Maintenance teams planning replacements for H7ET-NV1-H frequently review Omron SMPS 24V 10A, Omron H7Ec N and Omron Photoelectric Sensors E3T Series to prevent downtime, checking availability and compatibility with existing systems.
Omron H7ET-NV1-H Counter
The Omron H7ET-NV1-H Counter is a high-visibility backlit time counter designed for long-duration timing in demanding industrial systems. It supports DC inputs from 4.5 to 30 VDC and offers selectable ranges up to 999999.9 hours or 3999 days 23.9 hours. With a 7-digit display, 20 ms reset performance, and excellent EMC immunity, it ensures stable and accurate operation. The IP66-rated front panel enhances durability against dust and moisture. Manufactured by Omron and available under Omron Counter products, this model belongs to the H7ET-N Series.
| Brand | Omron |
| Product Type | Counters |
| Model Number | H7ET-NV1-H |
Omron H7ET-NV1-H Counter - Technical Specifications
| Specification | Value |
|---|---|
| Function | Time Counter |
| Time counter ranges | Increment (UP) |
| Counter Time ranges | 0.0 h to 999999.9 h/0.0 h to 3999 d 23.9 h (selectable) |
| Time counter Set value read selector | Β±100 ppm (25 β) |
| Time counter Reset system | External and manual reset |
| Input signal | Count input, Reset |
| Input method | Voltage input |
| No-voltage input (No-contact inputοΌ/ Voltage input | Hight level: 4.5 to 30 VDC Low level: 0 to 2 VDC (Input resistance Approx. 4.7 kΞ©) |
| External/Manual Reset time | 20 ms |
| Display method | Backlit transmissive LCD |
| Display Digits | 7 digit |
| Display Character height | 8.6 mm (Black) |
| Display Zero suppression | Equipped |
| Ambient temperature (Operating) | -10 to 55 β (with no freezing or condensation) |
| Ambient temperature (Storage) | -25 to 65 β (with no freezing or condensation) |
| Ambient humidity (Operating) | 25 to 85 % |
| Insulation resistance | Between current carrying terminals and exposed non-current carrying metal parts: 100 MΞ© min. (at 500 VDC) Between backlight power terminals and timer input/reset terminals: 100 MΞ© min. (at 500 VDC) |
| Dielectric withstand voltage | Between current carrying terminals and exposed non-current carrying metal parts: 1000 VAC 50/60 Hz 1 min Between backlight power terminals and timer input/reset terminals: 1000 VAC 50/60 Hz 1 min |
| Impulse withstand voltage | Between current carrying terminals and exposed non-current carrying metal parts: 4.5 kV |
| Noise immunity | Between reset terminals: Β±600 V Between backlight power terminals: Β±480 V Between timer input terminals: Β±600 V square-wave noise by noise simulator (pulse width: 100 ns/1 Β΅s, 1-ns rise) |
| Static immunity | Β±8 kV (malfunction) |
| Vibration resistance | Destruction: 10 to 55 Hz, 0.375 mm single amplitude each in 3 directions for 2 h Malfunction: 10 to 55 Hz, 0.15 mm single amplitude each in 3 directions for 10 min |
| Shock resistance | Destruction: 300 m/s2, 3 times each in 6 directions Malfunction: 200 m/s2, 3 times each in 6 directions |
| Degree of protection | Case front: IP66, NEMA 4 (indoors), and UL Type 4X (indoors) |
| External connection method | Screw terminal |
| Case color | Light gray (Munsell 5Y7/1) |
| Weight | Approx. 65 g |
