K3NC Datasheet, PDF (17/23 Pages) Omron Electronics LLC – Up/Down Counting Meter

Attach the mounting bracket on the left and right sides of the Count-
ing Meter as shown in the illustration above and gradually tighten
each screw evenly in turn by considering the balance of the tighten-
ing force until the ratchets start slipping without being further tight-
ened.
Mount the Counting Meter as horizontally as possible.
Waterproof Specifications
Products for which the degree of protection is not specified or models
with IP@0 degree of protection do not have waterproof specifications.
Noise Countermeasures
Separate the product as far as possible from machines that generate
high-frequency noise, such as high-frequency welding machines and
high-frequency sewing machines, and machines that generate
surges.
Attach surge absorbers or noise filters to noise-generating peripheral
devices (in particular, devices with inductance such as motors, trans-
formers, solenoids, and magnet coils).
Line filter
Unit Label (Provided)
No product is shipped with the unit label attached. Select a unit label
from the sheet provided and attach it to the Counting Meter.
K3NC
+
K3NC
−
Surge absorber
In order to prevent inductive noise, wire the lines connected to the
terminal block separately from power lines carrying high voltages or
large currents. Also, do not wire in parallel to, or in the same cable as
power lines. There are other methods that are effective for reducing
noise, such as running wires along ducts and using shield lines.
When using a noise filter for the power supply, check the voltage and
current and install as close to the Counting Meter as possible.
Inductive Noise Countermeasure for Input
Line
Analog Input
+
Signal
input
−
Two-conductor shield wire
Processor
Temperature Input
In order to prevent the influence of induction, separate the lead wire
joining the temperature sensor and the Counting Meter from power
and load lines.
Using the product near radios, television sets, or other wireless
devices may result in reception interference.
Up/Down Counting Meter K3NC C-147