H7ET-NV-BH Omron, H7ET-NV-BH Datasheet - Page 12

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

Specifications of H7ET-NV-BH

• Operating Mode: Accumulative
• Output Type: None
• Voltage - Supply: None Required (Battery Included)
• Termination Style: Screw Terminal
• Display Type: LCD Backlit
• Signal Input Type: PNP/NPN Universal DC Voltage
• Supply Voltage Max: 24VDC
• Time Range Max: 999999.9h
• Character Size: 0.338"
• Time Range Min: 0h
• No. Of Digits / Alpha: 7
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: H7ETNVBH; Z2744

Connections
■ Terminal Arrangement
Bottom view: View of the Time Counter rotated horizontally 180°
■ Connections
H7ET Time Counter
PNP/NPN Universal DC Voltage Input Model With Backlight
1. Contact Input (Input by a Relay or Switch Contact)
Backlight Model
Timer
input
or Switch
Relay
Reset
input
Input
Backlight
24 VDC
Reset
Backlight
24 VDC
No-backlight Model
or Switch
Timer
input
Relay
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 < 1 µA
Backlight
24 VDC
Reset
Open collector of a
PNP transistor
or Open collector of an
NPN transistor
New H7ET
12