In sourcing discussions, H7ET-NFV1-B is often placed next to Omron SMPS 24V 10A, Omron H7Ec N and Omron Photoelectric Sensors E3T Series so procurement teams can align budgets and technical requirements effectively.
Omron H7ET-NFV1-B Counter
The Omron H7ET-NFV1-B Counter is a robust time counter with universal free-voltage input compatibility from 24 to 240 VAC/VDC, ensuring broad application flexibility. It supports extensive timing ranges up to 999999.9 hours or 3999 days 23.9 hours, suitable for long-duration monitoring. The 7-digit LCD with 8.6 mm black characters provides excellent readability, supported by reliable 20 ms reset capability. With IP66 front protection and strong noise, vibration, and shock resistance, it performs consistently in industrial settings. Manufactured by Omron and categorized under Omron Counter devices, this model is part of the H7ET-N Series.
| Brand | Omron |
| Product Type | Counters |
| Model Number | H7ET-NFV1-B |
Omron H7ET-NFV1-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 | Free voltage input |
| No-voltage input (No-contact inputοΌ/ Voltage input | Hight level: 24 to 240 VAC/VDC Low level: 0 to 2.4 VAC/VDC Short-circuit (ON) impedance: 10 kΞ© max. Open circuit impedance: 750 kΞ© min. |
| 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) Between timer input terminals and reset terminals: 100 MΞ© min. (at 500 VDC) |
| Dielectric withstand voltage | Between reset terminals and exposed non-current-carrying metal parts: 2200 VAC 50/60 Hz 1 min Between timer input terminals and exposed non-current-carrying metal parts: 3700 VAC 50/60 Hz 1 min Between timer input terminals and reset terminals: 2200 VAC 50/60 Hz 1 min |
| Impulse withstand voltage | Between current carrying terminals and exposed non-current carrying metal parts: 4.5 kV Between timer input terminals and reset terminals: 3 kV |
| Noise immunity | Between reset terminals: Β±500 V Between timer input terminals: Β±1.5 kV 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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