Omega Products PX5200 Installation Manual

Installation and Maintenance

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Instructions for OMEGA

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PX5200 Differrential Pressure
Transmitter M-5109/0112

User’s Guide

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Version 6.03 5/11

PX5200

M5109/0212

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Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified

Canada: 976 Bergar

Stamford, CT 06907-0047
Toll-Free: 1-800-826-6342 Tel: [phone]
FAX: [phone] e-mail: [e-mail]

Laval (Quebec), Canada H7L 5A1
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FAX: [phone] e-mail: [e-mail]

For immediate technical or application assistance:

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Mexico: En Español: 001 [phone] FAX: [phone]

Customer Service: 1-800-622-2378/1-800-622-BEST
Engineering Service: 1-800-872-9436/1-800-USA-WHEN

[e-mail] e-mail: [e-mail]

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Servicing Europe:

Benelux: Managed by the United Kingdom Office

Czech Republic: Frystatska 184

France: Managed by the United Kingdom Office

Germany/Austria: Daimlerstrasse 26

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

733 01 Karviná, Czech Republic
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D-75392 Deckenpfronn, Germany
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One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD England
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European
New Approach Directives. OMEGA will add the CE mark to every appropriate device upon
certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

2

CONTENTS

CAUTION................................................................................................ 4-5

1. PREFACE.............................................................................................. 5

2. OVERVIEW .......................................................................................... 5

3. FEATURES............................................................................................ 5

4. SPECIFICATIONS .................................................................................. 6

5. MOUNTING .......................................................................................... 8

5.1 Mounting Location........................................................................ 8

5.2 Mounting Options ........................................................................ 8

5.3 Pressure Connection.................................................................... 8

6. PIPING ................................................................................................ 9

7. WIRING................................................................................................ 10

7.1 Cable / Wiring Specifications........................................................ 10

7.2 Wiring Instructions........................................................................ 10

8. DISPLAY FUNCTIONS ............................................................................ 13

9. MODE CHANGES .................................................................................. 14

10. POWER-ON MESSAGE .......................................................................... 14

11. MEASUREMENT MODE .......................................................................... 15

11.1 Filter (Damping) .......................................................................... 15

11.2 Pressure Display Mode (Re-scaling in “inH

O” units).................. 15

2

11.3 Linear Display Mode

(Re-scaling in arbitrary user defined units) .................................. 16

11.4 Flow Measurement/Square Root Extraction Mode...................... 19

11.5 Min/Max Display .......................................................................... 26

12. ZERO ADJUSTMENT MODE .................................................................... 27

13. KEY LOCK ............................................................................................ 28

14. SETTING MODE .................................................................................... 20

14.1 Setting Items for Pressure Display Mode
(Re-scaling in “inH

O” units) ........................................................ 28

2

14.2 Setting Items for Linear Display Mode

(Re-scaling in arbitrary user defined units) .................................. 29

14.3 Setting Items for Square Root Extraction (Flow Measurement) .. 31

14.4 Setting Procedure ........................................................................ 32

14.5 Loop Check .................................................................................. 34

15. DIMENSIONAL DRAWINGS .................................................................... 35

16. MAINTENANCE...................................................................................... 36

3

WARNING! READ BEFORE INSTALLATION



GENERAL:

A failure resulting in injury or damage may be caused by excessive
overpressure, excessive vibration or pressure pulsation, excessive in­strument temperature, corrosion of the pressure containing parts, or
other misuse.

OVERPRESSURE:

Pressure spikes in excess of the rated overpressure capability of the trans­mitter may cause irreversible electrical and/or mechanical damage to the
pressure measuring and containing elements.

Fluid hammer and surges can destroy any pressure transmitter and must al­ways be avoided. A pressure snubber should be installed to eliminate the
damaging hammer effects. Fluid hammer occurs when a liquid flow is sud­denly stopped, as with quick closing solenoid valves. Surges occur when flow
is suddenly begun, as when a pump is turned on at full power or a valve is
quickly opened.

