ERZ 2000 Flow Computer Series
ERZ 2000
Micro-computer for Optional Flow Correction Available as
Flow corrector based on state variables ERZ 2004 Flow corrector based on density variables ERZ 2002 Flow corrector based on calorific value ERZ 2102, ERZ 2104 Differential pressure calculator ERZ 2112, ERZ 2114 Multistream version ERZ 2404
Application
Parallel calculation of compressibility according to all established methods, (e.g., GERG 88 S, AGA 8, AGA NX 19 or Beattie-Bridgeman) When carrying out corrections using density and standard density, the speed of sound effect is measured and calculated PC-based computer Parameters are freely programmable and remote parameterisable
ERZ_2000_00_DE ERZ_2000_00_GB ERZ_2000_00_PL ERZ_2000_00_RU
Operation & maintenance, spare parts
Easy to operate using Internet browsers
ERZ_2000_20_DE
DSfG control point function
ERZ_2000_20_DE
Version ERZ 2404 for up to 4 gas meters
ERZ_2000_20_DE
Optional plug-in Ex-i card for pressure, temperature and volume inputs
ERZ_2000_20_GB
Gas rates function
ERZ_2000_20_GB
Correction of meter’s performance curve (also using Reynold’s index)
ERZ_2000_20_RU
Parameters, constants, limit values freely programmable Freezing measuring and calculation values Calibration “on the fly” Plug-in modules, 19" plug-in PTB-approved Connections
Technical description
2-channel volume input Digital and analogue inputs Impulse and analogue outputs DSfG interface according to DVGW G 485 Modbus interface (ASCII/RTU/TCP) Ethernet TCP/IP network interface
Display
Electronic totalizers
Supply voltage
230/110 VAC, 24 VDC
ERZ_2000_20_GB
ERZ_2404_20_GB