H7EC-NV Omron, H7EC-NV Datasheet - Page 11
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H7EC-NV
Manufacturer Part Number
H7EC-NV
Description
COUNT TOTALIZER DC IN 30HZ/1KHZ
Manufacturer
Omron
Series
H7ECr
Specifications of H7EC-NV
Count Rate
30Hz or 1kHz Selectable
Number Of Digits/alpha
8
Input Type
Transistor
Voltage - Supply
None Required (Battery Included)
Display Type
LCD Non-Backlit
No. Of Digits / Alpha
8
Digit Height
8.6mm
Power Consumption
300mW
Operating Temperature Range
-10°C To +55°C
Svhc
No SVHC (15-Dec-2010)
Count Speed Max
1kHz
External Depth
48.5mm
Display Scan Rate Max
1kHz
Display Scan Rate Min
30Hz
Equipment Type
Self-Powered Count Totalizer
Dimensions
48 mm L x 24 mm W x 48.5 mm H
Mounting Style
Panel
Primary Voltage Rating
4.5 VDC to 30 VDC
Termination Style
Screw
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
H7EC-NV
H7ECNV
Z3008
H7ECNV
Z3008
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
H7EC-NV
Manufacturer:
OMRON
Quantity:
100
Company:
Part Number:
H7EC-NV
Manufacturer:
Omron Electronics Inc-IA Div
Quantity:
135
Company:
Part Number:
H7EC-NV-BH
Manufacturer:
Omron Electronics Inc-IA Div
Quantity:
135
J INPUT AND POWER SUPPLY
Do not apply voltage on the Counter if the Counter is a model
that operates with no-voltage input, to avoid damaging the
internal circuit of the Counter.
Do not connect any single input signal in parallel to Counter
models operating with no-voltage input and those operating with
voltage input, otherwise the Counters may malfunction.
When connecting a sensor to the Counter that operates with
no-voltage input, make sure that the sensor has open collector
output.
The operation of the Counter may be affected if the line voltage
of the power supply exceeds 500 pF (about 10 m, with parallel
wires of 2 x 2 mm). Keep all wires as short as possible. When
using shielded wire, stray capacitance may occur.
When connecting an open collector input from a transistor to the
Counter that operates with no-voltage input, make sure that the
leakage current of the transistor is 5 µA maximum.
When connecting count input from an SSR to the Counter that
operates with AC/DC voltage input, use OMRON’s G3TA-IA or
G3TA-ID SSR. Otherwise, make sure that the leakage current of
the SSR is 0.1 mA maximum or connect a bleeder resistor in
parallel to the input circuit of the Counter.
J BACKLIGHT POWER SUPPLY
To reduce variation in the brightness of the backlight when using
more than one H7E with a backlight, use the same power supply
for all the backlights.
When connecting the DC power supply for the backlights, be
sure to connect the polarities correctly.
H7EC
Sensor
or
or
*Bleeder resistor
The voltage between terminals 1 and 2 must be
1.5 V maximum when the SSR is OFF.
Leakage current:
0.1 mA max.
or
11
J BATTERY REPLACEMENT
Remove the wiring when replacing the Battery. Do not come in
contact with any item to which high voltage is being applied.
Doing so may result in electric shock.
Before changing the Battery, be sure that you are not carrying
any static electric charge.
Procedure for replacing the Battery (refer to the diagrams below):
When the internal Battery nears expiration, the display may
flicker.
J EN/IEC STANDARDS
The counter input, reset input, and backlight power supply
terminals of the no-voltage input or PNP/NPN universal DC
voltage input models (H7Ej-N,-N1, H7Ej-NV(-H),-NV1(-H)) are
not isolated.
A SELV power supply conforming to Appendix H of IEC61010-1
should be used for the counter input, reset input and backlight
power supply terminals. A SELV power supply is a power supply
for which the input and output have double or reinforced
insulation, and for which the output voltage is 30 Vrems with 42.4
V peak or 60 VDC max. (Only the H7Ej-NVj-H has a
backlight.)
The terminals for counter input and reset input for AC/DC
multi-voltage input models have basic insulation.
Connect the reset input terminals to a device that does not have
exposed current-carrying parts and has basic insulation for
240 VAC.
1. Using the tool, pry open the lift-tab on the case. (1)
2. Pull the body out of its outer case. (2)
3. Lift the Battery up by the edge and remove it. (3)
4. Wipe the back of the new Battery before inserting it.
5. Ensure that the + and -- terminals are correctly oriented.
6. After replacing the Battery, re-insert the body into its case. (4)
7. Press the Reset Key before use (not necessary for
(5)
When removing the Battery, do not come in contact with the
display area or any internal parts.
Check that the case is securely held in by the lift-tab.
H7ER-N,-NV,-NV1). (5)
(1)
(1)
(4)
Tool
(3)
(2)
H7EC