4 Operation
MANUAL TME400-VCF · EN08 · July, 01
st
2021
4.1.2.
Display and coordinate system
The main totalizer is displayed in normal operating mode. The other display values
can be selected with the operating buttons. After approx. 1 minute, the TME400
switches back to the main totalizer.
If the display is dark, the TME400 is in energy-saving mode, where the display is
completely switched off. The incoming pulses are processed and the outputs are ac-
tuated.
The display value is shown again by pressing any operating button.
Any arbitrary position in the coordinate system, which is identified by letters and num-
bers, can be reached with the arrow keys.
Example:
E02, for example, stands for the compression factor. This value is calculated after en-
try of relevant gas parameters via different gas models, which are listed below.
4.1.3.
Parameter protection
All custody-transfer parameters are protected by the (sealed) calibration but-
ton.
There are different access authorizations for the parameters with which unauthorized
changes are suppressed. The different access rights are assigned to the coordinates
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