Electronic timer for 24 x 48 panel mounting, H7ET Series
Large totaliser display with 8.6-mm high digits and backlighting options
Available with black or beige casing
24
´
48 mm DIN casing
Timers with 7-digit LCD display
Available with PNP/NPN universal DC voltage inputs
Self-powered by internal battery, which provides continuous use for approximately seven years and
can also be replaced
Key-protected switch to avoid accidental reset of the switch
Two operating modes
IP66 protection on front panel
Short body, just 48.5 mm long
Handling protection
Conforms to EMC EN50082-2, EN50081-1 standards for commercial,
residential and light industry uses
Dimension: Width 48 mm, Height 24 mm, Depth 48.5 mm, (aperture 45 x 22.5 mm)
Article
PNP / NPN DC voltage input
Multi-voltage AC / DC input
No voltage input
Supply voltage
24 V backlighting Internal battery is not required on models without backlighting
Internal battery not required
Internal battery
not required
Count input
High (logic) level: 4.5 → 30 Vdc. Low (logic) level: 0 → 2 Vdc (approx. input impedance 4.7 kΩ)
High (logic) level: 24 → 240 V AC / DC, 50 / 60 Hz. Low (logic) level: 0 → 2.4 V AC/DC 50 / 69 Hz
Short circuit impedance 10 kΩ max. Short circuit residual voltage 0.5 V max.
Open impedance 750 kΩ min.
Reset
input
No voltage input. Short circuit impedance: 10 kΩ max. Short circuit residual voltage: 0.5 V max. Open impedance 750 kΩ min.
Maximum counting speed
Counters: 30 Hz or 1 kHz
(selected using switch) Tachometers: 5 10 Hz digits, 4 1 kHz digits
Counters: 20 Hz
Counters: 30 Hz or 1 kHz
(selected using switch) Tachometers: 1 kHz
Min. signal width
Counters: 20 Hz: 25 ms Timers: 1 s Tachometers: 10 Hz
30 Hz: 16.7 ms, 1 kHz: 0.05 ms, 1 kHz: 0.5 ms
0.5 ms
Reset system
External reset and manual reset: minimum signal width 20 ms
Ambient humidity
Operating: 25% to 85%
Counter selection table
Item no.
Scale (selectable)
Input
Display backlighting
Black casing
H7E...