The Maxi S constant-volume humidity generator is an automated, positive-pressure humidity control device designed for museum displays. It features a unique scalable output, allowing a single unit, placed remotely, to reliably maintain stable humidity levels in multiple small showcases or one or more large showcases up to 60 meters away. The Maxi S can deliver up to 400 cubic meters of clean, pollution-free, humidity-controlled air per day.

Operating principles

One or more air pumps supply filtered air at the required pressure and flow for the application. In the Maxi S, air is passed through a cooled water bath to regulate humidity levels before being distributed to enclosures via flexible tubing.

The Maxi S uses small-diameter hoses to deliver conditioned air to showcases up to 60 meters away, providing flexibility for new architectural designs and seamless retrofitting during renovations. The system operates on a positive-pressure feed only, with no return flow. Displaced air naturally exits through case leakage, preventing the ingress of dust and pollutants.

 

Various hose diameters can be used depending on the application and hose run requirements. Optional rotameters allow precise control of each air output.

The system consists of two three modules: the main unit, a water container, and one or more air pumps. When connected to a domestic water source, it operates fully automatically with minimal maintenance.

The Maxi S is available in two versions—horizontal and vertical—allowing it to fit into different spaces as needed. In addition to the main unit, an air pump is required for operation. If a domestic water source is not available, an additional water container must be used.

Installation

Remote Monitoring

Existing museum Wi-Fi networks may be used to connect the units to the internet, and rhmonitoring. com is accessible through any web connectable device. Monitoring can be done from any location.

rhmonitoring.com can be used to report on current relative humidity and temperature conditions and historical data, as well as changing some operating parameters. Sensor history graphs may be generated, and notifications and alarms can be automatically sent by email as required.

Technical specification

 

  • UNIT SIZE:−             Main Unit: 955 mm x 530 mm x 350 mm(H)

    −             Air pump: 280 mm x 220 mm x 220 mm (H)

    • WEIGHT:

    −             Main unit: 75 kg

    −             Water reservoir: Made to size (if used)

    −             Air Pump (single): 9 kg

    • POWER SUPPLY: 110-230 VAC. Typical 15A fused receptacle.
    • WATER SUPPLY: optional, ¼” hose connection for domestic line.
    • DRAINAGE: Floor drain or containment tray.
    • OUTPUT: Multiple outputs with total air output 7/13 m3 / hour
    • SENSOR: digital RH and T sensor +- 1.5%
    • OPTIONAL ACCESSORIES:

    −             Air distribution attachment with multiple outputs

    −             Air distribution attachment with multiple outputs and rotameter for each output.

    −             Reverse osmosis system (if connected to the water source)

    −             Air filters