FAQ (10 Q&A)

1. Q: What does the 176449‑02 card do?
   A: It’s the front card responsible for sensor input conditioning—handling multiple transducer types and preprocessing signals before measurement.

2. Q: And the 135489‑01 card?
   A: Rear‑slot I/O with internal safety barriers and terminations, it manages alarm relay connections and communication with the rack backplane.

3. Q: Are these modules hot‑swappable?
   A: Yes—both front and rear cards can be removed or inserted while the system remains live, preserving uptime.

4. Q: What measurement parameters are supported?
   A: Offered: radial vibration, axial displacement, velocity, acceleration, eccentricity, differential expansion, shaft absolute, circular acceptance, and REBAM bearing analysis.

5. Q: How precise are the measurements?
   A: Typically within ±0.33 % of full scale, with a maximum error of ±1 %.

6. Q: What filtering capabilities are built in?
   A: User‑programmable low‑, high‑, and band‑pass filters (0.09–4 kHz), vector filters (1X/2X), and REBAM‑specific filters.

7. Q: What outputs does this module provide?
   A: Buffered outputs (≈ 550 Ω), dual 4–20 mA loops per channel, relay alarms, and digital comms via rack backplane.

8. Q: What are the environmental specs?
   A: Front card: ~0 °C to +65 °C operating; rear card with barriers similar. Designed for industrial hazard‑zone safety.

9. Q: What are the physical dimensions and weight?
   A: Front: ~241 × 24 × 242 mm, ~0.9 kg. Rear: ~241 × 24 × 163 mm, ~0.46 kg.

10. Q: What power does the module use?
    A: Powered from the rack’s 24 V DC bus, consuming roughly 7.7 W typical.