OVERVIEW
• Available in 8, 16, 24, or 32 channels
• Thermocouple Input version accepts any combination of J, K, T, E, B, N, R, or S
• RTD Input version accepts any combination of PT100, CU100, or CU50 (2- or 3-wire)
• Temperature units field selectable for °F or °C
• Auto or Manual scanning
• Adjustable Auto scan rate
• Dual Limit Alarm trip points adjustable per channel
• Latching or Non-Latching alarms
• RS-485 serial communication interface (USB-to-RS485 cable included)
The PMD-MXT series microprocessor-based temperature scanners provide continuous monitoring of up to 32 channels of thermocouple or RTD sensors. The large 14 mm tall digit red LED display is easy to read, even at a distance. Rows of LED annunciators warn of specific channel alarm conditions.
The scanner has 2 user-selectable HI/LO, HI/HI, or LO/LO alarm set points, configured through the front panel push buttons. During an alarm condition a front panel LED annunciator is enabled & an internal 2 Amp relay contact output is engaged.
The scanner's display will auto cycle through all input channels at a user determined rate of 0.5~10 seconds per channel.
24 VDC powered. A must have for multi-point thermocouple or RTD temperature monitoring in the Lab, control room, or Dynamometer.
Options:
TECHNICAL SPECIFICATIONS
| Thermocouple Input Types: | K, T, J, B, E, N, R, S (user selectable) |
| RTD Input Types: | PT100, CU100, CU50 (user selectable) |
| Display Resolution RTD (0.1°): | 167.9 to +999.9°F (-189.9 to +596.9°C) |
| Display Resolution TC (0.1°): | -167.9 to +999.9°F (-199.9 to +999.9°C) |
| Display Resolution TC (1°): | -412 to 3271°F (-257 to 1800°C) |
| Accuracy RTD: | +/-1.0% of full scale |
| Accuracy TC: | +/-0.5% of full scale |
| Channel Select Indication LEDs: | Red, 2-digit, 0.56 inch (14 mm) tall |
| Measured Value Indication LEDs: | Red, 4-digit, 0.56 inch (14 mm) tall |
| Microprocessor Sampling Rate: | 0.1 second per channel |
| Microprocessor A/D Resolution: | 16 bit |
| A/D Accuracy: | +/- 0.2% FS +/- 1 unit |
| Environment: | 0 to 60°C, 85% Max. RH (non-condensing) |
| Operating Temperature: | +32 to +125°F (0 to +50°C) |
| Front Bezel Rating: | IP51 |
| Power: | +20 to +28 VDC |
| Current Draw: | < 400 mA @ 24 VDC |
| Alarm Relay Contact Rating: | 2A @ 250 VAC |
| Case Dimensions: | 6.3" x 3" x 7" (160 mm x 80 mm x 182 mm) |
| Panel Cutout Dimensions: | 6" x 3" (152 mm x 76 mm) |
| Weight: | 2 pounds (900 grams) |
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Multi-Channel RTD Temperature Monitoring System for Industrial and Laboratory Applications
The PMD-MXT Series Digital Temperature Scanner is a high-performance, multi-channel temperature monitoring system designed for applications requiring accurate, real-time measurement across multiple RTD sensors. Available in 8, 16, 24, or 32 channel configurations, the PMD-MXT provides a flexible and scalable solution for industrial process control, laboratory testing, and data acquisition environments.
Engineered for reliability, ease of use, and clear visibility, this RTD temperature scanner delivers accurate readings, programmable alarms, and remote communication capabilities—all in a compact panel-mount design.
Multi-Channel Temperature Monitoring Made Simple
The PMD-MXT is designed to simplify multi-point temperature measurement by allowing users to monitor multiple RTD sensors from a single device.
Available in 8, 16, 24, or 32 input channel configurations
Automatically scans and displays each channel sequentially
User-selectable scan rate from 0.5 to 10 seconds per channel
This makes the PMD-MXT ideal for applications where multiple temperature points must be monitored efficiently and reliably.
Designed for RTD Temperature Sensors
The PMD-MXT RTD version is optimized for resistance temperature detectors, offering compatibility with:
PT100 RTDs
CU100 RTDs
CU50 RTDs
RTDs are widely used in industrial environments due to their high accuracy, stability, and repeatability. The PMD-MXT leverages these advantages to deliver consistent temperature measurements across all channels.
