DeFelsko Positector DPM Dew Point Meters for Environmental Monitoring

Description
Price: $ 675.00 up to $ 1,175.00
The DeFelsko Positector DPM Dew Point Meters for Environmental Monitoring measures and records climatic parameters including: Relative humidity, air temperature, surface temperature, dew point temperature and difference between surface and dew point temperatures.
Available in Standard and Advanced Models and with Built-In and Separate probes
Universal body accepts all PosiTector SPG, DPM, UTG and 6000 probes

Measures and records climatic conditions including: Relative humidity, air temperature, surface temperature, dew point temperature, wind speed and difference between surface and dew point temperatures.

Ideal for surface preparation as required by ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7 and US Navy NSI 009-32.

  • All readings are constantly updated and displayed simultaneously
  • Solvent, acid, oil, water, and dust resistant – weatherproof
  • Fast response precision sensors provide accurate, repeatable readings
  • Auto Log mode records environmental parameters at user selected time intervals
  • PosiTector interchangeable platform – attach any PosiTector probe to a single gage body
  • USB, WiFi, and Bluetooth connectivity to PosiSoft PC, Mac, and Smartphone software
  • Certificate of Calibration showing traceability to NIST included (Long Form)

Conforms to ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7 and US Navy NSI 009-32


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Photo Gallery
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Features
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Simple

  • All readings are constantly updated and displayed simultaneously
  • No need to consult complex tables or use a slide rule calculator
  • Alarms indicate when climate conditions are unsuitable for painting
  • RESET feature instantly restores factory settings

Durable

  • Solvent, acid, oil, water and dust resistant - weatherproof
  • Shock-absorbing, protective rubber holster with belt clip
  • Two year warranty on gage body AND probe

Accurate

  • Fast response precision sensors provide accurate, repeatable readings
  • SmartTrend™ Indicators identify rising, falling or stable readings
  • Certificate of Calibration included showing traceability to NIST (Long Form)
  • Conforms to national and international standards including ISO and ASTM

Versatile

  • Auto Log mode records environmental parameters at user selected time intervals
  • Celsius/Fahrenheit switchable
  • Selectable display languages
  • High Contrast LCD with backlit display
  • Flip display enables right-side-up viewing
  • Uses alkaline or rechargeable batteries (built-in charger)

Powerful

  • Hold function freezes the display allowing measurements to be manually recorded
  • Sealed USB port for fast, simple connection to a PC and to supply continuous power. USB cable included.
  • Software Updates via web keep your gage current
  • Screen Capture – record and save image into USB flash memory for record keeping and review
  • Software Solutions for viewing, analyzing & reporting data
  • Every stored measurement is date and time stamped

See probe compatibility:


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Specifications
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SpecificationsRangeAccuracyResolution
Surface Temperature–40˚ to 80˚ C± 0.5˚ C0.1˚ C
80˚ to 190˚ C± 1.5˚ C0.1˚ F
–40˚ to 175˚ F± 1˚ F0.1˚ C
175˚ to 375˚ F± 3˚ F0.1˚ F
Infrared Surface emperature*–70˚ to 380˚ C± 1˚C + 1%**0.1˚ C
–94˚ to 716˚ F0.1˚ F
Air Temperature–40˚ to 80˚ C± 0.5˚ C0.1˚ C
–40˚ to 175˚ F± 1˚ F0.1˚ F
Humidity0 to 100%± 3%0.1%
Wind Speed†0 to 20 m/s± 3% Full Scal0.1 m/s
0 to 44 mph0.1 mph
Dew Point–60˚ to 80˚ C± 3˚ C‡0.1˚ C
–76˚ to 175˚ F± 5.4˚ F‡0.1˚ F

* DPM IR models only
** At 23˚ C ambient
† DPM A models only
‡ dependent on RH.


