Omega LDN-PS User Manual

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Servicing North America:

USA: One Omega Drive, Box 4047

ISO 9001 Certified

Stamford CT 06907-0047
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

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

For immediate technical or application assistance:

USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378 / 1-800-622-BEST

®

Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

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FAX: [phone] [e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Frystatska 184, 733 01 Karvina´, Czech Republic

Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

Tel: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®On-Line Service Internet e-mail

www.omega.com [e-mail]

It is the policy of OMEGA 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 Engineering, Inc. 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.

M-3340/1206

LDN-PS

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . .3

Service Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Terms and Symbols in this manual . . . . . . . . . . . . .3

3 General Information . . . . . . . . . . . . . . . . . . . . . . .5

PSIM Variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

PSIM General Layout . . . . . . . . . . . . . . . . . . . . . . .6

PSIM used in a small network configuration . . . . . .7

4 PSIM Schematic and Pin-out . . . . . . . . . . . . . . . .8

PSIM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . .8

5 Dimensions and Mechanical Installation . . . . . .10

5.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . .10

5.2 PSIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

PSIM-AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

PSIM-DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

PSIM-5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

7 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Orbit Network Power Supply Requirements . . . . . .16

Orbit Network Protection . . . . . . . . . . . . . . . . . . . .16

Voltage Drop Estimation . . . . . . . . . . . . . . . . . . . . .17

Application 1: Basic small network connection . . .18
Application 2: Large network with modules close

to computer and at a distance . . . .19

Application 3: Large network using PSIM-5V and

RS232IM for network control . . . . .21

Application 4: Modules located a long distance

from computer . . . . . . . . . . . . . . . .23

Application 5: Use with RS232 Interface Module

(RS232IM) . . . . . . . . . . . . . . . . . . .24

Index

PSIM-AC PSIM-DC PSIM-5V

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M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

Introduction

The Power Supply Interface Module (PSIM) is part of the

Orbit Measurement System. The PSIM provides local

power to the network when required. Example uses:

• Power via the communications cable is not sufficient

due to cable voltage drops.

• The controlling computer is not suitable to supply the

Orbit Network.

• An RS232 Interface Module is used to control the

Orbit Network.

1.0: Introduction

This Manual

The manual describes the three types of PSIM.

Technical specifications, safety information and

application notes are detailed for each type.

PSIM-AC

Universal mains input to regulated 5V output.

10 - 30 Vdc input to regulated 5V output.

5 Vdc input (from user regulated supply).

PSIM-AC

PSIM-DC

PSIM-5V

Note:

Throughout this manual the Orbit System is referred to as requring a 5V power supply. For any applications, actual
voltages or power supplies may be within the 4.75 to 5.25V range according to configuration. PSIM-AC and PSIM-DC
has a nominal 5.1V output no load voltage. This allows for voltage drops across cables when Orbit Modules are added.

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M-3340/1206

This equipment is designed as safety Class 1 apparatus

to comply with EN61010-1.

Service Safety

This equipment has been designed and tested to meet

the requirements of the Low Voltage Directive (1997)

and has been supplied in a safe condition. This manual

contains information and warnings that must be followed

by the user to ensure safe operation and to retain the

apparatus in a safe condition.

Terms and Symbols in this Manual

WARNING statements identify conditions or practices

that could result in personal injury or loss of life.

CAUTION statements identify conditions or practices

that could result in damage to the equipment or

other property.

This symbol indicates where applicable cautionary or

other information is to be found.

CAUTION: Power Source. The PSIM-AC unit should

be connected to the mains supply via a suitable lead

with a IEC320 socket. The user should fuse this

connection with a suitable fuse. Refer to Specification.

Apply no more than 265V rms. (AC) between supply

conductors and ground.

WARNING: Do not operate in an explosive

atmosphere.

WARNING: Do not remove covers or panels.

To avoid personal injury, do not remove covers

and panels. Do not operate the equipment

without the covers and panels fitted. There are

no internal adjustments required during the

commissioning of the equipment.

2.0: Safety Information

PSIM-AC PSIM-DC PSIM-5V

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M-3340/1206

WARNING: Danger arising from loss of

ground. During a fault condition and upon loss

of protective ground (earth), all accessible

conducting parts - including controls that might

appear to be insulated - can render an electric

shock.

