5.6.2 SIS Configuration Requirements
Ensure the GWR transmitter parameters have been properly
configured for the specific application and probe.
Special consideration should be given to the following con-
figuration parameters:
FAULT
:
DO NOT
choose HOLD for this parameter as a
Fault will not be annunciated on the current loop.
PASSWORD
: The Password (default = 0) should be
changed to a specific value other than 0 to ensure the neces-
sary SIS Write/Lock protection.
The following list represents the parameter configuration
required for a Model 705 GWR transmitter intended to
measure overall product level in a SIL 2/3 application.
Please ensure that all Probe-specific parameters are correct
for the GWR probe being used.
PROBE MODEL = As indicated on probe nameplate
PROBE MOUNT = As indicated on probe nameplate
MEASUREMENT TYPE = Level Only
LEVEL UNITS = As indicated on probe nameplate
PROBE LENGTH = As indicated on probe nameplate
LEVEL OFFSET = As required by application
DIELECTRIC = As required by application. (Suggest 1.7–3
for typical hydrocarbon application)
LOOP CONTROL = Level
LOOP CONTROL MODE = Enabled
SET 4mA/SET 20mA = As required by application
DAMPING = As required by application (Default value is 1)
FAULT = As required by application (Default value is
22 mA—do not set to Hold).
BLOCKING DISTANCE = 0 inches
THRESHOLD = Fixed
5.6.3 Write Protection / Locking
Only authorized personnel should be able to change the
transmitter configuration in a device installed in a SIS system.
This requires setting a user password.
The ECLIPSE Model 705 is password protected with a
numerical password between 0 and 255. (Default = 0 means
password is disabled).
The default password must be changed so that password
protection is enabled in a SIS system.
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57-651 Eclipse
®
SIL Certified Safety Manual for Enhanced Model 705-51AX-XXX
