BUILDING MATERIAL : [FREEZING AND THAWING]Freezing and Thawing Apparatus (A method: freezing and thawing in water)
MIT-691-3-32
[Outline of Product Technology]
A freezing and thawing apparatus for building material.
Our dedicated design has succeeded to reduce costs and energy, by reducing the required amount of anti-freeze solution Nai-brine for the test.
Also its large touch panel enables you to operate and check the test process easily.
A built-in self error detection function will help you to deal with troubles quickly.
Large touch panel that allows easy operation and checking
A large color touch panel (10 in.) provides easy operation and setting.
It also enables efficient management of the test as you can check the test status (time passage,
brine temperature, specimen center temperature, remaining number of cycles, total number of cycles, and test ending time) immediately.
Pressing the "?" button on the bottom left of the screen displays the "Help" screen to guide you how to set specimens and make test settings.
Our dedicated design to save energy, costs, and space
Conventional products have large chambers containing coolers inside, and require large amount of Nai-brine. Therefore,
the coolers and heaters tend to be large.
MARUI has developed an original design that has duplex pipes around the testing chamber.
The coolant gas filled in the outer layer of the duplex pipe cools down the Nai-brine solution that circulates in the inner layer of the duplex pipe.
With this structure, the size of the testing chamber has been minimized, and the necessary Nai-brine solution amount has decreased to 60 to 70 %.
The electricity required to cooling and heating can be significantly reduced.
Even temperature distribution
Since the outlets of the Nai-brine solution that has circulated in the cooler or heater are placed on the whole bottom part of the testing chamber,
the temperature distributes evenly in the chamber.
This reduces uneven test results owing to the position of specimens, and the specimens are not required to be replaced any more.
"Test time reservation function" for efficient testing plan
MARUI's freezing and thawing apparatus (with touch panels) have built-in "reservation function"
to reserve the starting date and time for the test.
This function help you make efficient testing plan such as starting on a holiday.
"Self error detection" to deal with troubles
In case any trouble happens, the touch panel indicates the part in trouble, causes, and solutions, so that you can deal with the troubles quickly.
An electric leak is also checked and detected automatically, and indicated by the specific part.
Features
● Large touch panel that allows easy operation and checking
● "Self error detection" to deal with troubles
● Energy-saving with dedicated heat exchanger to reduce the amount of brine solution
● Even temperature distribution on the surface, preventing uneven test results owing to the position of specimens
Specifications
| Standards | JIS A 1435 |
|---|---|
| Type | A method: freezing and thawing in water |
| Specimen | 100 x 400 x T 6 mm x 104 |
| Operation screen | 10 inch color grapfic touch panel |
| Control program | Freezing and thawing by temperature / freezing and thawing by time / specified pattern program |
| Function / Display | Operating instructions, help / total number of cycles, remaining number of cycles |
| Self error detection | Error part indication / Solution indication / Determination of the point of electricity leaks (electricity leakage check function) |
| Brine temperture | - 25 ℃ 〜 + 20 ℃ ± 1℃ |
| Specimen center temp. | - 18 ℃ 〜 + 5 ℃ ± 2℃ |
| Testing chamber material Interior and exterior | SUS-304, door equipped with dew condensation prevention heater |
| Energy-saving design | Cooler with duplex pipes reducing the amount of the brine solution to 210 L or less |
| External dimensions | W 1905 x D 780 x H 1800 mm |
| Internal dimensions of testing chamber | W 1080 x D 540 x H 500 mm |
| Heater / Freezer | 15 kW / outside installation : 11 kW |
| Power source | Three-phase 200V 75A |