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> Omron H7ER-nv-1-bh self-powered digital tachometer
Omron H7ER-nv-1-bh self-powered digital tachometer
Omron H7ER-NV-1-BH Self-Powered Digital Tachometer
OMRON H7ER-NV-1-BH Self-Powered Tachometer
V: PNP/NPN universal DC voltage input
None: 7-segment LCD without backlight
H: 7-segment LCD with backlight
Improved Appearance and Features
* Available with backlit LCD
* Revolutions displayed up to five digits
* PNP/NPN DC voltage input available
* Switchable dual revolution display type available (-NV1 models); extended up to 10000 m-1 {rpm}
* Dual revolution display according to encoder resolution used; 1000 s—1 {rps}/1000 m-1 {rpm} or 1000.0 s—1 {rps}/1000.0 m-1 {rpm}
Mounting method Panel-mounting
External connections Screw terminals, wire-wrap terminals (See Note 3.)
Display 7-segment LCD with or without backlight (character height: 8.6 mm) (See Note 4.)
Count input PNP/NPN universal DC
No-voltage input PNP/NPN universal DC voltage input
Max. counting speed 1 kHz 10 kHz
Max. revolutions displayed (See
1,000 s-1 {rps} (When encoder resolution of
1,000 m-1 {rpm} (When encoder resolution of
1,000.0 s-1 {rps} (When encoder
resolution of 10 pulse/rev is used.)
1,000.0 m-1 {rpm} (When encoder
resolution of 600 pulse/rev is used.)
â†â†’ 10,000 m-1 {rpm} (When encoder
resolution of 60 pulse/rev is used.)
Attachment Waterproof gasket, panel-mounting bracket, revolution unit labels (See Note 5.)
Approved standard UL508, CSA C22.2 No.14, Lloyds
Conforms to EN61010-1/IEC61010-1 (pollution degree2/overvoltage category III)
2. When there is no input, the display will be 0.0 or 0.
3. Wire-wrap Terminals (Y92S-37) can be ordered separately.
4. Only PNP/NPN Universal DC voltage input models are available with a backlight.
5. “rpm,†“rps,†“s-1,†and “m-1,†labels are included.
Supply voltage Backlight model: 24 VDC (for backlight lit)
Count input High (logic) level: 4.5 to 30 VDC
Maximum short-circuit impedance: 10 kΩ max.
(Input impedance: Approx. 4.7 kΩ)
short Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Max. counting speed 5-digit models: 10 kHz
Minimum signal width 10 kHz: 0.05 ms
Terminal screw tightening torque 0.98 N S mmax.
Ambient temperature Operating: -10C to 55C (14F to 131F) with no icing
Storage: -25C to 65C (-13F to 149F) with no icing
Ambient humidity Operating: 25% to 85%
Insulation resistance 100 MΩ min. (at 500 VDC) between
current-carrying metal parts and exposed
non-current-carrying metal parts, and between
the backlight power supply and count input
terminals/reset terminals for backlight models
100 MΩ min. (at 500 VDC) between
current-carrying metal parts and exposed
non-current-carrying metal parts
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between
current-carrying metal parts and exposed
non-current-carrying metal parts and between
the backlight power supply and count input
terminals/reset terminals for backlight models
1,000 VAC, 50/60 Hz for 1 min between
current-carrying metal parts and exposed
non-current-carrying metal parts
Impulse withstand voltage 4.5 kV between current-carrying terminal and exposed non-current-carrying metal parts
Noise immunity Between input terminals: ï½±600 V in normal
For backlight power supply (backlight model):
480 V in normal mode, 1.5 kV in command
500 V in normal mode, 1.5 kV in command
Static immunity ï½±8 kV (malfunction)
Vibration resistance Malfunction: 0.15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions
Destruction: 0.375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions
Shock resistance Malfunction: 200 m/s2 3 times each in 6 directions
Destruction: 300 m/s2 3 times each in 6 directions
Battery life 7 years min. with continuous input at 25ï½°C (lithium battery)
Emission Enclosure: EN55022 class B
Immunity ESD: EN61000-4-2: 4-kV contact discharge (level 2)
Immunity RF-interference from AM Radio Waves:
ENV50140: 10 V/m (80 MHz to 1 GHz) (level 3)
Immunity RF-interference from Pulse-modulated Radio Waves:
ENV50204: 20 V/m (900 MHz 5 MHz) (level 3)
Immunity Conducted Disturbance: ENV50141: 10 V (0.15 to 80 MHz ) (level 3)
Immunity Burst: EN61000-4-4: 2-kV power line (level 3)
2-kV I/O signal line (level 4)
Enclosure rating Front panel: IP66, NEMA4
If you require more detailed specifications, please contact the manufacturer for technical support.
(Worldwide including Hawaii, Alaska, Canada)
This warranty excludes consumable goods. Consumable goods are not guaranteed to come with the item unless otherwise noted in the item description. Consumable goods includes: toner, ink cartridges, bulbs, and batteries.
All California residents will be charged CA sales tax during the Checkout process.
Please click on the links below for answers frequently asked questions about that category.
Questions? Check out our Frequently Asked Questions page for detailed answers.
Request for return merchandise authorization (RMA)
Call us. (Monday-Friday 10AM-6PM PST)
Mailing address for money orders and checks
Tel: (***) 757-3863 (Toll Free)
