What Is A Substitute Product For Old H7A Digital Counters? 1.It depends on the H7A model. Refer to the following table.
Note: 1.Preset Counters without "D" do not display the present value. Models with "D" have number displaying functions. The recommended substitute products all have number displaying functions. 2.The bottom row gives recommended substitute products or models with substitute functions. For details, refer to the following information. 2.The substitute product in column (1) is 100 to 240 VAC H7AN2D Preset Counters. 3.The substitute product in column (2) is 100 to 240 VAC H7AN4D Preset Counters. 4.The substitute product in column (3) is 100 to 240 VAC H7ANR6D Preset Counters. However, half of the panel cutout must be rebuilt. 5.The substitute product in column (4) is 100 to 240 VAC H7ANR8D Preset Counters. However, half of the panel cutout must be rebuilt. 6.The substitute product in column (5) is 100 to 240 VAC H7ANT4 Totalizing Counters. 7.The substitute product in column (6) is 100 to 240 VAC H7ANRT8 Totalizing Counters. However, half of the panel cutout must be rebuilt. 8.The substitute product in column (7) is 100 to 240 VAC H7AN2DM Preset Counters. 9.The substitute product in column (8) is 100 to 240 VAC H7AN4DM Preset Counters. 10.The substitute product in column (9) is 100 to 240 VAC H7AN6DM Preset Counters. However, half of the panel cutout must be rebuilt. 11.The substitute product in column (10) is 100 to 240 VAC H7ANR8DM Preset Counters. However, half of the panel cutout must be rebuilt. 12.The substitute product in column (11) is 100 to 240 VAC H7ANT4M Totalizing Counters. 13.The substitute product in column (12) is 100 to 240 VAC H7ANRT8M Totalizing Counters. However, half of the panel cutout must be rebuilt. 14.General Comparison of H7A and H7AN
Note: 1.There is no substitute product for the 24 VAC model because there are no 24 VAC H7AN models. Step up the voltage with a transformer and use 100 to 240 VAC model or see whether 24 VAC/12 to 24 VDC H7BR Digital Counters can be used. 2.H7A is an incrementing counter. For H7AN 2digit or 4 digit counter, set the UPDOWN switch to UP, and for H7AN 6digit or 8digit counter, set the counting function selector to UP. These are the default settings. 3.The panel cutout for the front panel with dimensions W72, H72 are compatible. 4.Be careful because the terminal numbers are not compatible. Link: 
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