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Fairchild Compact E/P, I/P Low Pressure Transducer User manual

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ROTORK FAIRCHILD MODEL T7500
LOW PRESSURE TRANSDUCER
Installation, Operation and Maintenance Instructions
Introduction
The T7500 series low pressure transducer
is a precision low pressure electro-
pneumatic transducer designed to satisfy
demanding electronic pressure control
applications in ranges from 0-1 to 0-15
psig. The transducer’s vibration resistant
pilot stage employs piezo-ceramic
actuator flapper nozzle technology to
control the sensitive integral pneumatic
volume booster. The volume booster’s
highly sensitive control diaphragm and
main valve accurately control the flow
of air to the downstream system in
response to the pressure sensor provides
unparalleled accuracy at very low
pressures in response to the electronic
control input signals. All this in a compact
package size.
Features
The T7500 Series Transducers provide maximum
versatility for precision low pressure applications.
•
Field Reversible Feature provides output that
is inversely proportional to input signal.
•
RFI/EMI Protection eliminates susceptibility to
electromagnetic and radio interference.
•
Internal Electronic Feedback and solid state
controlled Piezoelectric Actuator provide
precise control of output pressure regardless
of vibration or position.
•
Damping Adjustment for optimum tuning
response.
•
Unaffected by vibration or mounting orientation.
•
Compact size for use in restricted spaces.
•
Various mounting configurations allow
installation flexibility for most applications.
•
NEMA 4X, Type 4 Enclosure and IP65 rated
for indoor and outdoor installations.
•
All T7500 products are ROHS compliant.
Ordering Information
800-334-8422
www.fairchildproducts.com
1
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
 
 
2
ROTORK FAIRCHILD MODEL T7500
LOW PRESSURE TRANSDUCER
Installation, Operation and Maintenance Instructions
800-334-8422
www.fairchildproducts.com
3 23/32"
94.5
3 5/32"
80.2
1 33/64"
38.7
1/2-14
NPTF
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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"
9.8
25/32"
19.7
Use two
10-32
Screws for
Mounting
Vent
90°
Alternating
Positions
3 9/64"
79.6
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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
NPTF
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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"
9.8
25/32"
19.7
Use two
10-32
Screws for
Mounting
Vent
90°
Alternating
Positions
3 9/64"
79.6
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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
NPTF
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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"
9.8
25/32"
19.7
Use two
10-32
Screws for
Mounting
Vent
90°
Alternating
Positions
3 9/64"
79.6
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
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
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
1/4-18 NPTF or
1/4-19 BSPT
Inlet & Outlet
21/32"
16.6
3 3/8"
85.7
Model: TA7500
Model: TT7500 Model: TD7500
Figure 1
Mounting Kits
INDUSTRIAL PRODUCTS COMPANY
FAIRCHILD
®
3920 WEST POINT BLVD.
WINSTON-SALEM, NC
0.30
7.5
2.43
61.7
0.75
19.1
4.86
123.4
4.13
104.9
0.28
7.1
Use two
1/4"-20
Screws for
Mounting
(not included
in mounting kit)
1.50
38.1
0.38
9.7
2.25
57.2
0.63
15.9
1.00
25.4
2.88
73.2
1.00
25.4
0.75
19.1
0.26
6.6
0.82
20.9
0.59
14.9
0.61
15.6
2.05
52.1
2.05
52.1
2.05
52.1
DIN
EN-50035
DIN
EN-50045
DIN
EN-50022
0.62
15.8
2.81
71.4
0.50
12.7
2.05
52.1
REVISIONS
REV.
DESCRIPTION
EC
DFT
DATE
APPR
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
FAIRCHILD INDUSTRIAL PRODUCTS CO.
ANY REPRODUCTION IN PART OR AS A
WHOLE WITHOUT THE WRITTEN PERMISSION
OF FAIRCHILD INDUSTRIAL PRODUCTS CO.
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
NEXT ASSY
USED ON
APPLICATION
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
1/64
ANGULAR: MACH
0.5
BEND
0.5
TWO PLACE DECIMAL
0.010
THREE PLACE DECIMAL
0.005
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
COMMENTS:
DATE
NAME
TITLE:
SIZE
B
DWG. NO.
