All operational and error messages are displayed in plain text. Up to 20 points can be input per curve. The unit's configuration can be changed on site through password-protected parameters. In the standard configuration, the unit has 2 curve sets (e.g. for oil and gas); 4 or 8 curve sets are available as options. The options of introducing corrections have been widely extended. This further improves the ability to implement special installations.
The unit has a PC interface. Curve and parameter data can be saved by means of a Windows 95-based program. As a result, the VMS can be remote-controlled and the curves represented graphically. A demo version of this remote control and remote display software is available here (download the demo version).
In addition, the VMS has a LAMTEC system-bus interface for linking to other new-generation LAMTEC instruments, such as LT 1 / LT 2 Lambda transmitters for measuring the O2 content of flue gas and for optimizing combustion.
The VMS can be connected to the control system via standard bus systems. The following protocols are available:
- Profibus DP
- Interbus-S
- Modbus
- CANopen
- SUCOnet-K
Other features:
- The last 10 faults are stored and can be called up at any time.
- Integral, fuel-referenced operating hours and start-up counter.
- Direct link to a Namur sensor for measuring revolution speeds in rev. speed control systems (optional)
- Optional integral output regulator with special functions, such as start-up and shutdown capabilities and weather control
All these innovations notwithstanding, the operating method has remained the same as in the VR.
Curve input is just as simple in the VMS as in its predecessor. A graphic representation of the most important options and functions is shown in the functional outline.
An example of the VMS in practical deployment is shown in Reference installation Zurich airport.
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