H7EC-N Omron, H7EC-N Datasheet - Page 12

• Manufacturer Part Number: H7EC-N
• Description: TOTALISER, 7DIGIT
• Manufacturer: Omron

Specifications of H7EC-N

• No. Of Digits / Alpha: 8
• Digit Height: 8.6mm
• Operating Temperature Range: -10°C To +55°C
• Svhc: No SVHC (15-Dec-2010)
• Count Speed Max: 1kHz
• External Depth: 48.5mm
• External Length / Height: 24mm
• External Width: 48mm
• Display Scan Rate Max: 20Hz
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

New H7E
Inputs
Do not route the wiring of the count, timer, or reset inputs in the vicin-
ity of, or in parallel to the wiring of high-voltage or inductive load cir-
cuits (such as motors and relays). Also, keep the wiring as short as
possible.
Be careful not to apply voltages exceeding the following values to
the count, timer, or reset terminals, otherwise the internal circuit
may be damaged.
No-voltage input: 3 VDC
General Information
The terminals are solder-plated. Finish soldering the terminals with-
in 5 seconds, at a solder iron tip temperature of 250 C
Since the Counter is not flux-tight, do not use flux when soldering.
Avoid automatic and dip soldering. Manually solder the Counter
onto a PC board, and avoid cleaning as much as possible.
When mounting the Counter on a PC board with components which
consume higher current than the H7Ej-NjP, observe the follow-
ing precautions.
When using the Counter in an environment where the Counter is
subject to frequent occurrences of vibration or shock, or when
mounting the Counter facing downwards or sideways, it is sug-
gested that the Counter be directly soldered to a PCB instead of us-
ing sockets.
34
1. Minimize the wiring (less than 50 mm) from the H7Ej-NjP
2. Avoid placing the H7Ej-NjP power, timer, counter, or reset
PC Board (Bad Example)
H7Ej-NjP
Power supply
to the power supply section.
input circuit in parallel with circuits that consume large
currents, particularly on the positive side.
Placed far away from
the power supply.
Wired in parallel
with large-current-
carrying compo-
nents.
Large-current-
consuming
components
H7Ej-NjP
Bypass
capacitor
PC Board (Good Example)
Power supply
Large-current-
consuming
components
H7Ej-NjP
Bypass
capacitor
10 .
To Conform to EN/IEC Standards
Input terminals have no insulation from power supply terminals. The
power supply terminals must be supplied from a SELV source in ac-
cordance with IEC61010-1 Annex H. SELV (separated extra-low
voltage) source is a power supply having double or reinforced in-
sulation between the primary and the secondary circuit and having
output voltage of 30 V rms max. and 42.4 V peak max. or 60 VDC
max.
Cleaning
To prevent damage, the exterior of the Counter must not be exposed
to organic solvents (3.g. paint thinner or benzine), strong alkalis, or
strong acids.
Others
No user-serviceable parts.
Return to OMRON for all repairs.
New H7E