WARNING: Grounding the equipment. The

unit is grounded through the mains lead: to

avoid electric shock, plug the power lead into a

properly-wired receptacle before connecting to

the input or output terminals. A protective

ground connection by way of the grounding

conductor in the power lead is essential for safe

operation.

2.0: Safety Information (continued)

PSIM-AC PSIM-DC PSIM-5V

CAUTION

This equipment contains no user serviceable parts. This

equipment must be returned to original supplier for all

service and repair. Dismantling the unit will invalidate the

warranty.

CAUTION

To avoid a fire hazard, use the correct fuse type, voltage

and current rating as specified for the equipment. Refer

fuse replacement to qualified personnel.

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M-3340/1206

3.0: General Information

PSIM-AC PSIM-DC PSIM-5V

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M-3340/1206

PSIM Variants

PSIM-AC

To power Orbit Modules
from a local mains supply

PSIM-DC

To power Orbit Modules
from a local DC supply,
such as 24V

Input: 90 - 230 VAC
Output: 5 VDC to Orbit Network

IEC plug

mains input

5m flying lead

Input: 10 - 30 VDC (customer supply)
Output: 5 VDC to Orbit Network

PSIM-5V

To power Orbit Modules
from a local 5V regulated
supply

5m flying lead

Input: 5 VDC (customer supply)
Output: 5 VDC to Orbit Network

Power Supply

OUTPUT

69

51

Power Supply

OUTPUT

69

51

Power Supply

OUTPUT

69

51

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M-3340/1206

3.0: General Information (continued)

PSIM-AC PSIM-DC PSIM-5V

PSIM General Layout

*Cable Lengths

• PSIM-AC and PSIM-DC have a fixed 2m cable
between PIE and power supply.

• PSIM-DC and PSIM-5V input cables are supplied 5m
long. This may be cut to length as required.

Plug side 5V
connection is

interrupted

T-CON is permanently

attached, module does

not separate

Orbit Network

Socket side 5V

from external power

supply introduced

Orbit Network

Power Supply Interface

Module (PSIM)

PSIM-AC

PSIM-DC

2m*

2m*

5m*

5m*

PSIM-5V

911173

PSIM

1 7 3 A 1 2 3 R 0 1

Power Supply

OUTPUT

9

5

6

1

Power Supply

OUTPUT

69

51

PSIM used in a small network configuration

3.0: General Information (continued)

PSIM-AC PSIM-DC PSIM-5V

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M-3340/1206

4.0: PSIM Schematic and Pin-out

The 5V power supply line from the network is isolated at the PSIM.

All modules before the PSIM are powered from the network. Example: Orbit Network Card.

All modules after the PSIM are powered from the external power supply connected via the PSIM. 0 V is common.

5 V to Orbit

Network

5 V from Orbit Network
(no pins on connector)

0 V0 V

RS485RS485

PLUG Side SOCKET Side

From External

Power Supply

PSIM-AC PSIM-DC PSIM-5V

PSIM Schematic

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M-3340/1206

4.0:

PSIM Schematic and Pin-out (continued)

The PSIM will only supply power to the Orbit Modules that follow the PSIM. Some typical configurations are shown. For

more information about PSIM and Orbit Network connection, refer to the Applications section.

Orbit Modules are designed to work from a supply voltage of 4.75 to 5.25 Vdc and care must be taken to ensure that all

modules have the right working voltage applied. See application notes.

Connection to PSIM from

Orbit Network

Plug Pin

-

out

View into plug

678912345

Connection from PSIM to

Orbit Network

Socket Pin

-

out1=

No connection

2=RS

485(A

)

3=RS

485(B)4=0V5=0V6

= +5V

7

= +5V

8

= +5V9=0V

shell=case

/0V

View into socket

678

9

12345

1=No connection

2=RS

485(A)3=RS

485(B)4=0V5=0V6

= No connection (no pin)

7

= No connection (no pin)

8

= No connection (no pin)

9=0Vshell=case

/0V

PSIM-AC PSIM-DC PSIM-5V

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M-3340/1206

5.1 Power Supply

The mounting plate must not

be removed. The mounting

plate is isolated and does not

need to be at earth potential.

The power supply may be mounted in

any orientation.

The power supply must not be

exposed to fluids or excessive dust.

Power supply cooling is by convection;

allow room for air to flow around the

unit.

