Vaisala DMP5 Dew Point Probe for Processes up to 180 °C
The Vaisala DRYCAP® Dew Point and Temperature Probe DMP5 measures humidity directly in hot industrial processes with a long stainless-steel probe and adjustable installation depth.
Direct in-line measurement at process temperatures up to +180 °C
Dew point measurement range from −40 to +100 °C Td/f
Long probe reaches through insulation and thick process walls
Built-in Modbus RTU or integration with Vaisala Indigo transmitters
Connect to Indigo80 for portable display, diagnostics, configuration and field calibration
The Vaisala DMP5 is designed for direct in-line humidity and temperature measurement in hot industrial processes. Its long stainless-steel sensing probe and optional installation flange provide adjustable insertion depth, allowing the measurement point to reach through insulation and thick oven or dryer walls.
Direct process installation avoids the delay and potential measurement errors associated with extracting and conditioning a sample. The DMP5 is suitable for process temperatures up to +180 °C and provides its strongest measurement performance in hot and dry conditions up to approximately +140 °C.
DMP5 at a Glance
Primary application
Direct humidity and dew point measurement in hot processes
Probe-head temperature range
−40 to +180 °C
Dew point range
−40 to +100 °C Td/f
Dew point accuracy
±2 °C Td/f
Temperature range
0 to +180 °C
Temperature accuracy
±0.4 °C at +100 °C
Digital output
Modbus RTU over RS-485
Sensor
Vaisala DRYCAP® 180S
Why Choose the DMP5?
Direct measurement up to +180 °C: install the probe in the process instead of using a separate sampling and conditioning system.
Long adjustable probe: reach through insulation and position the sensing head at a representative depth inside an oven, dryer or duct.
Wide dew point range: measure from −40 to +100 °C Td/f across dry and moisture-rich process conditions.
Stable DRYCAP performance: automatic calibration and sensor purge help maintain accuracy and chemical resistance.
Industrial durability: the sensor tolerates condensation, oil, dust and most chemicals encountered in process environments.
Flexible connectivity: use the probe through Modbus RTU, an Indigo transmitter, Indigo80 or Vaisala Insight software.
Measurement and Operating Specifications
Property
Specification
Dew point measurement range
−40 to +100 °C Td/f
Dew point accuracy
±2 °C Td/f
Dry-to-wet response, 63% [90%]
5 seconds [10 seconds]
Wet-to-dry response, 63% [90%]
45 seconds [5 minutes]
Temperature sensor
Pt100 RTD Class F0.1 IEC 60751
Typical mixing-ratio range
0 to 1000 g/kg
Absolute-humidity range
0 to 600 g/m³
Probe-body operating range
−40 to +80 °C
Operating voltage
15–30 V DC
Probe material
AISI 316L stainless steel
Direct Measurement in Hot Processes
The probe can be inserted directly into an oven, dryer or process duct. Its length allows the sensing head to extend beyond insulation and boundary layers into the representative process gas. An optional mounting flange allows the insertion depth to be adjusted during installation.
Temperature note: the DMP5 can operate safely up to +180 °C, while its best dry-end measurement performance is achieved at process temperatures up to approximately +140 °C. Confirm the actual temperature and dew point combination before selection.
Fixed or Portable Measurement
Permanent Process Installation
The DMP5 can connect directly to an automation or monitoring system using Modbus RTU. Where a permanent display, analogue output, relay or Ethernet connection is required, pair it with a compatible Vaisala Indigo transmitter.
Connect the DMP5 to the Vaisala Indigo80 handheld indicator for portable display, data logging, diagnostics, probe configuration and field calibration. Indigo80 can also use temperature from a second compatible probe when an external temperature-compensation value is required.
Portable-use note: Indigo80 makes the display and service functions portable; the DMP5 normally remains mechanically installed for continuous high-temperature process measurement. DMP80 is a separate handheld probe designed specifically for portable dew point spot checks.
