As a main component of the full authority engine management system KRONOS 30 M the Gas Metering Control Unit ELEKTRA (GMCU-XX) can be used as a fully integrated stand-alone system for flow control and in an extended version as a lambda control device for stationary gas engines.
The Gas Metering System contains a very flexible Control Unit based on the well- proven digital controller DC-6. Freely configurable I/O allows the user to customise the unit to almost any application. CAN bus permits the communication with other HEINZMANN devices or with external systems.
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| Input voltage range | 18 up to 32 V |
| Max. current | 6 A |
| Ambient temperature | -20 up to 80 °C |
| Storage temperature | -20 up to 85 °C |
| Gas inlet pressure | 40 up to 250 mbar (relative) |
| Delta pressure inlet/outlet |
40 up to 250 mbar |
| Flow accuracy |
± 5% for the entire flow range |
| I/O interface |
CAN bus Serial 3 digital in 1 digital out 2 multifunction ports: 0 up to 5 V; 4 up to 20 mA; PWM; 1 temp. input 1 speed pickup |
| Air humidity |
Up to 98 % at 55 °C |
| Vibration | max. 2 mm with 10 up to 20 Hz max. 0,24 m/s with 21 up to 63 Hz max. 7 g with 64 up to 400 Hz |
| Shock | 50 g, 11 ms half sine wave |
| Protection grade |
IP 55 |
| EMC | 89/336/EEC and 95/54/EEC |
| Weight | GMCU50: 20 kg GMCU85: 35 kg |