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Keller Digital Manometer Leo-3 - India
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Intelligent Transmitters with Digital Indication RS485 Bus Interface / Scalable 4 ~ 20 mA Output.

Keller 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.

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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.
Factory zero setting will be restored.
The pressure values can be displayed in the following units: bar, mbar/hPa, kPa, MPa, PSI, kp/cm2.

Programming the analogue output via the front keys

In this sub-menu the analogue output can be configured within the pressure range.
Executing ZERO when pressure is applied sets the analogue output to 4 mA.
Executing FS when pressure is applied sets the analogue output to 20 mA.
The analogue output signal is set back to factory settings.

[/vc_column_text][/vc_tta_section][vc_tta_section i_icon_fontawesome=”fa fa-cogs” title=”Specifications of Keller Digital Manometer Leo 3″ tab_id=”1470808483778-febab161-3d7ccb93-991a” add_icon=”true”][vc_column_text][wc_fa icon=”gear” margin_left=”” margin_right=””][/wc_fa]  General Specifications of  Keller Digital Manometer Leo 3

Pressure Ranges rel.
PR -1…3 -1…10 -1…30 bar
Pressure Ranges abs.
PA 0…30 0…100 0…300 0…700 0…1000 bar
PAA 0…4 0…10 0…30 bar
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 6 x 125 x 50 mm / ≈ 210 g

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Included Accessories
  • Cable plug for Binder 723
Optional accessories
  • Protective rubber covering
  • K114-B interface converter
Pressure and temperature readings can be displayed and recorded on PC or Laptop with help of the software ControlCenterSeries30 (CCS30) and a serial interface cable. The software also enables configuration of the analogue 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.


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