Omega SMSC-1 User guide

Specications

Input:

 VoltageInput(eldcongurable)
  FullScaleRange:

10mV to 100V

  Impedance:>100KOhms
   Overvoltage:
   Intermittent,400Vrms
   Continous,264Vrms
  CurrentInput(eldcongurable)
   FullScaleRange:1mAto100mA
   Impedance:20Ohms,typical
   Overcurrent:170mARMS,max
   Overvoltage:60VDC
  CommonMode(InputtoGround): 

  1500VDC,max
  ZeroTurn-Up:
   50%offullscalerange
  SpanTurn-Down:
   50%offullscalerange

Pin Connections

 1 Power(Hot)
 2 NotInternallyConnected
 3 Power(Neu)
 4 SpareTermination
 5 Input(+)
 6 Input(-)
 7 Output(+)
 8 Output(-)

DCPower:PIN1=(+);PIN3=(-)

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.com info@omega.

com

Servicing North America:

U.S.A.:

Omega Engineering, Inc., One Omega Drive,
P.O. Box 4047, Stamford, CT 06907-0047 USA
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378
(USA & Canada only)
Engineering Service: 1-800-872-9436
(USA & Canada only)
Tel: [phone]
Fax: [phone]
e-mail: info @omega.com

For Other Locations Visit
omega.com/worldwide

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.

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
in which wear is not warranted, include but are 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,
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MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND
ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY
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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
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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.

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 WARRANTY RETURNS, please have the following
information available BEFORE contacting OMEGA.

1. Purchase order number 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

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords custo mers the late st
technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© COPYRIGHT 2015 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, translated, or reduced to
any electronic medium-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.

the product.

Output:

 VoltageOutput
  Output:0-5V,0-10V
  Drive:10mA,max(1KOhmsmin.@10V)
 CurrentOutput
  Output:0-1mA,4-20mA
  Compliance:
   0-1mA:10V,max.(10KOhms,max)
   4-20mA:20V,max.(1KOhms,max)

LED Indication (green):

 InputRange
  >110%input:8Hzash
  <0%input:4Hzash

Accuracy (Including Linearity Hyster-

esis):

 <20mV/2mA:±0.35%offullscale,typical,

0.5%,max

 >20mV/2mA:±0.1%offullscale,typical,

0.2%,max

Response Time (10-90%):

 200mSec.,typical

Stability (Temp):

 ±0.025%offullscale/°C,typical, 

±0.05%/°C,max.

WARRANTY/DISCLAIMER

RETURN REQUESTS/INQUIRIES

FOR NON-WARRANTY RETURNS, 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.

Common Mode Rejection:

 DCto60Hz:120dB

Isolation:

 1500VDCbetweeninput,output&power

ESD Susceptibility:

 MeetsIEC801-2,Level2(4KV)

Humidity (Non-Condensing):

 Operating:15to95%(@45°C)
 Soak:90%for24hours(@45°C)

Temperature Range:

 Operating:-15to60°C(5to140°F)
 Storage:-25to70°C(-13to158°F)

Power:

 Consumption:3Wtypical,5Wmax
 Standard:selectable120/240VAC,±10%,

50-60Hz

 Optional:9to30VDC,inverterisolated

Weight:

 0.60lbs

Agency Approvals:

ULrecognizedperstandardUL508.

SMSC-1

DC Input, Field Configurable
Signal Conditioner

INSTRUCTION

SHEET

Shop online at omega.comSM e-mail: [email protected]
For latest product manuals: www.omegamanual.info

 EliminatesGroundLoops
 50%AdjustableFieldCongurableInputRanges:

10mVto100V(200Von-2001),1mAto100mA

 FourFieldCongurableOutputRanges:0-5V,

0-10V,0-1mA,4-20mA

Description

The eld congurable SMSC-1 isolator offers wide ranging
inputandoutputcapabilityforscalingandtransmittinganalog
DCsignals.TheSMSC-1willacceptinputvoltagespansfrom
10mVupto100volts,aswellasinputcurrentspansfrom1mA
to100mA.Theinputzeroandspanpotentiometersenable50%
inputzeroandspanadjustability.Forexample,the0-10Vinput
rangecanbeelevatedto5-10V,compressedto0-5Vorsetto

2.5-7.5V.TheAP4380offersfour(4)popularoutputranges:
0-5V,0-10V,0-1mAand4-20mA.The4-20mAcomplianceisa
powerful20VDC.ModelSMSC-1canbeconguredtoaccept
bipolar input ranges and offers selectable normal or reverse
actingoperation.

