H7ET-N-B Omron, H7ET-N-B Datasheet - Page 25

• Manufacturer Part Number: H7ET-N-B
• Description: COUNTER TIME 999KHRS NO VOLT IN
• Manufacturer: Omron
• Series: H7ETr

Specifications of H7ET-N-B

• Operating Mode: Accumulative
• Output Type: None
• Voltage - Supply: None Required (Battery Included)
• Termination Style: Screw Terminal
• Display Type: LCD Non-Backlit
• Timing Range: 999999.9 h, 3999 d 23.9 h
• Signal Input Type: Voltage
• Time Range Max: 999999.9h
• Character Size: 0.338"
• Backlight Power: 24VDC
• Time Range Min: 0h
• No. Of Digits / Alpha: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: H7ET-B; H7ETNB; Z870

Input Connections
Input Connection Contact Input
When the H7EC-NP is used, relay chattering may be counted. Use
the H7EC-NLP, one of the low-speed input models.
Operation
■ Operating Modes
H7EC Total Counter
Incrementing Operation
(Up)
Counting display values
Relay
Count input
Reset
Or
Reset input
H7E@-N@P
(Full-scale
−1)
Count/Timer input
Full-scale
Or
Relay
H7ET Time Counter
Incrementing Operation
(Up)
Solid State Input
Use a transistor for input that satisfies the following conditions:
Use a diode (D) having a forward voltage as small as possible (0.1 V
max. at I
TTL or C-MOS IC Input
Open-collector Transistor Input
TTL or C-MOS IC
Timer display values
Collector breakdown voltage ≥ 50 V
Leakage current < 1 µA
Reset input
Internal clock
timer value
F
Timer input
of 20 µA).
Reset
H7E@-N@P
Reset input
Count/Timer input
H7E@-N@P
Count/Timer input
(Full-scale
−0.1
Full-scale
H7E@-N@P
TTL or C-MOS IC
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