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What Is A Substitute Product For Old H7ER Tachometers?

Modified on Sun, 11 May, 2025 at 10:24 PM

1.It depends on H7ER model. Refer to the following table.

Display			LCD (character height: 6.7 mm)
Operating mode			Incremental type
Mounting method			Flush mounting					Direct mounting on PC board
Count input			No-voltage	DC voltage			No-voltage	DC voltage
Number of digits			4	4	5	5	4	4, 5
Screw terminals	Applicable encoder resolution	1 P/R	H7ER-B	H7ER-BV			---	---
		10 P/R			H7ER-BV1
		60 P/R	H7ER-B2		H7ER-BV2
		600 P/R			H7ER-BV3
		ntlp				H7ER-SBV
Wire-wrap terminals		1 P/R	H7ER	H7ER-V		---	---	---
		10 P/R			H7ER-V1
		60 P/R			H7ER-V2
		600 P/R			H7ER-V3
DIP terminals		1 P/R	---	---	---	---	H7ER-P	H7ER-VP
		60 P/R						H7ER-V2P
			(1) H7ER-N	(2) H7ER-NV	(3) H7ER-NV1	(4) K3NR ntlp	(5) H7ER-N ntlp

Note: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 H7ER-N.

If a wire-wrap terminal was used, Y92S-37 Wire-wrap Terminals (two in one set) must be separately purchased and attached to the terminal block.

3.The substitute product in column (2) is H7ER-NV.

If a wire-wrap terminal was used, Y92S-37 Wire-wrap Terminals (two in one set) must be separately purchased and attached to the terminal block.

4.The substitute product in column (3) is H7ER-NV1.

If a wire-wrap terminal was used, Y92S-37 Wire-wrap Terminals (two in one set) must be separately purchased and attached to the terminal block.
The maximum revolution displayed must be adjusted using the counting speed switch.

5.There is no substitute in column (4) because H7ER-N series do not have wide range encoders.

The function can be replicated using a pre-scaling function such as the one provided by K3NR Digital Panel Indicator but the size will be significantly different.

6.There is no substitute in column (5) because H7ER-N series do not have PC board mounting models.

However, H7ER-N can be used in place of H7ER-P, H7ER-NV in place of H7ER-VP, and H7ER-NV1 in place of H7ER-V2P, if the mounting methods are not considered.

7.General Comparison of H7ER and H7ER-N

Compared item	H7ER	H7ER-N
Number of digits	4/5	4/5
Character height	6.7 mm	8.6 mm
Max. revolutions displayed	4 digits fixed: H7ER-B, -BV, -B2, etc. 5 digits fixed: H7ER-BV1, -BV2, -BV3N, etc.	4 digits fixed: H7ER-N, -NV 5 digits, counting speed switch method: H7ER-NV1
Battery replacement	Not possible	Possible (no PCB mounting models)