Technical description 1.Summary The dummy load is used to dissipate
1KW, 3KW, 5KW and 10KW (depending on the specific model) RF power
from DC to 1000Mhz. Its characteristic is 50 Ω impedance, and the
standing wave ratio (VSWR) is not more than 1.10:1. Therefore, due
to its low reflection coefficient, it is very useful for the
maintenance of radio and television transmitters, the discharge of
load on the filter, and the termination on the power synthesizer.
The outlet connector configured for this series of products can
range from N-type quick connector to 3-1/8 ″ connector 2.When the
load is energized, unscrew the vent hole on the breather valve. In
order to eliminate the air heated and expanded in the load chamber
due to the rise of load temperature. If the heated air is not
removed in time, the pressure in the cavity will increase, the
pressure at the sealing gasket will be too high, and the oil
leakage at the load outlet will be caused. Enough space should be
left around the load (at least 12 inches around and at the top) to
facilitate air circulation and heat dissipation of the load 3.Fan
assembly: When leaving the factory, the wiring of the fan assembly
has been installed, and no special wiring is required. The fan must
be operated manually, unless the component is automatically
connected in the factory. When the fan is not started, the power
added to the dummy load cannot be higher than 1250W (suitable for
5KW and 10KW loads with air cooling). 4.Transmitter interlock:
normally closed thermal switch (CKSD301 250V 10A 45 ºC) is
connected to the transmitter interlock. If the cooling temperature
of the dummy load is too high, which will cause damage to the dummy
load, this switch will turn on and off the transmitter. The 1-2
pins of the three-core socket are normally closed contacts.
5.Maintenance: almost no maintenance. Keep the machine clean and
dustproof. Field replacement of resistors is not recommended.
However, if necessary, please tighten the breather valve and place
the machine vertically with the RF connector facing up. Remove the
8 socket head screws that fix the RF module. Carefully and quickly
lift the assembly to drain the excess oil back to the radiator.
Loosen the clip at the end of the cover and remove 6 taper head
screws. Carefully pull the cover off the resistor. To install a new
resistor, follow the reverse steps, but ensure that the resistor
fits perfectly with the fixture safely. Please check the O-ring
between the radiator and the RF module. If it is broken or damaged,
it must be replaced immediately. After confirming that the module
is located in the radiator, return to the horizontal position and
detect whether there is coolant leakage. 7.Cooling: In the factory,
the dummy load is injected with special non-toxic and
non-conductive coolant at normal temperature and reaches the normal
plane. Observe whether the coolant leaks. A small amount of leakage
will not affect the work, but a large amount of leakage will have
adverse effects. If not, do not replace the coolant, please use the
coolant provided by the original factory. Frequency
rangeDC-1GHzstanding-wave ratioLess than or equal to
1.054impedance50ΩInput feeder size1-5/8,3-1/8/* January 22, 2024
19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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