


| Parameter | Value |
|---|---|
| Item (Self-powered time counter) | H7ET-NV_-_/H7ET-NV_-_H |
| Display (Self-powered time counter) | 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) |
| Attachment (Self-powered time counter) | Waterproof packing, flush mounting bracket, time unit labels |
| Case color (Self-powered time counter) | Light grey or black (-B models) |
| Reset input (Self-powered time counter) | No voltage inputMaximum short-circuit impedance:10 kΩ max.Short-circuit residual voltage: 0.5 V max.Minimum open impedance: 750 kΩ min. |
| Timer input (Self-powered time counter) | High (logic) level: 4.5 to 30 VDCLow (logic) level: 0 to 2 VDC(Input impedance: Approx. 4.7 kΩ) |
| Reset system (Self-powered time counter) | External reset and manual reset: Minimum signal width of 20 ms |
| Time accuracy (Self-powered time counter) | ±100 ppm (25°C) |
| Operating mode (Self-powered time counter) | Accumulating |
| Supply voltage (Self-powered time counter) | Backlight model: 24 VDC (0.3 W max.) (for backlight)No-backlight model: Not required(powered by built-in battery) |
| Light grey body (Self-powered time counter) | Black body |
| Mounting method (Self-powered time counter) | Flush mounting |
| No-voltage input (Self-powered time counter) | 7-segment LCD |
| Number of digits (Self-powered time counter) | 7 |
| Ambient temperature (Self-powered time counter) | Operating: −10 to 55°C (with no condensation or icing), storage: −25 to 65°C (with no condensation or icing) |
| Minimum pulse width (Self-powered time counter) | 1 s |
| Degree of protection (Self-powered time counter) | Front-panel: IP66, NEMA4 with waterproof packing, terminal block: IP20 |
| External connections (Self-powered time counter) | Screw terminals |
| Size in mm (H×W×D) (Self-powered time counter) | 24×48×55.5 |
| Battery life (reference) (Self-powered time counter) | 10 years min. with continuous input at 25°C (lithium battery) |
| AC/DC multi-voltage input (Self-powered time counter) | 7-segment LCD |
| 7-segment LCD with backlight (Self-powered time counter) | H7ET-NV-H |
| PNP/NPN universalDC voltage input (Self-powered time counter) | 7-segment LCD |
| Time range 999999.9h <-> 3999d23.9h (switchable) (Self-powered time counter) | Time range 999h59m59s <-> 9999h59.9m |
Technical specifications and performance data
Installation and operation guide