The Alpa MOD LED8 Control Unit Module is a device designed to reads the signals in 4 – 20 mA standard, reads signals exceeding the warning alarm thresholds, indicates gas detectors damage (e. g., breaking a wire) and works with optical – acoustic signaller.

Industrial systems widely use communication systems based on the RS-485 transmission standard. The serial nature of the RS-485 bus networks is the reason that a critical failure at any location of the network may disable communication within the entire system. Since Gas Safety Systems are very sensitive to perfect efficiency of communication, even potential, critical or probable failures of data bus lines may be really hazardous to safe operation of the system. It is why application of devices capable of isolating any defective fragment of the network, such as MOD SEP 2 modules, is beneficial and efficient.

Sigma MOD AO is a device designed for collaboration with gas detectors and other associated appliances to make up an overall system Sigma Gas developed to provide gas safety on the supervised area.

The Control Unit Module Sigma  MOD DO is designed to present the status of relay outputs.

The Sigma MOD DRV device is the basic module that is incorporated into Control Units of the Sigma Gas system. First and foremost it is designed to integrate all components and appliances of the system into an efficient and reliable Gas Safety System.

Sigma Control H is an advanced Control Unit dedicated to large and/or complex gas detection systems. It is intended to control all the devices connected to it and to integrate them into one Sigma Gas system.

Sigma Control L is an advanced control unit designed for small gas detection systems (max. 20 gas detectors in one alarm zone). Responsible for controlling all the devices connected to it, and integrates them into a single system Sigma Gas. Its advantage is to provide two unique, transparent and consistent outlook presentation.

The Control Unit Module Sigma MOD LCD is a component of the Gas Safety System Sigma Gas. The module’s functions include i.a.: communication with gas detectors, control of visual and sound indicators and display of system status to the operator. This device is designed to work with Sigma MOD LED.

The Control Unit Module Sigma MOD LED is a component of the Gas Safety System Sigma Gas. The module’s functions include i.a.: communication with gas detectors, control of visual and sound indicators and display of system status to the operator. Cooperate with Control Unit Module Sigma MOD DRV and Sigma MOD LCD it is possible to create a system dedicated for several alarm zones with a configuration dedicated to the customer's needs.