FAQ (10 Q&A)

1. Q: What role does the 176449‑02 front card play?
   A: It processes inputs from displacement, velocity, and acceleration sensors—filtering and shaping signals to detect vibration, motion, and structural behaviors.

2. Q: And the 138708‑01 rear card?
   A: It supplies isolated field wiring, alarm relay routing, and communicates data to the rack backplane—all while providing safety barrier protection.

3. Q: Is the module serviceable while running?
   A: Yes—it supports hot swapping of both front and rear cards without shutting down the machinery monitoring system.

4. Q: What measurements can it capture?
   A: It can monitor vibration, axial displacement, expansion, acceleration, velocity, and detect bearing issues via REBAM.

5. Q: How accurate is its signal capture?
   A: Accuracy is typically ±0.33 % of full scale, at worst ±1 %.

6. Q: What filter types are available?
   A: Programmable filters include low‑, high-, and band‑pass ranging 0.09 Hz–4 kHz, plus vector (1X/2X) and REBAM filters.

7. Q: What outputs are available?
   A: Outputs include buffered sensor outputs, dual 4–20 mA channels per input, alarm relays, and rack-based digital communication.

8. Q: What environmental conditions can it handle?
   A: The front card works from 0 °C to +65 °C; the rear card matches that while maintaining safety barrier integrity—designed for tough industrial and hazardous settings.

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

10. Q: How much power does it draw, and what supply?
    A: Powered by the 24 V DC rack, it consumes approximately 7.7 W in normal operation.