Available as |
Flow corrector based on state variables ERZ 2004 |
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Flow corrector based on density variables ERZ 2002 |
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Flow corrector based on calorific value ERZ 2102, ERZ 2104 |
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Differential pressure calculator ERZ 2112, ERZ 2114 |
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Multistream version ERZ 2404 |
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Application |
Parallel calculation of compressibility according to all established methods, (e.g., GERG 88 S, AGA 8, AGA NX 19 or Beattie-Bridgeman) |
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When carrying out corrections using density and standard density, the speed of sound effect is measured and calculated |
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PC-based computer |
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Parameters are freely programmable and remote parameterisable |
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Easy to operate using Internet browsers |
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DSfG control point function |
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Version ERZ 2404 for up to 4 gas meters |
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Optional plug-in Ex-i card for pressure, temperature and volume inputs |
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Gas rates function |
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Correction of meter’s performance curve (also using Reynold’s index) |
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Parameters, constants, limit values freely programmable |
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Freezing measuring and calculation values |
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Calibration |
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Plug-in modules, 19" plug-in |
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PTB-approved |
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Connections |
2-channel volume input |
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Digital and analogue inputs |
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Impulse and analogue outputs |
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DSfG interface according to DVGW G 485 |
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Modbus interface (ASCII/RTU/TCP) |
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Ethernet TCP/IP network interface |
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Display |
Electronic totalizers |
Supply voltage |
230/110 VAC, 24 VDC |
Ambient temperature |
20 °C to +55 °C |