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8 Installation
122
This register contains 16 USM status bits.
• Bit-0 = 1: The unit "Volume" is set unequal „m3".
• Bit-1 = 1: The unit "Flow" is set unequal „m3/h".
• Bit-2 = 1: The unit "Speed" is set unequal „m/s".
If one of these three bits equals 0 the requesting ERZ 2000-NG gets the message
that the data of the registers 8000 to 80CE are invalid and may not be used for the
external DSfG instance F. In this case the USM is mis-configured and the device-F
will not work. Bits 3 to 15 are currently not in use.
9084 Qt
Register 9084 is linked to USM coordinate D-24.
This register contains a characteristic value of the USM which is dependent from
Qbmax and Qbmin.
• Qt = 0,20 x Qbmax If 00 <= (Qbmax / Qbmin) < 30
• Qt = 0,15 x Qbmax If 30 <= (Qbmax / Qbmin) < 50
• Qt = 0,10 x Qbmax If 50 <= (Qbmax / Qbmin)
• Qt = 0,10 x Qbmax If Qbmin = 0
32792 signal acceptance
Register 32792 is linked with USM coordinate C-6 Performance.
Calculating the signal acceptance
The signal acceptance in BA-13 is equal to meter performance, which is given
from coordinate C-6. This term is defined in chapter 4, Section 4.1 General
description.
Manual USM GT400 · EN10 · May 2021
Fig. 8.29: Additional register
Fig. 8.30: Additional register
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