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Models
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Standard Models

Includes ALL features as shown on left plus

  • Storage of 250 readings per probe—stored readings can be viewed or downloaded
DPM1DPMIR1DPMS1DPMA1DPMD1
Probe Desccription
Integral ProbeIntegral Probe with Infrared Surface Temp. SensorIntegral Probe with Cabled Surface Temp. SensorIntegral Probe with Wind Speed SensorCabled Probe with 1/2" NPT Threads
Measuring Parameters
Surface Temp.Surface Temp.Surface Temp.Surface Surface Temp.---
Air Temp.Air Temp.Air Temp.Air Temp.Air Temp.
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
Dew Point Temp.Dew Point Temp.Dew Point Temp.Dew Point Temp.Dew Point Temp.
Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.---
---------Wind Speed---


Advanced Models

Includes ALL features as shown on left plus

Storage of 100,000 readings in up to 1,000 batches

  • Storage of 100,000 readings in up to 1,000 batches and sub-batches
  • SmartBatch™ allows entry of user-defined parameters and criteria to comply with various standards and test methods
  • Live graphing of measurement data
  • Onscreen Batch Annotation—add notes, change batch names and more with built-in QWERTY keyboard
  • WiFi technology wirelessly synchronizes with PosiSoft.net and downloads software updates
  • Bluetooth 4.0 Technology for data transfer to a mobile device running the PosiTector App or optional portable printer. BLE API available for integration into third-party software.
  • Integrate with third-party software, drones, ROVs, PLCs, and robotic devices using several industry-standard communication protocols
DPM3DPMIR3DPMS3DPMA3DPMD3
Probe Desccription
Integral ProbeIntegral Probe with Infrared Surface Temp. SensorIntegral Probe with Cabled Surface Temp. SensorIntegral Probe with Wind Speed SensorCabled Probe with 1/2" NPT Threads
Measuring Parameters
Surface Temp.Surface Temp.Surface Temp.Surface Surface Temp.---
Air Temp.Air Temp.Air Temp.Air Temp.Air Temp.
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
Dew Point Temp.Dew Point Temp.Dew Point Temp.Dew Point Temp.Dew Point Temp.
Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.---
---------Wind Speed---

Probe Only

PosiTector gage bodies are compatible with the full range of PosiTector 6000, 200, DPM, IRT, SPG, RTR, SST, SHD, BHI and UTG probes.

PRB DPMPRB DPMIRPRB DPMSPRB DPMAPRB DPMD
Probe Desccription
Integral ProbeIntegral Probe with Infrared Surface Temp. SensorIntegral Probe with Cabled Surface Temp. SensorIntegral Probe with Wind Speed SensorCabled Probe with 1/2" NPT Threads
Measuring Parameters
Surface Temp.Surface Temp.Surface Temp.Surface Surface Temp.---
Air Temp.Air Temp.Air Temp.Air Temp.Air Temp.
Relative HumidityRelative HumidityRelative HumidityRelative HumidityRelative Humidity
Dew Point Temp.Dew Point Temp.Dew Point Temp.Dew Point Temp.Dew Point Temp.
Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.Surface Temp. minus Dew Point Temp.---
---------Wind Speed---
  • *Wet Bulb Temperature displayed/recorded on PosiTector Advanced (3) models only
  • Note: Newer probes may not be compatible with older gage bodies.


lineSoftware
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PosiSoft Desktop

Powerful desktop software for downloading, viewing, printing and storing measurement data. No internet connection required.

  • Simple, intuitive user interface
  • Import readings directly from the gage via USB or from legacy PosiSoft desktop versions
  • Synchronize measurement data including readings, notes and pictures to and from PosiSoft.net

Click to enlarge image

PosiSoft Custom

Easily create reports from your measurement data in seconds

Generate custom, professional PDF reports

Include inspection information such as on-site pictures, screen captures, notes and more to communicate important details

Create and save multiple custom layouts as templates – insert cover pages, add logos/images, and select font and point size

Select the information to include for each product type – charts, histograms, readings, time stamps and more

Compile multi-batch reports from one or more probes and instrument types


Click to enlarge image


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lineComplete Kitline

All gages come complete with environmental sensors, protective rubber holster with belt clip, wrist strap, 3 AAA batteries, instructions, nylon carrying case with shoulder strap (DPM/DPMA/DPMD), hard shell carrying case (DPMS), protective lens shield,Long Form Certificate of Calibration traceable to NIST, USB cable,two year warranty


lineDownloadsline

DeFelsko PosiTector DPM Dew Point Meters for Environmental Monitoring - Instruction Manual
DeFelsko PosiTector DPM Dew Point Meters for Environmental Monitoring - Kit Manual
DeFelsko PosiTector DPM Dew Point Meters for Environmental Monitoring - Data Sheet


lineF.A.Q. (Frequently Asked Questions)line

Do your instruments require any formal training for use? Do you offer ‘demo’ models?

