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Item
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H7EC-NV-_/H7EC-NV-_H
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H7EC-NFV-_
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H7EC-N-_
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Operating mode
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Up type
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Mounting method
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Flush mounting
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External connections
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Screw terminals, optional wire-wrap terminals
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Number of digits
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8
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Display
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7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm)
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Max. counting speed
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30 Hz/1 kHz
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20 Hz
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30 Hz/1 kHz
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Case color
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Light grey or black (-B models)
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Attachment
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Waterproof packing, flush mounting bracket
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Supply voltage
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Backlight model: 24 VDC (0.3 W max.)
(only for backlight)
No-backlight model: Not required
(powered by built-in battery)
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Not required (powered by built-in battery)
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Count input
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High (logic) level: 4.5 to 30 VDC
Low (logic) level: 0 to 2 VDC
(input impedance: Approx. 4.7 kΩ)
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High (logic) level:
24 to 240 VAC/VDC, 50/60 Hz
Low (logic) level:
0 to 2.4 VAC/VDC, 50/60 Hz
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No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
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Reset input
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No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
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Minimum signal width
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20 Hz: 25 ms, 30 Hz: 16.7 ms, 1 KHz: 0.5 ms
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Reset system
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External reset and manual reset: Minimum signal width of 20 ms
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Ambient temperature
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Operating: -10 to 55°C (with no condensation or icing), storage: -25 to 65°C (with no condensation or icing)
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Degree of protection
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Front-panel: IP66, NEMA4, terminal block: IP20
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Battery life (reference)
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7 years min. with continuous input at 25°C (lithium battery)
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Size in mm (H×W×D)
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24×48×55.5
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