Instrument versions Instrument versions

Temperature transmitter testo 6920

Technical data

 

Properties

  • easy operation via P2A software and fast on-site adjustment

 

Measurement sensor

  • wide selection of temperature sensors (Pt100/1000, NTC, NI1000)

 

Measuring range

  • 0 to+70 °C (active without display)
  • 0 to +50 °C (active with display)
  • -20 to +70 °C (passive sensors)

 

Accuracy

  • ±0,5 °C

 

Outputs

  • 4 to 20 mA (±0.05 mA)
  • 0 to 1 VDC (±2.5 mV)
  • 0 to 5 VDC (±12.5 mV)
  • 0 to 10 VDC (±25 mV)
  • passive output optional

 

 

Tender specifications

Product brochure
Technical data
Ordering overview
Expert opinion
Contact
Testo AG
Testo-Strasse 1
79853 Lenzkirch
Germany

Telephone: +49 7653 681-700
Fax: +49 7653 681-701

E-Mail: info@testo.de
www.testo.com
Instrument versions Instrument versions

Humidity and temperature transmitter testo 6621

Technical data

 

Properties

  • easy operation via P2A software and fast on-site adjustment
  • patented robust humidity sensor
  • large selection of protective filters

 

Measurement sensor

  • Testo humidity sensor, NTC (active temperaturesensor), NI1000 (passive temperature sensor)

 

Measuring range

  • Humidity: 0 to 100%RH (> 90%RH short-term)
  • Temperature: 0 to 60 °C (wall version) -20 to 70 °C (duct version)

 

Genauigkeit

  • Feuchte: ±2,5 %rF (0...90 %rF), ±4,0 %rF (>90...100 %rF)
  • Temperatur aktiv: ±0,5 °C
  • Temperatur passiv, Toleranz Ni1000 <0 °C: 0,4 °C + (0,028 x ltl)
  • Temperatur passiv, Toleranz Ni1000 >0 °C: 0,4 °C + (0,007 x ltl)

 

Accuracy

  • Humidity: ±2.5%RH (0 to 90%RH), ±4.0%RH (> 90 to 100%RH)
  • Temperature activ:e ±0.5 °C
  • Temperature passive, tolerance Ni1000
  • < 0 °C: 0.4 °C + (0.028 x ltl)
  • > 0 °C: 0.4 °C + (0.007 x ltl)

 

Tender specifications

Product brochure
Technical data
Ordering overview
Expert opinion
Contact
Testo AG
Testo-Strasse 1
79853 Lenzkirch
Germany

Telephone: +49 7653 681-700
Fax: +49 7653 681-701

E-Mail: info@testo.de
www.testo.com
Instrument versions Instrument versions

Differential pressure transmitter testo 6321

Technical data

 

Properties

  • easy operation via P2A software and fast on-site adjustment
  • extermely long-term stable sensor

 

Measurement sensor

  • Piezoresistive sensor

 

Measuring range

  • 2 to +2 bar selectable in the ranges
  • 100 to +100 Pa

 

Accuracy

  • 1.2 % of measuring range (+ 0.3 Pa basic error)

 

Outputs

  • 4 to 20 mA (±0.05mA); 4-wire
  • 0 to 1 VDC (±2.5mV); 4-wire
  • 0 to 5 VDC (±12.5 mV); 4-wire
  • 0 to 10 VDC (±25 mV); 4-wire

 

Tender specifications

Product brochure
Technical data
Ordering overview
Expert opinion
Contact
Testo AG
Testo-Strasse 1
79853 Lenzkirch
Germany

Telephone: +49 7653 681-700
Fax: +49 7653 681-701

E-Mail: info@testo.de
www.testo.com

Save operating costs thanks to precise measurement of indoor climate.

„For my customers in industry, optimum indoor conditions are indispensible for the achievement of the required product quality. In times of rising energy costs and diminished resources, the focus is of course increasingly on running operational costs. For this reason, my customers are placing more and more emphasis on the accuracy of the measurements and low maintenance costs.“
 
Frank Höpcke (Haus & Technik GmbH) plans, installs and maintains measurement and control systems in industrial companies.

In focus: optimum product quality and operational cost-efficiency

 

The correct air conditioning of a room is crucial not only to the subjective well-being and performance of humans. It is also very important for optimum development, production and storage in industry – i. e. for the quality of the products.


In times of rising energy costs and diminished resources, operational cost-consciousness is also growing. Whereas in the past, the cost of investment in an air conditioning and ventilation system was at the forefront of cost consideration, today the total costs incurred by years of operation of the systems are attracting increased attention. The operator of a building, for example, today also has economic interests in the energy used for the air conditioning of a building.Enormous potential for savings are created by efficient energy use.


In addition to the recording of humidity and temperature, the measurement of differential pressure plays an important part in the correct air conditioning of buildings. In order to supply rooms with the optimum quantity of fresh air, the air input supply must be regulated reliably.

Product brochure
Contact
Testo AG
Testo-Strasse 1
79853 Lenzkirch
Germany

Telephone: +49 7653 681-700
Fax: +49 7653 681-701

E-Mail: info@testo.de
www.testo.com

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    Contact
    Testo AG
    Testo-Strasse 1
    79853 Lenzkirch
    Germany

    Telephone: +49 7653 681-700
    Fax: +49 7653 681-701

    E-Mail: info@testo.de
    www.testo.com
    Product brochure
    Expert opinion