C-32 PCB-mounting Counters H7E@-N@P
Specifications
■ General
■ Ratings
Note: ON/OFF ratio 1:1
■ Characteristics
Note: The power supply terminals of the H7E@-N@P are considered as 3-VDC control terminals.
Item Total Counter Time Counter
H7EC-NP H7EC-NLP H7ET-NP
Operating mode Up type
Mounting method Direct mounting on PC Board or mounting on 28-pin socket
Reset External reset, Power-OFF reset
Number of digits 87
Time range --- 0.0h to 999999.9h
Max. counting speed 1 kHz 30 Hz ---
Count/Timer input No-voltage input
Display 7-segment LCD (character height: 8.6 mm)
Case color Transparent
Approved standard UL863, CSA C22.2 No.14
Item H7EC-NP
H7EC-NLP
H7ET-NP
Supply voltage 3 VDC (2.7 to 3.3 VDC)
Count/Timer 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.
Reset input
Max. counting speed (see note) 1 kHz: Minimum signal width of 0.5 ms
30 Hz: Minimum signal width of 16.7 ms
---
Minimum signal input width --- 1 s
Reset system External reset: Minimum signal width of 20 ms
Power-OFF reset: Minimum power OFF time of 500 ms
Ambient temperature Operating: -10°C to 55°C (with no condensation or icing)
Storage: -25°C to 65°C (with no condensation or icing)
Ambient humidity Operating: 25% to 85%
Item H7EC-NP
H7EC-NLP
H7ET-NP
Time accuracy --- ±100 ppm (25°C)
Noise immunity Square-wave noise generated by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
±500 V (Between count or 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
Malfunction:200 m/s
2
3 times each in 6 directions
Destruction:300 m/s
2
3 times each in 6 directions
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 (see note):EN61000-4-6: 10 V (0.15 to 80 MHz) (level 3)
Immunity Burst (see note): EN61000-4-4: 2-kV I/O signal line (level 4)
Weight Approx. 20 g
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