Omron H7EC-N — Self-Powered 8-Digit Totalizer
SKU: H7EC-NUSD 18.00
Omron H7EC-N self-powered LCD totalizer, 8-digit, no-voltage input, 48 x 24 mm panel. In stock, China shipping.
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Product Overview
The Omron H7EC-N is a self-powered LCD totalizer from the H7E family, manufactured by Omron Corporation. Hengyixin Automation stocks this timer / counter at our Xiamen warehouse; orders placed before 14:00 CST ship same business day.
The unit ships in a 1/32 DIN (48 x 24 mm) flush panel housing with screw terminals. The 8-digit LCD has 8.6 mm character height and reads 0 to 99,999,999 without overflow. The H7EC-N is fully self-powered from an internal replaceable lithium battery - no external supply is needed for the counter itself.
Count input is no-voltage (dry contact or NPN open-collector pull-down). Maximum counting speed is 30 Hz or 1 kHz, selected by a DIP switch on the front. Reset is via the front-panel key. Front face is IP66; light-grey case. Operating range -10 to +55 C. For a PNP/NPN DC-voltage-input version of the same body, pick the H7ET-N; for a 48 x 48 mm AC counter-timer, the H5CC-A.
Key Features
- 1/32 DIN (48 x 24 mm) flush-mount LCD totalizer, 8 digits, 8.6 mm character height, 0 to 99,999,999 range
- Self-powered from internal replaceable lithium battery - no external supply needed for the counter
- No-voltage input (dry contact or NPN open-collector pull-down), 30 Hz / 1 kHz switchable max count speed
- Front-panel reset key, screw terminals, IP66 front face, light-grey case, -10 to +55 C operating
- SKU: H7EC-N
- Series: Omron H7E self-powered totalizer family
Best-Fit Applications
- Production-piece counter on a manual assembly station where the no-voltage contact input wires directly to a foot-switch
- Odometer-style length totalizer on a measuring wheel where the encoder pulses accumulate over a shift without external power
- Spare replacement on an existing H7E panel where the original battery has reached end of life and the install must match exactly
Buying Checklist
- Pick the H7EC-N for a self-powered 8-digit totalizer with no-voltage contact input and an IP66 front face.
- Pick the H7EC-NV instead when the input must be a PNP/NPN DC-voltage signal rather than a dry contact.
- Pick the H7CC-A instead when the panel needs a 48 x 48 mm timer/counter with outputs and an external supply.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron H7E self-powered totalizer family |
| Model / SKU | H7EC-N |
| Counting Function | Totalising (count up) |
| Digits / Range | 8 digits, 0 to 99,999,999 |
| Display | 7-segment LCD, 8.6 mm character height, no backlight |
| Count Input | No-voltage (dry contact or NPN open-collector), short-circuit 10 kOhm max, open 750 kOhm min |
| Max Counting Speed | 30 Hz or 1 kHz, selectable by DIP switch |
| Reset | Front-panel key (external reset not available on H7EC-N) |
| Power Supply | Self-powered by internal replaceable lithium battery (Y92S-36 spare) |
| Protection / Mounting | Front face IP66, NEMA 4 indoor, UL Type 4X indoor, screw terminals, flush panel mount |
| Dimensions / Weight | 48 (W) x 24 (H) x 48.5 (D) mm, 60 g, light-grey case |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for H7EC-N
Does the H7EC-N need external power?
No. The H7EC-N is fully self-powered from an internal replaceable lithium battery. Applying external voltage to the count input terminals will damage the unit - the H7EC-N accepts only a no-voltage contact or NPN pull-down.
H7EC-N vs H7EC-NV - what is the difference?
The H7EC-N is a no-voltage-input, self-powered totalizer for a simple dry-contact or NPN pull-down. The H7EC-NV accepts a PNP/NPN DC-voltage input (4.5 to 30 VDC) at higher noise immunity and is the right choice when the source is a transistor output rather than a contact.
How do I replace the H7EC-N battery?
Open the case and swap the Y92S-36 lithium cell. Omron's spec sheet notes UL / CSA compliance for the replacement cell. The counter retains the running total during the swap if the change is fast.
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