The H7CX series is a multifunction counter/tachometer with a highly visible backlit negative transmissive LCD display. It features an ergonomic up/down digit keys and DIP switch for intuitive setting, PNP/NPN switchable DC voltage input, finger-safe terminals, and IP66/NEMA4/UL Type 4X waterproof rating. The H7CX-A is a multifunction preset counter with a bright, easy-to-view negative transmissive LCD display and can be configured as various counting modes. The H7CX-R is a tachometer used for measuring rotational speed.
This manual covers the Omron H7CX Series multifunction counter and tachometer devices, describing the H7CX-A (counter) and H7CX-R (tachometer) variants. It includes safety precautions, warranty information, and detailed operating procedures for a wide range of counting modes and measurement functions.
Key features include a highly visible backlit negative‑transmissive LCD, selectable PNP/NPN DC input, finger‑safe terminals, and compliance with IP66/NEMA4/UL Type 4X. The document provides wiring diagrams, configuration tables, and performance specifications such as supply voltage ranges, power consumption, and maximum counting speeds.
| Power consumption | Approx. 9.2 VA at 264 VAC |
|---|---|
| Maximum counting speed | 30 Hz or 5 kHz (selectable) |
| Display type | Backlit negative transmissive LCD |
| Number of digits | 4 digits (‑999 to 9,999) |
| Ambient temperature range (operating) | ‑10 °C to 55 °C |
| IP rating | IP66, NEMA4, UL Type 4X |
| Input ON impedance | 1 kΩ max. |
| Contact output rating | 3 A at 250 VAC / 30 VDC |
The H7CX Series complies with IP66, NEMA4, and UL Type 4X ratings.
The device can count up to 30 Hz or, when configured, up to 5 kHz.
It uses a backlit negative‑transmissive LCD for high visibility.