Accuracy

±1.5% of full scale under calibration conditions including linearity over 60° to 80°F (15° to 26°C) and 5 to 60 psia (0.3 to 4 bara) If the instrument is mounted with a vertical (up or down) flow path the following accuracy de-rating applies:

Repeatability

±0.25% of full scale

Temperature Coefficient

0.08% of full scale per °F (0.15% of full scale per °C), or better

Response Time

800 ms time constant; six seconds (typical) to within

Gases

Most gases (e.g., air, nitrogen, carbon dioxide, argon, methane,
hydrogen, helium); check compatibility with wetted materials; specify when ordering. ±2% of final value over 25 to 100% of full scale

Pressure Coefficient

0.01% of full scale per psi (0.15% of full scale per bar), or better

Mass Flow Rates

0 to 10 sccm to 0 to 50 slpm; flow ranges specified are for an equivalent flow of nitrogen at 760 mm Hg and 21°C (70°F); other ranges in other units are available (e.g., scfh or nm³/h)

Gas Pressure

150 psig (10 barg) maximum
20 psig (1.4 barg) optimum

Display

Linear 0 to 5 VDC, 2000 ohms minimum load resistance
Linear 4 to 20 mA, 1000 ohms maximum loop resistance for 24 VDC supply