Fixed Gas Detection Systems A future-proof central system for monitoring measured values from up to 128 transmitters Modbus TCP Web access via Ethernet 8 internal relays and up to 192 external relays MADE IN GERMANY

Fixed Gas Detection Systems – GMA400 GMA400 Controller A future-proof central system for monitoring measured values from up to 128 transmitters Fixed gas detection systems, consisting of one or more central controllers and transmitters, are used in applications requiring continuous monitoring of toxic gases, combustible gases and vapors or oxygen. In situations which make standard solutions hit their limits because of the number of monitored measuring points or zones, the GMA400 controller provides new options for creating complex gas detection systems. Up to 16 analog or 128 digital GfG transmitters...

Fixed Gas Detection Systems – GMA400 128 transmitters (16 of them analog or ACDC) can be connected to a GMA400 regardless of the monitored types of gas or measuring ranges, the measuring method or ATEX environment. Add-ons G MA400-AT24 (up to 5 on each GMA400) Connect 24 analog or ACDC-capable transmitters to your controller decentrally G MA200-RT (up to 8 on each GMA400) Upgrade your controller with 16 freely programmable relays D isplay module (up to 16 on each GMA400) Read out 4 measured values and activate 4 relays wherever you need them M 21 series with Modbus (up to 64 on each GMA400) Minimize...

Fixed Gas Detection Systems - GMA400 System Funktions » R1-R8 » Z1-Z8 » ON » SRV/SRQ » VL » A1-A4 » FLT/GMA » FLT/TRM » LAN 10/100 » LAN ACT » Lock LED Status Indications There are 28 LEDs on the GMA400's front which indicate the different statuses of the system, facilitating quick checks: Internal relay status (active/not active) Zone Status Operating Status Service/Service requirements Ventilation control status Controller fault Transmitter fault Network connectivity status Active network transmission Color Display with Plain Text Information The 2.4'' color display (320 x 240 pixels) raises...

Fixed Gas Detection Systems – GMA400 Configuration and Data Logging GMAConfig-Software The GMA400 controller is configured using a PC and the GMAConfig software. They are connected to the controller via a USB cable (or by network access). To prevent unauthorized access, there is an authentication process requiring you to enter a user name and password. GMAConfig software for parameterizing the controller, the transmitters and the relays GMA400 web interface displaying the data logger and selection of measuring points Datenlogger The GMA400’s internal data logger records all alarms, measured values...

Fixed Gas Detection Systems – GMA400 Adding analog transmitters and external relays In many industries, it is not uncommon to see extensive systems covering large distances. To reduce the wiring effort, groups of up to 24 transmitters can be connected to an AT24 module using three-wire lines (4-20mA). The GMA400-AT24 transmits the measured values of the analog measuring points to the GMA400 via Modbus connection. The distance between the GMA400AT24 and the controller can be up to 1200m. ACDC-capable transmitters, such as the CC33 for combustible gases or the IR22F for CO2, offer the unique benefit...

Fixed Gas Detection Systems – GMA400 Additional Relays for Safety Measures The more complex the gas detection system and the more expansive the area it needs to monitor, the more important it is to use enough relays and ensure short transmission distances between them and devices they need to activate, such buzzers, alarm lights or valves. In addition to the GMA400’s eight internal relays, the controller is able to address up to 128 further freely adjustable relays with a floating changeover contact each, using eight external relay modules. Each of the up to 16 display modules per GMA400 activates...

*Number of analog and ACDC capable transmitters, can be expanded to 128 with GMA400-AT24 modules function available soon GfG Gesellschaft fur Geratebau mbH KlonnestraBe 99 | 44143 Dortmund | Germany E-Mail: [email protected] © GfG - Gesellschaft fur Geratebau mbH - 2024 | All information in this brochure is subject to technical changes due to further development. Controller GMA400/DE/DE/06-2024/Printed in Germany.