REV
SHEET 1 OF 1
WEIGHT 0
SCALE: 1:2
UNLESS OTHERWISE SPECIFIED:
T7500 WITH MNTG BRKTS
-
. dev
63
1/1/2014
_
_
_
1/1/2014
1/1/2014
-
SW MASTER MODEL
CAGE Code 07282
PRODUCT LINE CODE:
_
-
-
-
-
-
-
-
-
-
-
-
-
DO NOT SCALE DRAWING
Mounting Kit: 16799-1
INDUSTRIAL PRODUCTS COMPANY
FAIRCHILD
®
3920 WEST POINT BLVD.
WINSTON-SALEM, NC
0.30
7.5
2.43
61.7
0.75
19.1
4.86
123.4
4.13
104.9
0.28
7.1
Use two
1/4"-20
Screws for
Mounting
(not included
in mounting kit)
1.50
38.1
0.38
9.7
2.25
57.2
0.63
15.9
1.00
25.4
2.88
73.2
1.00
25.4
0.75
19.1
0.26
6.6
0.82
20.9
0.59
14.9
0.61
15.6
2.05
52.1
2.05
52.1
2.05
52.1
DIN
EN-50035
DIN
EN-50045
DIN
EN-50022
0.62
15.8
2.81
71.4
0.50
12.7
2.05
52.1
REVISIONS
REV.
DESCRIPTION
EC
DFT
DATE
APPR
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
FAIRCHILD INDUSTRIAL PRODUCTS CO.
ANY REPRODUCTION IN PART OR AS A
WHOLE WITHOUT THE WRITTEN PERMISSION
OF FAIRCHILD INDUSTRIAL PRODUCTS CO.
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
NEXT ASSY
USED ON
APPLICATION
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
1/64
ANGULAR: MACH
0.5
BEND
0.5
TWO PLACE DECIMAL
0.010
THREE PLACE DECIMAL
0.005
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
COMMENTS:
DATE
NAME
TITLE:
SIZE
B
DWG. NO.
REV
SHEET 1 OF 1
WEIGHT 0
SCALE: 1:2
UNLESS OTHERWISE SPECIFIED:
T7500 WITH MNTG BRKTS
-
. dev
63
1/1/2014
_
_
_
1/1/2014
1/1/2014
-
SW MASTER MODEL
CAGE Code 07282
PRODUCT LINE CODE:
_
-
-
-
-
-
-
-
-
-
-
-
-
DO NOT SCALE DRAWING
Mounting Kit: 16893-1
Figure 2
Figure 3
INDUSTRIAL PRODUCTS COMPANY
FAIRCHILD
®
3920 WEST POINT BLVD.
WINSTON-SALEM, NC
0.30
7.5
2.43
61.7
0.75
19.1
4.86
123.4
4.13
104.9
0.28
7.1
Use two
1/4"-20
Screws for
Mounting
(not included
in mounting kit)
1.50
38.1
0.38
9.7
2.25
57.2
0.63
15.9
1.00
25.4
2.88
73.2
1.00
25.4
0.75
19.1
0.26
6.6
0.82
20.9
0.59
14.9
0.61
15.6
2.05
52.1
2.05
52.1
2.05
52.1
DIN
EN-50035
DIN
EN-50045
DIN
EN-50022
0.62
15.8
2.81
71.4
0.50
12.7
2.05
52.1
REVISIONS
REV.
DESCRIPTION
EC
DFT
DATE
APPR
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
FAIRCHILD INDUSTRIAL PRODUCTS CO.
ANY REPRODUCTION IN PART OR AS A
WHOLE WITHOUT THE WRITTEN PERMISSION
OF FAIRCHILD INDUSTRIAL PRODUCTS CO.
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
NEXT ASSY
USED ON
APPLICATION
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
1/64
ANGULAR: MACH
0.5
BEND
0.5
TWO PLACE DECIMAL
0.010
THREE PLACE DECIMAL
0.005
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
COMMENTS:
DATE
NAME
TITLE:
SIZE
B
DWG. NO.