The DMP5 also works with Vaisala Insight PC software for configuration, diagnostics, temporary online monitoring and calibration support.
Typical Applications
Industrial drying ovens and chambers
Baking and food-processing equipment
Ceramics, timber and building-material dryers
Paper and pulp drying processes
Coating, curing and heat-treatment processes
Other hot ducts and process equipment requiring direct humidity measurement
Installation and Ordering Considerations
Before ordering, confirm the normal and maximum process temperatures, expected dew point, gas velocity, duct or oven-wall construction, insulation thickness, required insertion depth, mounting arrangement and electrical output.
Position the sensing head in representative process gas and away from stagnant pockets, direct product contact, condensate accumulation and locations exposed to mechanical impact. Allow sufficient external clearance for the probe body, cable and future service access.
Vaisala DMP Series Comparison
Choose the DMP probe according to the installation environment, process temperature, pressure and required dew point range.
Pressurised compressed-air and industrial-gas pipelines
−70 to +80 °C Td/f
Process pressure up to 40 bar absolute
Adjustable insertion depth with optional ball-valve installation
Quick selection: choose DMP1 for distributed dry-room monitoring, DMP5 for processes up to +180 °C, DMP6 for very hot processes up to +350 °C, DMP7 when installation space is limited, and DMP8 for pressurised pipelines up to 40 bar.
All five probes support Modbus RTU, compatible Vaisala Indigo transmitters, the Indigo80 handheld indicator and Vaisala Insight software. The final selection should also consider process gas, flow velocity, mounting access, required outputs and calibration arrangements.
DMP5 Videos
Technical Resources
Vaisala DMP5 Supplier and Technical Support in Malaysia
Seacom Process Instruments supplies and supports the Vaisala DMP5 Dew Point and Temperature Probe in Malaysia for industrial drying, ovens, food processing, building materials and other high-temperature applications.
Our team can assist with application review, insertion-depth and mounting selection, Indigo transmitter pairing, Indigo80 servicing arrangements, automation integration, commissioning and calibration planning.
Contact Seacom with your process temperature range, expected dew point, gas velocity, duct or oven construction, insulation thickness, required insertion depth and electrical output so we can recommend a suitable DMP5 arrangement.
Vaisala Indigo510 and Indigo520 Flagship Transmitters
The Vaisala Indigo500 Series provides flagship industrial measurement integration: choose Indigo510 for a simplified single-probe system or Indigo520 for full dual-probe capability.
Indigo510: one probe and two isolated analog outputs
Indigo520: two probes, four isolated outputs and two relays
Ethernet web interface and Modbus TCP communication
The Vaisala Indigo200 Series is the standard transmitter platform for one interchangeable Indigo-compatible smart probe, providing local display and practical automation-system connectivity.
Indigo201 with three analog outputs and two relays
Indigo202 with Modbus RTU and two relays
Colour display with numerical and graphical views
IP65 enclosure for industrial measurement applications
The Vaisala Indigo200 Series is the standard transmitter platform for one interchangeable Indigo-compatible smart probe, providing local display and practical automation-system connectivity.
Indigo201 with three analog outputs and two relays
Indigo202 with Modbus RTU and two relays
Colour display with numerical and graphical views
IP65 enclosure for industrial measurement applications
The Vaisala DRYCAP® Dewpoint Transmitter DMT152 is designed for measuring low dew point in OEM applications, even down to -80°C. The excellent long-term stability and reliability of its performance is based on the latest DRYCAP® polymer sensor technology. The DMT152 is an ideal choice for industrial applications where it is necessary to control very low humidity.
DMT152 is an ideal choice for the semiconductor industry, air and plastics dryers, glove boxes, dry chambers, pure gases, additive manufacturing, high voltage circuit breakers and other applications where it is critical to control humidity with high accuracy. DMT152 measures accurately and reliably also in the challenging combination of low humidity and hot air, which is typical in plastics drying.
