The corrected air flow capacity, which considers the user’s operating conditions, is required for selecting air dryer. Select using the following procedures. Read the correction IDF Selection Example IDU Selection Example factors Obtain the correction factors A to D suitable for your operating condition from the table on the next page. 2 Calculate the corrected air flow capacity. Obtain the corrected air flow capacity from the following formula. Corrected air flow capacity = Air flow rate ÷ (Correction factor A x B x C x D) Corrected air flow capacity = 0.3m3/min ÷ (0.82 x 0.96 x 1 x 0.88) = 0.43m3/min Corrected air flow capacity = 0.4m3/min ÷ (0.95 x 0.93 x 1 x 0.88) = 0.51m3/min 4 Select the model. Select the model with air flow capacity which exceeds the corrected air flow capacity from the specification table. (For air flow capacity, refer to the data E on page 27.) According to the corrected air flow capacity of 0.43m3/min, the IDF4E will be selected which air flow capacity is 0.52 m3/min at 50 Hz. According to the corrected air flow capacity of 0.51m3/min, the IDU4E will be selected which air flow capacity is 0.57 m3/min at 60 Hz. 5 Options Refer to pages 49 to 54. Refer to pages 49 to 54. Refer to pages 28, 32, 35 and 40. Refer to pages 55 through to 64. Refer to pages 43 and 46. 6 Finalize the model 7 number. Select the optional 8 accessories. Check the coefficient. Correction factor = 0.82 x 0.96 x 1 x 0.88 = 0.69 Max. coefficient value is 1.5. Correction factor is 1.5 when the calculation result is 1.5 or greater. Correction factor = 0.95 x 0.93 x 1 x 0.88 = 0.78 Max. coefficient value is 1.5. Correction factor is 1.5 when the calculation result is 1.5 or greater. 3 Select the IDF or IDU. Select the IDF or IDU from inlet air temperature used. . Inlet air temperature 5 to 50°C ・・・・・ IDF (For IDF100F to 150F, up to 60°C is allowed.) . Inlet air temperature 50 to 80°C ・・・・・ IDU 1 Data symbol Correction factor Note) 40°C 35°C 10°C 0.5 MPa 0.3 m3/min 50 Hz A B C D . . 0.82 0.96 1 0.88 . . Inlet air temperature Ambient temperature Outlet air pressure dew point Inlet air pressure Air flow rate Power supply frequency Condition Note) Values obtained from “Correction Factors” on page 27. Data symbol Correction factor Note) 60°C 35°C 10°C 0.5 MPa 0.4 m3/min 60 Hz A B C D . . 0.95 0.93 1 0.88 . . Inlet air temperature Ambient temperature Outlet air pressure dew point Inlet air pressure Air flow rate Power supply frequency Condition Note) Values obtained from “Correction Factors” on page 27. Series IDF/IDU 26 Model Selection