This Thermocouple/RTD scanner is perfect for any multi-point temperature measurement application. The bright red LED display is easy to read, even at a distance. Splash-resistant front panel keypad is easy to clean & wipe down. The meter 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 meter display will cycle through all input channels at a user determined rate of 0.5~10 seconds. 24 VDC powered. A must have for multi-point temperature monitoring in the lab, control room, or dynamometer.
- - Accepts 8, 16, 24, or 32 Input Channels
- - Visible High and Low Temperature Alarm LEDs
- - Displays in Degrees Fahrenheit or Celsius
- - Screw Terminal Connections
- - Independent Dual HI/LO Temperature Alarms
| Thermocouple Input Types: | K, T, J, B, E, N, R, S (user selectable) |
| RTD Input Types: | PT100, CU100, CU50 (user selectable) |
| Resolution: | RTD (0.1° Res): -167.9 to +999.9°F (-189.9 to +596.9°C); TC (0.1° Res): -167.9 to +999.9°F (-199.9 to +999.9°C); TC (1° Res): -412 to 3271°F (-257 to 1800°C) |
| Display: | 4-digit LED, 0.56 inch (14 mm high) |
| Sample Rate: | 0.1 second per channel |
| Power: | 20 to 28 VDC @ 400 mA (nominal) |
| Dimensions: | 6.3 inch x 3 inch x 7 inch (160 mm x 80 mm x 182 mm) (Cutout: 6 inch x 3 inch (152 mm x 76 mm)) |
| Weight: | 2 pounds (900 grams) |
| Relay Contact: | 250 VAC @ 2 amps (resistance load) |
| Environment: | 0 to 50°C, 90% Max. RH (non-condensing) |
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Download PMD-MXT Series Temperature Scanner DatasheetThe digital thermocouple and RTD temperature scanner provides 8, 16, 24, or 32 individually configurable input channels within a single DIN-rail or panel-mount enclosure. This allows engineers to monitor multiple temperature measurement points from a single instrument, reducing the need for multiple single-channel devices and simplifying system wiring.
Each channel can be configured for a variety of sensor types, including Type J, K, T, or E thermocouples, as well as PT100 RTDs in 2-, 3-, or 4-wire configurations. This flexibility makes the scanner suitable for mixed-sensor installations where different measurement points require different sensing technologies.
Scanning Rate and Response in Process Monitoring
Multi-channel temperature scanners sample each input sequentially rather than simultaneously. As a result, the update rate for each channel decreases as the total number of channels increases.
For applications involving slow or steady-state thermal processes—such as furnace monitoring, HVAC systems, or general industrial equipment—this behavior typically does not impact performance. However, in applications where temperature changes rapidly, such as thermal shock testing or fast chemical reactions, it is important to verify that the per-channel update rate is sufficient to capture temperature changes accurately.
Alarm and Output Options
The scanner includes configurable alarm outputs that can be assigned to individual channels, groups of channels, or threshold-based conditions. This allows operators to monitor multiple measurement points and quickly identify fault conditions when temperature limits are exceeded.
Analog retransmission outputs are available to provide 4–20 mA signals for selected channels, enabling integration with PLCs or distributed control systems that require continuous analog temperature signals.
