OVERVIEW
PMD3XT HAS BEEN DISCONTINUED
• Replaced by model PMD4XT
• Size ~ 1.9" high x 3.8" wide x 4.5" deep (1/8 DIN)
• Max and Min travel recall functions
• High and Low travel set-point alarm LEDs with dual internal relay contacts
• Remote push button input for zeroing of displayed value
• Accepts one sensor
• Inch / mm scalable
• Screw terminal connection
• Visible HIGH and LOW alarm LEDs + Dual Relay outputs
• Display Max Peak Hold and Min Valley Hold Button
• Powers from 10 to 48 VDC
The PMD3XT series panel meter display is an ideal solution for industrial and laboratory applications. This high performance display is exceptionally flexible and affordable. The 0.56” (14 mm) tall bright LED display is easy to read, even at a distance. The housing is a 1/8 DIN size panel-mount durable plastic polycarbonate case. All power and signal connections are convenient removable screw-clamp type connectors. Setup and scaling is intuitive using the front panel keypad. Available options include Dual Alarm Contact Relays (8 Amp), Isolated Analog Output (0 to 10 VDC or 4 to 20 mA), and RS-232 Serial Communications. The internal micro processor A/D sample rate is a fast 60 samples per second, with an accuracy of 0.01%. The LED display update rate is 3.5 times per second. The PMD3XT is plug-and-play compatible with all of our ILPS series Linear Variable Inductive (LVIT) Position Sensors as well as all of our LPPS series Linear Potentiometer Position Sensors.
Options:
TECHNICAL SPECIFICATIONS
| Number of Inputs: | 1 |
| Input: | +/- 5 VDC, 0 to 5 VDC, +/- 10 VDC, 0 to 10 VDC, 4 to 20 mA (user selectable) |
| Display Range: | -99999 to 99999 |
| Accuracy: | +/-0.1% of full scale |
| Display Resolution: | -.99999 to .99999 thru -99999 to 99999 (decimal point is user selectable) |
| LED Display: | Red, 5-digit, 0.56 inch (14.2 mm high), 0.25 second update rate |
| Microprocessor Sampling Rate: | 60 samples/second |
| Microprocessor A/D Resolution: | 16 bit |
| A/D Accuracy: | +/- 0.1% FS +/- 1 count |
| Environment: | 0 to 50C, 85% Max. RH (non-condensing) |
| Operating Temperature: | +32 to +131°F (0 to +55°C) |
| Storage Temperature: | -40 to 185°F (-40 to +85°C) |
| Front Bezel Rating: | NEMA-4X (when front panel mounted) |
| Power: | 10 to 48 VDC (95 to 240 VAC powered available upon request) |
| Current Draw: | < 125 mA @ 24 VDC |
| Alarm Relay Contact Rating: | 8A @ 30VDC, Form C |
| Case Dimensions: | 1.9" x 3.8" x 4.5" (48mm x 96mm x 112mm) |
| Case Material: | Black polycarbonate |
| Panel Cutout Dimensions: | 1.72" x 3.62" (45 x 92 mm) (1/8 DIN) |
| Weight: | 9.0 ounces |
DOCUMENTS & DOWNLOADS
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LVIT & Potentiometer Input Display in Desktop Enclosure
The PMD3XT Single Channel Digital Panel Meter in a desktop enclosure is a high-performance, flexible display solution designed for precise position and process measurement in industrial, laboratory, and testing environments. Engineered for compatibility with LVIT (Linear Variable Inductive Transducer) and linear potentiometer sensors, the PMD3XT provides accurate, real-time data visualization along with advanced alarm, scaling, and control features.
With a bright 5-digit LED display, intuitive front-panel programming, and optional relay and analog output capabilities, the PMD3XT delivers a powerful and user-friendly solution for monitoring linear position and process variables.
Designed for LVIT and Potentiometer Sensor Applications
The PMD3XT is specifically optimized for use with:
LVIT linear position sensors
Linear potentiometer position sensors
This makes it an ideal display solution for:
Position measurement systems
Test stands and laboratory setups
Industrial automation and process monitoring
Motion and displacement tracking
The unit is plug-and-play compatible with HGSI/Alliance Sensors LVIT and potentiometer product lines, simplifying integration and reducing setup time.
Desktop Enclosure for Flexible Installation
Unlike traditional panel-mounted displays, this version of the PMD3XT is housed in a durable desktop enclosure, providing:
Easy benchtop operation
Portable measurement capability
Quick integration into test environments
No panel cutout required
The enclosure dimensions (~2.9" H x 6.3" W x 9.8" D) make it compact yet stable for use in laboratory and industrial settings.
