Metso D202593

Technical Specifications

• Channel Quantity: 8 isolated analog input channels
• Input Signal Types: 4–20mA DC current, 0–10V DC voltage, Pt100 RTD, K/T/J thermocouple
• Isolation Rating: 2500V AC channel-to-backplane galvanic isolation
• Resolution: 16-bit A/D conversion resolution
• Sampling Rate: 10Hz per channel synchronous sampling
• Power Supply: 24V DC ±10% system backplane power, power consumption 4.2W maximum
• Operating Temperature Range: -25°C ~ +75°C
• Storage Temperature Range: -40°C ~ +85°C
• Relative Humidity: 5%–95% non-condensing
• EMC Compliance: IEC 61000-6-2 industrial immunity standard

Functional Features

1. Hardware optocoupler isolation eliminates ground loop interference from multi-point field grounding
2. Built-in cold junction compensation for thermocouple input channels
3. Overvoltage, overcurrent and reverse polarity protection for all input terminals
4. Channel independent fault diagnostic circuit for open-circuit sensor detection
5. Backplane bus hot-plug compatible with Metso D2000 rack system
6. Onboard LED status indicator for power, communication and individual channel fault

Performance Parameters

• Measurement Accuracy: ±0.15% full scale for voltage/current input; ±0.3°C for Pt100 RTD
• Response Time: ≤150ms full channel refresh cycle
• Thermal Drift: ≤50ppm/°C across full operating temperature band
• Long-term Stability: ≤0.05% full scale annual drift

Material Composition

• Main PCB Substrate: FR-4 high-Tg flame retardant fiberglass laminate
• Enclosure Housing: Black flame-retardant ABS plastic UL94-V0 rated
• Terminal Block Contacts: Nickel-plated copper alloy
• Internal Isolation Components: High linearity silicon optocoupler, precision metal foil resistors

Structural Characteristics

• Standard 4HP Eurocard rack mounting dimension
• Single-row spring terminal block for field wiring connection
• Backplane gold-plated edge connector for system bus communication
• Integrated passive heat dissipation rib structure without auxiliary cooling fan

Working Principle

Advantage Highlights

1. Wide temperature tolerance adapts to uninsulated factory cabinet environments
2. High isolation strength avoids damage from transient surge voltage in mining heavy industry
3. Unified D2000 rack mechanical dimension enables mixed installation with digital I/O, counter and communication modules
4. Zero mechanical wear solid-state circuit reduces routine maintenance frequency
5. Full channel independent protection prevents single channel failure from crashing entire module

Applicable Industries

Installation Requirements

1. Install inside standard Metso D2000 series 19-inch industrial control rack
2. Maintain minimum 20mm vertical ventilation gap between adjacent modules
3. Wiring torque for terminal screws fixed at 0.6–0.8 N·m
4. Separate analog signal wiring from high-power AC cable by minimum 15cm distance
5. Rack grounding bus connected to factory equipotential grounding grid with 4mm² copper conductor

Usage Precautions

1. Do not apply voltage exceeding 30V DC to any analog input channel
2. Avoid direct module exposure to corrosive chemical vapor and mineral dust accumulation
3. Conduct full channel calibration every 12 months to maintain measurement precision
4. Cut off rack backplane power before hot swapping module hardware
5. Prevent condensation inside cabinet by maintaining internal temperature above dew point