Foxboro 12A Pneumatic Transmitters

Accuracy:-

Includes Linearity, hysteresis, and repeatability ±0.5% of span.

DeadBand:-

0.05% of span

Repeatability:-

0.2% of span.

Supply Pressure Effect :-

The zero shift is less than 0.2% of span for a 5% change in supply pressure.

Ambient Temperature Effect :-

The output error is less than 0.75% of span at midscale for a 28°C (50°F) change between 0 and 55°C (32 and 130°F).

Barometric Pressure Effect :-

The output error is less than 0.25% of span for a change of 7 kPa (2 inHg, 50 mmHg, or 70 mbar) in barometric pressure.

Ambient Temperature Limits :-

–35 and +180°C (–30 and +180°F). The vinyl covered portion of the connecting tubing must be in an area between –55 and +105°C (–65 and +220°F).

Supply Pressure:-

140 kPa, 20 psi, 1.4 bar or kg/cm2, ±10%. The supply air must have a dew point at least 10°C (18°F) below the expected operating ambient temperature.

Air Connections :-

The supply and output connections are tapped for 1/4 NPT.

Output Signal 20 to 100 kPa, 3 to 15 psi, or 0.2 to 1.0 bar or kg/cm2, as specified.

Air Consumption under Normal Operation :-

0.5 m3/h (0.3 cfm) at standard conditions