5.0: Dimensions and Mechanical Installation

PSIM-AC PSIM-DC PSIM-5V

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M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

5.0:

Dimensions and Mechanical Installation

(continued)

5.2 PSIM

T-CON is permanently attached, module does not

separate.

For more information on mounting, refer to the Orbit

Measurement System Manual.

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12

M-3340/1206

Power Supply

OUTPUT

9

5

Power Supply

OUTPUT

6

1

69

51

PSIM-AC PSIM-DC PSIM-5V

6.0: Specification

Input

Voltage 85 to 264 Vac @ 47 Hz to 440 Hz.
Current 0.8 A
Connection via IEC320 connector
Isolation 2500 Vac input/output
Protection Input fuse and filter (not user replaceable)
Recommended Line Fuse 2A T (slo-blo) 250 V rating

DC Output

Output Voltage 5.1 Vdc Nominal
Output Current 1.8 A max (i.e. 31 Orbit Modules)
Output Regulation 3% (Line / Load)
Transient Response Max. 4% deviation recovers to 1% within 500 ms
Ripple and Noise < 1% p-p
Efficiency 65% to 70% typical
Protection see note 2

Thermal Derating The output current shall be derated from 40 °C

to 60 °C by 50%. (ie. Max. output at 60 °C
is 0.9A or 15 Orbit Modules.)

All specifications are for a PSIM supplying a full network of probes.

PSIM-AC

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M-3340/1206

6.0: Specification (continued)

PSIM-AC PSIM-DC PSIM-5V

Input

Line Voltage 10 to 30 Vdc.
Current 1.1 A @ 12 Vdc; 0.5 A @ 24 Vdc (nominal).
Connection see note 3 5m flying lead (Red = positive, White = negative)
Isolation >500 VDC input/output
Protection Input fuse and filter (not user replaceable)

Over voltage and under voltage shut down
Reverse connection

DC Output

Output Voltage 5.1 Vdc. Nominal
Output Current 1.8 A max. (i.e. 31 Orbit Modules)
Output Regulation 3% (Line / Load)
Transient Response 200us to 1% (FL to 1/2L)
Ripple and Noise < 1% p-p
Efficiency 80% to 86% typical
Protection see note 2

Thermal Derating The output current shall be derated from 40 °C

to 60 °C by 50%. (ie. Max. output at 60 °C
is 0.9A or 15 Orbit Modules.)

All specifications are for a PSIM supplying a full network of probes.

PSIM-DC

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M-3340/1206

6.0: Specification (continued)

PSIM-AC PSIM-DC PSIM-5V

Line Voltage see note 1 5.1 Vdc Nominal as supplied by user

5.25 Vdc MAX
Input Current 1.8 A MAX
Connection see note 3 5m flying lead (Red = positive, White = negative)
Isolation None
Protection see note 2 Current limiting resettable fuse

Over voltage 112% to 132% of nominal
Reverse connection
Transient

Note 1: No isolation or regulation is provided by the PSIM-5V. The voltage required should be set as required

to ensure correct operating voltage for each PIE that follows the PSIM-5V. See application notes for
further information.

Note 2: If there is a fault condition caused, for example, by a short circuit or transient, the protection circuits

will operate. The power must be removed and the fault corrected before the power is reinstated.
Under a fault condition, Orbit modules will not function correctly and a power on reset is required.
See application notes for further information.

Note 3: Supplied with 5m input cable as standard. This may be cut to length as required.

PSIM-5V

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M-3340/1206

6.0: Specification (continued)

PSIM-AC PSIM-DC PSIM-5V

Environmental

Operational temperature 0 to 60 °C
Storage temperature -20 to 60 °C
Humidity 5% to 95% non-condensing
Cooling Convection

Protection Rating Power supply unit IP40
Protection Rating PSIM module IP53

Approvals

EMC Susceptibility EN 50082-1
EMC Emission EN 50081-2 (note: ferrite block on cable must not be removed)
Safety EN61010-1

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M-3340/1206

Orbit Network Power Supply Requirements

All Orbit Modules are designed to work from a supply

voltage of 4.75V to 5.25 Vdc. When power is applied to

a module its current consumption will cause a slight

voltage drop across cables. Care must be taken to

ensure that all modules have the right working voltage

applied.

This section is for guidance only. Since every application

is different, it is not possible to give precise information

that covers all installations.

Your original supplier will be able to provide further

advice, if required.

7.0: Applications

Orbit Network Protection

Each PSIM provides a high level of protection for an

Orbit Network. Protection for mis-connection, over

voltage and transients is provided.

