Description
Bently 1900/65‑01‑01‑03‑00
- Technical Specifications
- Physical Mounting Form: Standard 35 mm DIN‑rail mounting, cabinet‑only installation
- Dynamic Transducer Input Channels: 4 multi‑configurable dynamic input channels
- Temperature Input Channels: 4 temperature measurement channels
- Supported Dynamic Sensor Types: Eddy‑current proximity probe, IEPE accelerometer, two‑wire velocity transducer
- Supported Temperature Sensor Types: Type J, K, E, T thermocouple; 2‑wire and 3‑wire Pt100 RTD
- Relay Outputs: 6 programmable electromechanical relay outputs
- Relay Contact Rating: 5 A @250 VAC resistive load
- Analogue Recorder Output: 4 channels galvanically‑isolated 4‑20 mA output
- Buffered Sensor Output: BNC buffered raw dynamic‑signal output for portable‑diagnostic‑instrument connection
- Communication Interface: RS‑485 Modbus RTU
- Power Supply Requirement: 24 VDC nominal, operating range 18 VDC ~ 30 VDC
- Operating Ambient Temperature Range:‑30 °C ~ +65 °C
- Storage Temperature Range:‑40 °C ~ +85 °C
- Enclosure Protection Grade: IP20, for installation inside closed electrical cabinet only
- Front‑Panel Configuration: Attached local digital display and operating keypad
- Functional Features: All‑channel‑sensor‑type, measurement‑unit, alarm‑threshold‑value, alarm‑time‑delay‑parameter and relay‑logic can be fully configured via dedicated PC‑configuration‑software; partial‑parameter adjustment can be completed via front‑panel local keypad without PC‑tool. Every‑measurement‑channel has independent Alert and Danger programmable threshold with adjustable hysteresis and time‑delay setting to suppress false‑alarms caused by transient‑signal‑spikes. Integrated front‑panel digital‑display supports real‑time reading for each‑channel vibration‑amplitude, temperature‑value, alarm‑status and module‑fault‑status on‑site. Built‑in event‑log stores large‑volume timestamped‑records for alarm‑events, danger‑trip‑events, sensor‑fault‑status and module‑power‑cycle‑records. BNC buffered‑raw‑sensor‑output allows on‑site‑spectrum‑and‑waveform‑diagnosis without disconnecting‑field‑sensors. Integrated‑hardware‑fault‑diagnosis‑function can detect‑sensor‑open‑circuit‑fault, short‑circuit‑fault and power‑supply‑abnormality. Galvanically‑isolated 4‑20 mA analogue‑outputs effectively‑reduce‑ground‑loop‑interference‑risk between‑field‑sensors and upper‑level‑control‑system. Modbus RTU‑communication‑transmits‑vibration‑amplitude, temperature‑value, alarm‑status and fault‑diagnostic‑information‑to‑plant‑DCS, PLC and SCADA‑system. Relay‑contact‑supports‑normally‑open‑and‑normally‑closed‑configurable‑mode‑for‑flexible‑interlock‑circuit‑design.
- Application Scenarios: Condition‑monitoring‑and‑machinery‑protection‑for‑auxiliary‑rotating‑equipment‑including‑centrifugal‑pumps,‑fans,‑blowers,‑small‑frame‑compressors‑and‑gearboxes,‑where‑on‑site‑local‑real‑time‑data‑reading‑requirement‑exists. Widely‑deployed‑in‑thermal‑power‑plant‑auxiliary‑system,‑water‑treatment‑plant,‑paper‑mill‑and‑general‑heavy‑industry‑facilities. Suitable‑for‑non‑critical‑rotating‑assets‑requiring‑local‑relay‑interlock‑protection‑together‑with‑remote‑data‑transmission‑to‑central‑control‑system. Installed‑inside‑closed‑general‑purpose‑electrical‑cabinets‑in‑non‑hazardous‑industrial‑zones.
- Performance Parameters: Dynamic‑signal‑sampling‑capability‑supports‑vibration‑frequency‑analysis‑up‑to‑10 kHz. Sensor‑fault‑detection‑response‑time‑is‑less‑than‑200 ms. 4‑20 mA‑analogue‑output‑full‑scale‑accuracy‑reaches‑±0.15 %. Galvanic‑isolation‑exists‑between‑field‑input‑circuit,‑analogue‑output‑circuit‑and‑communication‑port‑to‑suppress‑ground‑loop‑noise‑interference. Non‑volatile‑memory‑retains‑all‑user‑configuration‑parameters‑and‑historical‑event‑log‑data‑when‑module‑power‑supply‑is‑lost. Each‑channel‑supports‑independent‑alarm‑time‑delay‑setting‑to‑avoid‑false‑tripping‑caused‑by‑transient‑signal‑disturbance. Local‑display‑provides‑real‑time‑process‑value‑refresh‑rate‑at‑250 ms‑per‑update‑cycle.
