The 990 vibration transmitter provides a simplified vibration measurement interface for rotating machinery by converting proximity probe displacement into a standardized 4–20 mA output signal. It is designed for OEM applications where vibration indication is required for control system logic rather than full condition monitoring.
This configuration (990-04-50-01-00) is optimized for short system installation using a 5.0 meter probe cable and DIN rail mounting structure. It operates as a loop-powered device and integrates signal conditioning internally, reducing external instrumentation requirements.
The measurement principle is based on proximity probe displacement, processed into peak-to-peak vibration amplitude suitable for trend-based machinery protection.
Configuration Breakdown
Parameter
Selection
Model
990 Vibration Transmitter
Full-scale Range
0–4 mils pp
System Length
5.0 m
Mounting Type
35 mm DIN rail clips
Approval Option
CSA / ATEX / maritime variant
Functional Characteristics
Two-wire loop powered architecture
Direct 4–20 mA vibration proportional output
Compatible with 3300 NSv proximity probe system
Internal signal conditioning and scaling
DIN rail installation format for panel integration
Adjustable loop calibration via external interface points
Fault indication through signal suppression behavior
Designed for compact OEM machinery packages
Applications
Small centrifugal compressors
Industrial pump skids
Fan assemblies in HVAC systems
General purpose rotating equipment
OEM machine monitoring panels
Auxiliary vibration trend points
Electrical Characteristics
Parameter
Value
Supply Voltage
+12 to +35 Vdc
Output Signal
4–20 mA proportional vibration
Loop Resistance
1000 ohm max (including cable)
Current Limiting
23 mA typical
Input Source
3300 NSv proximity probe system
Mechanical Data
Parameter
Value
Transmitter Weight
0.43 kg
Total System Weight
0.82 kg
Minimum Target Size
9.5 mm
Housing Type
DIN rail mounted module
Dimensions (H×W×D)
53.3 × 73.9 × 100.1 mm
Environmental Limits
Condition
Value
Operating Temperature
-35 C to +85 C
Storage Temperature
-51 C to +100 C
Humidity
100% condensing (non-submerged)
Installation Notes
DIN rail installation requires stable panel grounding to ensure signal integrity under industrial noise environments. Cable routing should avoid high voltage conductors to reduce electromagnetic interference.
Probe gap must be set within specified range to maintain linear measurement response. System commissioning should verify stable loop current before enabling alarm logic in control systems.
Interface Definition
Terminal
Function
LOOP +
Power + 4–20 mA output
COM
Signal reference
PROX OUT
Raw vibration diagnostic signal
FAQ
What type of signal does this transmitter output? It provides a 4–20 mA signal proportional to vibration amplitude.
Can it operate without external signal conditioning? Yes, signal conditioning is fully integrated inside the device.
What mounting method is used? This version uses standard 35 mm DIN rail mounting.
What is the probe system requirement? It works with the Bently Nevada 3300 NSv proximity probe system.
Is it suitable for full vibration diagnostics? No, it is intended for trend-level monitoring and protection logic.
Technical Datasheet (PDF)Complete specifications and technical drawings.
Globális expressz szállítás
Normál szállítás: 4-6 munkanap a DHL, FedEx és UPS szolgáltatásával.
Gyors kiszállítás: A raktáron lévő, 14:00 (GMT+8) előtt leadott megrendeléseket aznap feladjuk.
Világszintű lefedettség: Több mint 150 országban szolgálunk ki, beleértve a gyors szállítást Szaúd-Arábiába és az Egyesült Arab Emírségekbe.
Visszaküldés és garancia
30 napos garancia: Csak a raktáron lévő termékek eredeti, gyári zárt csomagolásban történő visszaküldését fogadjuk el.
12 hónapos garancia: Minden ipari alkatrészünket szakmai műszaki garancia védi.
A megrendeléseket hétfőtől péntekig dolgozzuk fel és szállítjuk (állami ünnepnapok kivételével).
A teljes jogosultság, a készletfeltöltési díjak és a nemzetközi visszaküldési részletek megtekintéséhez kérjük, tekintse meg hivatalos oldalunkat
Visszatérítési és Visszaküldési Szabályzat
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