Gas Volume Converter
Model: Corus
Hãng sản xuất: ITRON - Đức
CORUS is an electronic volume converter dedicated to commercial and industrial applications. It converts the actual volume measured by the gas meter to reference conditions. Thus, CORUS is a key element in the whole Itron chain, from the meter to billing data.
CORUS uses the measured working values of volume, pressure and temperature to provide:
» the converted volume
» the conversion factor
» the compressibility factor (several formulas available)
» a large database
» pulse retransmission
KEY BENEFITS
T, PT, PTZ Gas Volume Converter
» Conforms to European Standard EN 12405-1 and EN 12405-1/A1
» MID approval
» ATEX approval for installation in hazardous area (zone 0)
» Large integrated database
» Compressibility according to AGANX19,S-GERG, AGA 8 (gross or detailed methods) or Table of Z
» RS 232 and optical port for local / distant communication
» High accuracy on the whole temperature / pressure range
» Autonomous or external power supply
» Large graphic display
» Possibility to download new firmware in the field
» Internal optional slot for “Ex”:
• PSTN modem
• RS-485 ports (x2)
• 2nd pressure sensor input
Approvals
» MID:
- Module B – T10323
- Module D – PTB approval
» Metrology: approval according to EN12405-1 and EN12405-1/A1 (European Standard)
» ATEX: device of category 1 approved to be used in hazardous area zone 0, ia IIC T4 classification (zone1, ia e mbIIC T4 classification with internal PSTN modem)
» CE Marking: compliant with 89/336/EEC (EMC), 94/9/EC (ATEX) and 2004/22/EC (MID Directive)
Temperature Sensor
» Platinum PT 1000 (1000Ω at 0° C) probe
» Class A accuracy according to EN60751
» Casing: stainless steel tube for insertion into a thermowell (Ø 6 mm)
» Cable length: 2.5m or 0.8 m
Pressure Sensor
» Absolute pressure sensor designed for CORUS application (gauge pressure
sensors available on request)
» Silicon piezo-resistive sensor
» Overpressure up to 150 % of Pmax
» Available in 3 ranges:
- Dải đo từ 0.9 to 10 bar absolute
- Dải đo từ 3 to 30 bar absolute
- Dải đo từ 7.2 to 80 bar absolute
» Connection adapter: 1/4” BSP (Gas) male
» Typical Accuracy: <0.15 %rd over the whole pressure range