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Omron H7EC-NFV Counter

The Omron H7EC-NFV Counter supports a versatile free-voltage input range of 24 to 240 VAC/VDC, making it suitable for applications requiring broad signal compatibility. With a consistent 20 Hz counting speed, clear 8-digit LCD, and convenient external/manual reset options, it provides reliable operation for general-purpose automation. Its IP66-rated front, strong noise immunity, and excellent vibration/shock resistance ensure stable performance in demanding environments. Manufactured by Omron and offered under Omron Counter solutions, this model belongs to the reliable Omron H7EC Series.

Omron H7EC-NFV Counter
Datasheet
BrandOmron
ProductCounters
Model NumberH7EC-NFV

Omron H7EC-NFV Counter - Technical Specifications

SpecificationValue
FunctionTotal Counter
Count range0 to 99999999
Max. counting speed20 Hz (ON/OFF ratio 1:1)
Minimum input signal width20 Hz: 25 ms
Reset systemExternal and manual reset
Input signalCount input, Reset
No-voltage input (Contact input）Hight level: 24 to 240 VAC/VDC Low level: 0 to 2.4 VAC/VDC
Display methodLCD
Display Digits8 digit
External connectionsScrew terminal
Input modeFree voltage input
External/Manual Reset time20 ms
Ambient temperature (Storage)-10 to 55 ℃ (with no freezing or condensation)
Ambient humidity (Operating)25 to 85 %
Dielectric withstand voltageBetween current carrying terminals and exposed non-current carrying metal parts: 1000 VAC 50/60 Hz 1 min
Impulse withstand voltageBetween current carrying terminals and exposed non-current carrying metal parts: 4.5 kV
Noise immunityBetween count input terminals: ±500 V Between reset terminals: ±500 V square-wave noise by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
Static immunity±8 kV (malfunction)
Vibration resistanceBetween current carrying terminals and exposed non-current carrying metal parts: 100 MΩ min. (at 500 VDC)
Shock resistanceDestruction: 300 m/s2, 3 times each in 6 directions Malfunction: 200 m/s2, 3 times each in 6 directions
Degree of protectionCase front: IP66, NEMA 4 (indoors), and UL Type 4X (indoors)
Case colorLight gray (Munsell 5Y7/1)
WeightApprox. 60 g

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H7EC-NV-HH7EC-NV-H
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