USM GT400 Ultrasonic Gas Meter

Device for Custody-transfer Metering

  • Suitable starting with absolute pressure pabs = 1 bar
  • High stability against turbulences thanks to 6 direct measuring paths, arranged as an X in 3 parallel plains
  • Tested according to TR G13/OIML
  • Air calibration with high pressure test according to TR G7
  • High flow rates (up to 40 m/s) – that means smaller pipe sizes may be used
  • Exchange of sensors without recalibration
  • High measuring accuracy
  • Fully encapsulated, robust, dirt-repellent titanium sensors
  • Connection to RMG Flow Computer via RS485.
  • Operation / parametrization via the diagnosticsoftware RMGViewUSM.
PTB / MID approved
Metrological approvals MID, PTB Ex approvals
ATEX (Exd), IECEx, CSA
Max. admissible pressure pmax
100 bar (higher pressure on request)
Max. flow rates
Qmax from 1,000 m³/h to 108,000 m³/h
Nominal diameters
DN 100 – DN 600 as standard
(other nominal diameters on request)
Measuring range
max. 1 : 130
Flange connections
PN 10, PN 16, ANSI 150, ANSI 300, ANSI 600
(other flanges on request)

Sizes and technical parameters

Pipe sizes

DN

Face-to-face dimension**

in mm

Min. volumetric flow rate

Qmin

in m³/h

Max. volumetric flow rate

Qmax

in m³/h

Meter sizes

G

100 (4“)

300

8

1000

250/400/650

150 (6“)

450

20

2400

650/1000/1600

200 (8“)

600

32

4200

1000/1600/2500

250 (10“)

750

50

6600

1600/2500/4000

300 (12“)

900

70

9400

2500/4000/6500

400 (16“)

1200

120

15000

4000/6500/10000

500 (20“)

1500

180

23500

6500/10000/16000

600 (24“)

1200

260

34000

10000/16000/25000

700 (28“)*

1200

420

52000

10000/16000/25000

750 (30“)*

1500

460

60000

10000/16000/25000

800 (32“)*

1500

550

68000

16000/25000/40000

900 (36“)*

1500

700

86000

16000/25000/40000

1000 (40“)*

1500

850

108000

25000/40000/65000

*) Nominal diameters > DN 600 (24“) on request.
**) Measuring lines that are subject to national standards & weights legislation must have a straight inlet pipe 10 x DN length or 5 x DN length with a Sprenkle straightener and an outlet pipe 3 x DN length.

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