MB-254 Control Unit
A series of digital gas sensor control units.
- Management of 16 to 254 gas sensors
- Large 7″ LCD display shows real-time gas concentrations, sensor information, and alarms
- Compatible with the latest digital gas sensors via Modbus RTU network, with optional connection of sensors with 4-20mA outputs
- Full sensor calibration functionality
- Non-volatile memory allows all configuration parameters to be stored
- Discrete programmable alarm channels, from 3 in the 16-channel version to 15 in the most advanced version.
Description:
The MB controller provides the highest performance and functionality hidden in an autonomous controller. Functionality based on sophisticated PLC software allows you to manage a wide range of services. Available in versions from sixteen to two hundred and fifty-four channels, the MB controller is designed to provide operators with the most detailed real-time information about gas concentrations throughout the monitored facility. The information is communicated via a large LCD screen or a computer browser, which shows real-time gas concentrations, sensor location, sensor type, alarms, and historical data trends.
Each channel of the MB controller has two independent, user-programmable alarm thresholds, allowing for flexibility in alarm notification. When alarms occur, operators are notified by an LED indicator on the front panel and a buzzer, and with access to visualization on the integrated LCD display or web browser, the location and status of the alarm are clearly indicated. A minimum of three internal relays can be used to control fans, horns, or navigation signals when alarm thresholds are exceeded in specific areas. These relays can be freely paired with alarm signals from selected gas sensors from the programming position.
The system is primarily designed to work with existing, installed C3-NET series smart gas detectors. When designing and installing a new detection system, it is recommended to use MGS-500 or C3-NET detectors equipped with Modbus digital outputs, connected to the MB or ASIX control system. Unlike the analog 4-20 mA signal, the digital Modbus signal is unmodifiable and non-repudiable, guaranteeing above-average information security.
A typical method of connecting devices to a controller
| Technical parameters: | |
|---|---|
| Type: | Controller with 16 to 254 channels |
| Standars outputs: | 1 – 16 Modbus RTU Server inputs, each supporting up to 16 sensors. Maximum of 254 sensors. |
| Optional outputs: | 4 – 16 sensors with 4 – 20mA outputs |
| Display: | The controller displays information via HTTP Ethernet protocol: integrated internal 7″ LCD display integrated external 7″ LCD display any web browser with Java |
| Power supply: | 24V DC max. 5A (directly or via 230V AC / 24V DC power supply), PLC and sensors tested from 18 – 30V DC |
| Alarm relays (Common): | Integrated LED and Buzzer |
| Alarm relays (Discrete): | from 3 to 15, SPDT |
| Analog outputs to BMS: | Optional |
| Digital output ports: | Modbus® RTU via RS 485 – communication with sensors Modbus TCP via Ethernet – communication with displays, external BMS and SCADA systems CAN Open – communication with external systems (optional) |
| Permissible temperature/relative humidity: | 0°C – 50°C / 30% – 90%RH |
| IP rating: | IP65 |
| Dimensions (for the 16-channel version): | Around 8″ x 11″ x 4″ (193 x 283 x 95mm) |
| Certificates: | CE |
| ATEX: | Not available (Note: ATEX available for NET-EX series sensors) |