H7EC is Panasonic's self-powered eight-digit counter, with a counting range of 0 to 99999999 and dual input speeds of 30 Hz ←→ 1kHz (except for AC/DC multi-voltage input models).
The H7EC series is an eight‑digit self‑powered total counter designed for industrial automation. It offers selectable counting speeds from 30 Hz up to 1 kHz, various input options (PNP/NPN universal DC, AC/DC multi‑voltage, or no‑voltage), and optional back‑light LCD display. The device complies with UL508, CSA C22.2, EN61010‑1/IEC61010‑1 and other safety standards.
Installation can be performed with flush mounting brackets, waterproof packing, or joint mounting (non‑waterproof). Accessories such as wire‑wrap terminals, lithium batteries, and mounting adapters are supplied separately. Precautions cover battery handling, environmental limits, EMI immunity, and wiring guidelines to ensure reliable operation. This manual is written in Chinese.
| Number of digits | 8 |
|---|---|
| Input voltage (PNP/NPN universal DC) | 4.5 V to 30 V DC |
| Supply voltage (back‑light model) | 24 VDC (0.3 W max.) |
| Operating temperature range | -10 °C to 55 °C |
| Storage temperature range | -25 °C to 65 °C |
| Battery life (continuous use) | ≈7 years at 25 °C |
The built‑in lithium battery lasts about 7 years with continuous input at 25 °C.
The counter supports PNP/NPN universal DC input, AC/DC multi‑voltage input, and a no‑voltage input version.