C coolant temperature, 0-5 bar oil pressure"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 85
    unit: "°C"
    consequence: "Thermal expansion mismatch between LCD glass (CTE 3.2×10⁻⁶/K) and silicon TFT (CTE 2.6×10⁻⁶/K) causing delamination at ΔT&gt;60K"
fmea_matrix_quantitative:
  - node_1:
      trigger: "CAN bus voltage transient exceeding 40V for 100μs"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "TVS diode clamping at 28V with 600W peak pulse power rating"
  - node_2:
      trigger: "PWM dimming circuit operating at 120Hz with 95% duty cycle"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Constant current drivers with 350mA limit and NTC thermal foldback at 110°C"
bom_nodes:
  speedometer:
    type: "part"
    urn: "URN:CNFX:ME:SPEEDOMETER"
    interface_type: "physical-logic-coupled"
  tachometer:
    type: "part"
    urn: "URN:CNFX:ME:TACHOMETER"
    interface_type: "physical-logic-coupled"
  fuel-gauge:
    type: "component"
    urn: "URN:CNFX:ME:FUEL_GAUGE"
    interface_type: "physical-logic-coupled"
  temperature-gauge:
    type: "part"
    urn: "URN:CNFX:ME:TEMPERATURE_GAUGE"
    interface_type: "physical-logic-coupled"
  warning-light-array:
    type: "part"
    urn: "URN:CNFX:ME:WARNING_LIGHT_ARRAY"
    interface_type: "physical-logic-coupled"
  odometertrip-computer:
    type: "part"
    urn: "URN:CNFX:ME:ODOMETERTRIP_COMPUTER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ISO 13485:2016 - MEDICAL DEVICES QUALITY MANAGEMENT"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/gauge-cluster.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "40df4afc5c32ed21a7cf112694fd35373aa664ba19e95eb778a15dbeae08eb2d"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Gauge Cluster

## 1. Technical Definition
A collection of instruments and indicators mounted together to display vehicle operational data to the driver.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 km/h speedometer, 0-8000 rpm tachometer, 0-120°C coolant temperature, 0-5 bar oil pressure**. Failure boundary: **LCD pixel failure at 85°C junction temperature, stepper motor failure at 125°C winding temperature, backlight LED failure at 150°C junction temperature**, Mechanism: **Thermal expansion mismatch between LCD glass (CTE 3.2×10⁻⁶/K) and silicon TFT (CTE 2.6×10⁻⁶/K) causing delamination at ΔT&gt;60K**.

### 2.1 Analytical Physics Model
Governed by the **Combined Measurement Uncertainty**:

> **Primary Equation**: $u_c = \sqrt{\sum u_i^2}$  
> **Engineering Impact**: Defines the precision confidence interval for inspection.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| u_i | Standard Uncertainty components | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| CAN bus voltage transient exceeding 40V for 100μs | 8 | Microcontroller latch-up destroying I/O pins | TVS diode clamping at 28V with 600W peak pulse power rating |
| PWM dimming circuit operating at 120Hz with 95% duty cycle | 8 | LED thermal runaway reaching 180°C junction temperature | Constant current drivers with 350mA limit and NTC thermal foldback at 110°C |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Speedometer](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/speedometer.md) `(Standalone System)`
- [Tachometer](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/tachometer.md) `(Standalone System)`
- [Temperature Gauge](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/temperature-gauge.md) `(Standalone System)`
- [Warning Light Array](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/warning-light-array.md) `(Standalone System)`
- [Odometer/Trip Computer](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/odometertrip-computer.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Automated Assembly Line**, **Calibration Test Bench**, **Electrostatic Discharge (ESD) Protection System**  
**Downstream Applications**: Passenger Vehicles, Commercial Trucks, Motorcycles  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in gauge cluster construction?
**A**: Our gauge clusters are built with durable ABS plastic housings, polycarbonate lenses for clarity, steel mounting brackets, and copper alloy electrical components for reliable performance.

### Q: What instruments are included in a standard gauge cluster?
**A**: A standard cluster includes a speedometer, tachometer, fuel gauge, temperature gauge, odometer/trip computer, and a comprehensive warning light array for vehicle system monitoring.

### Q: Are gauge clusters compatible with different vehicle models?
**A**: Yes, gauge clusters are designed for specific vehicle makes and models to ensure proper fitment, electrical compatibility, and accurate sensor readings. Custom configurations are available for specialized applications.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- ISO 13485:2016 - MEDICAL DEVICES QUALITY MANAGEMENT

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Gauge Cluster](https://cnfx.com/industry/motor-vehicle-manufacturing/product/gauge-cluster)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **6** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: GAUGE_CLUSTER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 732e886b
