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Omron
Omron

H7EC-B Datasheet Preview

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Subminiature Count Totalizers
Require No External Power Supply
s Subminiature 48 x 24 mm (1.89 x .94 in)
s Improved noise immunity
s Screw terminal and wire-wrap types
available
s AC, DC, and no-voltage input
s Printed circuit board version (H7Eu-P)
s Panel adapters for existing cutouts
(order separately from accessories)
s Self-powered, 3 V lithium battery
H7EC
Ordering Information
s COUNT TOTALIZERS
Operating mode
UP type
Display
LCD digital, 5.1 mm (0.2 in) high
Reset system
External (electrical) reset
External/Manual reset
Number of digits
Count input
7
AC/DC
voltage
input
DC voltage input
No-voltage
contact input
6
DC voltage input
No-voltage
contact input
Max. counting speed* 20 cps
1 kcps 30 cps
1 kcps 30 cps 1 kcps
30 cps
1 kcps
30 cps
Terminals Wire-wrap — H7EC-V H7EC-VL H7EC H7EC-L H7EC-VM H7EC-VLM H7EC-M H7EC-LM
Screw H7EC-FBV H7EC-BV H7EC-BVL H7EC-B H7EC-BL H7EC-BVM H7EC-BVLM H7EC-BM H7EC-BLM
.* For details about matching the counting speed with the appropriate input device, see "Selecting the H7EC Totalizing Counter," located
in Operation section.
s ACCESSORIES
Description
Panel adapters
Fits 26 x 45 mm (1.02 x 1.77 in.) rectangular cutout
Fits 27.5 x 52.5 mm (1.1 x 2.07 in.) rectangular cutout
Fits 24.8 x 48.8 mm (0.98 x 1.92 in.) rectangular cutout
Part number
Y92F-75
Y92F-76
Y92F-77



Omron
Omron

H7EC-B Datasheet Preview

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H7EC
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Specifications
s RATINGS
Supply voltage
Input
Maximum counting
speed*
Reset time
Not required (powered by built-in battery)
AC/DC voltage input:
24 to 240 VAC ± 10%, 50/60 Hz, or
6 to 240 VDC ± 10% at "High" (logic) level
0 to 1.5 VAC ± 10%, 50/60 Hz, or
0 to 2 VDC ± 10% at "Low" (logic) level
DC voltage input: 4.5 to 30 VDC at "High" (logic) level
0 to 2 VDC at "Low" (logic) level
No-voltage input:
Maximum short-circuit impedance: 10 kmax.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 500 kmin.
1 kcps: Minimum signal width 0.5 ms
30 cps: Minimum signal width 16.7 ms
20 cps: Minimum signal width 25 ms
External and manual reset types (6-digit models): 20 ms reset signal
External reset types (7-digit models): 20 ms reset signal
* ON/OFF ratio 1:1
Approved by the following standards
UL
CSA
CE (EMC)
s CHARACTERISTICS
Insulation resistance
Dielectric strength
Vibration
Shock
Ambient temperature
Humidity
Battery life
Weight
100 Mmin. at 500 VDC
1,000 VAC 50/60 Hz for 1 minute between current-carrying terminals and exposed
non-current-carrying metal parts
Mechanical durability: 10 to 55 Hz; 0.75 mm (0.03 in) double amplitude
Malfunction durability: 10 to 55 Hz; 0.3 mm (0.02 in) double amplitude
Mechanical durability: Approx. 30 G
Malfunction durability: Approx. 10 G
Operating: -10° to 55°C (14° to 131°F)
Storage: -25° to 65°C (-13° to 149°F)
Operating: 35 to 85% RH
30 cps type: 7 years min. of continuous input
1 kcps and 20 cps types: 6 years min. of continuous input
AC/DC voltage input type: Approx. 90 g (3.18 oz)
DC voltage and No-voltage input types: Approx. 60 g (2.12 oz)
(including mounting bracket)
Timing Chart
H7EC
2


Part Number H7EC-B
Description Self Powered Counters
Maker Omron
Total Page 5 Pages
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