NG # 02641-HW-KELLER-017
The Keller LEO5 is a high-precision, state-of-the-art digital pressure transmitter, gauge, and data logger built into a heavy-duty stainless steel housing with a safety-glass front. Positioned as Keller’s flagship digital gauge, it combines ultra-fast sampling rates (up to 5,000 measurements per second) with an internal memory module, rechargeable battery, USB interface, and versatile analog/digital outputs.
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Custom Pricing
Get A QuoteThe device features a sharp, backlit LCD display capable of showing live pressure, temperature, peak pressure spikes, and logging status simultaneously. Driven by 16-bit internal microprocessor thermal compensation, it provides a total error band (TEB) of $\pm 0.05\%\text{ FS}$ over its compensated temperature range ($0\text{--}50^\circ\text{C}$).
Whether operated as a standalone battery-powered reference test gauge, an active inline transmitter ($4\text{--}20\text{ mA}$ / $0\text{--}10\text{ VDC}$), or a high-speed pressure peak logger, the LEO5 meets the rigorous requirements of laboratory testing, calibration, and heavy industrial automation.
| Parameter | Specification | High-Precision Option |
| Pressure Ranges | $-1\text{--}3\text{ bar}$ up to $0\text{--}1,000\text{ bar}$ ($-14.5\text{--}43.5\text{ PSI}$ to $0\text{--}15,000\text{ PSI}$) | Custom calibrations available |
| Pressure Types | Vented Gauge (Relative), Sealed Gauge, Absolute | — |
| Total Error Band (TEB) | $\pm 0.05\%\text{ FS}$ ($0\text{--}50^\circ\text{C}$) | $\pm 0.01\%\text{ FS}$ (Precision option) |
| Static Accuracy (25°C) | $\pm 0.025\%\text{ FS}$ | $\pm 0.01\%\text{ FS}$ |
| Sampling Rates | Standard mode: 2–10 Hz; Peak mode: up to 5,000 Hz (5 kHz) | — |
| Memory Capacity | $56,000$ measurement sets (Pressure, Temperature, Timestamp) | — |
| Display | High-resolution backlit dual LCD display with dynamic bar graph | — |
| Operating Temperature | $0^\circ\text{C to } +50^\circ\text{C}$ ($32^\circ\text{F to } +122^\circ\text{F}$) | — |
| Storage Temperature | $-10^\circ\text{C to } +60^\circ\text{C}$ ($14^\circ\text{F to } +140^\circ\text{F}$) | — |
| Power Supply | Rechargeable Li-ion battery ($3.7\text{V}$), USB power, or $8\text{--}28\text{ VDC}$ external supply | — |
| Battery Life | Up to $1,000\text{ hours}$ (without backlighting and depending on sampling mode) | — |
| Analog Output Signals | $4\text{--}20\text{ mA}$ (2-wire), $0\text{--}10\text{ VDC}$ (3-wire), or $0\text{--}5\text{ VDC}$ | — |
| Digital Communication | USB (direct connection) / RS-485 (MODBUS RTU / Keller-bus) | — |
| Wetted Materials | 316L Stainless Steel, Viton O-rings | — |
| Enclosure Rating | IP65 (Rugged stainless steel case with toughened glass panel) | — |
| Process Connection | $G 1/4\text{'' Male}$ or $1/4\text{'' NPT Male}$ | — |
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