The T7500 series is but one of several variants available from Rotork Instruments for converting electric control signals of C voltage or current to pneumatic output.

1. Keeping the World Flowing
I/P and E/P Transducers
T7500
Specifications
Supply Pressure
• 20-30 psig (1.5-2.0 bar)
Accuracy (ISA S51.1)
• 0.25% Full scale guaranteed
• 0.10% Full scale typical
Flow Rate (SCFM)
• T7501: 3.0 (5.1 m3
/hr) @ 30 psig (2 bar)
supply 5 psig (0.3 bar) output
• T7502: 7.0 (11.9 m3
/hr) @ 30 psig (2 bar)
supply 5 psig (0.3 bar) output
Supply Voltages
• Three wire voltage input: 7.2 to 30 VDC, 3 mA
Control Signals
• 4-20 mA 2 wire
• 0-5 VDC 3 wire
• 0-10 VDC 3 wire
Materials of Construction
• Body and Housing: Chromate treated Aluminum
• Orifice: Nickel plated Brass Sapphire
• Trim: Stainless steel, Brass
Zinc plated Steel
• Elastomers: Nitrile
• Finish: Epoxy powder coating
Precision Control Low Pressure
Electro-Pneumatic Transducers
Rotork Fairchild’s all new T7500 series I/P
Transducer delivers the highest setpoint accuracy
at low output pressure ranges of 0-2.5, 0-5, 0-7.5
and 0-15 psig. Output pressure ranges can be
ranged down to as low as 0-1 psig.
Using proprietary pneumatic and electronic design, the T7500
accepts supply pressures from 20-30 psig (1.5-2 bar) and mA
or VDC control signals to proportionally control the output
pressure in very low ranges. While most transducers struggle
to accurately and repeatedly hold a low pressure output
setpoint, the T7500 will provide 0.25% or better accuracy at
pressure ranges as low as 0-1 psig (0-69 mbar) output.
The T7500 is available in a variety of configurations for
electrical connection and can be mounted with its standard
supplied bracket or DIN rail mounted.
T7500 Main Features and Benefits
• Accepts 20-30 psig (1.5-2 bar) supply
• Controls output pressure ranges as low as:
0-1 psig (69 mbar)
• Accuracy to 0.25% guaranteed (0.10% typical)
for high performance use
• RFI/EMI protection eliminates susceptibility to
electromagnetic and radio interference
• Unaffected by vibration or mounting orientation
• Three styles of electrical connection interface
• Compact size for use in small spaces
Instrument Specialties, Inc. | ISI.Group | 407.324.7800
Instrument Specialties, Inc. | ISI.Group | 407.324.7800

2. PUB103-008-00
Issue 03/17
As part of a process of on-going product development, Rotork reserves the right to amend
and change specifications without prior notice. Published data may be subject to change.
For the very latest version release, visit our website at www.rotork.com
The name Rotork is a registered trademark. Rotork recognises all registered trademarks.
Published and produced in the UK by Rotork Controls Limited. POWJB0317
Rotork is a corporate
member of the Institute of
Asset Management
I/P and E/P Transducers
T7500
www.rotork.comwww.rotork.com
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on our website.
Precision Control Low Pressure
Electro-Pneumatic Transducers
Ordering Information
Catalog Number T 75 –
Electrical Connection:
1/2 NPT Conduit w/pigtail. . . . A
EN 175301-803. . . . . . . . . . . . . D
Terminal Block. . . . . . . . . . . . . . T.
Main Valve:
3 scfm valve. . . . . . . . . . . . . . . . . . . . . . . 01
7 scfm valve. . . . . . . . . . . . . . . . . . . . . . . 02
Input:
0-10 VDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
4-20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
0-5 VDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Output:
0-2.5 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01
0-5 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02
0-7.5 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 03
0-15 psig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04
0-0.17 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.
0-0.35 bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.
0-0.5 bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.
0-1 bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.
0-17 kPa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
0-35 kPa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
0-50 kPa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
0-100 kPa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Port Thread:
NPTF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N
BSPT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U
Dimensional Data
TA7500 Dimensions
TD7500 Dimensions
TT7500 Dimensions
3 23/32
94.5 3 5/32
80.2
1 33/64
38.7
1/2-14
NPT
1/4 NPT
Outlet Port (2)
(typical)
1/4 NPT
Inlet Port (2)
(typical)
Note: Unused IN and OUT
Ports are plugged (typical)
2 1/4
57.2
3 3/64
77.6
1
25.4
1/2
12.7
2 3/64
52.1
25/64
9.825/32
19.7
Use two
10-32
Screws for
Mounting
Vent
90°
Alternating
Positions
3 9/64
79.6
1/4 NPT
Outlet
1/4 NPT
Inlet
1 7/32
31.1
1 11/64
29.8
1 23/32
43.8
2 7/16
61.9
1 33/64
38.7
3 23/32
94.5
1/4 NPT
Outlet
Port (2)
(typical)
1/4 NPT
Inlet
Port (2)
(typical)
21/32
16.6
3 3/8
85.7
3 23/32
94.5 3 5/32
80.2
1 33/64
38.7
1/2-14
NPT
1/4 NPT
Outlet Port (2)
(typical)
1/4 NPT
Inlet Port (2)
(typical)
Note: Unused IN and OUT
Ports are plugged (typical)
2 1/4
57.2
3 3/64
77.6
1
25.4
1/2
12.7
2 3/64
52.1
25/64
9.825/32
19.7
Use two
10-32
Screws for
Mounting
Vent
90°
Alternating
Positions
3 9/64
79.6
1/4 NPT
Outlet
1/4 NPT
Inlet
1 7/32
31.1
1 11/64
29.8
1 23/32
43.8
2 7/16
61.9
1 33/64
38.7
3 23/32
94.5
1/4 NPT
Outlet
Port (2)
(typical)
1/4 NPT
Inlet
Port (2)
(typical)
21/32
16.6
3 3/8
85.7
1
25.4
1/2
12.7
2 3/64
52.1
25/64
9.8
Use two
10-32
Screws for
Mounting
1 33/64
38.7
3 23/32
94.5
1/4 NPT
Outlet
Port (2)
(typical)
1/4 NPT
Inlet
Port (2)
(typical)
21/32
16.6
3 3/8
85.7
All dimensions in inches [mm]
All dimensions in inches [mm]
All dimensions in inches [mm]
Fairchild Industrial Products
Company
3920 West Point Blvd
Winston-Salem, NC 27103
tel +1 (336) 659-3400
fax +1 (336) 659-9323
sales@fairchildproducts.com
www.fairchildproducts.com
Instrument Specialties, Inc. | ISI.Group | 407.324.7800
Instrument Specialties, Inc. | ISI.Group | 407.324.7800