High Accuracy and Fine Resolution
Accurate temperature data is critical for process control and testing applications. The PMD-MXT provides:
Accuracy: ±1.0% of full scale (RTD inputs)
Resolution: 0.1° increments
Measurement range for PT100 RTDs:
–167.9 to 999.9°F (–189.9 to 596.9°C)
This level of precision ensures reliable data for critical monitoring and analysis.
Bright LED Display for Easy Readability
The PMD-MXT features a high-visibility LED display:
4-digit red LED display
0.56 inch (14 mm) digit height
Easy to read from a distance
The display cycles through each channel automatically, providing clear and immediate visibility of temperature readings.
Configurable Temperature Units (°F / °C)
The PMD-MXT allows users to select their preferred temperature units:
Fahrenheit (°F)
Celsius (°C)
This flexibility makes the device suitable for both domestic and international applications.
Programmable Alarm System with Relay Output
The PMD-MXT includes advanced alarm functionality to enhance system safety and control:
Dual alarm setpoints (user selectable)
Configurable as HI/LO, HI/HI, or LO/LO alarms
Visual alarm indication via front panel LEDs
Internal relay output (2A @ 250 VAC)
When a temperature exceeds or falls below a set threshold:
The LED annunciator activates
The relay output engages to trigger external devices
This feature is essential for automated control and safety systems.
RS-485 Communication for Remote Monitoring
The PMD-MXT includes RS-485 communication capability:
Enables remote data acquisition and monitoring
Supports integration with industrial control systems
Allows centralized monitoring of multiple temperature points
This makes the device ideal for networked industrial environments and control rooms.
User-Friendly Interface and Operation
The PMD-MXT is designed for ease of use:
Front panel keypad for configuration and setup
Simple navigation through channels and settings
Splash-resistant keypad for easy cleaning and durability
This ensures quick setup and reliable operation in both industrial and laboratory environments.
Flexible Sampling Rate for Different Applications
The PMD-MXT allows users to adjust the scan rate:
0.5 to 10 seconds per channel
This flexibility enables:
Faster updates for dynamic processes
Slower scanning for stable systems or large channel counts
Compact Panel-Mount Design
The PMD-MXT is designed for easy integration into control panels:
Dimensions: 6.3" x 3" x 7"
Panel cutout: 6" x 3"
Weight: ~2 lbs
The compact design allows for efficient use of panel space while providing robust functionality.
Reliable Power and Industrial Performance
The PMD-MXT operates on:
Power supply: 20 to 28 VDC
Current draw: ~400 mA
It is designed for industrial environments:
Operating temperature: 0 to 50°C
Humidity: up to 90% RH (non-condensing)
Ideal for a Wide Range of Applications
The PMD-MXT Series is suitable for:
Factory automation systems
Process control environments
Laboratory and R&D testing
Dynamometer and engine testing
Multi-point temperature monitoring systems
As highlighted in the datasheet, it is “a must-have for multi-point temperature monitoring in the lab, control room, or dynamometer.”
Scalable Channel Options
The PMD-MXT Series is available in multiple configurations:
8-channel model
16-channel model
24-channel model
32-channel model
This scalability allows users to select the exact number of inputs needed for their application.
Why Use a Multi-Channel Temperature Scanner?
A multi-channel temperature scanner offers several advantages over individual temperature displays:
Centralized monitoring of multiple sensors
Reduced hardware complexity
Simplified wiring and installation
Improved system visibility and control
The PMD-MXT combines these benefits into a single, easy-to-use device.
Key Features at a Glance
Supports 8, 16, 24, or 32 RTD input channels
Compatible with PT100, CU100, and CU50 RTDs
High accuracy and 0.1° resolution
Bright 4-digit LED display
Configurable °F / °C units
Dual programmable alarm setpoints
Relay output for alarm control
RS-485 communication for remote monitoring
Adjustable scan rate (0.5–10 seconds per channel)
Compact panel-mount design
A Complete Solution for Multi-Point Temperature Monitoring
The PMD-MXT Series Digital Temperature Scanner provides a reliable, scalable, and easy-to-use solution for monitoring multiple RTD temperature inputs. Its combination of accuracy, flexibility, and advanced features makes it an ideal choice for industrial and laboratory applications.
Optimize Your Temperature Monitoring System
Whether you are managing a complex industrial process, conducting research, or monitoring multiple temperature points in real time, the PMD-MXT delivers the performance and reliability you need.
Contact us today to learn more or configure the right multi-channel temperature scanner for your application.