Condensation-resistant Vaisala Dewpoint Transmitter DMT340 is designed for industrial low-humidity applications such as industrial drying, compressed air systems, semiconductor industry, dry rooms, baking ovens, and metal heat treatment to provide accurate and reliable measurement.
Vaisala Indigo510 and Indigo520 Flagship Transmitters
The Vaisala Indigo500 Series provides flagship industrial measurement integration: choose Indigo510 for a simplified single-probe system or Indigo520 for full dual-probe capability.
Indigo510: one probe and two isolated analog outputs
Indigo520: two probes, four isolated outputs and two relays
Ethernet web interface and Modbus TCP communication
The Vaisala Indigo300 is a rugged industrial transmitter for one Vaisala Indigo-compatible smart probe, providing local measurement display and up to three configurable analog outputs.
Its corrosion-resistant IP66 metal enclosure, flexible probe mounting and interchangeable probe design make Indigo300 suitable for humidity, temperature, dew point, CO2, moisture in oil and other demanding industrial measurements.
The Vaisala DMP1 Dew Point and Temperature Probe provides fast, dependable low-humidity measurement for dry rooms and moisture-sensitive manufacturing areas.
Dew point measurement range from −70 to +80 °C Td/f
Fast response for detecting changes across large dry rooms
Modbus RTU communication or integration with Vaisala Indigo transmitters
Connect to Indigo80 for portable display, data logging, diagnostics and field calibration
Suitable for battery production, semiconductor manufacturing and controlled dry environments
The Vaisala DRYCAP® Dewpoint Transmitters DMT345 and DMT346 are designed for humidity measurement in industrial drying applications with particularly high temperatures. The high temperature tolerance of the sensor allows direct measurement from hot process without the need for a sampling system and sample conditioning. The wide dynamic rage of the measurement in DMT345 and DMT346 is unique: Measurements can be made from -40 °C frost point up to +100 °C dew point, with dry-bulb temperatures ranging up to 350 °C.
The Vaisala Dewpoint and Pressure Transmitter DPT146 for Compressed Air makes monitoring compressed air simple and convenient. The Vaisala Dewpoint Transmitter for Compressed Air DPT146 measures both dew point and process pressure simultaneously, and is the ideal choice for anyone using or monitoring compressed air.
- The first transmitter that monitors both dew point and process pressure - A simple and convenient transmitter for monitoring of compressed air - Highly accurate humidity information thanks to online pressure-compensated dew point data - Proven sensor technology - Compatible with the Vaisala Hand-Held DM70 for easy spot checking, local - display and data logging - Pressure: 1…10 bar - Dew point: -60 ... +30 °C
Vaisala Dewpoint Transmitter DMT132 is an affordable dew point measurement instrument designed to verify the functionality of refrigerant dryers. The probe has excellent long-term stability and it is resistant to compressor oil. It is especially well suited for OEM dryer manufacturers.
Vaisala HUMICAP® Dewpoint Transmitter DMT132 is an affordable dew point measurement instrument designed to verify the functionality of refrigerant dryers. The probe has excellent long-term stability and it is resistant to compressor oil. It is especially well suited for OEM dryer manufacturers.
Vaisala Miniature size dew point transmitters DMT143 and DMT143L are ideal choices when you want to measure dew point accurately in small compressed air dryers, plastic dryers, additive manufacturing and other OEM applications. They are easy to integrate and can be used in Vaisala DM70 hand-held. The long version has replaced the DMT242.
The Vaisala DRYCAP® Dew Point and Temperature Probe DMP5 measures humidity directly in hot industrial processes with a long stainless-steel probe and adjustable installation depth.
Direct in-line measurement at process temperatures up to +180 °C
Dew point measurement range from −40 to +100 °C Td/f
Long probe reaches through insulation and thick process walls
Built-in Modbus RTU or integration with Vaisala Indigo transmitters
Connect to Indigo80 for portable display, diagnostics, configuration and field calibration
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