19) Use the dedicated CT and dedicated CT cable specified by OMRON.
Model KM20-CTF-5A
Model KM20-CTF-50A
Model KM20-CTF-100A
Split type
Model KM20-CTF-200A
Model KM20-CTF-400A
Model KM20-CTF-600A
Through
type
Model KM20-CTB-5A/50A
Dedicated CT cable: Model KM20-CTF-CB3 (3 m)
20) It is not available for measuring inverter secondary side measurements.
21) Do not block the air ventilation holes of this product and the area surrounding them,
in order to allow heat to be emitted.
22) Check the terminal number and carry out wiring correctly. Connect nothing to the
terminals not used.
23) This product is a "Class A" (industrial environment product). Using this product in a
residential setting environment may cause electronic jamming. In that case,
appropriate measures for electronic jamming must be taken.
24) Use the dedicated CT in a low voltage circuit of 600 V or less.
Requests for Installation
z
To use this product for a long time
Use this product within the following temperature and humidity ranges.
Temperature: -10 to +55
°
C (without freezing and condensation)
Humidity: 25 to 85%RH
Not the temperature around the board but the temperature around this product must be within
55
°
C.
This product has a product service life that is determined by the service life of electronic parts
used inside. The service life of parts depends on the ambient temperature. As the ambient
temperature is higher, the service life is shorter, and as the temperature is lower, the life is
longer. Therefore, lowering the internal temperature of the product can lengthen its life.
Installing more than one Model KM1 close to each other or by arranging them in the up-down
direction requires the consideration of forced cooling by, e.g., sending air to the products
through a fan.
z
To achieve resistance against peripheral noise
To prevent inductive noise, isolate the wiring in the terminal block of the main body from the
power line of high voltage or large current. In addition, avoid wiring in parallel to or shared
with power lines. Use of a different conduit, a duct, or a shield line is an effective method of
wiring.
Attach a surge absorber or a noise filter to the equipment (equipment having inductance
components in particular, e.g., motor transformer, solenoid, and magnet coil) generating
noise around the product.
When installing this product, keep it away as far as possible from the equipment (high
frequency welder, high frequency machine, etc.) generating strong high-frequency noise or
surge.
VII
