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H7EC-NV-B

Self-powered Totalizer

Image

Miniature Total Counter, 8 digit, Voltage input, backlight None, Reset key Equipped, Black

Digits 8 digit
External connection method Screw terminal
Mounting method Flush mounting

Item list of H7E[]-N

  • Ratings/Specifications
FunctionTotal Counter
CounterCount range0 to 99999999
Max. counting speed30 Hz/1 kHz (switching)
(ON/OFF ratio 1:1)
Minimum input signal width30 Hz: 16.7 ms
1 kHz: 0.5 ms
Input modeIncrement (UP)
Reset systemExternal and manual reset
InputInput signalCount input, Reset
Input methodVoltage input
Voltage inputHight level: 4.5 to 30 VDC
Low level: 0 to 2 VDC (Input resistance Approx. 4.7 kΩ)
Reset timeExternal reset20 ms
Manual reset20 ms
DisplayDisplay methodLCD
Digits8 digit
Character height8.6 mm (Black)
Zero suppressionEquipped
Key protectionKey protect Switch
Ambient temperature (Operating)-10 to 55 ℃ (with no freezing or condensation)
Ambient temperature (Storage)-25 to 65 ℃ (with no freezing or condensation)
Ambient humidity (Operating)25 to 85 %
Insulation resistanceBetween current carrying terminals and exposed non-current carrying metal parts: 100 MΩ min. (at 500 VDC)
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: ±600 V
Between reset terminals: ±600 V
square-wave noise by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
Static immunity±8 kV (malfunction)
Vibration resistanceDestruction: 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 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)
External connection methodScrew terminal
Case colorBlack (Munsell N1.5)
WeightApprox. 60 g
  • Dimensions

  • Terminal arrangement

  • Input connection diagram

Voltage input:

Series

Self-powered Totalizer

H7E[]-N