Omega Products IP210-X120 User Manual
CURRENT TO PRESSURE
(I/P) CONVERTER
IP210 Series
Control Air
3-15 to 3-120 psi
$
535
All Models
⻬ Loop Powered
⻬ Ideal for Pneumatic
Control Systems
⻬ IP65 Sealed Case
⻬ Zero and Span
Adjustments for Field
Calibration
⻬ Rugged Zinc-Cast
Housing
A “current to pressure” converter
(I/P) converts an analog signal
(4 to 20 mA) to a proportional linear
pneumatic output (3 to 15 psig). Its
purpose is to translate the analog
output from a control system into
a precise, repeatable pressure
value to control pneumatic
actuators/operators, pneumatic
valves, dampers, vanes, etc.
The IP210 is a loop-powered
instrument, which eliminates the
need for an external power supply
(except for IP210-X120).
Principle of Operation
OMEGA’s IP210 converts an analog
signal (4 to 20 mA) to a proportional
linear pneumatic output (3 to 15 psig).
Its uncomplicated design and proven
electromagnetic force balance
deliver consistently high performance.
IP210-X15, $535,
shown actual size.
The IP210 provides a reliable,
repeatable, accurate means of
converting an electrical signal into
pneumatic pressure. Its force
balance principle is a coil suspended
in a magnetic field on a flexible
mount. At the lower end of the coil is
a flapper valve that operates against
a precision ground nozzle to create
a backpressure on the servo
diaphragm of a booster relay.
The input current flows in the coil
and produces a force between the
coil and the flapper valve, which
controls the servo pressure and the
output pressure.
Zero adjustment of the unit is made
by turning a screw that regulates the
distance between the flapper valve
and the air nozzle. Span adjustment
See Section Y for a
Selection of Scientific,
Technical, and Reference
Books Available from
omega.com
is made by varying a potentiometer,
which shunts input current past the
coil. An integral volume flow booster
provides adequate flow capacity,
resulting in fast response time and
accurate control.
L-9
LOOP-POWERED ELECTROPNEUMATIC CONTROL
FRONT VIEW
REMOVABLE ORIFICE
SUPPLY IN
OUTPUT
2 HOLES 06.5 mm
PLUG ORIENTS 4 WAYS
RANGE OR SPAN
(TYPICAL)
8
(0.31)
=
=
=
=
=
=
RANGE ZERO
54
(2.1)
73 (2.9)
54 (2.1)
61.5 (2.4)
120
(4.7)
51
(2)
67 (2.6)
OUTLET PRESSURE (bar)
FLOW (N/MIN)
RELIEF FLOW CHARACTERISTICS
(SUPPLY PRESSURE 7 bar)
FORWARD FLOW CHARACTERISTICS
(SUPPLY PRESSURE 7 bar)
FLOW (N/MIN)
OUTLET PRESSURE (bar)
5
4
3
2
1
0
0 100 200 300 400 500 600
8
6
4
2
0
-700 -600 -500 -400 -300 -200 -100 0
OUTLET
PRESSURE
MAX
MIN
MIN
MAX
INPUT SIGNAL
SPAN/ZERO ADJUSTMENTS
R
20% OF
OUTPUT
RANGE
100 200 300 400 500 600
8
-300 -200 -100 0
Dimensions: mm (in)
SPECIFICATIONS
Accuracy: 0.5% FS
Supply Sensitivity: 0.025% span
per % supply pressure change
Zero Adjustment: 5% FS
Span Adjustment: 20% FS
Operating Temp:
-20 to 70°C (-5 to 160°F)
Compensated Temp:
-10 to 60°C (15 to 140°F)
Thermal Effects:
<0.1%/°C over operating range
Input Resistance: <300 Ω
To Order (Specify Model Number)
MODEL NO. PRICE INPUT RANGE OUTPUT RANGE
IP210-X15 $535 4 to 20 mA 3 to 15 psig
IP210-X30 535 4 to 20 mA 3 to 30 psig
IP210-X60 535 4 to 20 mA 3 to 60 psig
IP210-X120 535 4 to 20 mA* 3 to 120 psig
3-wire system. External 24 Vdc power supply required.
*
Comes complete with operator’s manual.
Ordering Examples: IP210-X15, I/P converter, takes a 4 to 20 mA control signal and converts it into 3 to 15 psig control air, $535.
IP210-X60, I/P converter, takes a 4 to 20 mA control signal and converts it into 3 to 60 psig control air, $535.
Recommended Reference Book: Valve Handbook, GE-2317, $135. Visit omega.com/bobi for Additional Books
Media: Oil-free, clean, dry air filtered
to 25 µm
Recommended Supply Pressure:
25 to 30 psig (filtered air)
Max Supply Pressure: 80 psig
(for IP210-X120: 135 psi)
Min Supply Pressure: 10 psi above
maximum output pressure
Air Consumption (Leakage): 0.03 scfm
Flow Rate: 10
scfm
≤60 psi;
0.06 >60 psi
Response Time: <30 psi
[less than 0.5 s (10 to 90% step);
Failure Mode: Upon electrical failure,
the signal pressure falls to bleed
pressure
Pressure Port:
1
⁄4 FNPT
Electrical Connection: DIN 43650
with screw terminals included
Housing: IP65 rated, epoxy-painted
zinc die castings
Construction: Nitrile diaphragms,
stainless steel/nylon flapper, nozzle and
supply valve, integral surface mounting
bracket included
Weight: 1.7 kg (3 lb)
VALVES AND REGULATORS
≥30 psi: 2 s]
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