Bentley

The OK light on the card is usually an indicator used to show the operating status of the device. Based on what you mentioned, it is the Bentley 3500/25 card; this type of card is typically used in monitoring and protection systems, and it is part of the Bentley 3500 series of vibration monitoring systems. For the different states of the OK light, the following are the general meanings: 1. Constantly on: Indicates that the card is working properly, the system is in good condition, and all monitoring and protection functions are operating normally. 2. Flashing: The frequency and pattern of flashing may indicate different information. A common scenario is that the intermittent flashing of the OK light may indicate that the system is undergoing a self-diagnosis check or is in the process of starting up. Sometimes, based on the frequency and pattern of the flashing, specific warnings or errors can also be identified. 3. Not lit: If the OK light does not light up at all, this may indicate that the card module is not receiving power, or that there is a fault with the card module. In this case, it is necessary to check other power indicator lights (if any) or perform fault diagnosis. In your specific case, since different card models may have different logic for their status lights, to obtain the most accurate information, it is recommended to refer to the user manual or product documentation for that particular card, or to contact the technical support for the Bentley 3500 system to get precise information regarding the status indicators. The status signals of the monitoring systems may vary among different manufacturers; therefore, consulting the relevant documentation will provide the most reliable guidance. If there is no documentation, consider contacting the equipment supplier or a professional maintenance technician for further diagnosis and support. .