If a transient or other over voltage occurs, the protection

circuits will short circuit (crow bar) the power supply. At

this time, the voltage levels to each Orbit Module will be

below the working limit. When the fault condition has

been removed, Orbit power must be removed and re-

applied to allow a full hardware reset to take place. A

software reset is not possible under these conditions.

PSIM-AC PSIM-DC

Note:

Throughout this manual the Orbit System is referred to as requring a 5V power supply. For any applications, actual
voltages or power supplies may be within the 4.75 to 5.25V range according to configuration. PSIM-AC and PSIM-DC
has a nominal 5.1V output no load voltage. This allows for voltage drops across cables when Orbit Modules are added.

PSIM-5V

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M-3340/1206

7.0: Applications (continued)

Voltage Drop Estimation

The following information is for guidance only when planning an installation. Voltage measurements must still be made

to ensure the right working voltage for each Orbit Module.

PSIM-AC PSIM-DC PSIM-5V

PSIM-AC
PSIM-DC

see note 1

volt drop

(from no load output)

V = 5.3 x N (mV)

PSIM-5V

volt drop

V = 2 x N x ( L+1 ) (mV)

Orbit Module with T-CON

volt drop

V = 0.04 x 1+2+3+...+N

see note 2

Standard 2m Comms

cable

see note 3

volt drop

V = 15.2 x N (mV)

Where N = number of Orbit Modules with T-CON following any particular part above

L = cable length for PSIM-5V input cable

Note 1 Input cable length has no affect on this calculation.

Note 2 1 + 2 + 3 + ....... + N = N(N+1)/2.

Note 3 The cable supplied with the Orbit Network Card.

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18

M-3340/1206

Power Supply

OUTPUT

6

9

51

PSIM-AC PSIM-DC PSIM-5V

7.0: Applications (continued)

Application 1: Basic Small Network Connection.

• Power supplied to network from PC via network card, no PSIM used.

• Modules connected using standard communication cables.

Volt drop total in mV = cable 1 + module (3 off) + cable 2 + module (3 off)

= (15.2 x 6) + 0.04(6+5+4+3+2+1) + (15.2 x 3) + 0.04(3+2+1)
= 138 mV

Then approximate voltage at end of network = nominal supply voltage - calculated volt drop

= 5.1 - 0.138
= 4.96 V

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M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

7.0: Applications (continued)

Application 2: Large network with modules close to computer and at a distance.

• Power supplied from PC and PSIM (located at a distance from PC).

• Communications via standard communications cable and custom cable.

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20

M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

7.0: Applications (continued)

Volt drop V1is calculated in a similar way to the previous example except there is only a single cable and 3 Orbit
modules. The PSIM supplies power to remaining modules and are calculated separately. The long communications

cable does not carry supply current and so has no affect on volt drops.

Calculation for V1volt drop = cable + module (3 off)

= (15.2 x 3) + 0.04(3+2+1)
= 46 mV

Then approximate voltage at end of network = nominal supply voltage - calculated volt drop

= 5.1 - 0.046
= 5.054 V

i.e. greater than 4.75 Vdc; the minimum working voltage.

Calculation for V2volt drop = PSIM + module (3 off)

= (5.3 x 3) + 0.04(3+2+1)
= 16 mV

Then approximate voltage at end of network = nominal supply voltage - calculated volt drop

= 5.1 - 0.016
= 5.084 V

i.e. greater than 4.75 Vdc; the minimum working voltage.

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M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

7.0: Applications (continued)

Application 3: Large Network using PSIM-5V and RS232IM for network control.

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22

M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

The PSIM-5V is powering the whole Orbit Network. PSIM-5V volt drop is calculated using 12 as the total number of

Orbit modules; the RS232IM is included in this number.

Total Voltage drop = PSIM-5V + modules (6 off) + Cable 1 + Modules (6 off)

= (2 x 12 x [3+1]) + 0.04 (1+2+3+4+5+6+7+8+9+10+11+12)+ (15.2 x 6) + 0.04

(1+2+3+4+5+6)

= 96 + 3.12 + 91.2 + 0.84

= 191 mV

Then approximate voltage at end of network = nominal supply voltage - calculated volt drop

= 5.25 - 0.191

= 5.06 V

i.e. greater than 4.75 Vdc the minimum working voltage. In this example the input supply to the PSIM-5V could be

reduced to 5.1 V (the Orbit nominal value).

