Basic Mechanism

The units use a piston to control a high gain pneumatic two-stage servo system. When increasing the regulated pressure the handwheel is turned clockwise, forcing the measuring capsule/piston assembly downward. This pushes the pilot diaphragm and control diaphragm downward. As a result, the main valve opens and the supply pressure enters the regulator. The resulting pressure change causes the measuring capsule to compress. This compression causes the pilot diaphragm and the control diaphragm to move upward, which then shuts the main valve.

When decreasing the regulated pressure, the handwheel is turned counterclockwise, forcing the measuring capsule/piston assembly upward. This allows the pilot diaphragm and control diaphragm to move upward. As a result, the relief valve opens and air is exhausted through the vent. The resulting pressure drops causes the measuring capsule to expand. This expansion causes the pilot diaphragm and control diaphragm to move down, which then shuts the relief valve.

To maintain a state of equilibrium, the action of the measuring capsule as described above ensures a precise constant pressure regulation. Air is bled at a constant rate through the bleed orifice so that a very small movement of the pilot valve induces a substantial pilot pressure change, which creates a high servo amplification.

PRG101 specifications

The Omega PRG101 is a sophisticated timepiece that beautifully combines style and functionality. Designed for outdoor enthusiasts and adventurers, this watch is part of Omega's renowned Seiko collection, and it embodies cutting-edge technology with robust design characteristics.

One of the main features of the PRG101 is its highly accurate quartz movement, which promises reliability in a variety of environmental conditions. The watch is equipped with a solar charging system, allowing it to harness sunlight and other light sources to power its functions. This eliminates the need for battery replacements, making it an eco-friendly choice for watch lovers.

The PRG101 showcases a durable construction, featuring a stainless steel case that withstands the rigors of outdoor activities. The watch is designed to be water-resistant up to 100 meters, making it suitable for swimming, snorkeling, and other water-related activities. The hardened mineral crystal protects the dial from scratches and impacts, ensuring longevity.

A standout feature of the PRG101 is its multi-function capability. It includes an altimeter, barometer, and compass, essential tools for adventurers and hikers. The altimeter allows users to track elevation changes, while the barometer delivers real-time atmospheric pressure readings, helping to predict weather changes. The integrated digital compass aids navigation, providing direction accurately.

The PRG101's display is a perfect blend of analog and digital readings, featuring easy-to-read hour and minute hands alongside a digital window for showcasing the various outdoor metrics. Additionally, the watch includes a backlight function for visibility in low-light conditions, ensuring that users can access critical readings at any time.

Comfort is also a priority for the PRG101, with a soft polyurethane strap that fits snugly on the wrist while providing ventilation during extreme activities. The watch's lightweight design makes it comfortable for extended wear, whether you're trekking through the mountains or engaging in daily outdoor excursions.

In conclusion, the Omega PRG101 is an ideal companion for those who value functionality, durability, and style in a watch. With its advanced technologies and features such as a solar-charging system, multi-functionality, and rugged construction, the PRG101 is a must-have for adventurers and outdoor enthusiasts alike. This timepiece stands as a testament to Omega's commitment to precision and innovation in horology, making every outdoor experience a memorable one.