Description

Manufacturer: Bently Nevada

Product No.: 991-06-50-01-01

Product Type: Probe Vibration Transmitter

Country of Origin: Made in U.S.A

Model: 991 – Thrust Transmitter

Full-Scale Option: 06 = ±0.6 mm

Length Option: -50 = 5.0 m (16.4 ft)

Mounting: 01 = 35 mm DIN-rail clips

Agency Approval: 01 = CSA Division 2

Shelf Life: 1 year

Output: 4-20 mA loop, 2-wire

Use: Axial (thrust) monitoring

Power Supply: +12 to +35 Vdc

Probe Input: 3300 NSv proximity probe with extension cable

Prox Out Range: 0.25 mm to 1.65 mm

Loop Range: Supports 0.6-0-0.6 mm or 25-0-25 mils

Accuracy: ±1.5% over full scale (250 Ω load)

Max Loop Resistance: 1,000 Ω at 35 Vdc

Current Limit: 23 mA (typical)

Adjustments: External zero and span

Fault Handling:

  • Signal drops below 3.6 mA in 100 µs during fault
  • Signal restores in 0.1 seconds after recovery

Temperature Range:

  • Operating: -35°C to +85°C (-31°F to +185°F)
  • Storage: -51°C to +100°C (-60°F to +212°F)

Weight: 0.43 kg (0.9 lb)

Key Benefits:

  • Quick response to fault signals
  • Stable current loop output
  • Certified for CSA Div 2 zones
  • DIN clip mount for fast setup

Download PDF file here:991 Thrust Transmitter Datasheet – 141618

Additional information

Weight0.82 kg
Dimensions15 × 7 × 6 cm

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