Self-powered Time Counter

H7ET

C-19

I Characteristics

Note: Weight includes waterproof packing and flush mounting bracket.

I Reference Value

Item

H7ET-NV

@-@

H7ET-NV

@-H@

H7ET-NFV

@-@

H7ET-N

@-@

Time accuracy

±100 ppm (25°C)

Insulation resistance

100 M

Ω min. (at 500 VDC) between

current-carrying metal parts and ex-

posed non-current-carrying metal

parts, and between the backlight pow-

er supply and timer input terminals/re-

set terminals for backlight models

100 M

Ω min. (at 500 VDC) between

current-carrying metal parts and ex-

posed non-current-carrying metal

parts and between timer input termi-

nals and reset terminals

100 M

Ω min. (at 500 VDC) between

current-carrying metal parts and ex-

posed non-current-carrying metal

parts

Dielectric strength

1,000 VAC, 50/60 Hz for 1 min be-

tween current-carrying metal parts and

exposed non-current-carrying metal

parts and between the backlight power

supply and timer input terminals/reset

terminals for backlight models

3,700 VAC, 50/60 Hz for 1 min be-

tween timer input terminals and ex-

posed non-current-carrying metal

parts

2,200 VAC, 50/60 Hz for 1 min be-

tween reset terminals and exposed

non-current-carrying metal parts and

between timer input terminals and re-

set terminals

1,000 VAC, 50/60 Hz for 1 min be-

tween current-carrying metal parts and

exposed non-current-carrying metal

parts

Impulse withstand

voltage

4.5 kV between current-carrying termi-

nal and exposed non-current-carrying

metal parts

4.5 kV between current-carrying termi-

nal and exposed non-current-carrying

metal parts

3 kV between timer input terminals and

reset terminals

4.5 kV between current-carrying termi-

nal and exposed non-current-carrying

metal parts

Noise immunity

Square-wave noise generated by noise simulator (pulse width: 100 ns/1

µs, 1-ns rise)

±600 V (Between timer input terminals/

Between reset terminals)

±480 V (Between the backlight power

supply terminals for backlight models)

±1.5 kV (Between timer input termi-

nals)

±500 V (Between reset terminals)

±500 V (Between timer input terminals/

Between reset terminals)

Static immunity

±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

EMC

(EMI)

EN61326

Emission Enclosure:

EN55011 Group 1 class B

(EMS)

EN61326

Immunity ESD:

EN61000-4-2: 4 kV contact discharge (level 2)

8 kV air discharge (level 3)

Immunity RF-interference from AM Radio Waves:

EN61000-4-3: 10 V/m (80 MHz to 1 GHz) (level 3)

Immunity RF-interference from Pulse-modulated Radio Waves:

EN61000-4-3: 10 V/m (900 MHz

± 5 MHz) (level 3)

Immunity Conducted Disturbance: EN61000-4-6: 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)

Degree of protection

Front panel:

IP66, NEMA4 with waterproof packing

Terminal block: IP20

Weight (see note)

No-backlight model: Approx. 60 g

Backlight model: Approx. 65 g

Approx. 60 g

Approx. 60 g

Item

Value

Note

Battery life

10 years min. with continuous input at

25

°C (lithium battery)

The battery life is calculated according to the conditions in the left column and

therefore is not a guaranteed value. Use these value as reference for mainte-

nance or replacement.