No. Our instruments are designed for simple operation, feature easy-to-use menus, both full and quick instruction manuals, and helpful videos. In lieu of demonstration models, we provide unlimited technical support via telephone and/or email, and a limited 30-day money back guarantee.

Is the PosiTector DPM calibrated at the factory?

The PosiTector DPM arrives fully calibrated and ready to measure. A Long-Form Certificate of Calibration traceable to NIST or PTB is included, which documents actual readings taken by your instrument at our calibration laboratory on standards traceable to a national metrology institute. Beware of ‘Certificates’ or ‘Certificates of Conformance’ offered by competitors. These typically do not include actual instrument readings, and are often insufficient to meet common quality requirements.

Does the PosiTector DPM provide a wet-bulb temperature measurement?

Yes. When combined with either a PosiTector Advanced gage body or PosiTector SmartLink wireless probe adapter, the DPM will indicate a wet-bulb temperature measurement.

Is the PosiTector DPM suitable for applications with low or negative dew point temperatures?

The PosiTector DPM provides accurate dew point readings (±3° C) down to -40° C.

Dew point is a calculated value, based on temperature and humidity. At low negative dew point temperatures, the calculation is highly dependent on relative humidity and changes of ±3% RH (the tolerance of the PosiTector DPM’s humidity sensor) can have a significant impact on the dew point temperature.

The Dew Point (Td) Accuracy page details the accuracy of the calculated dew point temperature based on the measured temperature and humidity.

Is the PosiTector DPM suitable for high pressure environments?

Yes. The PosiTector DPMD is specifically designed for use in pressurized environments (max 200 psi / 1.3 MPa) and has ½” NPT threads for secure installation on pipes and tanks.

Will any k-type thermocouple work with the PosiTector DPMS?

The PosiTector DPMS Magnetic Surface Temperature Sensor can be disconnected from the K-Type thermocouple connector and replaced with any K-type thermocouple.

DeFelsko offers the following optional k-type sensors:

  • Hand-held Surface Temperature probe: for spot-checking difficult-to-access areas.
  • Liquid Temperature Probe: general purpose probe with stainless steel shaft.

How long does it take the probe to acclimate, and provide accurate measurements in a new environment?

The PosiTector DPM, like other electronic dew point meters, requires adequate time to acclimate to its operating environment. When moving between similar environments, the instrument will stabilize in a matter of seconds. However, when moving between environmental extremes (like between a dry, air conditioned vehicle and the warm, humid outdoors) it can take up to 30 minutes for readings to stabilize.

If left in a dry environment for an extended period of time, this stabilization process may take longer. To restore the original response time, wrap the sensor in a damp cloth overnight.

Is the PosiTector DPM accurate in freezing temperatures?

The PosiTector DPM can accurately measure air temperature (Ta) as low as -40° C.

Is the PosiTector DPM suitable for logging temperatures inside an oven?

We do not recommend our PosiTector DPM for operation in an oven. Delicate internal components and assembly materials are prone to premature damage when subjected to prolonged use in a closed environment with temperatures greater than approximately 50° C.

How often should the PosiTector probe be recalibrated?

PosiTector probes include a Certificate of Calibration with no expiry or end date. They have no shelf life, therefore the length of time in the field is not a good indicator for recalibration intervals. Many organizations with quality programs and recertification programs require annual recalibrations, and this is a good starting point for most users. DeFelsko recommends that customers establish calibration intervals based upon their own experience and work environment. Based on our product knowledge, data and customer feedback, a one year calibration interval from the date the instrument was placed in service is a good starting point.


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