Vibro-Meter IQS450 204-450-000-001 A1-B31-H05-I0 Proximity measuring system

Base PN: 204-450-000 001

Suffix A1-B31-H05-I0 Details:

A1: Designed for TQ401-series probes (noncontact, 0–4 mm)

B31: Outputs a 0–10 V DC span (voltage-mode)

H05: Built-in 5 m coaxial cable to the probe

I0: Standard (no intrinsic-safety barrier inside module)

Excitation Voltage: –20 V DC to –32 V DC supply (draw ≈ 13 mA) for TQ401 probe

Probe Span: 0–4 mm (linear over full range)

Output Linearity: ≤ ± 1 % full scale (with matched probe)

Voltage Output (B31): 0–10 V DC proportional to 0–4 mm gap

Output impedance ≈ 500 Ω

Optional Current Mode (B32): 4–20 mA loop (if selected instead of B31)

Drive capability up to 800 Ω load

DC to 20 kHz (–3 dB), capturing both slow positional changes and high-frequency vibration

Operating Temperature: –25 °C to +65 °C

Storage Temperature: –40 °C to +85 °C

Shock: 6 g half-sine, 11 ms (IEC 68-2-27)

Vibration: 5–35 Hz at 0.15 mm; > 35 Hz at 1 g (IEC 68-2-6)

Humidity: Up to 95 % noncondensing

Mounting: Hot-swappable into any VM600 backplane slot

Designed for use in safe areas; pairs with external intrinsic-safety barriers if required for hazardous zones

Supplies stable constant-current drive to a TQ401 probe (0–4 mm), ensuring precise gap sensing.

On-board linearization and temperature compensation guarantee ≤ 1 % nonlinearity over full span.

DC–20 kHz flat response enables simultaneous monitoring of slow shaft position drift and high-frequency vibration.

Resolution better than 1 µm for precise shaft-centerline detection.

Standard 0–10 V DC output (B31) for direct connection to VM600 cards, PLC analog inputs, or data-acquisition systems.

Optional 4–20 mA mode (B32) for long-distance loops or intrinsically safe circuits.

High output drive (up to 800 Ω in current mode) allows flexible wiring.

Monitors probe-to-conditioning continuity: open-circuit or short-circuit conditions drive output to a defined “fault” voltage (e.g., > 10 V) or “fault” current (< 4 mA), triggering immediate alarm.

LED indicator on front panel shows “OK” status vs. fault.

VM600 6 U form factor, hot-swappable under power to minimize downtime.

Conformal-coated PCBs available for high-humidity or corrosive environments.

EMC/EMI immunity per IEC 61000-6-2, emissions per IEC 61000-6-4.

Rear-plane connection to backplane supplies power and raw analog bus for routed signals.

Conditioned 0–10 V output is available on the VM600 Raw Bus—ideal for feeding MPC4 protection cards or CMC16 condition-monitoring cards.

Compatible with VibroSight software via VM600 backplane for trending and diagnostics.

Two TQ401 probes mounted on vertical/horizontal axes of a high-speed turbine bearing feed separate IQS450 modules.

Continuous 0–10 V position outputs go to VM600 MPC4 for fast trip if eccentricity exceeds safe limits.

Operators track subtle shaft drift during startup, preventing rubbing and bearing damage.

In a gas-compression train, a TQ401 probe at the impeller face monitors air-gap clearance.

IQS450’s fast DC–20 kHz response detects sudden gap reductions (indicative of blade rubs or excessive thrust).

Protected by VM600 logic: on gap < 0.5 mm, control system immediately reduces load.