Bently Nevada 991-25-50-03-01 – 991 Thrust Transmitter

Description

Manufacturer: Bently Nevada
Product No.: 991-25-50-03-01
Product Type: Probe Vibration Transmitter
Made in: U.S.A

Ordering Code Breakdown:
– Model: 991 – Thrust Transmitter
– Range Option: -25 = ±25 mils (±0.6 mm)
– System Length: -50 = 5.0 meters (16.4 feet)
– Mounting: 03 = DIN clips and screws
– Agency Approval: 01 = CSA Division 2

Installation & Power:
This model supports DIN rail mounting. It operates on +12 to +35 Vdc input voltage. Power efficiency ensures consistent signal delivery across long loops.

Technical Details:
– Output: 4-20 mA current signal in 2-wire mode
– Compatible Probe: 3300 NSv non-contacting with extension cable
– Measurement Range: 0.25 to 1.65 mm for probe output
– Signal Accuracy: ±1.5% full scale across a 250 Ω loop
– Loop Resistance Limit: 1,000 Ω including cable at 35 Vdc
– Current Limit: 23 mA typical
– Adjustments: External zero and span controls for simple setup

Environmental Ratings:
– Operating Temp: -35°C to +85°C (-31°F to +185°F)
– Storage Temp: -51°C to +100°C (-60°F to +212°F)
– Unit Weight: 0.43 kg (0.9 lb)
– Shelf Life / Warranty: 1 year

Download PDF file here:991 Thrust Transmitter Datasheet – 141618