10
ULVAC CRYOGENICS INCORPORATED
2.3 Inside MP-300K front door (Figure 2-3)
LN
2
dewar
:Container that stores 100 litters of LN
2
.
Cold head
:The cold head works in conjunction with the
compressor to generate ultra-low temperature.
The cold head needs maintenance services
according to the time in operation.
N
2
Pressure regulator (*1):
:Adjusts and displays the pressure of nitrogen gas
supplied. Adjust the pressure to 0.2MPa when
using the equipment.
N
2
Flow meter (*1)
:Displays and adjusts the flow rate of nitrogen gas.
Adjust the flow rate at the center of the ball inside
to 20 NL/min.
Pressure meter
:Displays the pressure inside the dewar.
Temperature meter
:Displays the temperature inside the dewar.
(Temperature meter is not equipped depending
on the condition of installation.)
(*1) Nitrogen gas pressure regulator, flow meter, and flow control valve are
mounted only on the models with nitrogen gas supply (without nitrogen gas
generator).
2.4 MP-300K Electrical circuit (Figure 2-4)
Circuit breaker
:Circuit breaker to protect the control circuit of
MP-300K. This trips when an electric leakage or
short circuit occurs.
Fuse
:AC protective fuse (F-1,2 : 2A) and DC protective
fuse (F-3 : 2A).
Sequencer
:Controller of the system. It receives signals
from the sensors and activates functions as
needed. When you contact us in case of an error,
provide the state of sequencer input-output light
such as illuminating, blinking or off.
Level sensor converter
:Electric component to detect the LN
2
level.
Never strip the protective sticker or touch
adjusting trimmer since it is precisely adjusted.
