USER MANUAL
Power
Frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
30 A/m
50 Hz or 60 Hz
30 A/m
50 Hz or 60 Hz
Power frequency magnetic fields should be at levels
characteristic of a typical location in a Typical
commercial or hospital environment.
Note 1 At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
a. Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and
land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment, due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in the location in which
the CTC-7 is used exceeds the applicable RF compliance level above, the CTC-7 should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating the CTC-7.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
U
T
is the a.c. mains voltage prior to application of the test level.
12-2.
Guidance and Manufacturer's Declaration – Electromagnetic Emissions
The CTC-7 is intended for use in the electromagnetic environment specified below.
The customer or the user of the CTC-7- should assure that it is used in such an environment.
Emission test
Compliance
Electromagnetic environment-guidance
RF emissions
CISPR 11
Group 1
The product does not use RF energy.
RF emissions
CISPR 11
Class A
The CTC-7 is suitable for use in all establishments other than domestic
and those directly connected to the public low-voltage power supply
network that supplies buildings used for domestic purposes.
Harmonic
emissions
IEC 61000-3-2
Applicable
Voltage
fluctuations/
flicker emissions
IEC 61000-3-3
Applicable
43
