OVERVIEW
• Small Size ~ 1" high x 2" wide x 3" deep
• Max travel "Peak hold" display capture capability
• High travel set-point alarm LED with internal relay contact
• Plug-and-play compatible with all of our LPPS series Shock Absorber Suspension Travel Sensors
• Accepts one sensor
• Inch / mm selectable
• Screw terminal connection
• Visible HIGH alarm LED + Relay output
• Display Max Peak Hold Button
• Powers from 9 to 16 VDC
The PMD1XT Series gauge has advanced operations including max temperature recall, high temperature alarm, and analog retransmitting output. The gauge’s high resolution digital microprocessor ensures accurate temperature measurement. The PMD1XT Series gauge features a bright four digit LCD display with selectable decimal point position that is easy to read, even in direct sunlight and an industrial grade screw terminal strip allows for quick and easy connection of power and signal wires. Setup and programming of your PMD1XT gauge is simple using the three front panel push buttons. The gauge includes a fast response feedback alarm that gives a visual warning alert, plus an internal relay is triggered that can be used to control an external device, such as a fan or buzzer. You can easily access the max temperature recall feature to display the peak temperature stored in memory. All of our gauges are manufactured from high quality materials for optimum performance in your demanding application.
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Options:
TECHNICAL SPECIFICATIONS
Number of Inputs: | 1 |
Input: | 0 to 5 VDC (default) |
Other Input Types: | J, K & T thermocouple, RTD, Voltage, mA (user selectable) |
Display Range: | -999 to 9999 |
Accuracy: | +/-0.2% of reading |
Display Resolution: | -.999 to .9999, -9.99 to 9.999, -99.9 to 99.99, -999 to 9999 |
LED Display: | Red, 4-digit, 0.275 inch (7 mm high), 0.5 second update rate |
Microprocessor Sampling Rate: | 4 samples/second |
Microprocessor A/D Resolution: | 16 bit |
A/D Accuracy: | +/- 0.2% FS +/- 1 unit |
Environment: | 0 to 50C, 85% Max. RH (non-condensing) |
Operating Temperature: | +32 to +125°F (0 to +50°C) |
Front Bezel Rating: | IP51 |
Power: | 9 to 16 VDC (24 VDC powered available upon request) |
Current Draw: | < 100 mA @ 24 VDC |
Alarm Relay Contact Rating: | 1A @ 30VDC |
Case Dimensions: | 1" x 2" x 3" (24mm x 48mm x 75mm) |
Panel Cutout Dimensions: | 1.77" x 0.87" (45 x 22 mm)(1/32 DIN) |
Weight: | 2.1 ounces |
DOCUMENTS & DOWNLOADS
VIDEOS
About - Mini Digital Display Gauge for Shock Absorber / Suspension Travel Sensor
Reading Voltage from a Linear Potentiometer on a Digital Display
Linear potentiometer suspension travel sensors produce a 0 to 5 VDC output proportional to shaft position — a straightforward signal that many digital panel meters can display, but not all display it in a useful format. The PMD1XT is configured for 0–5 VDC input in this application and is pre-programmed to display travel in inches or millimeters, selectable via the front panel buttons. This eliminates the scaling calculation that would otherwise require programming a generic process meter with span and offset values to convert the 0–5 V range into a meaningful distance readout.
The 16-bit A/D converter provides high internal resolution across the input range, supporting fine measurement resolution when scaled appropriately. The 4-sample-per-second processing rate, combined with a 0.5-second display update, allows the gauge to update quickly enough to track suspension movement during operation without excessive display flutter from high-frequency noise. This is the same PMD1XT platform used in EGT and CHT pyrometer applications, but configured specifically for the 0–5 V potentiometer input and calibrated for length units rather than temperature.
Peak Hold, High-Travel Alarm, and Relay Output
The most practically useful feature for suspension development is the peak hold function. During a test session, the gauge captures and retains the maximum travel position reached and stores that value in non-volatile memory. At the end of a run, the engineer can press the peak hold recall button to read the maximum shock displacement — a direct indication of whether the suspension reached its bump stop, whether droop was limited by geometry, or where the suspension is operating within its travel range under real track conditions.
The programmable high-travel alarm activates a front-panel LED indicator and closes an internal relay contact when travel exceeds the set threshold. The relay is rated at 1A @ 30 VDC and can be used to drive an external warning device such as a piezo buzzer or indicator light. This is particularly useful during initial vehicle setup when confirming that the suspension is not bottoming out, as the audible alarm provides immediate feedback without requiring the driver to monitor the display.
Physical Format and Power Supply Compatibility
The 1/32 DIN form factor (1" × 2" × 3" case, 1.77" × 0.87" panel cutout) fits into standard instrument panel openings and is compatible with the same aluminum enclosure housing used across the PMD1XT product family. Power input is 9–16 VDC for standard 12V vehicle systems, with a 16–30 VDC option available for higher voltage applications such as trucks and marine systems.
Current draw is under 100 mA, making the gauge suitable for battery-powered or limited-capacity electrical systems. The front bezel carries an IP51 ingress protection rating, meaning it is protected against vertically falling water droplets and is intended for use in enclosed or cockpit-style installations.