The Vaisala DRYCAP® Miniature Dew Point Transmitter, model code DMT143 V2CEB1X2A0ASX, is 100% designed, engineered, and manufactured in Finland by Vaisala Oyj – the world’s definitive standard in precision humidity, dew point, and gas measurement instrumentation. This specialized configuration is purposefully engineered to operate in extreme, ultra-dry gaseous environments, meeting the stringent moisture surveillance criteria mandated by electric vehicle battery dry rooms, semiconductor fabrication cleanrooms, and high-performance industrial desiccant air drying systems.

The core differentiator of the DMT143 V2CEB1X2A0ASX is its integration of Vaisala's patented DRYCAP® 180D polymer thin-film sensor, combined with intelligent on-line auto-calibration routines. Specifically optimized for deep-drying cycles, the DRYCAP® 180D facilitates an extended analog output scaling range from -100 °C to +20 °C Td (-148 °F to +68 °F Td) with an industrial standard 4...20 mA signal (featuring a 3.6 mA diagnostic fault state). The automatic calibration function continually self-adjusts the sensor's baseline calibration online, entirely mitigating zero-point drift—a chronic failure mode of conventional aluminum oxide (Al2O3) probes. Furthermore, the DRYCAP® technology boasts 100% liquid water condensation immunity, autonomously drying out and regaining laboratory-grade precision immediately once dry conditions resume, completely eliminating costly downtime and probe replacements.

Mechanically robust, the unit is configured with a heavy-duty UNF 5/8"-18 process thread rated for working pressures up to 50 bar, protected by a high-efficiency standard sintered metal filter (P/N: DRW010335SP) that completely isolates the sensing element from abrasive pipeline particulates. This specific model features an integrated diagnostic alarm LED calibrated to illuminate when dew points rise above -40 °C Td, providing operators with immediate visual alert of desiccant degradation or regeneration failures. Backed by RS-485 serial communication with native Modbus RTU protocol and a compact 0.3 m open-lead cable (P/N: HMP50Z032SP), the transmitter delivers seamless, space-saving integration into modern OEM machinery, PLC networks, and centralized SCADA infrastructure.

• Manufacturer: Vaisala Oyj
• Origin: 100% Finland
• Product Series: Miniature Dew Point Transmitter
• Model / Configuration Code: DMT143 V2CEB1X2A0ASX
• Sensing Element: Vaisala DRYCAP® 180D (Polymer thin-film capacitive sensor optimized for ultra-dry measurements)
• Patented Feature: Continuous on-line auto-calibration and 100% water condensation immunity
• Factory Scaled Analog Output Range: -100 °C to +20 °C Td (-148 °F to +68 °F Td)
• Typical Dew Point Measurement Range: -70 °C to +60 °C Td
• Measurement Accuracy: ±2 °C Td (in typical compressed air networks)
• Response Time (63% [90%]): 5 seconds [15 seconds] (from -60 °C to -20 °C Td)
• Operating Pressure Rating: 0 to 50 bar absolute (Custom pressure calibration setting supported)
• Process Gas Compatibility: Compressed air and non-corrosive inert gases (N2, Argon, dry CO2)
• Analog Signal Output: 4 ... 20 mA (3-wire current loop), 3.6 mA diagnostic error state
• Digital Serial Interface: RS-485 with native industrial Modbus RTU protocol
• Integrated Alarm LED: Visual indication setpoint active at -40 °C Td
• Mechanical Process Connection: UNF 5/8"-18 Thread
• Sensor Protection Filter: Standard sintered filter cap (P/N: DRW010335SP)
• Electrical Connection: 0.3 m (1.0 ft) industrial cable with open leads (P/N: HMP50Z032SP)
• Standard Package: DMT143 standard unit package with Vaisala identity and multilingual guide
• Housing Material: AISI 316L Stainless Steel
• Enclosure Rating: IP66 (NEMA 4)
• Operating Temperature Range: -40 °C to +60 °C (-40 °F to +140 °F)
• Supply Voltage: 18 ... 28 VDC
• Recommended Recalibration Interval: 2 years
• Applicable Industries: Lithium-ion EV battery dry rooms, semiconductor and microchip fabrication, twin-tower heatless & heated desiccant air dryers, high-purity laser nitrogen skids, inert glove box isolation enclosures, fiber optic manufacturing, medical gas bottling, and electrical high-voltage SF6 switchgear maintenance.