H7ET-N Omron, H7ET-N Datasheet - Page 9

• Manufacturer Part Number: H7ET-N
• Description: TIME COUNTER LCD NO-VOLT IN BG
• Manufacturer: Omron
• Series: H7ETr

Specifications of H7ET-N

• Operating Mode: Accumulative
• Output Type: None
• Voltage - Supply: None Required (Battery Included)
• Termination Style: Screw Terminal
• Display Type: LCD Non-Backlit
• Number Of Digits/alpha: 7
• No. Of Digits / Alpha: 7
• Digit Height: 8.6mm
• Operating Temperature Range: -10°C To +55°C
• Svhc: No SVHC (15-Dec-2010)
• External Depth: 48.5mm
• External Length / Height: 24mm
• External Width: 48mm
• Operating Temperature Max: 55°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Input Type: -
• Count Rate: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: H7ET-N; H7ETN; H7ETNQ; Z3003

New H7E
Precautions
Before Use
Mounting Precautions for Flush Mounting
Although the operating section is watertight (conforming to NEMA4,
IP66), rubber packing is provided to avoid water leakage through
the gap between the Counter and panel cutout. Unless this rubber
packing is tightly squeezed on, water may permeate inside the
panel. Therefore, be sure to tighten the screws for fixing the Flush
Mounting Bracket. (Excessive tightening may also deform the rub-
ber packing.)
Screw for the Flush Mounting Bracket
This product has a built-in lithium battery. Do not short-circuit
the + and – terminals, charge, disassemble, deform, or expose
the battery to fire. The battery may explode (break), catch fire,
or cause liquid leakage.
Do not use any battery other than the specified one (Y92S-36).
Using another battery may cause liquid leakage or breakage,
resulting in malfunction or injury.
New H7E (Except for PCB-mounting Counter)
An insulation sheet has been inserted to maintain the quality of
the Totalizer in the event of a long period without use. Be sure to
remove this sheet before attempting to use the product.
Remove the insulation sheet and press the Reset Key on the
front panel of the Counter. (With the H7ER-N,-NV(-H),-NV1(-H),
models, “0” or “0.0” will be displayed after 1 s.)
Switch settings on the Counter must be performed before
mounting it to a control panel.
Do not use the Counter in the following locations:
Locations subject to severe changes in temperature.
Locations subject to condensation as the result of high humid-
ity.
!
!
WARNING
Caution
The wider side must
face the panel.
Panel
Insulation Sheet
Adapter
Reset Key
Reset Input and Count/Timer Input
If a voltage other than the rated one is applied, internal ele-
ments may be damaged.
Do not use the Counter in the following places:
The H7E operates using its built-in Battery. If the H7E is
connected to a device that has +V and OUT terminals that are
connected with a diode as shown in the circuit diagram, the
circuit indicated by the arrow 1 or 2 will be formed when the
device is turned OFF. As a result, the H7E may be reset or count
by one. It is recommended that such devices not be connected to
the H7E.
If an excessive voltage is applied to the count/timer input or reset
input terminals, the internal elements may be damaged.
Ensure that the following voltages are not exceeded:
Do not remove the outer case when voltage is being applied to
the power supply terminals or the input terminals.
The input for the H7Ej-NFV-j is a high-impedance circuit and
so influence from an induced voltage may result in malfunction.
Therefore, when the input signal wiring is longer than 10 m (line
capacitance of 120 pF/m, at room temperature), it is
recommended that a CR filter or a bleeder resistor is connected.
!
PNP/NPN universal voltage input model: 30 VDC
AC/DC voltage input model:
At count/timer input:
At reset input:
No-voltage input model: 3 VDC
Avoid wiring close to high-tension or large-current lines.
Locations subject to direct sunlight.
Locations subject to corrosive gases.
Locations subject to dust.
Caution
Devices
240 VAC (peak voltage: 338V)
240 VDC
3 VDC (no-voltage input)
Count/Timer
input or reset
input
H7Ej-N
New H7E
31