Ashcroft 4480S Pneumatic Transmitter

Ashcroft 4480S Non-Indicating Pneumatic Transmitter is a rugged Ashcroft unit that converts a process pressure into a proportional low‑pressure pneumatic signal for remote indicators or controllers. It uses a stainless steel Bourdon-tube sensing element and is designed for broad process pressures, with range capability up to 20,000 psi from vacuum to full‑scale pressure. As a non‑indicating transmitter, it provides no local display and relies on external indicators or controllers to monitor pressure. The 4480S is calibrated with two adjustments and offers an accuracy of 0.5% of span, with a sensitivity of 0.001% of span and a compact enclosure around a 316 stainless steel wetted path; typical dimensions run about 7.0 inches high, 6.875 inches wide, and 5.0 inches deep. This model is part of Ashcroft's 4000‑series transmitters, intended for panel or field mounting in demanding industrial environments and compatible with Ashcroft's line of remote indicators and controllers. Ordering examples such as 4480S-04L illustrate the suffix convention used to designate non‑indicating configurations, while the standard family supports a wide range of standard process inputs and ranges, including vacuum and high‑pressure options up to 20,000 psi, enabling robust remote process monitoring in sectors like oil and gas, chemical processing, and power generation.