Swagelok E User manual

MS-CRD-PTI-E
Rev 0 3-04-WEL
Industrial Pressure Transducers
User’s Manual
E Model
www.swagelok.com
■ General Information and Ratings . . . . . . . . . . . . . . 1
■Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 1
■ Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . 1
■Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . 2
■Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
■Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Contents
E Model
Use this hex only to
secure transducer while
installing electrical
conduit.
Mechanical Installation
Using the appropriate mating process connection, install the
transducer away from excessive heat and vibration whenev-
er possible. Be sure to install the system in accordance with
NEC requirements.
General information and Ratings
FM Approval Ratings
Explosion-proof
for Class I, Division 1, Groups A, B, C, D
Dust-ignition proof
for Class II and III, Division 1, Groups E, F, G
FM standards according to
FMRC 3600, 3615, and 3810
CSA Approval
CSA Standards according to CSA 25-1966, 30-M1986,
94-M91, and 142-M1987
Use this hex to install
the transducer process
connection
Safety Instructions
!For proper and safe operation, Swagelok E model
transducers must be installed, operated, and
serviced according to NEC, applicable local
regulations, and these instructions. Otherwise,
serious personal injuries, damage or both can
occur.
! Except for adjusting the length of the wires, the
electrical connection provided on the transducer
must be used as originally supplied and not
bypassed. Only qualified persons should work on
theses instruments.
! The shield / ground connection must be wired to
ground to protect the instrument from electromag-
netic disturbances.
! Do not exceed the overpressure rating.
Introduction
Swagelok®industrial pressure transducers allow for elec-
tronic monitoring of system pressures in a variety of indus-
trial applications. The E model transducer is specifically
designed to meet durability and performance demands of
industrial applications where explosion-proof ratings are
required.
50 N • m (36 ft • lb) max
®
Safe Product Use
Follow any enclosed instructions and refer to the product
catalog for detailed product information. When using a
transducer, the total system design must be considered to
ensure safe, trouble-free performance. Function, material
compatibility, adequate ratings, proper installation, oper-
ation, and maintenance are the responsibilities of the
system designer and user.

2MS-CRD-PTI-E
Rev 0 3-04-WEL
Electrical Installation
■ Connect the transducer to a power
supply and an indicator or other
recording device as shown below.
■ Use a NEC Class 02 power supply
■ Connect the cable shield or the
yellow/green wire to ground.
4 to 20 mA, 2-Wire System
The 2-wire system connects the power supply, transducer,
and indicating/recording instrument in a series circuit. This
creates a “current loop’ with the transducer functioning as
a current regulation device.
Use yellow/green wire or braided conductor for
shield/ground connection.
Supply+ V dc+/S+
Wire Coding Color
red
Signal– 0 V dc /S– black
Load
(1)
(2)
(+)
(+)
(-)
(-)
black
red
0 V dc/S–
V dc+/S+
Hazardous (Classified) Location Nonhazardous Location
Class I, Division 1, Groups A, B, C, D
Class II, Division 1, Groups E, F, G
Class III
(Note 1)
Control Equipment
Power Supply
(Note 2)
0 V dc/S–
Notes
1. Dust-tight conduit seal must be used when installed
in Class II and Class III environments.
2. NEC Class 02 power supply.
3. For types with cable: Seal conduit.
4. No revision to drawing without prior Factory Mutual
Research Approval.
Pressure
Transducer
Maximum Ratings:
Vmax = 30 V,
Imax = 100 mA,
Pi= 1 w
0 V dc+/S+
Maximum Load Equations
Millampere output signal, 2 wire
Output 4 to 20 mA
Supply V dc = 10 to 30 V
Max. Load RL= (V dc –10) / 0.02
Terminals See drawings
Legend
Power Supply
Load
V dc+ Plus power supply
0 V dc Minus power supply
(common, ground)
S+ Plus output signal
S– Minus output signal
(common, ground)
(+)
(-)
Wiring Diagram
Power
supply

3
MS-CRD-PTI-E
Rev 0 3-04-WEL
1 to 5 V, 3-Wire System
The 3-wire system features separate leads for the signal and
power supply. The third lead is common negative for both
devices. The signal source and indication/recording instruments
are connected in series, the power supply in parallel.
(1)
(3)
(2)
(+)
(+)
(-)
(-)
V dc+
S+
0 V dc/S–
red
black
brown
Supply+ V dc+
0 V dc /S–
Wire Coding Color
red
black
Supply–
Signal–
Signal+ S+ brown
Hazardous (Classified) Location Nonhazardous Location
Class I, Division 1, Groups A, B, C, D
Class II, Division 1, Groups E, F, G
Class III
(Note 1)
Control Equipment
Power Supply
(Note 2)
S
V dc–
V dc+
Notes
1. Dust-tight conduit seal must be used when installed
in Class II and Class III environments.
2. NEC Class 02 power supply.
3. For types with cable: Seal conduit.
4. No revision to drawing without prior Factory Mutual
Research Approval.
Pressure
Transducer
Maximum Load Equations
Voltage output signal, 3 wire
Output 1 to 5 V
Supply V dc = 10 to 30 V
Min. Load RL> 5 k Ohms
Terminals See drawings
Wiring Diagram
Power
supply
Load
Maximum Ratings:
Vmax = 30 V,
Imax = 100 mA,
Pi= 1 w
Control drawing
number 209752

Swagelok—TM Swagelok Company
© 2004 Swagelok Company
MS-CRD-PTI-E, R0
March 2004
These instructions are also available in
Chinese, French, German, and Japanese.
Visit Swagelok.com
For product technical data, including materials
of construction, see the Swagelok®Industrial
Pressure Transducers catalog.
Caution: Do not mix or interchange parts
with those of other manufacturers.
Maintenance
Swagelok E model pressure transducers are tested
and calibrated at the factory. There are no user service-
able components inside the case. DO NOT ATTEMPT
TO REMOVE THE CABLE CONNECTION.
REMOVING THE CABLE CONNECTION WILL DAM-
AGE THE TRANSDUCER AND VOID THE FACTORY
WARRANTY AND FM APPROVAL.
Caution:
Do not attempt to clear the pressure port with a
screwdriver or other sharp objects as this may
damage the sensing element of the transducer.
Troubleshooting Guide
Problem Possible Causes Remedy
Check power supply
No output
Power supply failure
Open wiring Check continuity
Wiring reversed Correct polarity
No pressure or port blocked Check pressure port
Transducer failure due to wrong supply
voltage or power surge Replace transducer
Output steady as
pressure changes
Pressure port blocked Check pressure port
Replace transducer
Check voltage supply
Adjust load or supply voltage
Transducer failure due to wrong supply
voltage or power surge
Full span output low
Supply voltage too low
Replace transducer➀
Load impedance wrong
Replace transducer➀
Transducer over-pressurized
Zero signal too low Transducer over-pressurized
Transducer over-pressurized
Transducer over-pressurized
Replace transducer➀
Replace transducer
Zero signal too high
Non-linear output
➀ Adjusting the controller or display device can usually compensate for small changes in the output signal.
Test the system for proper operation after adjustments are made. An excessive change in the output signal
indicates possible transducer damage. This may cause the output to be non-linear, requiring transducer
replacement.
Transducer over-pressurized Replace transducer