REV
SHEET 1 OF 1
WEIGHT 0
SCALE: 1:2
UNLESS OTHERWISE SPECIFIED:
T7500 WITH MNTG BRKTS
-
. dev
63
1/1/2014
_
_
_
1/1/2014
1/1/2014
-
SW MASTER MODEL
CAGE Code 07282
PRODUCT LINE CODE:
_
-
-
-
-
-
-
-
-
-
-
-
-
DO NOT SCALE DRAWING
Mounting Kit: 19254-1
Figure 4
3
ROTORK FAIRCHILD MODEL T7500
LOW PRESSURE TRANSDUCER
Installation, Operation and Maintenance Instructions
Specifications
Supply Pressure
20-30 psig, [1.4-2.0 Bar]
Accuracy (ISA S51.1)
0.25% Full Scale Guaranteed
0.10% Full Scale Typical
Flow Rate (SCFM)
T7501 T7502
3 (5 m
3
/hr) @ 7 (11.7 m
3
/hr) @
30 psig, [2 Bar] Supply 30 psig, [2 Bar] Supply
5 psig, [350 mBar] Output 15 psig, [1 Bar] Output
Supply Voltages
Three Wire Voltage Input 7.2-30 VDC, less than 3 mA
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
800-334-8422
www.fairchildproducts.com
Green Lead
( ) Ground
Red Lead
(+) Supply
Black Lead
(-) Supply/Signal
Orange Lead
(+) Signal
Model TA7500
Model TT7500
1
2
3
4
+
-
Green Lead
( ) Ground
Red Lead
(+) Positive
Black Lead
(-) Negative
Model TD7500
DIN Connector
(Voltage Unit)
DIN Connector
(Current Unit)
++
_
V VS
++
_
V V
S
Terminal Block
(Voltage Unit)
Terminal Block
(Current Unit)
+
+
+
_
_
V
V
S
U
P
P
L
Y
SIGNAL
S
TERMINAL
CONNECTION
1
2
3
4
(+) Signal
( ) Supply/Signal
(+) Supply
( ) Ground
TERMINAL
CONNECTION
1
2
3
4
Positive (+)
Negative ( )
Not Used
Ground ( )
Conduit
Connector
(Current Unit)
Conduit
Connector
(Voltage Unit)
+
_
V
4-20 mA
loop
S
Electrical Connections
Make connections to the Terminl Block, Conduit Connector or the DIN Connector as shown below.
Figure 5
4
Zero & Span Adjustment
Forward Acting Mode
1. Set Fwd/Rev Mode jumpers to the Forward
position (Factory default)
2. Apply the minimum input signal and adjust the
ZERO Adjustment for the desired minimum output
pressure.
3. Apply the maximum input signal and adjust the
Span Adjustment for the desired maximum output
pressure.
4. Repeat steps 3 and 4 until the desired output
range is obtained.
Reverse Acting Mode
NOTE: Do NOT reverse the input leads.
5. Set FWD/REV Mode jumpers to the Reverse
position (see Figure 7).
6. Apply the maximum input signal and adjust the
ZERO Adjustment for the desired minimum output
pressure.
7. Apply the minimum input signal and adjust the
SPAN Adjustment for the desired maximum output
pressure.
8. Repeat steps 6 and 7 until the desired output
range is obtained.
Damping Adjustment
(See Figure 7)
• The damping adjustment lets you tune the
transducer for optimum response and stability in a
particular application.
• For best performance, start with the Damping
Adjustment at maximum adjustment, fully
clockwise. Gradually turn counterclockwise until
output pressure begins oscillation. Turn clockwise
until oscillation is minimized.
INSTALLATION
You can mount the Model T7500 on a at surface using
two 10-32 Screws. For more information, see Figure 1.
The Model T7500 ships from the factory with Mounting
Kit 16799-1 for Panel or Wall Mounting and Mounting
Bracket Kit 16893-1 for Din Rail Mounting. For more
information, see Figure 2 and Figure 3.
An optional mounting kit, 19254-1, is available to install
the unit on a 2" pipe. For more information, see Figure 4.
Part of the TD7500 enclosure is constructed of Non-
Metallic material. To prevent the risk of electrostatic
sparking, the enclosure shall only be cleaned with
a damp cloth. For more information, see Figure 6.
NOTE:
Clean all pipelines to remove dirt and scale before
installation.
Apply a minimum amount of pipe compound to the male
threads of the air line only. Do not use Teon tape as
a sealant. Start with the third thread back and work
away from the end of the tting to avoid contaminating
the transducer.
The inlet and outlet ports are labeled on the ends of the
transducer. Tighten all connections securely. Avoid
undersized ttings that will limit the ow through the
transducer. For more information, see Figure 1.
NOTE:
Instrument quality air, per ISA Standards S7.3-1981,
is required. Use a lter to remove dirt and liquid
in the air line ahead of the transducer. If an air line
lubricator is used, it MUST be located downstream
to avoid interference with transducer performance.
