3. Precautions ！
○When you store the product, install it in your line, remove it from the line or
adjust and test run it after installing it in the line, ensure that no dust or dirt
will stick to its IN and OUT ports.
○Never allow dust/dust, water or oil to enter the connecting ports. Note that
Models 3010 ,3020 and 3030 have a filter (20 m) built in the IN and OUT
connecting ports, but Models 3040 and 3050 do not have such a filter.
○This product has a temperature coefficient of the coil copper wire resistance
value.When the voltage is controlled, use the valve in an environment where the
ambient temperature will not change largely. Where the ambient temperature
is likely to change largely, current control is recommended. Coil copper wire
resistance value Rt = Ro℃(1 + 0.004 ｘt℃)
○Problems such as corrosion may develop depending on types of gases. When
your processing gas is other than inert gas, please contact us before using the
valve.
○Generally, proportional solenoid valves do not guarantee reproducibility. The
reason is that the valve open angle varies according to coil temperature
characteristic, ambient temperature, pressure and hysteresis unique to the
product. If the valve is to be used alone, be sure to monitor the condition with a
flow sensor or pressure sensor. Also when you need to constantly control the
flow rate or pressure or when you require reproducibility, it is necessary to
separately install a feedback PID control circuit to the flow sensor or pressure
sensor so that you can control the flow rate or pressure.
○Model 3000 Series does not guarantee the zero stop. Where the zero stop is
required, use a stop valve additionally.
○The working range may be different depending on types of gases. Please contact
us.
○If a load exists in the outlet side pressure, it needs to be specified when you place
an order. Please contact us.
○Please do not loose the coil cap which might lead to the valve adjustment trouble
and to the external leakage.
○In addition to the above, please be sure to observe the standard specifications.
If you have any questions or require additional information, please contact our
Sales Dept.
