PAJ WIO 200B, Руководство пользователя

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PAJ Sensor A/S • Grundtvigs Allé 163 • DK-6400 Sønderborg
Tel: +45 74 43 71 81 • Fax: +45 74 43 71 91 • CVR: 3459-1229 • www.paj.dk • e-mail: paj@paj.dk
APPROVALS: ISO 9001, ISO 14001, ISO 13485, IEC 61340-51 & IPC-A-610 CLASS 3
03-01-0501-CRJ-04 Side 8 af 53
Failure indication
Internal function failure will be indicated by activating both alarm relays at
the same time, or indicated as defined in the NAMUR NE43.
Internal failures includes:
 Sensor reading out of range.
 Sensor reading CRC error.
 Unstable Sensor reading.
NAMUR NE43 is a German fault detection standard for 4-20mA analogue
signals. It allows the user to know if there is a fault within the instrument,
by sending analogue signal below 4mA and/or above 20mA. In accordance
with NAMUR NE43, the failure is indicated by:
 Fault indicated by analogue output =<2,0 mA