www.nokeval.com [email protected] Very slim, 9.5 mm only 2-wire output 4..20 mA Inputs 0..20 mA, 4..20 mA or 0..10 V Galvanic isolation 1000 V Power supply 10..34 VDC Voltage drop in input loop 1V Output load 700 ohm (with 24 V) Accuracy 0.05% of span Specially suited for programmable logics Nokeval has designed a very slim, 9 mm only, 2-wire converter with calvanic isolation. Converter is powered by output 2-wire loop. It is specially suited to isolate analog inputs of programmable logics because those supply the power and wiring is simple. The idea of connecting power supply to output side eliminates typical problems of conventional isolators like small output load and high input side voltage drop. Three input types are available: 0..20 and 4..20 mA or 0..10V, output is always 4..20 mA. Output load is 700 ohm by 24 VDC power supply. You can increase output load by rising output loop voltage (see picture 3). Input voltage drop, 1 V only, enables connection of several devices to same input loop. Converter is delivered calibrated to 0.05 % accuracy of full scale. Front cover has zero and span potentiometers for eventually recalibration. The damping of standard 6580 is 10 ms. Power supply 24 VDC, isolated from input Output load can be increased by rising output loop voltage.

Technical specification: Input Output Accuracy Repeatability Temperature drift Input load Power supply Output load Isolation voltage Damping: Frequency range Ambient temperature Case dimensions Installation Terminal blocks Order code: 0..20, 4..20 mA, 0..10V 2-wire 4..20 mA < 0.05% FS < 0.03 % FS 0.006% /°C 50 Ω current input > 1 MΩ voltage input 10..36 VDC 700 Ω (24V) picture 3. >1000 V / 1 min 10 ms 0..100 Hz -20..60°C 9 x 88 x 58 mm DIN-rail, 35 mm 2 x 2.5 mm² Input: 0...20 mA 4..20 mA 0..10V Output always 4..20 mA For other input and output signal combinations we offer model 641 with 24 VDC...