RMG TME400-VM, Operating Manual

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1 Introduction
Manual TME400-VMF · EN07 · December, 7
th
2020
32
According to DIN30690-1, the maximum operating pressure for non-flammable gases
may not exceed 16 bar; for flammable gases, EN746-2 defines a maximum pressure
of 5 bar for DN25 and 2 bar for DN40. Usually these pressure restrictions are speci-
fied on a plate on the pipe fittings.
1.4.2.9.
Measuring accuracy
The following error limits apply within the permissible measuring range:
Measurement deviation in the range of
DN Qmin
[m³/h]
Qmax
[m³/h] MR Qmin-0,2 x Qmax
[%]
0,2 x Qmax-Qmax
[%]
25 2.5 25 1:10 3 2
40 6 70 1:12 3 1.5
80 13 160 1:12 3 1.0
50 6 100 1:16 3 1.5
80 16 250 1:16 3 1.0
25 400 1:16 3 1.0
100 25 400 1:16 2 1.0
40 650 1:16 2 1.0
80 13 250 1:20 3 1.5
20 400 1:20 3 1.5
100 20 400 1:20 3 1.5
32 650 1:20 3 1.5
Note
With a slightly smaller measuring range of 1:16, turbine meters are also avail-
able in nominal diameters DN 80 and DN 100, which have an increased accu-
racy with a deviation of max. ±1% in the range of 0.2 x Q
max
-Q
max
.
150 32 650 1:20 2 1
50 1000 1:20 2 1
80 1600 1:20 2 1
200 80 1600 1:20 2 1
125 2500 1:20 2 1
250 125 2500 1:20 2 1
200 4000 1:20 2 1