Introduction

Miner Intrinsically Safe Infrared Receiver addresses weak infrared signal reception and compliance challenges in high-risk mines, providing reliable operation in high methane and coal dust conditions.

Main Technical Specifications

POWER SUPPLY
• Operating voltage: DC 12V;
• Operating current: ≤30mA;

Receiving Distance
(0 to 10) m.

OUTPUT SIGNAL
Receives infrared signals from the transmitter and transmits high/low level signals to the host. High level ≥6V, low level ≤0.5V.

Features

High Sensitivity
Photoreceivers detect weak infrared signals in the 500–1000nm range, ensuring reliable operation in high-risk mining environments.

Long Range
Provides reliable signal reception up to 80 meters, covering larger areas with fewer base stations.

Stable Decoding
Quickly decodes signals under high interference, maintaining continuous operation and reducing downtime.

Fault Analysis And Troubleshooting (See Table 1)

Fault Phenomenon	Possible Cause(s)	Troubleshooting Method
No output signal at K terminal	1. Probes not aligned properly	Realign probes
	2. Circuit board damp or water ingress	Replace circuit board
	3. Receiver cable broken	Repair or replace cable
	4. Receiver not powered	Check and restore power supply
K terminal continuously outputs low-level signal	Transmission cable short-circuited or water ingress	Check and rectify the issue

Environmental Conditions For Use

The device shall operate normally under the following conditions:
a) Ambient temperature: 0°C to 40°C;
b) Average relative humidity: ≤95% RH (at 25°C);
c) Atmospheric pressure: 80 kPa to 106 kPa;
d) Environments in coal mines with risks of methane and coal dust explosions;
e) Locations without strong vibration or impact;
f) Locations without corrosive gases that damage metals or insulating materials;
g) Locations free from water dripping.

Customization Services

Detection Range
Adjustable signal reception distance for different tunnel lengths.

Wavelength Sensitivity
Calibration for specific infrared wavelengths as required.

Housing
Modular or reinforced casings for fixed or portable installations.

Calibration Profiles
Pre-set or locally adjustable according to operational needs.

Calibration & Support

Overseas Service Network
Five core mining regions equipped with calibration stations for fast support.

24/7 Remote Assistance
Multi-language guidance for diagnostics, calibration, and troubleshooting.

Fast Spare Part Delivery
Critical components available in local warehouses; cross-border delivery ≤72 hours.

Local Certification & Training
On-site training ensures proper calibration, maintenance, and compliance documentation.

Certifications

All devices hold IECEx intrinsic safety certification, mining safety approval, explosion-proof compliance, and CCC certification.

FAQ

Q: How is the device installed in underground mines?

A: Designed for easy mounting on walls or ceilings with standard brackets; minimal drilling and adjustment required.

Q: Can multiple receivers be used together in a network?

A: Yes, multiple units can be deployed for full coverage; signal interference between units is minimized by design.

Q: How does the device handle extreme underground conditions?

A: Fully sealed casing protects against dust, moisture, and temperature variations, ensuring long-term stable operation.

Q: Are firmware or software updates required?

A: Updates are optional; when needed, they can be applied remotely or locally without disrupting operations.

Q: What spare parts are critical for maintenance?

A: Photoreceivers, decoding modules, and connectors are the primary components; all are stocked for rapid replacement.

Q: Is the device compatible with remote monitoring systems?

A: Yes, output signals can integrate with most mine monitoring or control platforms.

Q: Does the device require special power supply?

A: Standard mine voltage ranges are supported; no specialized power equipment is needed for installation.

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