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GE DS3800HXRC
- Product Name: GE Speedtronic Mark V High-Speed Rate / Comparator Board (Extended Temperature)
- Product Overview: An I/O module providing 8 high-speed pulse input channels with rate-of-change measurement and comparator outputs for rate-based alarms and trips in extreme-temperature environments.
- Technical Specifications:
- Series: GE Speedtronic Mark V
Detailed content
- Technical Specifications:
- Series: GE Speedtronic Mark V
- Pulse Input Channels: 8 (differential or single-ended)
- Input Frequency: 0–10 kHz (field-configurable)
- Input Logic Level: 24 V DC (sinking/sourcing)
- Input Impedance: 10 kΩ typical
- Counter Resolution: 32-bit (up to 2³² counts)
- Rate Measurement: 0.01 Hz/s resolution
- Comparator Outputs: 8 solid-state (24 V DC, 0.5 A max)
- Comparator Setpoints: Programmable, 0–10,000 Hz/s per channel
- Comparator Response: <1 ms at threshold exceedance
- Optical Isolation: 2500 V AC per channel
- Features: Built-in debounce filtering, programmable threshold levels
- Extended Temperature Range: –40°C to +85°C
- Functional Features: Continuously calculates rate-of-change on each channel and fires the corresponding comparator output when the programmed setpoint is exceeded; suitable for overspeed protection, flow rate alarms, and process rate monitoring.
- Application Scenarios: Turbine overspeed protection, flow-rate alarming, and process rate monitoring in hot, cold, or outdoor cabinets where standard boards experience thermal drift.
- Installation & Use Notes: Verify the firmware version (must match the documented configuration). Record and replicate all DIP switch positions on SW1, SW2, and SW4. Program comparator setpoints per channel—do not assume defaults will be downloaded from the CPU. Photograph all jumper positions before replacement.
