Overview
Model 4215C-LVDT/MODBUS Smart Indicator with Ethernet MODBUS Connectivity (Replaces Cat#536870, Model 4215B-LVDT/MODBUS)
MODBUS connectivity when used with the Model 4215C-LVDT/MODBUS Smart Indicator can provide a simple, reliable, vendor-neutral way to get precise LVDT measurement data into PLCs, SCADA, and automation systems without extra hardware or complexity.
Model 4215C-LVDT/MODBUS 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/MODBUS 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/MODBUS 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/MODBUS 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 ASCII commands
- USB communications port
- Ethernet MODBUS Connectivity via rear RJ45 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 units on a single serial communication bus!
- DC strain gage channel (s)
- Quadrature encoder channel (s)
dataView-LVDT Software Ready!
- 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.
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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!
How the Model 4215C-LVDT/MODBUS Indicator Works:
Signal Conditioning & Excitation
LVDT sensors produce very low-level AC signals that vary with displacement. The Model 4215C-LVDT/MODBUS Smart Indicator generates the excitation signal and conditions the returned signals so they can be accurately measured and converted.
Conversion & Display
The Model 4215C-LVDT/MODBUS instrument’s internal A/D converter (24-bit) turns the conditioned LVDT signal into a precise digital measurement, which is displayed in engineering units (e.g., millimeters, inches).
Control & Output
The Model 4215C-LVDT/MODBUS can:
- Send analog outputs to data acquisition systems or PLCs.
- Trigger relay outputs when measurements cross user-set limits.
- Communicate digitally via RS-232/RS-485/USB for logging or automation.
Optional PC software, Catalog# 511040 - dataView Software, graphically displays real-time measurements and supports logging and analysis.
Why Model 4215C-LVDT/MODBUS Indicator?
High Precision and Stability
With 24-bit resolution and strong linearity, it provides very accurate and repeatable displacement measurements — far better than simple analog gauges or basic sensors.
Integrated Signal Conditioning
Instead of needing separate LVDT signal conditioning modules, this device includes it all in one unit, simplifying system design.
Flexible Outputs and Control
It integrates analog, digital, and serial outputs, making it easy to connect to PLCs, data paper printers, PCs, or automation systems without extra converters.
Automation and Monitoring
Built-in limit detection and communication interfaces allow it to be part of automated test systems or industrial process controls.
Model 4215C-LVDT/MODBUS Indicator - Industries & Applications
This type of instrument is used wherever precise position or displacement measurement is critical, particularly in control and test systems:
Manufacturing & Quality Assurance
- Precision gauging stations.
- Part inspection fixtures with LVDTs to check dimensions.
- Automated test cells where pass/fail decisions are based on precise measurements.
Test & Measurement Labs
- Material testing rigs (e.g., tensile/compression tests).
- R&D setups requiring accurate position feedback.
Automation & Process Control
- Integrating displacement feedback into PLC-based automation.
- High-speed quality monitoring in manufacturing lines.
Automotive & Aerospace Engineering
- Actuator position monitoring.
- Structural deflection measurement.
- Component performance testing using LVDTs and precise readouts.
Typical Use Cases
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Application
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Why This Device Is Useful
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Precision gauge fixtures
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Precise dual LVDT measurement & limit detection
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Automated inspection systems
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High-resolution outputs for PLC integration
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Displacement feedback in machines
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Analog and digital interfacing
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Material testing
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Real-time display and logging
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Production quality control
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Repeatable, accurate measurements
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MODBUS connectivity is used because it’s a simple, reliable, and widely supported way to integrate measurement devices like the 4215C-LVDT/MODBUS Smart Indicator into industrial control systems. It’s been around for decades and is still extremely common in factories, test labs, and automation systems.
MODBUS is an industrial communication protocol used to exchange data between:
- Sensors & instruments
- PLCs
- HMIs
- SCADA systems
- PCs and data loggers
Where MODBUS connectivity is typically used:
- Manufacturing floors
- Test stands with motors and hydraulics
- Harsh industrial environments
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.