The user is responsible for ensuring that the
environment in which the unit is installed and the
operating gas are compatible with the materials in
the transducer.
PNEUMATIC CONNECTIONS
CALIBRATIONS / ADJUSTMENTS
The following adjustments are provided:
• Full Range Operation
• Lo/Hi Span
• Forward /Reverse Mode
• Calibration - Zero and Span
• Damping Adjustments
Table 1
Model Pressure
Range
Basic Pressure
Range
Span Jumper
Position
0-2.5 PSIG 0-5 PSIG Lo
0-5 PSIG 0-5 PSIG Hi
0-7.5 PSIG 0-15 PSIG Lo
0-15 PSIG 0-15 PSIG Hi
FULL-RANGE OPERATION
800-334-8422
www.fairchildproducts.com
Lo/Hi Span Adjustment
The T7500 transducers feature a Hi and Lo Span
jumper to congure the span range of the unit. There
are basically two pressure ranges for the T7500; 0-5
psig and 0-15 psig. The 0-2.5 psig and 0-7.5 psig
range units are 0-5 psig and 0-15 psig range units
with the span jumper in the Lo Span position. Table
1 below shows the relationship between the T7500
pressure range and span jumper position.
5
Calibrations / Adjustments (continued)
J7
J7
J7 Jumper
Zero
Adjustment
Span
Adjustment
J1 Jumper
Jumper
Jumper
J1
J1
J1
J1
D
C
B
A
D
C
B
A
D
C
B
A
D
C
B
A
H
L
FORWARD ACTING
OPERATION
(Current Unit)
FORWARD ACTING
OPERATION
(Voltage Unit)
REVERSE ACTING
OPERATION
(Current Unit)
REVERSE ACTING
OPERATION
(Voltage Unit)
DAMPING
ADJUSTMENT
Decrease
Damping
Function
Increase
Damping
Function
HI SPAN SETTING
(Current & Voltage)
LO SPAN SETTING
(Current & Voltage)
7
6
4
2
1
5
8
9
13
12
14
15
16
17
11
Model TT7800
Model TD7800
Model
TA7800
3
10
Table 2 - T7500 Transducer Components
Item Qty. Description
1 1 Cover Machining
2 4 Screw
3 2 Gasket
4
1
1 Nozzle Body Assembly
5 1 Disk
6
1
1 Diaphragm
7 1 Spacer Ring
8
1
1 Diaphragm Assembly
9
1
1 Spring
10 1 Valve Body Assembly
11
1
1 Foam Block
12
1
1 Screw
13 1 Pintle
14 3 Spring, Pintle
15 1 O-Ring
16 1 Plug
17
1
1 Screw
1
22485-1 Service Kit Components.
Figure 6
Figure 7
800-334-8422
www.fairchildproducts.com
Fairchild Industrial Products Company
3920 West Point Blvd. • Winston-Salem, NC 27103
phone: (336) 659-3400 • fax: (336) 659-9323
[email protected] • www.fairchildproducts.com
FAIRCHILD INDUSTRIAL PRODUCTS COMPANY
REGISTERED TO ISO 9001:2008
10002346 QM08
ISO 9001:2008
Certified
IS-500T7500
Litho in USA
Rev - 1/16
LEGAL NOTICE:
The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modied or
amended in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information
set forth herein shall be furnished with each product sold incorporating Fairchild’s unit as a component thereof.
Table 3 - Troubleshooting
Problem Solution (check)
No Output
•
Supply pressure
•
Clogged orifice
Leakage
•
Connections
Low or improper
Span adjust
•
Zero and Span adjust
•
Low supply pressure
•
Output leakage
Erratic operation
•
DC signal
•
Loose wires or connections
•
Liquid in air supply
MAINTENANCE
To clean the Orifice, use the following procedure:
1.
Shut off the valve that supplies air to the Transducer.
2.
Remove the Transducer from the air line.
3.
Remove the 3 screws from the bottom of the Transducer.
4.
Locate the Orifice in the Spacer Ring.
5.
Clean with alcohol and compressed air.
6.
Reassemble the unit.
NOTE: Parts must be completely dry before reassembling.
NOTE: If troubleshooting solution and maintenance procedure does not correct the problem, install
the Service Kit.
22485-1 Service Kit, T7500 Transducer
/