No-voltage input

7-segment LCD

H7ET-N

H7ET-N-B

H7ET-N1

H7ET-N1-B

PNP/NPN universal
DC voltage input

7-segment LCD

H7ET-NV

H7ET-NV-B

H7ET-NV1

7-segment LCD with backlight

H7ET-NV-H

H7ET-NV-BH

H7ET-NV1-BH

AC/DC multi-voltage input

7-segment LCD

H7ET-NFV

H7ET-NFV-B

H7ET-NFV1

H7ET-NFV1-B

Operating mode

Accumulating

Mounting method

Flush mounting

External connections

Screw terminals

Display

7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm)

Number of digits

7

Case color

Light grey or black (-B models)

Attachment

Waterproof packing, flush mounting bracket, time unit labels

Supply voltage

Backlight model: 24 VDC (0.3 W max.) (for backlight)

No-backlight model: Not required
(powered by built-in battery)

Not required (powered by built-in battery)

Timer input

High (logic) level: 4.5 to 30 VDC
Low (logic) level: 0 to 2 VDC
(Input impedance: Approx. 4.7 kΩ)

High (logic) level:
24 to 240 VAC/VDC, 50/60 Hz
Low (logic) level:
0 to 2.4 VAC/VDC, 50/60 Hz

No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.

Reset input

No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.

Minimum pulse width

1 s

Reset system

External reset and manual reset: Minimum signal width of 20 ms

Ambient temperature

Operating: −10 to 55°C (with no condensation or icing), storage: −25 to 65°C (with no condensation or icing)

Time accuracy

±100 ppm (25°C)

Degree of protection

Front-panel: IP66, NEMA4 with waterproof packing, terminal block: IP20

Battery life (reference)

10 years min. with continuous input at 25°C (lithium battery)

Size in mm (H×W×D)

24×48×55.5