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Omron H7EC-NFV-B Counter

The Omron H7EC-NFV-B Counter provides universal multi-voltage AC/DC input support from 24 to 240 VAC/VDC, delivering wide compatibility for varied industrial machinery. Its clear 8-digit LCD and stable 20 Hz counting capability ensure dependable totalizing in general automation environments. With external and manual reset options, IP66-rated protection, and strong resistance to noise, vibration, and shock, it guarantees reliable operation in demanding conditions. Manufactured by Omron and listed under Omron Counter products, this model belongs to the trusted Omron H7EC Series.

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

Omron H7EC-NFV-B 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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