10
Design
SIL (Safety Integrity Level)
The Dräger PIR 7000 / Dräger PIR 7200 gas transmitter complies with the SIL standards
EN 61508 and EN 50402 and is SIL Level 2 certified.
Parameterisation of the Dräger PIR 7000 / Dräger PIR 7200 is an essential aspect of the
functional safety. Settings such as full-scale deflection, calibration values or the configuration
of the lower explosion limit (LEL) significantly influence the measured value output of the gas
transmitter.
To protect the gas transmitter parameterisation against unauthorised or accidental changes,
the access for device configuration can be locked (SIL lock). In this case, a parameterisation
of the device can only be carried out after a SIL passcode has been entered via Dräger
CC-Vision GDS Software, via HART
®
DD/DTM based software or via HART
®
handheld
terminal.
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