H7ET-N-B Omron, H7ET-N-B Datasheet - Page 6

• 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

PNP/NPN Universal DC Voltage Input Model Without Backlight
1. Contact Input (Input by a Relay or Switch Contact)
AC/DC Multi-voltage Input Model
2. Solid-state Input
Note: 1. Terminals 2 and 4 (input circuit and reset circuit) are
or Open collector of an
NPN transistor
Open collector of a
PNP transistor
or Switch
or Switch
Relay
Relay
2. Select input transistors according to the following:
functionally isolated.
Dielectric strength of the collector ≥ 50 V
Leakage current < 100 µA
Input
Input
Input
Reset
Reset
Reset
or Open collector of an
NPN transistor
Open collector of a
PNP transistor
or Switch
or Open collector of
an NPN transistor
or Switch
Relay
Relay
Note: Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
No-voltage Input Model
1. Contact Input (Input by a Relay or Switch Contact)
2. Solid-state Input
Note: 1. Residual voltage in the output section of Proximity
Note: Use Relays and Switches that have high contact
(Open Collector Input of an NPN Transistor)
Relay
2. Select input transistors according to the following:
Open collector of an
NPN transistor
reliability because the current flowing from terminals
1 or 3 is small. It is recommended that OMRON's
G3TA-IA/ID be used as the SSR.
Sensors or Photoelectric Sensors becomes less than
0.5 V because the current flowing from terminals 1 or 3
is small thus allowing easy connection.
or Switch
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
Input
Terminals 2 and 4 are
internally connected.
Terminals 2 and 4 are
internally connected.
Input
Reset
Reset
or Switch
Open collector of an
NPN transistor
or Switch
New H7EC
Relay
6