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Sentry Instruction Manual - Version 6

5. CALIBRATION

5.1 SENTRY CALIBRATION - AN OVERVIEW

Calibration is a simple three step process:

1.Initiate calibration via the controller keyboard.

2.Apply zero gas (if required) and then span gas to the sensors.

3.Close the calibration via the controller keyboard.

Calibration parameters are configured via the CHANGE CALIB activity and are saved by Sentry for future calibrations.

During calibration Sentry "peak holds" the sensor signal output for zero and span gas and then uses those values to construct a curve for continuous reference during normal gas monitoring.

There are two alternative calibration methods, Global Calibration and Local Calibration.

5.1.1 GLOBAL CALIBRATION

When Global Calibration is selected, the Sentry controller collects zero and span value data from all sensor modules eligible for calibration based on a global keyboard command. It is not necessary to calibrate all the sensors, those which do not receive span gas will be rejected automatically.

The operator presses the ENTER key to initiate, and complete, collection of the zero value and then the span value. Calibration gas may be delivered to the sensor module in a variety of methods dependent upon the accessibility of the sensor.

The benefits of Global Calibration are:

∙Magnetic calibration head not required.

∙All "zero's" can be set at one time. Global Calibration is particularly useful when:

∙The sensor is in a position which is difficult to access, because a calibration gas delivery tube can be installed to a more accessible location.

∙The magnetic head is not available or the magnetic switch in one of the sensors is not functioning.

5.1.2LOCAL CALIBRATION

When Global Calibration is turned off, the Sentry controller collects zero and span value data from each sensor module eligible for calibration based on a local command at the module.

Calibration gas is delivered through a magnetic fitting which causes a switch in the sensor to command the controller to remember the module output. The procedure calls for the magnetic cap to be applied twice (zero first, span second) except that the magnet is applied only once for oxygen modules.

The benefits of Local Calibration are:

∙Individual modules can be calibrated while others remain on line.

∙Time savings when sensors must be exposed to zero air due to the environment.

Local Calibration is particularly useful when:

∙Plant operating procedures demand that some modules remain on line while others are being calibrated.

5.2CALIBRATION INITIALIZATION

5.2.1 MODULES

Before any module can be calibrated it must be initialized via the CHANGE MODULE activity. Initialization includes turning the module on, setting the alarm levels and setting the factor(s). This activity is described in step by step form in Section 4.3 steps 6 through 18. If a module is not initialized, an error prompt INITIALIZE MODULES FIRST will display when calibration is attempted.

NOTE

The following calibration instructions are applicable to

controllers with version 6.xx firmware. For earlier version firmware (example 4.2) refer to the Instruction Manual furnished with that controller. To determine the firmware version installed in any Sentry controller, press TEST, ENTER and observe the firmware version number on the lower LCD screen.

NOTE

If any sensors are not previously calibrated use

Diagnostic Code 0020 or 0021 to force calibration prior to performing the normal calibration procedure. See Section 8.3.5.

CALIBRATION

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Sentry Industries 5000 instruction manual Sentry Calibration AN Overview, Global Calibration, Local Calibration
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5000 specifications

Sentry Industries 5000 is a cutting-edge security and surveillance system designed for both commercial and residential applications. With its robust features, state-of-the-art technologies, and user-friendly interface, the Sentry Industries 5000 has established itself as a leader in the security industry.

One of the primary features of the Sentry Industries 5000 is its advanced motion detection system. Equipped with smart sensors, the system effectively differentiates between human movement and other disturbances, such as pets or passing vehicles. This smart detection reduces false alarms, providing peace of mind and ensuring that users are alerted only when genuine security threats are present.

Another key aspect of the Sentry Industries 5000 is its high-definition camera capabilities. The system supports 4K resolution, delivering crystal-clear video quality that allows for easy identification of individuals and objects. Additionally, the cameras are equipped with night vision technology, enabling effective monitoring even in low-light conditions. The ability to pan, tilt, and zoom (PTZ) enhances the coverage area, allowing users to monitor large spaces with ease.

Connectivity is a cornerstone of the Sentry Industries 5000, incorporating both Wi-Fi and Ethernet options for flexible installation. It also features seamless integration with smart home devices, allowing users to control their security system via mobile apps or voice commands. This interoperability enables customized security settings, alert configurations, and device interconnectivity for a cohesive smart environment.

Another standout characteristic of the Sentry Industries 5000 is its cloud storage capability. Users can choose to save their footage locally or on the cloud, which ensures that data is secure and accessible from anywhere at any time. The flexibility in storage solutions caters to various user needs and preferences.

Data encryption and secure access protocols are critical components of the Sentry Industries 5000, providing robust protection against unauthorized access and hacking attempts. The system includes two-factor authentication for added security, ensuring that user data remains confidential and protected.

Moreover, the user-friendly interface of the Sentry Industries 5000 simplifies the process of monitoring and managing security features. With intuitive controls and easy-to-navigate menus, users can set up their systems quickly and efficiently.

In summary, the Sentry Industries 5000 is a comprehensive security solution that excels in features, technology, and user experience. With advanced motion detection, high-definition surveillance, flexible connectivity, and strong security measures, it stands out as an ideal choice for those looking to enhance their security measures in an increasingly challenging world.
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