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Z26
Characteristic correc-
tion
Z27
Sensor type 1
Z28
Sensor type 2
Z29
Volume unit
With 1-channel measurements (0, 1, 2, 3, 4), the Z04 and Z05 pulse
comparison is not activated.
An entry for sensor type 2 is superfluous and has no further signifi-
cance.
Volume metering mode 8: 1 Channel Start/Stop Mode 2
If the external contact input 3 is closed (or opened), this additional
mode 2 triggers a start (or stop) for the start/stop totalizer during this
time.
The LF output and the current output are deactivated for this period
(4 mA) and no pulses are output (main totalizers stop).
In case of an error, the pulses are counted in the error totalizers and
current and pulses are output.
If the TME 400 is supplied with a current supply, the TME 400 ena-
bles a characteristic correction via a polynomial. This correction
must be activated with coordinate Z26. With this polynomial correc-
tion, the corresponding percentage deviations of the turbine meter
from a reference standard are determined for fixed percentage flow
rate values. From these deviations, a polynomial function which ide-
ally reflects the curve running through these points is calculated. The
coefficients of the polynomial A-2, A-1, A0, A1 and A2 are adjusted
by the manufacturer in the coordinates B10 to B14 or can be entered
there when the manufacturer of the turbine meter provides these val-
ues.
Note
The HF output pulses (X3 pulse 1) are always uncorrected!
With an active characteristic curve correction, no HF pulses
are output.
0
Off (default)
1
On
0
Reed sensor
1
Wiegand sensor (default)
2
External
Settings are possible, but only make sense in 2-channel operation.
Settings changed here have no effect in 1-channel operation,
0
Reed sensor
1
Wiegand sensor (default)
2
External
0
m
3
(Default)
1
cf
Manual TME400-VMF · EN11 · January 22nd, 2024
4 Operation
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