620S - 2 Pages

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620S

Catalog excerpts

www.nokeval.com sales@nokeval.com 2-wire temperature transmitter 620S for Pt100 sensors • Input range -200...+700°C • High accuracy ±0.05 % of span • Leadwire compensation up to 100 ohms • Linearization • Small case 22.5 mm • Mounting on DIN-rail Our model 620S temperature transmitter is designed to meet the most exacting temperature measuring requirements. Extreme accuracy is obtained by linearizing the measurement signal with an accuracy of 0.05 % to the temperature. Thus one transmitter can now replace several of narrower range without reducing accuracy. Leadwire resistance automatic compensation up to 50 ohms makes possible long transfer distances with small-crossarea signel cables. Range can easily be varied by changing the range resistors located under the front plate. Normally transmitters are delivered calibrated according to customer range requirements. Input Accuracy Linearizing accuracy Ambient temperature effect - Span <100°C - Span >100°C Supply voltage effect Repeatability Response time External leadwire resistance effect Supply voltage range Output Min. output Current limitation Sensor current Operating temperature Storage temperature Module width 22.5 mm Housing polycarbonate, IP10 Weight 200 g Temperature range -200..+800°C Min. span 50°C Max. span 800°C Sensor Output 4 mA (°C) Output 20 mA (°C) For example, range 0-100°C, type 620S-Pt100-0/100 Wall and DIN 46277 rail mountings Terminal board for 2 x 1.5 mm2

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Connection diagram Difference measurement (special order) 3 Potentiometer (special order) 3

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