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Upper and Lower Threshold, (menus 13 and 14) and the accompanied delays (menus 15
and 16).
Initially the solid-state output is disabled for both signal output and fault/failure output
(menu 17). When the solid-state switch is to be operated as fault/failure output (for
example, for a separate shutdown system), we recommend disabling the operation for
signal output (select Disabled Mode in menu 17 on page 71). There is no delay in the
operation for fault/failure output.
Notes:
•
The solid-state output should only be used in circuits where the current is limited
by a proper load.
•
Due to the limited switching capabilities of the solid-state switch component, an
auxiliary relay must be applied when switching high-current/high-voltage
apparatus.
Switch Protection (Diode)
WARNING: When the solid-state switch is activating an external
relay, protection diodes must be connected in the correct polarity
across the relay coil to prevent possible switch/relay damage
resulting from inductive spikes generated by the relay coil.
Factory Settings
The SITRANS LC500 has a number of default factory settings. If the required settings for
the application are known, the settings can be modified during final testing.
Note:
To restore factory settings, use menu item 12 (see
for details).
Settings:
Setting
ID
TV0 Units
TV0 UL
TV0 LL
TV0 URV
TV0 LRV
AO1
TAG
DESCRIPTOR
MESSAGE
DATE
SENSOR SERIAL NUMBER
FINAL ASSEMBLY NUMBER
Page 36
SITRANS LC500 – OPERATING INSTRUCTIONS
Factory Settings
Description
Has a unique serial number
PF
3300 pF [switch position (0)C]
1.666 pF [switch position (0)B]
3300 pF [switch Position (0)F]
0.00 pF [switch Position (0)E]
4-20 mA is 0-100% [position (0)8]
"customer input data via HART"
"customer input data via HART"
"Siemens Milltronics P I"
"customer input data via HART"
"customer input data via HART"
"customer input data via HART"
on page 73
7ML19985GE04
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