RMG ERZ2000-NG, Operating Manual

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Appendix
Manual ERZ 2000-NG · EN07 · 2019, May 13th
393
F) Optional Ex input board
F.1 Instructions for the installer
Code:
Type : EX1-NAMUR-2 / V1 or V2
II(2)G [Ex ia] IIC
TÜV 06 ATEX 553139 X
Tamb = -
20°C …. +60°C
Data: see EC Type approval certificate
Use:
Use of the assembly takes place in combination with the device ERZ2000-NG on-
ly. The assembly is provided for galvanic isolation of MSR signals, such as 20 mA
current loops or the adjustment and/or standardization of signals. The different
intrinsically safe current circuits are provided to operate intrinsically safe field de-
vices within explosion-prone areas. The applicable laws and directives for the use
and/or planned use must be observed. Version V1 is the standard version for a 1-
rail flow computer, version V2 is designed for a 2-rail flow computer (optional ex-
pansion level).
Multiple transmitters/sensors can be connected to the EX1-NAMUR-2 board.
2 volume transmitters, with pulse sensors similar to DIN 19234,
1 electronic totalizer (ENCO),
1 pressure transducer (4 to 20mA or HART),
1 temperature sensor (4 to 20mA or HART),
optionally 1 temperature sensor (PT100 4-wire).
Installation and commissioning in connection with Ex areas:
Installation and commissioning must be carried out exclusively be specially trained
and qualified personnel. The device is designed with protection rating IP20 in ac-
cordance with EN 60259 and appropriate measures must be taken in unfavorable
environmental conditions that exceed contamination degree 2. External heating
due to solar radiation or other heat sources must be prevented. The installation of
intrinsically safe current circuits must be carried out according to the applicable
installation regulations. For connection of intrinsically safe field devices with the
intrinsically safe current circuits of the corresponding devices of the ERZ2000-NG,