Humidity measuring device

A humidity measuring device configured to measure humidity of a gas, the humidity measuring device comprising:

• a measurement unit including a temperature sensing element configured to measure temperature, and a humidity sensing element configured to measure humidity;
• a casing including an accommodating section in which the measurement unit is accommodated;
• and
• a display unit including a display device, and which is fixed to the casing, wherein:
• the gas at the measurement location where the humidity of the gas is measured is the gas that is discharged from a dehumidifying device configured to dehumidify the gas;
• and
• the display unit comprises:
• a display control unit configured to control the display device to thereby cause the display device to display at least one of the humidity of the gas measured by the humidity sensing element, or a dew point temperature of the gas calculated based on both the temperature of the gas measured by the temperature sensing element and the humidity of the gas measured by the humidity sensing element,
• a replacement determination unit configured to determine whether or not the dehumidifying device has been replaced;
• and
• a correction unit which, in a case that the humidity of the gas measured by the humidity sensing element is higher than a threshold value immediately after having determined that the dehumidifying device has been replaced, thereafter, is configured to correct the humidity of the gas measured by the humidity sensing element, based on the humidity of the gas measured by the humidity sensing element immediately after having determined that the dehumidifying device has been replaced, and a dehumidifying capability of the dehumidifying device that has been replaced.

A humidity measuring device configured to measure humidity of a gas, the humidity measuring device comprising:

• a measurement unit including a temperature sensing element configured to measure temperature, and a humidity sensing element configured to measure humidity;
• a casing including an accommodating section in which the measurement unit is accommodated;
• and
• a display unit including a display device, and which is fixed to the casing, wherein:
• the gas at the measurement location where the humidity of the gas is measured is the gas that is discharged from a dehumidifying device configured to dehumidify the gas;
• and
• the display unit comprises;
• a display control unit configured to control the display device to thereby cause the display device to display at least one of the humidity of the gas measured by the humidity sensing element, or a dew point temperature of the gas calculated based on both the temperature of the gas measured by the temperature sensing element and the humidity of the gas measured by the humidity sensing element;
• and
• a replacement determination unit configured to determine whether or not the dehumidifying device has been replaced,
• wherein in a case that the humidity of the gas measured by the humidity sensing element is higher than a threshold value immediately after having determined that the dehumidifying device has been replaced, the display control unit controls the display unit to thereby cause a display to be displayed on the display device, the display prompting the user to replace the measurement unit.

A humidity measuring device configured to measure humidity of a gas, the humidity measuring device comprising:

• a measurement unit including a temperature sensing element configured to measure temperature, and a humidity sensing element configured to measure humidity;
• a casing including an accommodating section in which the measurement unit is accommodated;
• and
• a display unit including a display device, and which is fixed to the casing;
• and
• a coupling member connected in the middle between tube portions through which the gas flows,
• wherein:
• the display unit further comprises a display control unit configured to control the display device to thereby cause the display device to display at least one of the humidity of the gas measured by the humidity sensing element, or a dew point temperature of the gas calculated based on both the temperature of the gas measured by the temperature sensing element and the humidity of the gas measured by the humidity sensing element;
• the coupling member includes a coupling tube configured to connect one of the tube portions and another of the tube portions, and which enables the gas to flow between the one tube portion and the other tube portion;
• a filter is mounted in the coupling tube;
• the coupling tube includes an orifice;
• with respect to the flow of the gas in the coupling tube, the orifice is arranged at a location more downstream than the filter;
• the casing includes a first tube and a second tube configured to connect the coupling tube and the accommodating section, and to enable the gas to flow between the coupling tube and the accommodating section;
• with respect to the flow of the gas in the coupling tube, the first tube is connected to the coupling tube at a location more upstream than the orifice, and between the filter and the orifice;
• and
• with respect to a flow of the gas in the coupling tube, the second tube is connected to the coupling tube at a location more downstream than the orifice.