Liquid surges are particularly damaging to pressure transmitters if the pipe is
originally empty. To avoid damaging surges, fluid lines should remain full (if
possible), pumps should be brought up to power slowly, and valves opened
slowly. To avoid damage from both fluid hammer and surges, a surge chamber
should be installed.

Symptoms of fluid hammer and surge’s damaging effects:

• Pressure transmitter exhibits an output at zero pressure (large zero offset).

• Pressure transmitter output remains constant regardless of pressure

• In severe cases, there will be no output.

FREEZING:

Prohibit freezing of media in pressure port. Unit should be drained to prevent
possible overpressure damage from frozen media.

STATIC ELECTRICAL CHARGES:

Any electrical device may be susceptible to damage when exposed to static
electrical charges. To avoid damage to the transmitter observe the following:

• Ground the body of the transmitter BEFORE making any electrical
connections.

• When disconnecting, remove the ground LAST!



4

Note: The shield and drain wire in the cable (if supplied) is not connected to the
transmitter body, and is not a suitable ground.

1. PREFACE

Thank you for purchasing the PX5200 Rangeable Differential Pressure
Transmitter. Refer to the Omega PX5200 Data Sheet for product specifica­tions and applicable operating conditions.

2. OVERVIEW

The PX5200 is a 4-20mA loop powered (two-wire) differential pressure
transmitter with integral display incorporating Ashcroft’s proven SiGlas silicon
based variable capacitance sensor with stainless steel media isolation di­aphragms and silicone pressure transmission fluid. The device was designed
to offer the user small size and user adjustable ranging for applications such
as tank level measurements and gas / liquid flow measurements.

3. FEATURES

(1) Media Compatibility: Wetted materials consist of 316 stainless steel,

alumina ceramic and viton to handle a wide range of media with the
ability to offer ranges as low as 4˝ W.C. F.S. (URL).

(2) Linear Scaling Function:The linear (scaling) function allows the user

to adjust zero and span values providing a corresponding
4-20mA output signal.

(3) Flow Measurement/Square Root Extraction Function: Momentary

flow rate and integrated volume can be displayed and analog signal
can be output.

(4) Digital Filter Function: User adjustable damping of the output signal

by means of internally calculated moving average to provide a stable
output signal in applications where the user wants to reduce the pulsat­ing of the display and / or output signal.

(5) LED Back Light: To supplement the LCD display when conditions re-

quire (dark area, night etc.).

(

6) Loop Check Function: Allows the user to output an analog signal cor-

responding to differential pressure without applying pressure, simplify­ing system maintenance and troubleshooting.

5

(7) Zero and Span Adjustment: The adjustment of the Zero (4mA) and

Span (20mA) reading via internal push buttons.

(8) Key Lock Function: Prevents inadvertent overwriting of setting values.

Can not be reset by restoring power when activated.

(9) IP65 / NEMA 4X Environmental Rating: Enclosure environmental rat-

ing suitable for indoor and outdoor installation, depending upon operat­ing temperature range.*

(10) CE Compliance: EN613261 1997, A1/1998, A2/2001 (Heavy Industrial).

*Display not to be mounted in direct sunlight.

4. SPECIFICATIONS

ITEM DESCRIPTION

1. Media/Wetted Parts

Gas or liquid compatible with 316SS, viton and alumina
ceramic (isolation fluid is silicone oil). Media tempera­ture range: –10 to +70°C

2. Overpressure
(Proof)

Static (Line) Pressure: 300psi all ranges
Singe Side (Differential) Limits:

• Pressure Ranges <8˝W.C., ±4˝W.C.; 30psid

• Pressure Ranges >20˝W.C., ±8˝W.C.; 100psid

3. Supply Voltage

4. Output

12-32Vdc
4-20mAdc (two wires, Output range: 3.2 to 20.8mAdc)

Response Time: 100ms (with “0” filter setting)
Resolution: 0.1%F.S.,
Load resistance: 500Ω max.

