Fisher dc 24v power supply DLC3010 Digital Level Controller for
pneumatic control valve
Introduction
DLC3010 digital level controllers are used with level sensors to
measure liquid level, the level of interface between two liquids,
or liquid specific gravity (density). They are communicating,
microprocessor-based sensing instruments. In addition to the normal
function of providing a 4 to 20 mA current signal, DLC3010 digital
level controllers, using the HART communications protocol, give
easy access to information critical to process operation.
Specification
Operating principle
The change of liquid level causes the change of buoy position,
which causes the rotation of torsion tube assembly. By detecting this rotation Angle, it is converted into the
corresponding 4-20mA signal output. The verification method is adopted 275 HART manipulator to verify.
The rotary motion moves a magnet attached to the lever assembly,
changing the magnetic field that is sensed by the Hall-effect
sensor. The sensor converts the magnetic field signal to a varying
electronic signal, which is processed digitally to provide
linearity corrections, sensitivity adjustment, and temperature
compensation
Performance characteristic
1.Simplified setup and calibration -- Meters can be configured to use
default sensor data, zero level offset, differential process SG,
and zero level/range only program for quick replacement of analog
transmitters (4-20mA output only).
2.Small process change response - high gain analog-to-digital
conversion is accurate and can measure small changes in the
measured variables. This enables the Fisher DLC3000 series digital level controllers to
be used in difficult level, interface, or density applications
3.Reduce temperature impact - Internal temperature sensors ensure
stable performance of the digital level controller regardless of
ambient temperature changes.
4.Other compensations - Instrumental measurement algorithms modify
small movements of the buoy as buoyancy changes in order to
calculate the true cage or container level. This provides additional accuracy on shorter pontoons.
5.Robust construction -- Mechanical guards in digital level
controllers are designed to help the controller withstand physical
damage common during installation or transportation without
compromising performance.
6.Easy maintenance - Field wiring connections in the chamber are
separated from electronic components. Prevents field wiring from bringing moisture into the housing and
affecting electronic components.
| Area Classification | Intrinsically Safe |
| Certifications | CSA, FM, ATEX, KGS |
| Communication Protocol | HART®, 4-20mA Analog |
| Process Control | Level |
| Position Control | DC24V |
Construction
The Fisher DLC3000 series digital level controller is
self-diagnosing and can detect errors that lead to inaccurate
measurements of measured variables. The instrument can also be
configured to indicate a high and low alarm for measured variables.
When an alarm or error is detected for measured variables, the
analog output signal will be higher or lower than normal 4 to 20 mA Range, depending on the location of the alarm jumper selected by
the user
Application areas: Used for measuring liquid level Interface liquid level or liquid
specific gravity (density) between two liquids
