Model Explanation (330780-A-B)

330780: 11mm XL Series Preamplifier

50: Total system length 5.0m, panel mounting (Panel Mount)

05: Multiple explosion-proof certifications (including ATEX/IECEx/ Chinese explosion-proof), explosion-proof type

Core Parameters (Electrical)

Adapter probe: 3300 XL 11mm (as 330781-50-05)

Sensitivity: 3.94 V/mm (100 mV/mil) ±10%

Linear range: 0.5～4.5 mm (4mm effective linear)

Frequency response: 0～8 kHz

Power supply:

Without safety barrier: -17.5～-26 VDC

With safety barrier: -23～-26 VDC

Output: Gap voltage (proportional to the gap between the probe and the shaft)

Mechanical and Environmental

Installation: Panel mounting (different from 51's DIN rail)

Shell: Cast aluminum, blue

Protection: IP65

Operating temperature: -40℃～+85℃

Explosion-proof: 05=Ex ia IIC T4 Ga (Safety explosion-proof, can be used in hazardous areas)

System Adaptation (5m Explosion-proof Complete Set)

Probe: 330781-50-05 (11mm, 5m, panel, explosion-proof)

Extension cable: 330784-050-11-05 (5m, explosion-proof)

Monitoring module: 3500/42 (shaft vibration), 3500/45 (displacement), etc.

Difference from 330780-50-00

330780-50-00: 5m, panel, no explosion-proof

330780-50-05: 5m, panel, safety explosion-proof (05)

Installation Points

The total system length is strictly 5.0m (probe + cable + internal of preamplifier)

Explosion-proof site requires an intrinsic safety safety barrier, power supply - 23～-26VDC

Shielded wire single-ended grounding (preamplifier side)

For explosion-proof area steam turbines, compressors, fans, etc. shaft vibration/position monitoring.