Sauermann’s multifunction transmitters are the most advanced instruments of their kind in our range – and the go-to choice for round-the-clock monitoring of clean room environments.

These instruments are designed with flawless, permanent operation in mind, leaving the rest of the market trailing when it comes to accurate, reliable measurement of a wide range of air parameters – including one of the most important parameters for professionals in regulated environments: differential pressure.

These transmitters can also accommodate additional probes for measuring and displaying up to four parameters simultaneously (pressure, temperature/humidity, air velocity, air flow, and CO/CO2/VOC concentration).

Measuring pressure is especially important in regulating the incoming air dynamic pressure and monitoring air filters, which clog foul at different rates depending on their filtration efficiency.

Differential pressure manometers also monitor high-side and low-side pressure in production rooms. Differential pressure measurements in critical rooms are crucial to maintain the extremely low concentration of airborne particles. These measurements are used by the regulation systems to manage efficiently the ventilation in each area. Our differential pressure transmitters are renowned for their outstanding performance.

Flushmount transmitters also monitor zone-specific confinement in order to avoid atmospheric contamination in pharmaceutical production and hospital settings.

Building on its long-standing expertise in pressure measurement instruments, Sauermann’s solutions – connected transmitters and liquid column manometers – cover every application. Our transmitters are ideal for recording values remotely and over time. Our liquid column manometers are unmatched when it comes to durability and function without a power supply, which makes them exceptionally resilient.

According to ISO 14644-3, the ventilation system in a clean room must be capable of maintaining temperature and humidity values within operation-specific limits. These rules are designed to prevent common problems such as the expansion or contraction of materials, the spread of pathogens, and corrosion.

All Sauermann temperature transmitters measure relative humidity. They are used in all applications, and are especially popular in the pharmaceutical industry, where production zones often have to adhere to strict environmental standards for product preservation reasons.

These transmitters can also be found in storage and packing areas in health care, high tech and other critical manufacturing sectors.

The air flow through inlets and outlets needs to be precisely controlled in order to maintain a sufficient air change rate within different zones of a clean room complex. Meeting this stringent requirement becomes even more challenging when indoor air is purified by filters that capture bacteria, viruses and other airborne particles. These filters disrupt the air flow, potentially creating turbulence or reducing flow rates.

Clean rooms in the most stringent ISO classes (1-5) must have a turbulencefree laminar air flow that optimises air circulation and air change, while maintaining pressure at a sufficiently stable level to keep it above or below atmospheric pressure. Keeping check on the ventilation system to make sure it is perfectly balanced means measuring air flows around the clock.