7.0: Applications (continued)

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23

M-3340/1206

PSIM-AC PSIM-DC PSIM-5V

7.0: Applications (continued)

Application 4: Modules located a long distance from computer.

• Also for a computer that is not suitable for supplying power to Orbit Modules.

• Power supplied from PSIM to modules.

• Connection via long cable providing RS485, 0V reference and screening.

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M-3340/1206

7.0:

Applications (continued)

PSIM-AC PSIM-DC PSIM-5V

Application 5: Use with RS232 Interface Module (RS232IM).

• Communication is via a RS232IM.

• Power to the RS232IM and Orbit Modules is via PSIM.

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25

M-3340/1206

M-3340/1206

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 13 months from date of purchase. OMEGA’s Warranty adds
an additional one (1) month grace period to the normal one (1) year product warranty to
cover handling and shipping time. This ensures that OMEGA’s customers receive
maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone
or written request. Upon examination by OMEGA, if the unit is found to be defective, it will
be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects
resulting from any action of the purchaser, including but not limited to mishandling, improper
interfacing, operation outside of design limits, improper repair, or unauthorized modification.
This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows
evidence of having been damaged as a result of excessive corrosion; or current, heat,
moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components which wear are not warranted,
including but not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information
provided by OMEGA, either verbal or written. OMEGA warrants only that the parts
manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER
WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth
herein are exclusive, and the total liability of OMEGA with respect to this order, whether
based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall
not exceed the purchase price of the component upon which liability is based. In no event
shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used:
(1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear
installation or activity; or (2) in medical applications or used on humans. Should any
Product(s) be used in or with any nuclear installation or activity, medical application, used
on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our
basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of
the use of the Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer
Service Department. BEFORE RETURNING ANY PRODUCT(S) TO
OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR)
NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN
ORDER TO AVOID PROCESSING DELAYS). The assigned AR number
should then be marked on the outside of the return package and on any
correspondence.

The purchaser is responsible for shipping charges, freight, insurance and
proper packaging to prevent breakage in transit.

FOR W

ARRANTY RETURNS,
please have the following
information available BEFORE
contacting OMEGA:

1. Purchase Order number under

which the product was
PURCHASED,

2. Model and serial number of the

product under warranty, and

3. Repair instructions and/or

specific
problems relative to the product.

FOR NON-WARRANTY REPAIRS,
consult OMEGA for current repair
charges. Have the following
information available BEFORE
contacting OMEGA:

1. Purchase Order number to cover
the COST of the repair,

2. Model and serial number of the

product, and

3. Repair instructions and/or specific

problems relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an
improvement is possible.
This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2004 OMEGA ENGINEERING, INC. All rights reserved. This

document may not be copied, photocopied, reproduced, translated, or reduced to
any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.

LDN-PS

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at www.omega.com

M-3340/1206

TEMPERATURE

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Thermocouple, RTD & Thermistor Probes, Connectors,

Panels & Assemblies

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Wire: Thermocouple, RTD & Thermistor

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Calibrators & Ice Point References

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Recorders, Controllers & Process Monitors

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Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

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Transducers & Strain Gauges

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Load Cells & Pressure Gauges

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Displacement Transducers

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Instrumentation & Accessories

FLOW/LEVEL

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Rotameters, Gas Mass Flowmeters & Flow Computers

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Air Velocity Indicators

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Turbine/Paddlewheel Systems

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Totalizers & Batch Controllers

pH/CONDUCTIVITY

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pH Electrodes, Testers & Accessories

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Benchtop/Laboratory Meters

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Controllers, Calibrators, Simulators & Pumps

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Industrial pH & Conductivity Equipment

DATA ACQUISITION

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Data Acquisition & Engineering Software

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Communications-Based Acquisition Systems

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Plug-in Cards for Apple, IBM & Compatibles

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Datalogging Systems

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Recorders, Printers & Plotters

HEATERS

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Heating Cable

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Cartridge & Strip Heaters

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Immersion & Band Heaters

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Flexible Heaters

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Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

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Metering & Control Instrumentation

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Refractometers

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Pumps & Tubing

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Air, Soil & Water Monitors

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Industrial Water & Wastewater Treatment

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pH, Conductivity & Dissolved Oxygen Instruments

LDN-PS