Moisture measurement technology: DAkkS calibration laboratory, series instruments and systems for process moisture, trace moisture and laboratory gases
dr. wernecke Feuchtemesstechnik GmbH
Potsdam (Gerlachstr. 35) · DAkkS-accredited calibration laboratoryNew on Amplifa
About dr. wernecke Feuchtemesstechnik
dr. wernecke Feuchtemesstechnik GmbH in Potsdam specializes in moisture measurement technology: the company manufactures series instruments such as trace moisture analyzers, aw-value thermostats, and laboratory and mixed gas generators, and adapts moisture measurement technology to specific customer applications. On request, the company also develops new sensor technology, sets up complete measurement laboratories, and operates a DAkkS (DKD) accredited calibration laboratory for the measurands humidity, temperature and water activity. Calibrations are carried out with DAkkS or ISO certificates in the laboratory or as on-site calibration at the customer's premises. Applications range from determining material and process moisture in pharmaceuticals, food, plastics, paper and bulk goods to automotive and laboratory tasks, up to the installation of an atmosphere simulation system at the University of Natural Resources and Life Sciences, Vienna. The site is located at Gerlachstraße 35, 14480 Potsdam.
- Site
- Potsdam
- Processes
- Calibration of humidity and temperature measuring instruments (DAkkS/DKD accredited), DAkkS calibration air humidity (10...95) %RH, DAkkS calibration temperature (-30...155) °C, DAkkS calibration water activity (0.1...0.95) aw, ISO calibration humidity (5...95)%RH, ISO calibration temperature (-40...250)°C, ISO calibration flow (0...20) m/s, ISO calibration trace moisture (0.02...2000) ppm
- Materials
- Plastics (as measurement object for water content), Water activity / aw value, Trace moisture, Air humidity / relative humidity, Dry gas < -50 °C dew point, Material moisture / equilibrium moisture
- Certificates
- DAkkS accreditation calibration laboratory (humidity, temperature, water
- Industries
- Pharmaceuticals (tablet manufacturing), Food, Plastics, Paper | cardboard, Bulk goods, Automotive
- 01
Sensor and instrument development
- 02
Manufacture of series instruments (trace moisture analyzers, aw-value
- 03
Adaptation of moisture measurement technology to customer applications
- 04
Set-up of complete measurement laboratories
- 05
Calibration (DAkkS/ISO) and issuance of calibration certificates
- 06
Monitoring, mapping and determination of sorption isotherms
Instruments, systems and processes
Water activity / aw value
aw values of products and foods are determined in a thermostatted measurement station in the range from -35 to 120 °C.
Trace moisture
Stationary, mobile and specialized analyzers determine trace moisture in processes, technical and medical gases (0.02 to 2000 ppm within the ISO calibration scope).
Air humidity / relative humidity
Capacitive humidity sensors are individually adapted to processes; DAkkS calibration range (10...95) %RH.
Dry gas < -50 °C dew point
The mixed gas generator DWF-ENG-25 produces compressed air with an oil-free compressor and permeation dryer to below -50 °C dew point.
Material moisture / equilibrium moisture
Using sorption isotherms as material-specific characteristic curves, product or material moisture is defined from the equilibrium moisture.