Bright, High-Visibility LED Display
The PMD3XT features a large, high-contrast LED display:
5-digit display with ±99999 range
0.56 inch (14 mm) digit height
Red LED for excellent visibility
The display is easy to read from a distance, making it suitable for both close-up laboratory use and industrial environments. As noted in the datasheet, the display updates multiple times per second for real-time feedback.
High Accuracy and Fast Sampling Performance
The PMD3XT is designed for precise measurement and fast response:
Accuracy: ±0.1% of full scale
A/D resolution: 16-bit
Sampling rate: 60 samples per second
Display update rate: ~3.5 times per second
This ensures accurate, stable readings even in dynamic applications where signals change rapidly.
Flexible Input Compatibility
The PMD3XT supports a wide range of analog inputs, making it adaptable to many sensor types:
±5 VDC, 0–5 VDC
±10 VDC, 0–10 VDC
4–20 mA
This flexibility allows the meter to be used not only with LVIT and potentiometer sensors, but also with a variety of process signals.
Intuitive Front Panel Programming
Setup and configuration of the PMD3XT are simple and user-friendly:
Front-panel keypad for programming
Easy scaling from inches to millimeters or custom units
Adjustable decimal point positioning
Quick calibration and setup
As highlighted in the datasheet, configuration is designed to be intuitive, allowing users to quickly tailor the display to their application.
Max/Min Tracking and Peak Hold Functions
The PMD3XT includes built-in measurement tracking features:
Maximum (peak) value recall
Minimum (valley) value recall
Dedicated buttons for viewing stored values
These features are especially useful in:
Motion analysis
Testing and validation
Monitoring system limits
High and Low Alarm Setpoints with Relay Outputs
The PMD3XT supports programmable alarm functionality:
High and low setpoint alarms
Visual alarm indication via front panel LEDs
Dual relay outputs (Form C, 8A rating)
These alarms can be used to:
Trigger warnings or indicators
Activate control systems
Provide safety interlocks
The dual relay outputs provide flexibility for controlling external devices.
Remote Zeroing Capability
The PMD3XT includes a remote input for zeroing the displayed value:
Allows external push-button reset
Simplifies operation in test environments
Enables quick recalibration without accessing the front panel
This feature is particularly useful in dynamic measurement setups.
Optional Advanced Output and Communication Features
The PMD3XT can be configured with optional features for enhanced system integration:
Analog output: 0–10 VDC or 4–20 mA
Serial communication: RS-232 (additional interfaces available depending on configuration)
These options allow the meter to:
Interface with PLCs and data acquisition systems
Provide retransmission of measured values
Enable remote monitoring and control
Durable Industrial Design
The PMD3XT is built for reliable operation in demanding environments:
Operating temperature: 0°C to 55°C
Humidity: up to 85% RH (non-condensing)
Durable polycarbonate housing
Removable screw terminal connectors for easy wiring
When used in panel-mounted configurations, the meter offers NEMA-4X (IP65) protection; the desktop enclosure version maintains the same rugged internal design.
Flexible Power Options
The PMD3XT is powered by:
10 to 48 VDC standard input
Optional AC-powered version available
Low current draw (<125 mA at 24 VDC) ensures efficient operation in a wide range of systems.
Typical Applications
The PMD3XT Digital Panel Meter is ideal for:
Linear position measurement systems
Industrial automation and control
Laboratory and R&D testing
Motion and displacement monitoring
Sensor calibration and validation
Its flexibility makes it suitable for both permanent installations and portable test setups.
Why Use a Digital Panel Meter for Position Sensors?
Digital panel meters provide:
Clear, real-time display of sensor output
Improved accuracy compared to analog gauges
Programmable scaling and units
Alarm and control functionality
Integration with modern control systems
The PMD3XT enhances these capabilities with high-speed sampling and flexible configuration.
Key Features at a Glance
Compatible with LVIT and potentiometer sensors
Desktop enclosure for portable use
5-digit bright LED display
High accuracy (±0.1% FS)
Fast sampling (60 samples/sec)
Max/min tracking and peak hold
High/low alarm setpoints with relay outputs
Remote zeroing input
Optional analog output and serial communication
Wide DC power input (10–48 VDC)
Made for industrial and laboratory environments
A Complete Display Solution for Position Measurement
The PMD3XT Single Channel Digital Panel Meter in a desktop enclosure provides a powerful, flexible, and easy-to-use solution for displaying and monitoring position sensor data. Its combination of accuracy, configurability, and advanced features makes it an essential tool for engineers, technicians, and system integrators.
Optimize Your Measurement System
Whether you are monitoring linear position, performing laboratory testing, or integrating sensors into a control system, the PMD3XT delivers the performance and reliability needed for accurate, real-time data visualization.
Contact us today to learn more or configure the right panel meter for your application.