Overview
Model 4215C-LVDT Smart Indicator (REPLACES Catalog #512115 Model 4215-L)
Model 4215C-LVDT Indicator is an intelligent microprocessor-based instrument designed for the measurement and control of dual channel LVDT (Linear Variable Differential Transformer) measurement fixtures. It combines two simultaneous sample LVDT channels, print capabilities and RS232/485 serial communication into a versatile platform that can be customized to deliver the most powerful and affordable instrumentation in its class.
The ESL Model 4215C-LVDT Advanced Digital LVDT Meter provides all excitation and signal conditioning necessary to operate dual LVDT expansion measurement fixtures. The average extension is computed automatically and displayed. The ESL Advanced Digital LVDT Meter also features analog outputs, limit switching, individual unit conversion and a two-line display. Factory options support mixing and matching of strain gauge and LVDT sensor inputs.
Whether you are upgrading an existing system or implementing a new one, the Model 4215C-LVDT brings you the accuracy, reliability and repeatability needed to meet the most demanding applications.
Need something similar? Call us at 401-943-1164 or email eslab@electrostandards.com.
We have design engineers onsite to custom design to your exact requirements!
Features:
- Fully Bipolar Range /-999,999 Display
- 24-Bit Resolution
- Linearity 0.05%
- Two channel Simultaneous read
- 2-line X 20-character vacuum fluorescent display
- Plug and Play TEDS-Tag® Auto LVDT Identification
- User input text label on second line of display
- Auto Setup for 25 Model 4215C-LVDT units
- Functions Included: peak / valley / hold / tracking / peak reset.
- Quad Limits Output: independent, isolated solid state relays control AC or DC signals
- Six user-selectable filters
- Tri-state limit display: on, off, disabled.
- Automatic display unit conversion: in, cm, %
- D/A Output: /-10V std; /-5V, 0-5V, 0-10V std. Per Request
- Direct analog amplifier output
- RS485 std. upon request
- Full operation and calibration via RS232
- 5-point linearization
- Includes sum, difference, average of two channels.
- Analog output RS232 ASII Commands
- USB Communications Port
Optional Features (Not Included):
- 4 - 20 mA output
- Rugged carry handle
- dataView-LVDT Software
- Custom-programmed math functions & algorithms
- Communicate with up to 254 Model 4215C-LVDT units on a single serial communication bus!
- DC strain gage channel (s)
- Quadrature encoder channel (s)
- Ethernet Modbus Connectivity (See Cat. No. 538959)
dataView-LVDT Software Ready! (Optional - Not Included)
- Standard unit is dataView-LVDT Ready for graphical user interface and connection to PC.
- dataView-LVDT software operates at full speed for single and dual-channel real time data acquisition.
The Model 4215C-LVDT Smart Indicator is a digital measurement and control instrument that works with LVDT sensors (Linear Variable Differential Transformers). It conditions, measures, displays, and outputs displacement/position data from these sensors — usually in precision test, measurement, or automation systems.
Key Features
- Dual-channel LVDT measurement (two sensors concurrently).
- Signal conditioning & excitation to power LVDT sensors and convert their output into usable engineering units.
- 24-bit resolution and high linearity for accurate results.
- Multiple outputs: analog voltages, limit-switch relays, serial communications (RS-232/RS-485), USB, and optional Ethernet/Modbus.
- Advanced functions like peak/valley detection, tracking, unit conversion, multi-filtering, total/average of channels, and customizable math.
- Human-readable display and optional PC software for visualization and logging.
How It Works
- Sensor Interface:
LVDTs are AC-excited position/displacement sensors. When an object moves, the LVDT’s output changes in proportion. The Smart Indicator provides the excitation signal and conditions the weak outputs so they’re clean and linear.
- Processing & Display:
A microprocessor inside converts the conditioned signals into engineering units (inches, mm, %, etc.), applies filtering or math, and displays results in real-time.
- Output & Control:
It can send analog outputs to PLCs or data acquisition systems, trigger digital limits, or communicate via serial/Ethernet for logging, monitoring, or automation tasks.
Why Use This Device
Precision & Reliability
LVDTs and smart indicators like the 4215C offer very high resolution, stability, and repeatability — essential for tight-tolerance measurements where simple displacement sensors (like potentiometers) aren’t accurate enough.
Flexibility
With dual channels, multiple output options, and configurable math/limits, it reduces the need for extra external electronics in a test or control system.
Integration
Supports standard industrial communications (RS-232, RS-485, USB, optional Modbus/Ethernet), so it can plug into automation systems, data loggers, or PC software easily.
Industries That Use It
This kind of instrument is common anywhere precise displacement or position measurement is needed, especially when integrated with control or automated monitoring:
Manufacturing & Quality Control
- End-of-line inspection systems
- Precision gauge fixtures
- Dimensional measurement and part validation
Test & Measurement Labs
- Calibration stands
- Materials and tensile testing
- Research labs requiring sub-millimeter displacement data
Automation & Process Control
- Real-time motion feedback to PLCs
- Limit-based control actions (alarms, pass/fail decisions)
- Complex machinery position monitoring
Automotive & Aerospace
- Component fatigue and strain testing
- Actuator stroke measurement
- Precision assembly tooling
Heavy Industry / Energy
- Position monitoring in hydraulics/mechanics
- Process feedback in oil & gas or power systems
In general, any test, control, or monitoring application where precise, reliable measurement of movement or position matters can benefit from this device.
Comparison to Basic Sensors
|
Feature
|
Basic Potentiometer
|
LVDT Smart Indicator
|
|
Accuracy
|
Low-medium
|
High
|
|
Repeatability
|
Moderate
|
Excellent
|
|
Environmental robustness
|
Limited
|
Better (no contact wear)
|
|
Automation integration
|
Minimal
|
Strong
|
|
Signal conditioning
|
Often external needed
|
Built-in
|
APPLICATION NOTE: How to make your own Plug and Play Load Cell System!
Order Cat No 501574, TEDS-Tag® ID Component to make your Plug and Play Load Cell System!
All data switches, data communication products, and data acquisition products are subject to a one year warranty against manufacturing defects. The limit of ESL liability is limited to the cost of the ESL product provided.
*Prices online are subject to change and verification.
All ESL products are available for export.