- Material Composition: Module‑housing‑is‑made‑of‑flame‑retardant‑industrial‑thermoplastic‑material. Detachable‑screw‑terminal‑blocks‑adopt‑high‑conductivity‑copper‑alloy‑contact‑pieces. Multi‑layer‑industrial‑grade‑printed‑circuit‑board‑integrates‑signal‑conditioning‑circuit,‑surge‑protection‑components,‑micro‑processor,‑local‑display‑driving‑circuit‑and‑communication‑driving‑circuit. Internal‑passive‑heat‑dissipation‑framework‑ensures‑stable‑heat‑dissipation‑without‑cooling‑fan. Front‑panel‑display‑module‑is‑industrial‑grade‑LCD‑digital‑display‑with‑membrane‑operating‑keypad.
- Structural Characteristics: Slim‑rectangular‑DIN‑rail‑housing‑structure. Front‑panel‑is‑equipped‑with‑integrated‑LCD‑digital‑display,‑membrane‑operating‑keypad,‑power‑supply‑LED‑indicator,‑channel‑alarm‑LED‑indicators‑and‑module‑fault‑LED‑indicators. Front‑side‑dedicated‑configuration‑port‑for‑PC‑configuration‑tool‑connection. Multiple‑detachable‑screw‑terminal‑blocks‑are‑arranged‑separately‑for‑sensor‑signal‑input,‑relay‑output,‑analogue‑signal‑and‑DC‑power‑supply‑wiring. Ventilation‑slots‑are‑distributed‑at‑top‑and‑bottom‑edge‑of‑housing‑for‑passive‑natural‑heat‑dissipation. No‑built‑in‑cooling‑fan,‑fully‑passive‑cooling‑design.
- Working Principle: Field‑installed‑sensors‑transmit‑analogue‑vibration‑and‑temperature‑signals‑into‑monitor‑input‑terminals. Internal‑circuit‑completes‑signal‑conditioning,‑anti‑aliasing‑filtering‑and‑analogue‑to‑digital‑conversion. On‑board‑micro‑processor‑executes‑real‑time‑calculation‑for‑vibration‑amplitude‑and‑temperature‑measured‑value. Measured‑process‑values‑are‑continuously‑compared‑with‑user‑configured‑Alert‑and‑Danger‑threshold‑set‑points. When‑measured‑value‑exceeds‑threshold‑and‑lasts‑longer‑than‑programmed‑time‑delay‑period,‑corresponding‑relay‑output‑will‑be‑activated. Real‑time‑measurement‑data‑is‑simultaneously‑sent‑to‑front‑panel‑LCD‑display‑for‑local‑on‑site‑reading. Process‑measurement‑values‑are‑converted‑to‑isolated‑4‑20 mA‑analogue‑signal‑and‑Modbus‑digital‑register‑data,‑then‑transmitted‑outward‑to‑upper‑level‑control‑system. Built‑in‑diagnostic‑algorithm‑continuously‑monitors‑input‑signal‑quality‑to‑identify‑sensor‑wiring‑fault‑and‑module‑internal‑hardware‑abnormality,‑and‑outputs‑corresponding‑fault‑status‑flag‑to‑display‑and‑communication‑interface.
- Installation Requirements: Install‑this‑monitor‑module‑inside‑closed‑electrical‑control‑cabinet,‑ambient‑temperature‑must‑remain‑within‑rated‑operating‑temperature‑range. Maintain‑sufficient‑upper‑and‑lower‑clearance‑for‑natural‑ventilation‑and‑heat‑dissipation. Low‑level‑sensor‑signal‑cables‑must‑be‑physically‑separated‑from‑high‑voltage‑power‑cables‑to‑minimize‑electromagnetic‑interference. All‑transducer‑input‑wiring‑must‑adopt‑shielded‑twisted‑pair‑industrial‑cable. 24 VDC‑DC‑power‑supply‑source‑must‑have‑good‑ripple‑filtering‑performance. Complete‑full‑parameter‑configuration‑via‑PC‑configuration‑software‑before‑connecting‑field‑site‑sensors;‑partial‑parameter‑adjustment‑can‑be‑finished‑via‑front‑panel‑keypad‑after‑power‑on. Verify‑relay‑contact‑load‑rating‑matches‑interlock‑circuit‑actual‑load‑requirement. Cabinet‑protective‑earth‑connection‑must‑be‑reliable‑and‑well‑implemented.
