Bently Nevada 990-05-50-01-CN 990 Vibration Transmitter

Availability: 10 left in stock

Configured for proximity signal conditioning and 4-20 mA current loop execution in machinery protection architectures, the Bently Nevada 990-05-50-01-CN (990...

SKU: 990-05-50-01-CN

Manufacturer: Bently Nevada
Product No.: 990-05-50-01-CN
Product Type: Vibration Transmitters
Product Origin: USA
Payment:T/T, Western Union
Weight: 1500g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Configured for proximity signal conditioning and 4-20 mA current loop execution in machinery protection architectures, the Bently Nevada 990-05-50-01-CN (990 Vibration Transmitter) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

Option Code	Option Description	Technical Definition
990	Base Model	2-Wire Vibration Transmitter
-05	Full-Scale Option	0-5 mils pp (0-100 um pp) displacement measurement range
-50	System Length Option	5.0 metres (16.4 feet) total system length matching probe cable
-01	Mounting Option	35 mm DIN rail clips integrated
-CN	Agency Approval Option	Country-specific certification approvals for China region

Hardware Specifications

Parameter	Specification
Model	990-05-50-01-CN
Brand	Bently Nevada
Origin	USA
Product Type	Vibration Transmitters
Full-Scale Range	0-5 mils pp (0-100 um pp)
System Length	5.0 metres (16.4 feet)
Mounting Interface	35 mm DIN rail clips
Probe Materials	PPS tip, AISI 303/304 SST case, 75 ohm FEP coaxial cable
Tensile Strength	222 N (50 lbf) maximum (probe case to lead)
Agency Approval	CN country-specific approvals
Operating Temp	Extended field transmitter temperature rating
Dimensions	Standard 990 DIN-mount module housing profile
Weight	0.82 kg (Net) / 2.0 kg (Shipping)
Power Consumption	Loop-powered via 4-20 mA current output loop

Gap Voltage Validation (-10 VDC Targets) & Rotor Dynamics

The transmitter excitation circuit drives the connected 75 ohm coaxial probe system, converting dynamic gap variation into a continuous 4-20 mA output signal proportional to peak-to-peak vibration amplitude. Commissioning requires gap voltage validation to ensure the probe tip is installed at the designated physical offset, achieving a -10 VDC bias voltage at the raw signal terminal. Processing high-frequency eddy-current signal changes allows precise evaluation of rotor dynamics and shaft motion without signal clipping or phase lag.

Frequently Asked Questions

Q: How is the physical transmitter module mounted inside control cabinets?

A: The Option 01 configuration incorporates pre-installed mounting clips designed for secure attachment directly to standard 35 mm DIN rail channels.

Q: What are the mechanical material construction specifications for the probe interface?

A: The probe assembly features a polyphenylene sulfide (PPS) tip, AISI 303 or 304 stainless steel case, and 75 ohm FEP-insulated coaxial cabling rated to 222 N (50 lbf) tensile pull strength.

Q: How is power delivered to the transmitter module during continuous operation?

A: Power is supplied across the two-wire output circuit, drawing operating loop current directly from the connected control system 24 VDC analog input interface.

Field Installation Guidelines

Snap the transmitter module onto a clean 35 mm DIN rail inside the field enclosure, verifying mechanical latch engagement.
Route the 75 ohm coaxial proximity probe cable and connect the threaded coupling to the input interface, tightening finger-tight.
Validate static DC gap voltage using a multimeter across the probe test points, adjusting physical probe depth to match the -10 VDC baseline.
Wire the two-wire loop output to the control system terminal block using twisted-pair shielded field wiring.
Terminate the cable shield to the cabinet earthing bus bar at a single ground point to suppress electrical noise and ground loop currents.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.