IntellIgent transmItter wIth DIgItal InDIcatIon

Product catalog summary

Overview: The LEO 3 is a microprocessor-based transmitter featuring a digital double-display for pressure and analog output signal. It operates on a 4…20 mA current loop and includes an RS485-bus interface.

Key Functions:

MAX/MIN: Displays maximum and minimum values on the lower display.
RESET: Resets the Max.- and Min.-values to current readings.
ZERO SET: Sets zero to the applied pressure.
ZERO RES: Restores factory zero settings.
UNITS: Pressure can be displayed in various units such as bar, PSI, and kPa.

Analog Output Programming:

OUTP SETT: Configures the analog output within the pressure range.
ZERO: Sets the analog output to 4 mA when pressure is applied.
FS: Sets the analog output to 20 mA when pressure is applied.
FACT SETT: Resets the analog output to factory settings.

Scope of Delivery: Includes a cable plug for Binder 723. Optional accessories include protective rubber covering and K114-B interface converter.

PC Software: The ControlCenterSeries30 (CCS30) software allows for pressure and temperature readings to be displayed and recorded on a PC. It supports configuration of analog output scaling and zero point settings, and can connect up to 128 devices in a KELLER Bus-system.

Specifications:

Pressure Ranges: Relative (-1…3 to -1…30 bar) and Absolute (0…30 to 0…1000 bar).
Overpressure: Ranges from 8 to 1100 bar.
Resolution: Pressure display resolution varies from 1 to 200 mbar, with interface resolution at 0.0125% FS.
Accuracy: ≤ 0.1% FS at room temperature.
Total Error Band: ≤ 0.2% FS from 0 to 50 °C.
Temperature Range: Storage (-10 to 60 °C) and Operating (0 to 50 °C).
Supply Voltage: 8…28 VDC.
Output: 4…20 mA (2 wire) / RS 485.
Measuring Rate: Up to 90 times/sec.
Display Rate: 2 times/sec.
Protection: IP65.
Dimensions: 76 x 125 x 50 mm, Weight: ≈ 210 g.

Pin Assignment: Details the pin configuration for Binder 723, including connections for 4…20 mA output, RS485 interface, and shielding.

Catalog excerpts

IntellIgent transmItter wIth DIgItal InDIcatIon-1

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. 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 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 Resolution Pressure Display (LCD) 1 2 Resolution Pressure via Interface 0,0125 %FS Accuracy RT (room temperature) ** Total Error Band (0…50 °C) Storage Temperature / Operating temperature Compensated Temperature Range * Supply Output Interface Measuring Rate Display Rate Pressure Connection * Electrical Connection * Protection Diameter x Height x Depth / Weight ≤ 0,1 %FS ≤ 0,2 %FS -10…60 °C / 0…50 °C 0…50 °C 8…28 VDC 4…20 mA (2 wire) / RS 485 RS 485 (KELLER-Bus) up to 90 times/sec. 2 times/sec. G1/4” Binder 723 (back entry) IP65 76 x 125 x 50 mm / ≈ 210 g *Options: others Pressure Ranges, Temperature Ranges, Pressure Connections, Electrical Connections **Includes Linearity + Repeatability + Hyst

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