Locations
Potsdam
DEHeadquarters with DAkkS-accredited calibration laboratory as well as development and manufacture of the series
- Materials
- Moisture, temperature, trace moisture and flow measurement technology
- aw-value thermostat DWF-AW-35/120 (-35...120 °C)
- Material moisture measuring system DWF-AW-25
- Laboratory gas humidity generator DWF-ENG-20
- Mixed gas generator DWF-ENG-25
- Particle moisture measuring device DWF-MAT-15
- Water content measuring system DWF-MAT-40
- Humidity monitoring system DWF-RF-25
- Trace moisture analyzers DWF-SP-20/-25/-30/-35
Instruments and systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Calibration of humidity and temperature measuring instruments (DAkkS/DKD accredited)Testing | – | – | – | – | – |
| DAkkS calibration air humidity (10...95) %RHTesting | – | – | – | – | – |
| DAkkS calibration temperature (-30...155) °CTesting | – | – | – | – | – |
| DAkkS calibration water activity (0.1...0.95) awTesting | – | – | – | – | – |
| ISO calibration humidity (5...95)%RHTesting | – | – | – | – | – |
| ISO calibration temperature (-40...250)°CTesting | – | – | – | – | – |
| ISO calibration flow (0...20) m/sTesting | – | – | – | – | – |
| ISO calibration trace moisture (0.02...2000) ppmTesting | – | – | – | – | – |
| On-site calibrations at the customer's premisesTesting | – | – | – | – | – |
| Online determination of process moisture / trace moistureTesting | – | – | – | – | – |
| Determination of material moisture on moving webs (DWF-AW-25)Testing | – | – | – | – | – |
| aw-value determination in the temperature range (-35...120)°C (DWF-AW-35/120, thermostattedTesting | – | – | – | – | – |
| Generation of laboratory gases with defined humidity (laboratory gas humidity generator DWF-ENG-20)Engineering | – | – | – | – | – |
| Mixed gas generation (DWF-ENG-25): mixing, pre-tempering and humidifying gases; drying to <Engineering | – | – | – | – | – |
| Atmosphere simulation (DWF-ENG-10): extreme values for temperature, gas composition and pressure inEngineering | – | – | – | – | – |
| Particle moisture measurement in fluidized beds (DWF-MAT-15, high-frequency probe, particleTesting | – | – | – | – | – |
| Determination of water content in plastics (DWF-MAT-40)Testing | – | – | – | – | Plastics |
| Humidity monitoring / mapping (DWF-RF-25)Testing | – | – | – | – | – |
| Stationary trace moisture measurement in aggressive media (DWF-SP-20)Testing | – | – | – | – | – |
| Trace moisture measurement in glove boxes (DWF-SP-25)Testing | – | – | – | – | – |
| Mobile trace moisture measurement (DWF-SP-30)Testing | – | – | – | – | – |
| Trace moisture/residual moisture measurement on pipe inner walls (DWF-SP-35)Testing | – | – | – | – | – |
| Development of customer-specific sensor technology and set-up of complete laboratories; adaptationEngineering | – | – | – | – | – |
| Manufacture of series instruments for moisture measurement technologyAssembly | – | – | – | – | – |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| aw-value thermostat / thermostatted aw measurement station | dr. wernecke Feuchtemesstechnik GmbH DWF-AW-35/120 | – | Temperature range (-35...120)°C | – | Potsdam |
| Material moisture measuring system for moving webs | dr. wernecke Feuchtemesstechnik GmbH DWF-AW-25 | – | – | – | Potsdam |
| Atmosphere simulation system | dr. wernecke Feuchtemesstechnik GmbH DWF-ENG-10 | – | – | – | University of Natural Resources and Life Sciences, Vienna (BOKU) |
| Laboratory gas humidity generator | dr. wernecke Feuchtemesstechnik GmbH DWF-ENG-20 | – | – | – | Potsdam |
| Mixed gas generator | dr. wernecke Feuchtemesstechnik GmbH DWF-ENG-25 | – | Dry gas < -50 °C dew point | – | Potsdam |
| Particle moisture measuring device for fluidized beds (high-frequency probe, particle collector) | dr. wernecke Feuchtemesstechnik GmbH DWF-MAT-15 | – | – | – | Potsdam |
| Water content measuring system for plastics | dr. wernecke Feuchtemesstechnik GmbH DWF-MAT-40 | – | – | – | Potsdam |
| Humidity monitoring system | dr. wernecke Feuchtemesstechnik GmbH DWF-RF-25 | – | – | – | Potsdam |
| Stationary trace moisture analyzer (for aggressive media) | dr. wernecke Feuchtemesstechnik GmbH DWF-SP-20 | – | – | – | Potsdam |
| Trace moisture analyzer for glove boxes | dr. wernecke Feuchtemesstechnik GmbH DWF-SP-25 | – | – | – | Potsdam |
| Mobile trace moisture analyzer | dr. wernecke Feuchtemesstechnik GmbH DWF-SP-30 | – | – | – | Potsdam |
| Trace moisture/residual moisture measuring system for pipe inner walls | dr. wernecke Feuchtemesstechnik GmbH DWF-SP-35 | – | – | – | Potsdam |
| Oil-free compressor with permeation dryer (component of the mixed gas generator) | – | – | – | – | Potsdam |
| Ozone generator (component of the mixed gas generator) | – | – | – | – | Potsdam |
Additional services
Reference customers
Quality and accreditation
The calibration laboratory is DAkkS (DKD) accredited for the measurands humidity (10...95 %RH), temperature (-30...155 °C) and water activity (0.1...0.95 aw). In addition, ISO certificates are issued for humidity, temperature, flow (0...20 m/s) and trace moisture (0.02...2000 ppm).
| Evidence | Potsdam |
|---|---|
| DAkkS accreditation calibration laboratory (humidity, temperature, water |