Description
The United Instruments LPC-10 is a bench and portable low pressure calibrator that both measures and controls pressure in the inches of water range. A servo-actuated differential piston array synthesizes the set pressure in a closed loop, while a piezoresistive sensor provides the measurement. This makes it suitable for calibrating low range gauges, magnehelic-style indicators, draft gauges and differential transmitters used in HVAC and cleanroom systems. It runs from AC power or an internal NiCad battery and offers RS-232 for remote operation.
Key features
- Measure and control functions in one instrument
- Measurement range of -1.5 to 11.5 inH2O
- ±0.035% of full scale accuracy at 25 °C
- Closed-loop pressure generation by servo-actuated piston array
- Microprocessor-controlled auto zero
- Selectable engineering units and RS-232 interface
Typical applications
- Calibration of low range differential pressure gauges
- HVAC and building automation transmitter checks
- Cleanroom pressure monitor verification
- Draft and air velocity instrument calibration
Specifications
| Brand | United Instruments |
|---|---|
| Model | LPC-10 |
| Product type | Low pressure calibrator (measure and control) |
| Measurement range | -1.5 to 11.5 inH2O (-3.75 to 27.5 mbar) |
| Control range | -10 to 10 inH2O standard |
| Accuracy | ±0.035% of FS at 25 °C; ±0.05% of FS from 10 to 30 °C |
| Stability | ±0.05% of FS per year |
| Maximum overpressure | 5 psi (347 mbar) |
| Sensor | Solid-state piezoresistive |
| Display | 2 x 20 alphanumeric fluorescent |
| Interface | RS-232, 4800 baud |
| Power | 105 to 135 / 210 to 270 VAC, 50/60 Hz; NiCad battery approx. 2 h |
| Operating temperature | 0 to 50 °C |
What’s included
- LPC-10 calibrator
- Manual
- Line cord
- RS-232 cable
- Manufacturer’s NIST traceable certificate
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