I. Basic Product Information

• Brand and Manufacturer: From the well-known MTL Instruments, a company with profound technical accumulation and a good reputation in the field of industrial automation and safety-related products, dedicated to providing high-quality, reliable products and solutions for industrial customers worldwide.
• Product Positioning: As a member of the MTL5500 series, the MTL5513 is an isolated safety barrier. Its core function is to build a reliable electrical isolation barrier between hazardous areas and safe areas, ensuring the safe transmission and control of signals while preventing potential energy in hazardous areas from causing safety accidents such as explosions.
• Number of Channels: Features a dual-channel design, which means it can simultaneously process two input signals from hazardous areas and control two solid-state outputs in safe areas respectively. This greatly improves the device's integration and work efficiency, making it suitable for complex industrial environments that require simultaneous monitoring and control of multiple signal sources.

II. Functional Features

Support for Hazardous Area Signal Input

• Switch Application Scenarios: Can be adapted to switches installed in Zone 0, IIC Group, T6 hazardous areas, and Div.1, Group A hazardous locations. In these hazardous areas, such as petrochemical production workshops where flammable and explosive gases or dust exist, the MTL5513 can safely and stably receive signals from switches in these hazardous environments.
• Proximity Detector Application Scenarios: For properly certified proximity detectors, it can be used in Zone 0, IIC Group, T4-T6 hazardous areas, and Div.1, Group A hazardous locations. For example, in some automated production lines, proximity detectors are needed to detect the approach or departure of objects, and the MTL5513 can accurately acquire and process these signals. Its hazardous area input complies with the BS EN 60947-5-6:2001 standard, and is particularly suitable for NAMUR-standard proximity detectors, ensuring the standardization and compatibility of input signals.

Output Characteristics

• Transistor Output: The output transistors of CH1/CH2 share a common terminal and can flexibly switch between positive (+ve) or negative (-ve) polarity signals. This design allows it to be easily connected to different types of loads or subsequent control circuits, greatly enhancing the device's versatility and adaptability. It can easily drive relays, indicator lights, or provide control signals for other electronic devices.
• Output Phase Inversion Function: Each output channel is equipped with an independent switch, through which the output phase inversion function can be realized. This feature is very practical in practical applications. For example, when the wiring method or signal logic of on-site equipment is inconsistent with expectations, the logic relationship of the output signal can be quickly adjusted by simply setting the output phase inversion switch, without the need for rewiring or changing the settings of other equipment, which greatly saves debugging and maintenance time and costs.
• Line Fault Detection (LFD) Function: The line fault detection function is also enabled through the independent switch of each output channel. This function can real-time monitor the status of the input line, and immediately respond once a line fault (such as open circuit or short circuit) is detected. There is an LFD indicator light on the top of the module; when a line fault is detected, the indicator light will turn on, intuitively prompting the operator of the fault information. If the LFD function is enabled, when using contact input, a 500Ω to 1kΩ resistor must be connected in series, and a 20kΩ to 25kΩ resistor in parallel to ensure the accuracy and stability of detection.

III. Technical Parameters

Power Supply-Related Parameters

• Power Supply Voltage Range: Can adapt to DC power input of 20V to 35V. This wide power supply voltage range enables it to work stably in different industrial power environments, whether in conventional industrial sites with relatively stable power supply or special application scenarios where power conditions may have certain fluctuations.
• Current Consumption: The current consumption varies under different power supply voltages. The maximum current consumption is 40mA at 20V, 35mA at 24V, and 25mA at 35V. Low current consumption means low power consumption of the device, which is not only energy-saving and environmentally friendly but also has obvious advantages in some applications with strict power consumption restrictions.
• Maximum Power Consumption: The maximum power consumption is 0.75W at 24V and 0.8W at 35V. The low-power design helps reduce device heat generation, improve the stability and reliability of the device, and extend the service life of the device.

Safety Parameters

• Isolation Characteristics: 250V AC or DC insulation is realized between the power supply, hazardous area circuits, and relay outputs. This high-strength electrical isolation can effectively prevent high-energy signals in hazardous areas from entering safe areas, protect the safety of personnel and equipment, and ensure the stability and accuracy of signal transmission.
• Intrinsically Safe Parameters: The maximum safe voltage of each channel is 10.5V, and the maximum safe current is 14mA, which meets the intrinsically safe requirements. This allows the MTL5513 to limit the released energy within a safe range even if an electrical fault occurs when used in hazardous areas, without causing combustion or explosion of surrounding flammable and explosive substances.

Operating Environment Parameters

• Temperature Range: Can work normally in an ambient temperature range of -20°C to +60°C. This wide temperature adaptation range makes it suitable for various industrial environments, whether in outdoor operations in cold northern regions, hot southern factory workshops, or special industrial scenarios with harsh temperature requirements (such as near high-temperature chemical reaction kettles, low-temperature cold storage, etc.), the MTL5513 can operate stably.
• Protection Level: Reaches IP20 protection level, which can effectively prevent the intrusion of solid foreign objects with a diameter greater than 12.5mm (such as fingers or large tools), protect the internal circuit from accidental touch or damage by foreign objects, and ensure the safety and reliability of the device during normal use.

IV. Installation and Maintenance

• Installation Method: Adopts the standard DIN rail mounting method, which is simple and convenient—just snap the module into the DIN rail to complete the fixation. At the same time, its terminals adopt a pluggable design; when connecting signal cables and power cables, no complex tools or operations are required, and direct plugging and unplugging can be done. This not only greatly simplifies the installation process, reduces installation time and workload, but also facilitates the disassembly, replacement, or rewiring of the module during later maintenance or equipment upgrades.
• Maintenance Points: Since the MTL5513 works in industrial environments that may be hazardous, regular maintenance is crucial. It is necessary to regularly check the appearance of the module for physical damage, signs of overheating, or corrosion; check whether the connecting cables are firm, and whether there is looseness, damage, or aging; pay attention to the LFD indicator light and other status indicator lights on the top of the module—if abnormal lighting or flashing is found, the cause of the fault should be checked and eliminated in a timely manner. During maintenance operations, relevant safety operating procedures must be followed: first cut off the power supply to ensure operation under safe conditions, and prevent safety accidents caused by misoperation.