NG # 02642-HW-KELLER-018
The Keller LEO3 is a smart digital pressure gauge and transmitter that combines local display capabilities with an analog output and RS-485 bus communication. Unlike purely battery-operated standalone gauges (such as the LEO2), the LEO3 is powered externally via a 2-wire or 3-wire loop connection, allowing it to function continuously as an active transmitter in automated control loops and process monitoring systems.
Stock
Custom Pricing
Get A Quote
Stock
Custom Pricing
Get A Quote| Parameter | Standard Value / Range |
| Pressure Ranges | $-1\text{--}3\text{ bar}$, $-1\text{--}30\text{ bar}$, $0\text{--}300\text{ bar}$, $0\text{--}700\text{ bar}$, $0\text{--}1000\text{ bar}$ |
| Pressure Types | Vented Gauge (Relative), Sealed Gauge, Absolute |
| Total Error Band (TEB) | $\pm 0.1\%\text{ FS}$ (Includes non-linearity, hysteresis, repeatability, and temp error $0\text{--}50^\circ\text{C}$) |
| Static Accuracy (25°C) | $\pm 0.05\%\text{ FS}$ |
| Overpressure Safety | $2\times\text{ Full Scale}$ |
| Analog Output Signals | $4\text{--}20\text{ mA}$ (2-wire), $0\text{--}10\text{ VDC}$ (3-wire) |
| Digital Output | RS-485 (MODBUS RTU / Keller-bus) |
| Supply Voltage | $8\text{--}28\text{ VDC}$ (Standard) / $8\text{--}28\text{ VDC}$ (Ex models via intrinsic safety barrier) |
| Display | Dual-line 5-digit LCD with status icons and unit indication |
| Sampling Rate | 2 readings per second ($2\text{ Hz}$) |
| Operating Temperature | $0^\circ\text{C to } +50^\circ\text{C}$ ($32^\circ\text{F to } +122^\circ\text{F}$) |
| Storage Temperature | $-20^\circ\text{C to } +70^\circ\text{C}$ ($-4^\circ\text{F to } +158^\circ\text{F}$) |
| Pressure Connection | $7/16\text{''}-20\text{ UNF}$ male with $1/4\text{'' NPT}$ or $G 1/4\text{''}$ adapters |
| Wetted Materials | 316L Stainless Steel, Viton O-rings |
| Housing Material | Polyamide / ABS plastic faceplate; Stainless Steel base connection |
| Enclosure Protection | IP65 |
Keller Econoline General Purpose Pressure Transmitter
Keller LevelRat Submersible Level Transmitter
Keller LEO5 Digital Pressure Transmitter
Keller Acculevel Submersible Level Transmitter
Keller 33 X Ed / 35 X Ed Pressure Transmitter
Keller 35X HT / 35X HTT Pressure Transmitters
Keller Valueline High Accuracy Pressure Transmitter
Keller Series M5 Pressure Transducer
KUKA Articulated robot KR IONTEC
Keystone Pipe Handling Tools Beckets & Bails
Type CD Drill Pipe Elevators API Spec 8A/8C For Drill Collar/Casing/Tubing
Coriolis flow transmitter CFT34A
Blancett 900 Series Positive Displacement Flow Meter
GF Signet 515 Rotor-X Paddle Wheel Flow Sensor
GF Signet 2536 Rotor-X Paddle Wheel Flow Sensor
