BENTLY NEVADA 3500/65 145988-02 Temperature Monitor Module
Bently Nevada 3500/65 temperature monitor
145988-02 temperature monitor module
Bently Nevada temperature monitor module
Brand Name:
Bently Nevada
Bently Nevada 3500/65 temperature monitor
,145988-02 temperature monitor module
,Bently Nevada temperature monitor module
BENTLY NEVADA 3500/65
16-Channel Temperature Monitor
A temperature-monitoring module for the 3500 Machinery Protection System. It accepts RTD and isolated-tip thermocouple signals, processes temperature measurements, and supports configurable alarm setpoints for machinery condition monitoring.
Product Overview
The monitor evaluates measured temperatures against user-configured alert and danger limits. Configuration is performed through 3500 Rack Configuration Software. Before ordering a replacement, confirm the installed I/O termination arrangement, rack configuration, and applicable system software and firmware requirements.
Technical Specifications
| Input Signals | 1 to 16 RTD or isolated-tip thermocouple (TC) transducer signals |
|---|---|
| Input Configuration | Isolated-tip TC, 3-wire RTD, 4-wire RTD, or a combination of TC and RTD inputs |
| Nominal Power Consumption | 3 W |
| Input Impedance | Greater than 1 MΩ for each lead input |
| Temperature Resolution | 1°C or 1°F |
| Temperature Accuracy | ±3°C at +25°C (±5.4°F at +77°F) for internal and external termination arrangements in bulkhead and standard racks |
| RTD Current Source | 913 ± 7 µA at 25°C per transducer; one supply for 4-wire RTDs and two supplies for 3-wire RTDs |
| Front-Panel Indicators | OK, TX/RX and Bypass LEDs |
View Supported Transducer Types and Measurement Ranges
| Type E Thermocouple | -100°C to +1000°C (-148°F to +1832°F) |
|---|---|
| Type J Thermocouple | 0°C to +760°C (32°F to +1400°F) |
| Type K Thermocouple | 0°C to +1370°C (32°F to +2498°F) |
| Type T Thermocouple | -160°C to +400°C (-256°F to +752°F) |
| 100 Ω Platinum RTD, α = 0.00385 | 3-wire and 4-wire; -200°C to +850°C (-328°F to +1562°F) |
| 100 Ω Platinum RTD, α = 0.00392 | 3-wire and 4-wire; -200°C to +700°C (-328°F to +1292°F) |
| 120 Ω Nickel RTD | 3-wire and 4-wire; -80°C to +260°C (-112°F to +500°F) |
| 10 Ω Copper RTD | 3-wire and 4-wire; -100°C to +260°C (-148°F to +500°F) |
View Alarm, Signal Conditioning and Configuration Details
| Alarm Setpoints | User-configurable Alert and Danger setpoints; under-alarm and over-alarm setpoints are supported. |
|---|---|
| Alarm Setpoint Range | 0–100% of full scale, subject to the sensor measurement range. |
| Alarm Setpoint Accuracy | Within 0.13% of the desired value. |
| Alert Delay | 1–60 seconds, in 1-second increments. |
| Danger Delay | 1–60 seconds, in 0.5-second increments. |
| Signal Conditioning | Full-scale range for each channel is set through 3500 Configuration Software. No calibration is required as specified in the datasheet. |
| Cold-Junction Compensation | For TC measurements: ±2°C at +25°C (±3.6°F at +77°F). |
| OK LED | Indicates whether the monitor is operating properly. |
| TX/RX LED | Indicates communication with other modules in the rack. |
| Bypass LED | Indicates when the monitor is in Bypass Mode. |
View Environmental, Physical and Rack Specifications
| Operating Temperature | -30°C to +65°C (-22°F to +150°F) |
|---|---|
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Main Module Dimensions (H × W × D) | 241.3 × 24.4 × 241.8 mm (9.50 × 0.96 × 9.52 in) |
| Main Module Weight | 0.91 kg (2.0 lb) |
| I/O Module Dimensions (H × W × D) | 241.3 × 24.4 × 99.1 mm (9.50 × 0.96 × 3.90 in) |
| I/O Module Weight | 0.45 kg (1.0 lb) |
| Rack Space | Main module: one full-height front slot; I/O module: one full-height rear slot |
View Installation and System Compatibility Notes
- Internal-termination and external-termination I/O modules use different arrangements. External termination blocks cannot be used with internal-termination I/O modules.
- For external terminations, the external termination block and cables are ordered separately.
- For 4-wire RTD applications, the manufacturer specifies I/O Module Modification 179952-01.
- When adding a monitor to an existing system, confirm the required minimum firmware and software versions. The datasheet specifies 3500/22 firmware 1.50, 3500/01 software 3.85, 3500/93 firmware 2.02, and System 1 software 5.2 with Service Pack 2 or later. 3500/02 and 3500/03 software are not supported.
- In Triple Modular Redundant (TMR) configurations, temperature monitors must be installed in groups of three adjacent monitors.
- When replacing certain older I/O module revisions, follow the manufacturer's firmware-upgrade sequence. The datasheet warns that an incorrect sequence can produce an I/O Module Mismatch and 562 ADC Failure event.
Confirm the installed rack, I/O module part number and revision, termination method, firmware, software, and sensor wiring before replacing or commissioning equipment.
Technical reference: Bently Nevada 3500/65 16-Channel Temperature Monitor Datasheet, document 172930, Rev. P.
Application & Failure Scenarios
This module is used in machinery monitoring installations where temperature signals are part of the equipment protection strategy. Depending on the installed sensors and system design, monitored points may include bearing metal, compressor process, steam, or motor stator temperatures.
- Typical replacement trigger: a monitor fault, unavailable or abnormal temperature channels, or scheduled maintenance requiring a replacement module.
- Operational risk: loss of required temperature monitoring can reduce visibility into overheating conditions and affect configured alarm or protection functions.
- Replacement check: verify the installed I/O arrangement, sensor type, configuration, and rack software or firmware requirements. Sensor, wiring, and configuration faults may also cause abnormal readings.
AMIKON Supply & Service
AMIKON supports industrial automation spare-part sourcing for maintenance teams and system integrators. Before ordering, confirm the supplied item's condition, inspection or test scope, packaging, dispatch arrangements, warranty coverage, and return terms in the written quotation.
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Request a Quotation
Please provide the following details when requesting a quotation:
| Part Number 145988-02 |
Quantity Required quantity |
| Destination Delivery city and country |
Required Date Expected delivery date |
| Machine/System Model Installed 3500 rack and relevant system or machine model |
|
Email your requirements to sales@amikon.cn for quotation and confirmation of the offered item's condition and commercial terms.
Frequently Asked Questions
1. What is the BENTLY NEVADA 3500/65 145988-02 used for?
2. Which temperature sensor types can the 3500/65 accept?
3. Can the 145988-02 be replaced without checking the I/O module?
4. What should be checked if a temperature channel is abnormal?
5. How can I request a quotation for this part?
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