7. FAQ

1. Q: What exactly does model 3500/44M 176449‑03 do?
   A: It measures differential vibration or shaft displacement using two sensors, processes those signals, and provides both trip and alarm outputs to protect rotating machinery.

2. Q: What is its power requirement?
   A: A DC input in the range of 18 to 32 volts is needed to power the module properly.

3. Q: How heavy and large is it?
   A: Its dimensions are approximately 160 mm × 100 mm × 25 mm and it weighs about 0.48 kg.

4. Q: How fast does it act after a fault is detected?
   A: It can generate a trip or alarm in under 10 milliseconds once a preset threshold is exceeded.

5. Q: Is it suitable for harsh environmental conditions?
   A: Yes. It is built to operate between –20 °C and +70 °C, in up to 95 % non‑condensing humidity, and optional variants cover even more extreme cold.

6. Q: Can it continue to protect if one channel fails?
   A: Yes. Dual‑channel redundancy ensures that the failure of one channel does not disable all protection.

7. Q: What types of sensors can be used with it?
   A: Proximity or eddy‑current displacement sensors are supported for sensing vibration or shaft displacement.

8. Q: What outputs does it support?
   A: It provides analog differential outputs and may include digital communication via RS‑485 or a proprietary bus, depending on configuration.

9. Q: Is there self‑diagnostic functionality?
   A: Yes. It performs a self‑test on power‑up, monitors channel health continuously, and provides LED status or diagnostic output.

10. Q: Can it be mounted in standard industrial racks?
    A: Yes. The module is compatible with 19‑inch rack mounting and optionally DIN‑rail mounting, facilitating diverse installation scenarios.