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Home > Electrical & Electronics > Electrical Control System > Bently 145988-02 16-Channel Temperature Monitor

Bently 145988-02 16-Channel Temperature Monitor

Guizhou Yuanmiao Automation Equipment Co., Ltd.

1Yr

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Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Port of Shipment:

guizhou

Delivery Detail:

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Operating Temperature -10℃ to 50℃

Relative Humidity 5% - 95% (non-condensing)

Storage Temperature -40℃~85℃

I. Overview

The Bently 145988-02 is the core human-machine interaction and control unit of the 3500 monitoring system. It must be used in conjunction with the 3500 framework (such as the 3500/15 power supply module, 3500/20 framework interface module, 3500/42 vibration monitoring module, etc.) and front-end sensors (such as the Bently 135031-01 eddy current displacement sensor). Its main functions include: real-time display of core parameters of rotating machinery, such as vibration, displacement, rotational speed, and temperature; setting multi-level alarm thresholds (warning/danger) and triggering sound and light alarms; configuring system parameters (such as sensor range, sampling frequency); and linking with the equipment's emergency shutdown interlock. Its core advantages lie in "integrated display of multiple parameters, high-reliability alarms, and convenient configuration and maintenance", making it particularly suitable for scenarios involving critical rotating equipment that requires 24/7 continuous monitoring.

The 145988-02 module displays real-time data of 4 channels of rotor radial vibration (from the 135031-01 sensor), 2 channels of axial displacement, and 1 channel of rotational speed. When the vibration of Bearing #2 rises from 0.3mm to 0.8mm (warning value), the module triggers a yellow sound and light alarm within 1 second, and at the same time, highlights the fault parameters on the LCD screen. When the vibration continues to rise to 1.2mm (danger value), it triggers a red alarm and links with the shutdown interlock to avoid unit tripping (a single trip causes a loss of over 500,000 yuan). In the propylene compressor system of a petrochemical plant, the 3500/65 helps maintenance personnel identify the pattern of "small fluctuations in axial displacement at 3 a.m. every day" through historical data curves, identify the cause of "lubricating oil temperature drop at night", adjust the oil temperature control strategy in advance, and prevent bearing wear. In the blast furnace blower system of an iron and steel plant, the 3500/65 module operates stably in an environment of -10℃ to 50℃, with a Mean Time Between Failures (MTBF) of ≥300,000 hours, meeting the high reliability requirements of the monitoring system for the 24/7 continuous oxygen supply of the blast furnace.

The Bently 145988-02 adopts an industrial-grade reinforced structure, adapts to the 3500 standard framework (19-inch rack-mounted, 1U height), and supports parallel expansion of multiple modules (maximum 8 modules per framework). It is equipped with a 320×240-pixel LCD backlit display (supporting Chinese/English switching) and 20 physical buttons (including function keys, numeric keys, confirm/cancel keys) for easy operation by maintenance personnel. It has a built-in buzzer and LED alarm lights (yellow for warning, red for danger) and supports the expansion of external sound and light alarms. It features a "power-off data preservation" function, with a built-in 128MB flash memory that can store the latest 1,000 alarm logs and 30 days of historical data (1-minute sampling interval). It supports an RS485/Modbus RTU communication interface and can be seamlessly connected to DCS systems (such as GE Mark VIe, Siemens PCS 7) to realize remote data upload. It has an operating temperature range of -10℃ to 50℃, a relative humidity of 5% to 95% (non-condensing), and an IP20 protection rating, making it suitable for industrial control room environments.

II. Technical Specifications

1. Display and Data Processing Parameters

Parameter Category	Specific Specifications
Display Interface	320×240-pixel LCD backlit display with adjustable brightness (5 levels), supporting Chinese/English interface switching; capable of displaying 4 types of interfaces: real-time data, historical curves, alarm logs, and system configuration
Number of Monitoring Parameters	A single module supports display of up to 32 channels of monitoring parameters (requires matching with monitoring modules such as 3500/42). Parameter types include vibration (peak-to-peak value/effective value), displacement (axial/radial), rotational speed, and temperature (RTD/thermocouple)
Data Update Frequency	Real-time data update frequency: 1 time per second; historical curve sampling interval: configurable (1 second - 1 hour); supports viewing of historical data from the latest 1 hour/24 hours/30 days
Data Accuracy	Display accuracy for vibration/displacement parameters: 0.001mm; display accuracy for rotational speed: 1r/min; display accuracy for temperature: 0.1℃
Curve Display Function	Supports single-parameter historical curves (maximum display of 30 days of data) and multi-parameter comparison curves (comparison of up to 4 channels of parameters on the same screen); curves can be zoomed and panned

2. Alarm and Interlock Parameters

Parameter Category	Specific Specifications
Alarm Levels	Supports 2 levels of alarms: Warning (yellow) and Danger (red); alarm thresholds can be set independently for each channel of parameters
Alarm Response Time	Alarm trigger response time ≤ 100ms; alarm release response time ≤ 500ms
Alarm Output	Built-in buzzer (adjustable volume) and LED alarm lights (yellow/red); supports 2 channels of relay alarm output (dry contact, AC250V/2A, DC30V/2A), which can be linked with external sound and light alarms
Interlock Control	Supports 1 channel of emergency shutdown interlock output (relay dry contact, capacity AC250V/5A, DC30V/5A); interlock trigger conditions are configurable (such as "any 1 channel of danger alarm", "2 or more channels of warning")
Alarm Logs	Can store the latest 1,000 alarm logs; each log includes a timestamp (accuracy 1ms), parameter name, alarm level, trigger value, and release value

