Description
Product Overview
D136-004-001 is an industrial analog signal terminal board widely deployed for turbine and generator control systems. It provides field wiring termination, signal filtering and surge protection for analog 4–20mA transmitters, RTD temperature sensors and ±10V transducer signals. The board routes conditioned field signals to the main controller acquisition card. It is commonly used in power plant turbine control and auxiliary monitoring systems and serves as legacy aftermarket spare for control rack maintenance and retrofit.
Technical Specifications
| Parameter | Details |
|---|---|
| Part Number | D136-004-001 |
| Brand | Industrial Control Spare |
| Type | Analog Input Terminal Board |
| Signal Type | 4–20mA, 0–10V, RTD temperature inputs |
| Number of Channels | 4 analog input channels |
| Surge Protection | Onboard transient suppression for field wiring surges |
| Isolation | Channel-to-backplane galvanic isolation |
| Supply | Powered by control rack backplane 24V DC |
| Power Consumption | Max 2.2W |
| Operating Temperature | -20°C ~ +60°C |
| Storage Temperature | -40°C ~ +70°C |
| Humidity | 5~95% RH, non-condensing |
| Mounting | Plug-in card for industrial control rack |
| Net Weight | ~0.36 kg |
| Certifications | CE |
| Product Status | OEM discontinued, aftermarket legacy spare |
Key Features
- 4-channel analog signal termination board for connecting field transmitters and temperature sensors
- Built-in RC filtering and surge suppression to reduce noise and transient damage
- Galvanic isolation protects the main control I/O from field ground loop interference
- Screw terminal blocks for simple field wiring and convenient loop testing
- Onboard channel diagnostics for open-circuit and short-circuit fault detection
- Front panel LED indicators for power and channel fault status
- Conformal coated PCB option for dusty, high-vibration power plant cabinet environments
Installation & Testing Notes
- Insert D136-004-001 into the designated slot inside the control rack
- Wire field analog sensors and transmitters to screw terminals following system loop drawings
- Verify 24V DC rack supply and protective grounding before energizing field circuits
- After power-up, check front LED indicators and run system diagnostic scan
- Perform loop calibration test on each analog channel to validate measurement accuracy
- This board does NOT support hot swap. Rack control power must be fully isolated before removal
- After replacement, confirm live process values on control HMI
- Inspect terminal screw tightness regularly in high vibration turbine cabinet environments
FAQ
Q: What is D136-004-001? A: It is a 4-channel analog input terminal board for turbine/generator control systems.
Q: What signals can it process? A: 4–20mA, 0–10V analog signals and RTD temperature sensor signals.
Q: Is D136-004-001 hot swappable? A: No, rack control power needs to be shut down before installing or removing the board.
Q: What protection features does it have? A: Surge suppression, signal filtering and galvanic isolation against ground loops.
Q: Main application scenario? A: Power plant gas/steam turbine control and auxiliary equipment monitoring loops.


