991-01-XX-01-05 Thrust Transmitter , China 991-01-XX-01-05 Thrust Transmitter Manufacturers, Suppliers, Factory

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	991-01-XX-01-05
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Full-scale Option :	0.6-0-0.6 mm
System Length Option :	5.0 meters (16.4 feet)
Mounting Option:	35 mm DIN-rail clips
Agency Approval Option :	CSA Division 2, ATEX Zone 0, ATEX Zone 2 and includes ABS maritime approval
Dimension:	10x7.3x5.8cm
Weight:	0.46 kg

Description

The 991-01-XX-01-05 Thrust Transmitter provides a 4–20 mA proportional axial displacement signal for centrifugal air compressors, small pumps, motors, and fans. Accepting a 3300 NSv Proximity Probe with a 5-meter extension cable, 991-01-XX-01-05 measures full-scale axial movement from -0.6 to 0.6 mm, with a linear Prox Out range of 0.25–1.65 mm (10–65 mils) and 10 kΩ output impedance calibrated for a 10 MΩ load. Loop-powered with +12 to +35 Vdc and typical 23 mA current, it supports maximum loop resistance of 1,000 Ω. The transmitter includes integrated Proximitor Sensor, non-interacting zero and span potentiometers, and a Test Input pin for fast loop verification. Power-up Inhibit and Not OK/Signal Defeat circuits prevent false signals and high outputs due to probe faults. Mounting options include 35 mm DIN rail clips or bulkhead screws, and potted construction allows operation from -35°C to +85°C and storage from -51°C to +100°C. Agency approvals include CSA Division 2, ATEX Zone 0/2, and ABS maritime, making 991-01-XX-01-05 ideal for automated axial displacement monitoring in industrial control systems.

Applications

Centrifugal air compressor stations: This is the primary application scenario for this model. It is used to monitor the axial position of the compressor rotor in real time, preventing catastrophic collisions between the rotor and casing due to thrust bearing wear.

Small and medium-sized pump and motor factories: Used in high-speed pump sets or large motors with thrust bearings, converting minute axial displacements into standard 4-20 mA signals sent to PLC/DCS.

Auxiliary unit monitoring (cooling towers/fans): In auxiliary systems of power plants or chemical plants, it monitors the positioning of fan shafts to ensure mechanical integrity.

Hazardous chemical areas (certification requirements): The suffix -05 indicates that the equipment has multiple international safety certifications such as ATEX/CSA/CE, and can be installed in flammable and explosive hazardous areas.

Specifications

Operating Temperature:	-35°C to +85°C (-31°F to +185°F)
Storage Temperature :	-51°C to +100°C (-60°F to +212°F)
Input:	Accepts one non-contacting 3300 NSv Proximity Probe and extension cable
Power:	Requires +12 to +35 Vdc input at the transmitter terminal
Maximum Loop Resistance:	1,000 Ω including cable at 35 Vdc
Current Limiting:	23 mA typical
Output Impedance:	Prox Out has a 10 kΩ output impedance calibrated for a 10 MΩ load
Linear Range:	0.25 to 1.65 mm (10 to 65 mils) for Prox Out
Leadwire Length:	Proximitor Sensor Output (BNC connector), maximum cable distance is 3 meters (10 feet)

Competitive Advantage

Fast Loop Verification
The Test Input pin allows 991-01-XX-01-05 to quickly simulate signals and confirm loop output, reducing setup and commissioning time.

Fault Signal Prevention
Power-up Inhibit and Not OK/Signal Defeat circuits prevent incorrect outputs from a faulty probe, avoiding unnecessary control system alarms for 991-01-XX-01-05.

Compact Mounting Options
DIN rail clips or bulkhead screws allow 991-01-XX-01-05 to fit in tight machinery spaces, enabling axial monitoring in compact setups.

Extended Temperature Operation
Potted construction permits 991-01-XX-01-05 to operate from -35°C to +85°C and store up to +100°C, supporting continuous axial displacement measurement in harsh industrial conditions.