5. Accuracy

±0.5% F.S. (URL) at 73°F (23°C); includes the effects of

non-linearity, hysteresis and non-repeatability)

6. Display Accuracy

±0.50% F.S. (URL) + 1 digit at 23°C

6

7. Rangeability /
Adjustment

8. Display

9. Units

10. Setting Adjustments

11. Enclosure

12. Pressure Connection

13. Electrical
Termination

14. Memory Protection

15. EMC Directive

16. Operating
Temperature

17. Storage
Temperature

18. Vibration

19. Shock

20. Insulation
Resistance

21. Weight

Zero: –10 to +110% FS
Span: –10 to + 110% FS

Character height: 10mm, with LCD display with LED
backlight
Pressure / linear display: (4) LCD digits max.
Display update: 500 ms

Pressure Units: inH2O (2), (1) arbitrary
Internal key switches (Mode, T, S)

Scaling function: Linear output, linear and momentary
flow rate display/output.
Filter function: User adjustable output damping select
from 0, 2, 4, 8 and 16 (None, 2, 4, 8, and 16 (s)).
Loop check function: User adjustable output for loop/
system check and troubleshooting, 4-20mA.

Material: Aluminum die cast
Environmental Rating: IP65 / NEMA 4X

1

⁄4 NPT female pressure ports w/equalizing valve

Cable Gland (Optional): Cable diameter 0.35 to 0.47˝
(9-12mm)

1

⁄2 NPT Female Conduit Adapter (Optional)

Terminal Block: 14-22 AWG (stranded or solid wire)
Permanently stored by EEPROM (nonvolatile memory)
CE Compliance: EN61326/1997, A1/1998, A2/2001
–10 to 60°C (14 to 140°F)

–20 to 70°C (–4 to 158°F)

5g’s, 150Hz
10g’s, 16ms
50Vdc, 100MΩ or more

Approx. 670g (1.5lbs)

7

5. MOUNTING

5.1 General

The GC52 was designed to be mounted using the bracket supplied.
Pressure connections via the (2)

1

⁄4 NPT female pressure ports. Al-

though the display can be rotated in 90 degree increments by remov­ing the display cover it is preferable to orientate the electrical
termination downward, particularly in applications where protection
from the environment is required.

5.2 Mounting Orientation

It is preferable to orientate the unit with the pressure ports either
downward or upward. If mounting with pressure ports to the side an
“orientation effect” will be seen at zero pressure as the pressure gen­erated by the silicone oil fill will appear as a zero offset. If mounting in
this manner this effect may be taken out by re-setting zero in final
mounting orientation.

5.3 Installing Pressure Port Manifold
(1) Mounting 25.4mm Manifold (

1

⁄4˝ NPT female ports)

Manifold is secured using the (4) socket head bolts (M4x40) and
appropriate allen wrench which is supplied. Check for dust and
dirt on the O-ring and seal area, clean if necessary, before in­stalling to ensure proper connection. The direction of the manifold
is not important, determine best position by ability to operate the
equalizing valve.The equalizing valve is used to open both ports
to the line pressure at time of installation. Once installed and the
system has been pressurized the valve needs to be closed to iso­late the low and high pressure sides of the device.

Tighten the equalizing valve with a torque of 0.75 ft-lbs±15%.
When loosening the valve do not back off by more than three
turns from the closed position.

(2) Panel Mounting

Similar to (1) above except that the PX5200 is put between the
manifold and the bracket and then the (4) socket head bolts
(M4x40) are installed.

8

(2) 1/4˝ NPTF

1.4 (35)

.55 (14)

.83 (21)

1.8 (45.4)

1.0 (25.4)

Hex .83 (21)

.33 (8.5)

Equalizing
valve

Low pressure
inlet (L)

Panel mounting
bracket

High pressure
inlet (H)

Equalizing
valve

M4 x 40

O-rings

Lower connection diagram

Connection: Lower side.

