Bently Nevada 1900/65A 167699-02

Bently Nevada 167699-02 is the human-machine display panel for the Bently Nevada 1900/65A monitor and cannot work independently. It features on-site real-time display of vibration, temperature, alarm status, event query and simple configuration functions. It comes with one buffer signal output and supports separate installation up to 75 meters away. It is compatible with the online monitoring scenarios of industrial auxiliary machines such as pumps, fans and motors. It can visually display the equipment status to inspection personnel and, in conjunction with the main unit, achieve protection, 4-20mA and Modbus communication output. The panel is of Zone2/Div2 grade, suitable for auxiliary machine complete sets in industries such as chemical engineering, oil and gas, and power plants. Only basic parameter modification is supported. Core configuration requires software configuration. During installation, cable shielding and grounding must be done well to avoid interference.

Functional Description

1. On-site real-time display: measurement values of 4 vibration/displacement/rotational speed channels, 4 temperature channels, channel status, alarm (Alert warning, Danger), sensor OK status, bypass, Trip Multiply status; It comes with a backlit LCD, membrane keys and status indicator lights.

2. On-site configuration: Basic parameters such as range, alarm threshold, delay, and bypass can be directly modified on the panel without the need for computer software. The complete configuration still requires downloading the 1900 configuration software on the PC end to the host.

3. Event Query: View alarm records, fault events, and channel anomaly logs.

4. Signal buffered output: The panel is equipped with 1 channel of buffered original signal output for the oscilloscope to collect, diagnose and analyze. The internal DB9 serial port communicates with the host motherboard to transmit data and instructions. It is powered by the host and does not require an independent power supply.

5. Remote separation installation: The panel can be separated from the main unit, with a single cable extension installation up to 75m (250ft), suitable for local control cabinets and on-site installation beside the machine.

Product Usage

1. Distinguish components

The 167699-02 is only a panel and cannot work independently. It must be paired with the 1900/65A main unit. The individual panel has no collection, alarm or protection functions.

2. Extend the cable

For long-distance separated installation, the designated cable must be used. Long cables will reduce the buffer output bandwidth. During diagnostic collection, the buffer signal should be prioritized on the host side.

3. Explosion-proof area

The panel body is of Zone2/Div2 grade and cannot be directly installed in Zone 0 / Zone 1 / Div1. Sensors entering the hazardous area must be equipped with isolation barriers/Zener safety barriers. Wiring and grounding jumper treatment should be carried out in accordance with Bentley's explosion-proof drawings.

4. Grounding

Under explosion-proof conditions, according to the safety barrier scheme, the grounding jumper of the main unit can be disconnected to avoid ground loop interference.

5. Alarm Reset

The panel reset only resets the latch alarm. The Trip Multiply (startup amplification threshold) and Inhibit prohibition protection functions of the host need to be triggered by software or terminal signals, and the panel only displays the status.

6. Anti-interference wiring

Sensor signal lines and panel communication cables should be kept away from power cables. Single-ended shielding grounding is provided to prevent temperature and vibration reading drift caused by power frequency interference.

7. Configuration Permissions

The panel only supports simple parameter modifications; Channel type, filter, relay logic, Modbus mapping, unit, and integration mode must be downloaded from PC configuration software.

8. Relay load

In explosion-proof environments, the relay contact voltage should be ≤30VAC/DC and the current ≤5A to avoid the risk of sparks.

9. Spare parts replacement

When replacing the panel, there is no need to reinstall the main unit configuration at the bottom. Only communication matching is required. After replacement, check the alarm threshold, unit and channel label.

10. Fault phenomena

Black screen, no response of keys, communication disconnection. First, check the DB9 communication line on the panel and the power supply of the main unit