Many procurement teams check H7ET-N1-B against Omron Photoelectric Sensor, Omron H7Ec N and Omron Photoelectric Sensors E3T Series before signing purchase orders, verifying quality, compliance, and after-sales support availability.
Omron H7ET-N1-B Counter
The Omron H7ET-N1-B Counter is an efficient time counter designed for long-duration timing applications requiring consistent accuracy. It supports hour and day measurement up to 999999.9 h or 3999 d 23.9 h, offering extensive monitoring capability. With a 7-digit LCD and clear 8.6 mm character height, visibility remains excellent in control panels. The unit operates on no-voltage input with reliable 20 ms reset performance. Its IP66-rated front panel, combined with strong resistance to noise, vibration, and shock, ensures durability. Manufactured by Omron and included under Omron Counter devices, this model belongs to the H7ET-N Series.
| Brand | Omron |
| Product Type | Counters |
| Model Number | H7ET-N1-B |
Omron H7ET-N1-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 | No-voltage input |
| No-voltage input (No-contact inputοΌ/ Voltage input | Short-circuit (ON) impedance: 10 kΞ© max. Residual voltage: 0.5 V max. (Actual performance 1.0 V) 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) |
| 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±500 V Between timer input terminals: Β±500 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 |