• 1.0 in. (25.4mm) mounting manifold

6. PIPING

Note: High (H) and Low (L) pressure
sides of the device are marked on the
yellow label affixed to the housing of
the unit.

Install the high pressure side of the ap­plied differential pressure in the pres­sure inlet of the high pressure side (H)
and the low pressure side in the pres­sure inlet of the low pressure side (L).

(Refer to the outline drawing of section 14.)
After the piping is completed check for leaks.

(1) Piping of 1.0 in (25.4mm) Manifold (

Use caution when installing to keep metal chips and other debris from
entering pressure transmitter. In addition, when sealing tape is used,
do not apply to last two threads at the end of the fitting

1

⁄4˝ npt female ports)

9

Note:

• When transporting and / or mounting do not apply excessive shock
or use device as a step.

• The piping should be of proper length so as not to apply load to the
connection point on the transmitter.

• At the time of mounting or when bleeding air from the device be sure
to open the equalizing valve with a flathead screwdriver so that ex­cessive pressure (more than the allowable maximum differential pres­sure) is not applied to the differential pressure sensor. Maximum torque
to apply to equalizer valve is 0.75 ft-lbs ±5%.

7. WIRING

7.1 Cable/Wire Specifications

Use appropriate cable described below which is suitable for power
supply requirements and ground to housing.

Terminal Strip

Cable
Requirements

SMKDSP1.5/2-5.08 Phoenix Contact

• Two core shielded cable

• Cable outer diameter: 0.35˝ to 0.47˝ 9-12mm
(Required for correct installation with Cable
Gland option)

• Wire Gauge: 14-22 AWG (multi-strand or solid)

7.2. Wiring Instructions

• To reduce potential for noise do not run pressure transmitter cable /
wires alongside (same conduit as) high voltage (line power) lines.
For optimum results use dedicated conduit for PX5200 cable / wires.

• If using the Cable Gland termination option must use cable within
previously noted diameters to maintain environmental ratings.

• When connecting shield / drain wire, only connect one end which
should be at the receiver ground.

• Wiring stripping instructions, remove cable jacket 2-3˝ and strip wires
±0.25˝. Shield / drain wire should not be exposed at the pressure
transmitter termination.

• Remove cover and carefully remove the display to access the termi­nal strip, take care not to mishandle the display and associated elec­tronics.

10

＋

−

Terminal box

Display (board)

Shield

Power source

＋ −

Receiver

Transmission cable

CASE

DISPLAY

CAP

Inside sensor Line

LCD holder

Notch

Transmission cable
(Twist)

Sheath

Display

Wire terminals

Wire

Turn with a screwdriver

LCD clips (4)

Display board

Power supply
terminal block

P

X

5

2

0

0

• Turn display over to
expose terminal strip,
make positive and
negative connections,
insert wire depth is
equal to recommended
strip length (0.25˝).

11

• After completing connections locate retaining clips in the appropri-

1000

750

500

250

0

0 322010

1020

30

Load Limitations 4-20mA Output Only

12 24

545

OPERATING

REGION

Loop Resistance (V)

ate notches and carefully place into the housing. Be sure that inter­nal sensor transmission wire does not cross the power supply lines
just installed.

• If using the Cable Gland be sure to properly tighten sealing grommet
before applying any tension on the cable, the cable gland provides
strain relief and environmental sealing.

• Tighten GC52 cover to maintain environmental rating.

• Connect to power source and receiver and power on to confirm cor­rect wiring (see Section 10 for more detail).

• Power Supply Requirements: Although the 4-20mA signal can travel
over long distances one of the most common problems is inadequate
power at the pressure transmitter due to the voltage drop across the
loop. Be sure to review table below to determine that 12-32V is get­ting to the pressure transmitter.

12