NT PROPORTIONAL CONTROL VALVE, MODEL 6300
8
User Guide | Entegris, Inc.
Mechanical
Installation
Prepare and Connect Fluid Lines
The standard NT proportional control
valve must be used with the proper
tubing size and fittings.
CAUTION: Do not tighten the nuts
on the fitting connection without
tubing in place. Tightening the
nuts without the tubing installed
may damage the unit’s
connections.
Flaretek Tube Fitting:
Flare each tube end prior to instal-
lation onto the valve fitting. For
detailed tube flaring instructions,
see “Flaretek tube fitting flare
and assembly procedures” at
www.entegrisfluidhandling.com
Super 300 Type Pillar Tube Fitting:
Prepare tube end prior to instal-
lation onto the valve fitting.
For detailed instructions,
see assembly procedures at
www.nipponpillar.com
CAUTION: Over-tightening of
the nuts with tubing in place will
result in damage to the fitting.
POWER SUPPLY REQUIREMENTS
—
The power supply range for the
proportional control valve is 24 VDC
±10%. The power supply must be
regulated and provide minimum
1.2 ampere (nominal) continuous
service for each proportional control
valve installed. The power supply
requirements must be met at the wire
connections or connector of the
proportional control valve, not only
at the power supply itself.
The power supply to the unit must
provide clean power and must be
used only to power similar measure-
ment-type devices. The power supply
must not be used to power other
inductive loads, such as motors,
relays, or solenoids. These devices
may produce electrical transients
that may affect unit performance.
An induced power spike, creating
an interruption in power greater
than 10 milliseconds in duration,
may cause the unit to reset. Loss of
power will not cause the loss of any
system parameters. Loss of power
may allow the valve to open due to
applied fluid pressure.
In addition to providing clean power,
the instrumentation signals and
power return lines must not be run
within the same conduit or cable
along with heavy current demands
from motors, charging capacitors
or other inductive loads. This may
cause a voltage change within the
instrumentation signal line, causing
erroneous valve operation.
Input Impedance of the
Voltage Setpoint
The input impedance of the voltage
setpoint is 37 kOhm.
Voltage Drop at the 4 – 20 mA
Setpoint Input
The 4 – 20 mA input will drop
4.6 V at 20 mA. Input impedance
is 230 ohms.