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  • For Full Fuel authority on engines from 250 - 2,000 HP
  • Integrated Actuator and control module
  • Expandable for use with the 30 M series controller


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.




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
I/O interface
CAN bus
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