Standard Type Neutralization Promotion Test Device

basic information

【Features】 ● Achieves stable temperature, humidity, and CO2 distribution at any position within the test chamber. ● The door is designed with a double special packing to prevent CO2 leakage and features a safety automatic locking mechanism. ● The interior of the chamber is made entirely of stainless steel, eliminating corrosion issues. 【Specifications】 ■ Compliance Standard: JIS A 1153 ■ Temperature Control Range: +20°C to +60°C ± 1°C ■ Humidity Control Range: 30% to 90% RH ± 5% RH ■ CO2 Concentration: 0% to 20% ■ External Dimensions: W 1450 × D 950 × H 1700 mm ■ Internal Dimensions: W 700 × D 850 × H 1220 mm ■ Material: Stainless steel plate (for both interior and exterior, including the cooler) ■ Shelf Load Capacity/Number of Shelves: 100 kg per shelf × 6 shelves ■ Humidity Sensor: Capacitive electric sensor ■ Safety Devices: Heater / Humidifier / Over-temperature prevention thermostat fan / Overload prevention relay for the refrigeration unit * We can accommodate specifications not listed above. Please feel free to contact us for inquiries or consultations.

Price range

Delivery Time

※It may vary depending on the order status, so please inquire as needed.

Applications/Examples of results

- Neutralization test of concrete specimens - Neutralization test of gypsum boards, cement-based building material boards, and slates

Detailed information

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  The left-right convection structure achieves a stable testing environment. Marui's neutralization testing device circulates air adjusted in the air conditioning chamber in a consistent left-right direction within the testing tank, allowing for stable temperature, humidity, and CO2 concentration at any position inside the tank. Additionally, by placing the humidifier outside the testing tank, there is no unnecessary CO2 intake, resulting in cost savings. Furthermore, the drain water is designed to return to the humidifier, contributing to water conservation.

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  The capacitive humidity sensor provides excellent humidity management accuracy. In neutralization testing machines that manage humidity using wet and dry bulb hygrometers, there is a possibility of errors due to handling of gauze, ventilation conditions, water quality, temperature fluctuations, etc. Achieving consistently accurate measurements requires considerable expertise, and there is also a need for management and replacement to prevent the deterioration of the gauze. Marui's neutralization testing equipment employs a capacitive humidity sensor, eliminating such measurement errors and management hassles, allowing for stable conditions within the test chamber at all times.

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  Measures against CO2 leakage are thorough. Double special gaskets are used in the door section to prevent CO2 from leaking. Additionally, the structure is designed with safety measures in mind, including a "safety automatic locking feature" to prevent accidents from inadvertently opening the device door during testing.