The reason is that the outdoor ambient temperature is greater than 0 °C, and soon after the start-up, the condensation water on the surface of the heat sink on the heat exchanger will condense into a thin frost, and soon the frost will become thicker and thicker. The indoor mechanism has poor thermal effects and presents frequent defrosting. The fault is generally caused by dirty surface of the heat sink on the outdoor heat exchanger, failure of the outdoor fan system, or obstruction of the inlet and outlet of the outdoor heat exchanger.
The second reason is that the outdoor ambient temperature is greater than 0 °C. Shortly after the start-up, the bottom of the outdoor heat exchanger (starting at the inlet of the heat exchanger at the capillary exit) is very thick, and most of the heat exchanger has no condensation water, and the knot is delayed over time. Frost, extending from bottom to top; the indoor fan is always running at low speed with anti-cold wind; the system is frequently defrosted.
The third reason is that the outdoor ambient temperature is greater than 0 °C. Shortly after the start-up, the upper half of the outdoor heat exchanger (the heat exchanger outlet and the return air pipe) is thickly frosted and is delayed from top to bottom over time on the heat exchanger ( There is a heat exchanger outlet to the heat exchanger inlet direction) frosting is extended; and the heating effect is poor; the air conditioner is frequently defrosted. This fault is generally caused by too much refrigerant in the system, which often occurs after maintenance and addition of refrigerant. "
The second reason is that the outdoor ambient temperature is greater than 0 °C. Shortly after the start-up, the bottom of the outdoor heat exchanger (starting at the inlet of the heat exchanger at the capillary exit) is very thick, and most of the heat exchanger has no condensation water, and the knot is delayed over time. Frost, extending from bottom to top; the indoor fan is always running at low speed with anti-cold wind; the system is frequently defrosted.
The third reason is that the outdoor ambient temperature is greater than 0 °C. Shortly after the start-up, the upper half of the outdoor heat exchanger (the heat exchanger outlet and the return air pipe) is thickly frosted and is delayed from top to bottom over time on the heat exchanger ( There is a heat exchanger outlet to the heat exchanger inlet direction) frosting is extended; and the heating effect is poor; the air conditioner is frequently defrosted. This fault is generally caused by too much refrigerant in the system, which often occurs after maintenance and addition of refrigerant. "
Achromatic lenses are a combination of a positive low refractive index (corona crown ) and negative high refractive index (flint). Compared with monolithic singlet lens the doublet design can provide users with additional design freedom and further optimize the performance of the lens. Therefore, the advantages of achromatic lenses are more significant than those of single lenses with equal diameter and focal length.
Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Lens, which is often designed by either cementing two elements together or mounting the two elements in a housing, creates smaller spot sizes than comparable singlet lenses.
Realpoo Optics offer doublet achromatic lens, triple achromatic lens, square achromatic lens, micro achromatic lens, edge blackening achromatic lens etc.
Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Lens, which is often designed by either cementing two elements together or mounting the two elements in a housing, creates smaller spot sizes than comparable singlet lenses.
Realpoo Optics offer doublet achromatic lens, triple achromatic lens, square achromatic lens, micro achromatic lens, edge blackening achromatic lens etc.
Achromatic Lens,Achromatic Lens Microscope,Achromatic Lens Focal Length,Microscope Optics
Changchun Realpoo Photoelectric Co., Ltd. , https://www.optics-realpoo.com