Intelligent Transmitter with Digital Indication LEO 3 - 1 Pages

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Intelligent Transmitter  with Digital Indication LEO 3

Catalog excerpts

Intelligent Transmitter with Digital Indication rs485-bus-interface LEO 3 is a micro-processor based transmitter with digital double-display for pressure (top of display) and for the analog output signal (bottom display). The display is powered from the 4…20 mA current loop. The following functions can be executed with the front keys: MAX/MIN Activating the right key brings the Max.- and Min.-values to the lower display. With RESET, the Max.- and Min.-values are set to actual. The zero is set to the applied pressure. ZERO RES Factory zero setting will be restored. UNITS The pressure values can be displayed in the following units: bar, mbar/hPa, kPa, MPa, PSI, kp/cm2. Programming the analog output via the front keys OUTP SETT In this sub-menu the analog output can be configured within the pressure range. ZERO Executing ZERO when pressure is applied sets the analog output to 4 mA. Executing FS when pressure is applied sets the analog output to 20 mA. FACT SETT The analog output signal is set back to factory settings. Scope of delivery Cable plug for Binder 723 Optional accessories Protective rubber covering, K114-B interface converter PC-Software Pressure and temperature readings can be displayed and recorded on PC or Laptop with help of the software ControlCenterSeries30 (CCS30) and a seriel interface cable. The software also enables configuration of the analog output scaling and zero point settings. The Keller-Bus protocol and programming examples in various programming languages are available. This allows very quick and easy implementation in customer software applications. Up to 128 devices can be connected together into a KELLER Bus-system. Overpressure 8 20 60 200 600 1100 1100 bar Resolution Pressure Display (LCD) 1 2 10 20 100 200 200 mbar Resolution Pressure via Interface 0,0125 %FS Accuracy RT (room temperature) ** ≤ 0,1 %FS Total Error Band (0…50 °C) ≤ 0,2 %FS Storage Temperature / Operating temperature -10…60 °C / 0…50 °C Compensated Temperature Range * 0…50 °C Supply 8…28 VDC Output 4…20 mA (2 wire) / RS 485 Interface RS 485 (KELLER-Bus) Measuring Rate up to 90 times/sec. Display Rate 2 times/sec. Pressure Connection * G1/4” Electrical Connection * Binder 723 (back entry) Protection IP65 Diameter x Height x Depth / Weight 76 x 125 x 50 mm / ≈ 210 g Binder Output Function 723 4…20 mA Shielding Housing 3: +Vcc 2: n.c. *Options: others Pressure Ranges, Temperature Ranges, Pressure Connections, Electrical Connections **Includes Linearity + Repeatability + Hysteresis KELLER Ges. für Druckmesstechnik mbH Companies approved to ISO 9001

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