Description Of The Device - Fisher Fieldvue DLC3100 Safety Manual

DLC3100 SIS Digital Level Controller
April 2018
2.

Description of the Device

The Fisher DLC3100 SIS is a microprocessor-based digital level controller that measures and transmits change in liquid
level, or level of an interface between two liquids. Changes in the buoyancy of a displacer suspended in a vessel vary
the load on a torque tube assembly (249 sensors). The displacer with torque tube assembly and lever assembly
constitute the primary mechanical sensors. The angular rotational deflection of the torque tube is measured by the
instrument transducer, which consists of a magnet system moving over a Hall Effect sensor. In level measurement
mode, it is the proportion of displacer covered by liquid that produces the measured buoyancy.
DLC3100 SIS Default Settings
Application
Alarm Switch
Safety Recovery
Trip Alarm Current
Settings
2
Level
Interface
Low Alarm
High Alarm
Auto
Manual
Device Malfunction
Reference Voltage Failed
PV Analog Output Readback Limit Failed
Instrument Temperature Sensor Alert
Hall Sensor Alert
RTD Sensor Alert
Hall Diagnostic Alert
RTD Diagnostic Alert
Program Memory Failed
NVM Error
RAM Test Error Alert
Watchdog Reset Executed
PV HiHi Alert
PV LoLo Alert
Instruction Manual Supplement
Level
High Alarm
Manual
Enable
Enable
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Disable
Disable
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