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Volumetric gas corrector

The KET-CVI-100 is a Type 1 gas volume converter, data logger and communicator with GPRS/GSM/SMS modem, integrated in a single container and installed in a dangerous area, particularly in the zone classified as Zone 1.

It is designed to calculate gas volumes at base conditions, according to measurement conditions, temperature, pressure and compressibility of the gas.

Gas volumes are acquired through a low-frequency input (BF). The pressure and temperature transducers can be installed in a zone classified as Zone 0.

The KET-CVI-100 module complies with the UNI EN12405-1:2010 standard and meets the requirements of the MID according to Annex MI-002 (gas volume conversion devices) according to the Welmec 7.2 Issue 5 guide.

It complies with Resolution ARG/gas 155/08 and UNI-TS 11291.

The calculation of the compressibility factor of the gas is carried out according to ISO 12213-3 (SGERG-88) or by imposing a fixed user-programmable Zb/Z factor.

 

GENERAL SPECIFICATIONS
Protection Range IP65
Operative Temperature -30 ÷ +65 °C
CASE
Dimensions 190 x 130 x 100 mm (W x H x D)
Mounting Wall
POWER SUPPLY
Supply Voltage 12 VDC ±10% @ 500 mA
Connectors types 2xMR1
UPS
Battery Type 12 VDC lead battery
Approximate Battery Life 5 years
DATALOGGER FUNCTION
Memory Type Non-volatile
Data Storage Capacity Monthly Trace for 12 months; Daily Trace for 12 months; Four-hour Trace for 62 days
RS485 INTERFACE
Supported Protocols ModBUS RTU
Connectors types Screw terminal
DIGITAL INPUTS
Channels 3 general purpose (clean contact)
DIGITAL OUTPUTS
Channels 2 opto-isolator outputs, each configurable
ANALOG OUTPUTS
Output Type 4-20 mA passive configurable
MODEM
Supported Protocols SMS/GSM/GPRS/UMTS: POT or Snam Old
TEMPERATURE SENSOR
Measure Range -50 ÷ +300 °C
Precision PT1000 class A ±0,15 °C @ 0 °C
PRESSURE SENSOR
Measure Range 0.8 ÷ 80 bar absolute
CERTIFICATIONS
Referends Standard MID: 014/32/UE; R&TTE: 1999/5/EC; EMC: 014/30/UE
Approvals CE
Security ATEX: 014/34/UE
Metrology UNI/TS 11629:2016; can be installed in Zone 1
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