Home Products Counters Omron H7ER Series H7ER-NV-BH Omron H7ER-NV-BH Counter The Omron H7ER-NV-BH Counter enhances visibility with a bright backlit LCD, making it ideal for dim or enclosed machinery panels. It supports 1 kHz and 10 kHz tachometer input modes with fast 0.5 ms and 0.05 ms response times for accurate measurement of high-speed equipment. Accepting 4.5–30 VDC voltage inputs, it integrates easily with encoders and sensors. Its IP66 front and strong noise, vibration, and shock immunity ensure long-term reliability. Manufactured by Omron and included under Omron Counter solutions, this model is part of the Omron H7ER Series .
Brand Omron Product Counters Model Number H7ER-NV-BH
Omron H7ER-NV-BH Counter - Technical Specifications Specification Value Function Tachometer Preset stages 1 kHz/10 kHz (selectable) Input signal Count input No-voltage input (Contact input） Voltage input: Hight level: 4.5 to 30 VDC
Low level: 0 to 2 VDC (Input resistance Approx. 4.7 kΩ) Display method Backlit transmissive LCD Display Digits 4 digit External connections Screw terminal Input mode Voltage input Tachometer Max. counting speed 0.5 ms(1 kHz)
0.05 ms(10 kHz) Tachometer Max Display speed 1000 s-1(rps) (When encoder resolution of 1 pulse/rev is used.)
1000 min-1(rpm) (When encoder resolution of 60 pulse/rev is used.) Display Character height 8.6 mm (Black) Display Zero suppression Equipped Ambient temperature (Storage) -10 to 55 ℃ (with no freezing or condensation) Ambient humidity (Operating) 25 to 85 % Dielectric withstand voltage Between current carrying terminals and exposed non-current carrying metal parts: 1000 VAC 50/60 Hz 1 min Impulse withstand voltage Between current carrying terminals and exposed non-current carrying metal parts: 4.5 kV Noise immunity Between count input terminals: ±500 V
square-wave noise by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise) Static immunity ±8 kV (malfunction) Vibration resistance Between current carrying terminals and exposed non-current carrying metal parts: 100 MΩ min. (at 500 VDC) Shock resistance Destruction: 300 m/s2, 3 times each in 6 directions
Malfunction: 200 m/s2, 3 times each in 6 directions Degree of protection Case front: IP66, NEMA 4 (indoors), and UL Type 4X (indoors) Case color Light gray (Munsell 5Y7/1) Weight Approx. 65 g
