H7ET-NV-B Omron, H7ET-NV-B Datasheet - Page 5

• Manufacturer Part Number: H7ET-NV-B
• Description: COUNTER TIME 999KHRS DC INPUT
• Manufacturer: Omron
• Series: H7ETr

Specifications of H7ET-NV-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
• Supply Voltage: 4.5 V to 30 V
• 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-BV; H7ETNVB; Z872

Connections
■ Terminal Arrangement
Bottom view: View of the Total Counter rotated horizontally 180°
■ Connections
H7EC Total Counter
PNP/NPN Universal DC Voltage Input Model With Backlight
1. Contact Input (Input by a Relay or Switch Contact)
Backlight Model
or Switch
Relay
Count
input
Input
Reset
input
Reset
Backlight
24 VDC
Backlight
24 VDC
No-backlight Model
or Switch
Relay
Count
input
Reset
input
2. Solid-state Input
Note: 1. Terminals 2 and 4 (input circuit and reset circuit) are func-
Open collector of a
PNP transistor
or Open collector of an
NPN transistor
2. Select input transistors according to the following:
tionally isolated.
Input
Dielectric strength of the collector ≥ 50 V
Leakage current < 100 µA
Reset
Backlight
24 VDC
Open collector of a
PNP transistor
or Open collector of an
NPN transistor
New H7EC
5