H7ET
H7ET
2
Specifications
J GENERAL
Item H7ET-NV-B
H7ET-NV-BH
H7ET-NFV-B H7ET-N-B H7ET-NV1-B
H7ET-NV1-BH
H7ET-NFV1-B H7ET-N1-B
Operating mode UP type
Mounting method Panel mounting
External connections Screw terminals, optional wire-wrap terminals (See Note 3.)
Reset External/Manual reset
Display 7-segment LCD with or without backlight (character height: 8.6 mm) (See Note 1.)
Number of digits 7
Time range 0.0h to 999999.9h or 0.0h to 3999d23.9h (switchable
with switch)
0s to 999h59m59s or 0.0m to 9999h59.9m
(switchable with switch)
Count input PNP/NPN
universal DC
voltage input
AC/DC
multi-voltage
input
No-voltage
input
PNP/NPN
universal DC
voltage input
AC/DC
multi-voltage
input
No-voltage
input
Case color Black
Attachment Waterproof gasket, panel-mounting bracket, time unit labels (See Note 2.)
Approved standard UL508, CSA C22.2 No.14, Lloyds
Conforms to EN61010-1/IEC61010-1 (pollution degree2/overvoltage category III)
Conforms to VDE0106/P100
Note: 1. Only PNP/NPN universal DC voltage input models (-H models) are available with a backlight.
2. “-hours,” “-d-h,” “-h-m,” and “-h-m-s” labels are included.
3. Wire-wrap terminals (Y92S--37) can be ordered separately .
J RATINGS
Item H7ET-NVj-B, H7ET-NVj-BH H7ET-NFVj-B H7ET-Nj-B
Supply voltage Backlight model: 24 VDC (for
backlight)
No-backlight model: Not required
(powered by battery)
Not required (powered by battery)
Count 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 V AC/
VDC, 50/60 Hz
No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V
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.
max.
Minimum open impedance: 750 kΩ
min.
Minimum pulse width 1s
Reset system External reset and manual reset: minimum signal width of 20 ms
Terminal sc rew
tightening torque
0.98 N S mmax.
Ambient temperature Operating: --10°Cto55°C(14°F to 131°F) with no condensation or icing
Storage: --25°Cto65°C(--13°F to 149°F) with no condensation or icing
Ambient humidity Operating: 25% to 85%