Differential pressure measurements on cleanroom filters as well as cleanroom positive pressure measurements place high demands on the stability of the measurement, which must also run accurately and quickly. In critical air conditioning applications, it must be ensured that at the same time, the flow velocity and volume flow in the air duct meet requirements. For these measurements, the Pneumator has a “measurement mode”, in which the precise measurement value is displayed directly in the desired pressure, flow velocity or volume flow unit. This is carried out at the highest level of mobility – the high-performance rechargeable battery allows 8 hours of use without mains supply

• Use as calibrator or measuring instrument

• Highest accuracy even in lower Pa range

• Long-term battery operation for mobile applications

• High zero point stability due to automatic adjustment

• Fast provision of differential and relative pressures in calibration mode

• Programmable pressure sequences

• Wide selection of pressure, volume flow, and flow velocity units

Specifications

Measuring range/Pressure range: 4 types (1, 10, 100, 1000 hPa)

Measurement principle: inductive differential pressure measurement

Operating modes: Calibration (manually or with programmed sequences), Measuring (Pressure, velocity, volume flow), Zeroing, Venting, Pressure-Tightness test

Measurement inaccuracy: 0,3% of scale ± 1 Digit (Measurement range 1 hPa) 0,1% of scale ± 1 Digit (Measurement range 10, 100, 1000 hPa)

Linearity: 0,2% of scale ± 1 Digit (Measurement range 1 hPa) 0,1% of scale ± 1 Digit (Measurement range 10, 100, 1000 hPa)

Hysteresis: 0,1% v. E. max.

Temperature drift int. reference sensor: Zero point: 0,03% of scale/K (0% by zero point adjustment) Span: 0,03% of scale/K

Zero point adjustment: automatic (at settable intervals), manual (ZERO button)

Long-term stability: 0,5% of scale per year (max.)

Working temperature range: +10°...+40°C

Storage temperature range: -10°..+70°C

Usable pressure and measurement range: -10...110%

Specified pressure and measurement range: 0...100%

Overpressure protection: When exposed to overpressures higher than 125% of range, the internal reference sensor is separated from pressure and vented

Pressure units: Pa, kPa, hPa, bar, mbar, psi, inH2O, inHg, mmHg, Torr

Velocity/volume: flow units m/s, km/h, fpm, mph, m3/h, l/s, lpm, cfm

Media: Air, non-aggressive, non-corrosive gases

Pressure connection: 6,6x11 mm (hoses D=6 mm)

Supply: 24VDC/1A internal accumulator, charges automatically upon net supply · Type: Lithium-Manganese · minimum use: 8h

Interface: USB

Measures Dimensions without handle: (HxWxD) 102,6 mm x 257 mm x 271 mm

Weight: 4.6 kg