Before procurement teams confirm H7ET-NV-B, they typically review Omron Photoelectric Sensor, Omron H7Ec N and Omron Photoelectric Sensors E3T Series to double-check performance ratings, stock availability, and supplier credibility carefully.
Omron H7ET-NV-B Counter
The Omron H7ET-NV-B Counter is a dependable time counter tailored for DC voltage input systems, offering measurement ranges up to 999999.9 hours or 3999 days 23.9 hours. Its high-visibility 7-digit LCD with bold black characters allows easy monitoring. Supporting voltage inputs from 4.5 to 30 VDC, it ensures compatibility with a wide range of control signals. With a 20 ms reset response, IP66 front sealing, and strong resistance to noise, shock, and vibration, it suits demanding industrial environments. Manufactured by Omron and available under Omron Counter solutions, this model belongs to the H7ET-N Series.
| Brand | Omron |
| Product Type | Counters |
| Model Number | H7ET-NV-B |
Omron H7ET-NV-B 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 | 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) |
| Dielectric withstand voltage | Between current carrying terminals and exposed non-current carrying metal parts: 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 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 | Black (Munsell N1.5) |
| Weight | Approx. 60 g |
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