3. System Configuration and Communication Parameters

Parameter Category	Specific Specifications
Configuration Method	Local button configuration (supports password protection to prevent misoperation); supports remote configuration via the 3500/20 framework interface module (requires Bently System 1 software)
Configurable Parameters	Configurable sensor parameters (range, type, calibration coefficient), monitoring module parameters (sampling frequency, filtering method), alarm thresholds, interlock logic, and communication parameters
Communication Interfaces	1 RS485 interface (supports Modbus RTU protocol) with configurable transmission rate of 9600-115200bps; 1 Ethernet interface (optional, supports TCP/IP protocol) for communication with DCS systems
Data Upload	Supports upload of real-time data, alarm status, and fault logs to DCS systems; data upload cycle is configurable (100ms-10s)
System Compatibility	Compatible with all monitoring modules of the Bently 3500 series (3500/42 vibration monitoring module, 3500/45 rotational speed monitoring module, 3500/50 temperature monitoring module); supports connection with the GE Proficy Machinery Health Manager platform

4. Environmental and Reliability Parameters

Parameter Category	Specific Specifications
Operating Temperature	-10℃ to 50℃ (natural heat dissipation without fan)
Storage Temperature	-40℃ to 85℃
Relative Humidity	5% to 95% (non-condensing), compliant with IEC 60068-2-38 humidity cycle standard (no failure for 1,000 hours)
Electromagnetic Compatibility	Emission: EN 55022 Class A; Immunity: EN 55024 (ESD ±15kV air discharge, EFT ±4kV power port, RF radiation 10V/m)
Mean Time Between Failures (MTBF)	≥300,000 hours (Telcordia standard, 25℃ environment)
Power Requirement	Powered by the 3500 framework: +5V DC (±5%) with maximum power consumption ≤10W; +24V DC (±10%) for relay output with maximum power consumption ≤5W

III. Functional Characteristics

1. Integrated Visualization of Multiple Parameters for Clear Data Overview

As the "data hub" of the monitoring system, the Bently 145988-02 realizes centralized display and intuitive presentation of multiple parameters through the LCD screen, solving the problems of "scattered parameters and cumbersome viewing" in traditional monitoring systems:

Full-screen Monitoring of Real-time Data: A single screen can display 16 channels of real-time parameters (divided into 2 pages, 8 channels per page). Parameter values, units, and alarm statuses (normal - green, warning - yellow, danger - red) are clearly marked, allowing maintenance personnel to grasp the overall health status of the equipment at a glance.
Traceability and Analysis of Historical Curves: Supports 30-day historical curves for single parameters and comparison curves for multiple parameters. In the steam turbine generator set of a power plant, maintenance personnel used the historical curves of the 145988-02 to identify the pattern of "small vibration increases every Friday afternoon", locate the problem of "insufficient preheating before weekend load adjustment", and optimize the operation process.
Chinese Interface Adaptation: Supports Chinese display and operation, lowering the operation threshold for domestic maintenance personnel. Especially in small and medium-sized factories, personnel without professional English proficiency can also quickly master configuration and fault troubleshooting.

2. Hierarchical Alarms and Rapid Interlocking to Ensure Equipment Safety

In view of the characteristics of rotating machinery, such as "fast fault escalation and high shutdown losses", the 145988-02 realizes upgraded safety protection through hierarchical alarms and rapid interlocking:

Precise Control with Two-level Alarms: Warnings (e.g., vibration 0.3-0.8mm) are used for "early reminders", allowing maintenance personnel to arrange planned maintenance; Danger alarms (e.g., vibration ≥1.2mm) are used for "emergency handling" to trigger shutdown interlocks. In the propylene compressor of a petrochemical plant, maintenance personnel had 8 days to replace bearings under the warning status, avoiding shutdown caused by danger alarms.
Millisecond-level Alarm Response: With an alarm trigger response time of ≤100ms, combined with a built-in buzzer and LED lights, in the blast furnace blower of an iron and steel plant, when the rotational speed dropped suddenly by 50r/min (warning value), the 145988-02 alarmed instantly. Maintenance personnel checked the motor power supply in a timely manner, preventing blast furnace air cut-off caused by continued rotational speed drop.
Flexible Interlock Logic: Interlock conditions can be configured according to equipment importance, such as "single compressor → interlock shutdown for any 1 channel of danger alarm", "standby unit → interlock only for 2 or more channels of warning". In the dual-unit configuration of a power plant, unnecessary shutdowns caused by single-channel false alarms are avoided.

3. Convenient Configuration and Maintenance to Reduce Operation Costs

Through humanized design and standardized tools, the 145988-02 significantly reduces the difficulty of system configuration and maintenance:

Local/Remote Dual Configuration Modes: Local button configuration is suitable for quick on-site adjustments (e.g., temporary modification of alarm thresholds), while remote configuration (System 1 software) is suitable for batch parameter setting. In the monitoring system of 10 compressors in a chemical plant, remote configuration reduced the parameter setting time from 1 day to 2 hours.
Password Protection and Operation Logs: Supports 3 levels of password permissions (Administrator/Operator/Viewer) to prevent unauthorized personnel from modifying key parameters; at the same time, it records operation logs (e.g., "who modified the alarm threshold and when"), facilitating traceability of misoperation responsibilities.
Fault Self-diagnosis and Rapid Localization: The module has a built-in self-diagnosis function that can detect problems such as "display failure", "communication interface abnormality", and "power failure", and prompt the cause of the fault on the screen (e.g., "RS485 communication interruption → check wiring/baud rate"). Maintenance personnel can locate faults within 5 minutes without professional technical support.

Product Tags: 3500/65 , 145988-02