The SMSC-1 is a 3-port industrial isolator --  the output is
opticallyisolatedfromitsinputupto1500 VDC.  The ASIC*­basedI/Ochannelisindependently transformer isolated from
theselectable120/240VACpowersupply.

Application

TheSMSC-1eldcongurableisolatorisusefulineliminating
groundloops,convertingsignallevelsandprovidingsignaldrive
andredundancy.ThewiderangingcapabilityoftheSMSC-1
providesquickuniversalsparepartcoverage.

Diagnostic LED

The SMSC-1 is equipped with a dual function LED signal
monitor.  The green, top-mounted LED indicates line power
andinput signal status. Activeline power isindicatedby an
illuminatedLED.Iftheinputsignalis10%morethanfullscale
range,theLEDwillashat8Hz.Below0%,theashrateis4Hz.

Options

U

Urethanecoatingofinternalcircuitryforprotectionfrom

corrosiveatmospheres.

Conguration

ThefactorypresetstheSMSC-1inputandoutputto4-20mA,as
showninFigure1.Thesupplypowerisconguredfor120VAC
operation.ForotherI/Oranges,removethefourbasescrews
andcasetoaccesstheI/Ocard.

M5481/0715

ProvidesIsolatedDCOutput

inProportiontoaDCInput

 Plug-inInstallation
 Selectable120/240VACPower

 (9to30VDCAvailable)

 ASICTechnologyforEnhancedReliability

RefertoFigure1forcongurationandprogramtheI/Ochannel
asdesired.Replacethecoverbeforeapplyingpower.

Warning:Donot attempt to changeanyswitch settings with
powerapplied.Severedamagewillresult!

Input

1.Positioninputjumper“W1”forCurrent(I)orVoltage(V)input.

V

I

W1

W1

Current

2.Setposition5oftheInputRangeSelectorforUnipolar(e.g.
0to5V)orBipolar(e.g.-5to5V)operation.

ON

>

2 345

1

6

Unipolar

Note:Abipolarrangeselectionwilldoubleanyinputrangefrom
Table1(e.g,10Vspanbecomesa-10to10Vbipolarspan)

3. Set position 6 of the Input Range Selector for Normal or
Reverse operation.  Reverse acting produces a decreasing
outputwithanincreasinginput.

ON

>

2 3

1

4

5

6

Normal

4. Using Table 1, congure positions 1 through 4 of the Input
RangeSelectorforthedesiredmaximuminput.Roundthedesired
maximum input value to the next highest range (e.g., 0-70V =
100Vrange).

I

Voltage

ON

>

2 3

1

Bipolar

ON

>

2 3

1

Reverse

V

465

4

5

6

Output

Warning:

Donotconguretheoutputrangeswith the power

on.Damagetounitmayresult.

1.UsingTable2,congureOutputSelectorforoneofthefour
(4)standardoutputs.

Power

1.ConguretheACjumpersforeither120or240VACopera­tion.SeeFigure2.

Table 1: SMSC-1 Input Ranges

Calibration

1.ConnecttheinputtoacalibratedDCvoltageorcurrentsource
andapplypower.Wait1hourforthermalstabilitybeforemoni­toringthevoltage/currentoutput.RefertoPINCONNECTIONS.

2.Setthecalibratortothedesiredminimuminputandadjust
theZero,20-turn,potentiometerfordesiredminimumoutput.

3.Setthecalibratortothedesiredmaximuminputandadjust
theSpan,20-turn,potentiometerfordesiredmaximumoutput.

4.Repeatsteps2and3forbestaccuracy.

Table 2: SMSC-1 Output Ranges

I/O Card Conguration

Diagnostic

LED

ON

Input Range

Selector (SW1)

Output Range

Selector (SW2)

>

1

ON

>

1

2 3

2 3

Top View Diagram

W1

I/V Input Selection

V

I

4

6

5

4

6

5

Voltage* Current*

 20mV 2mA

 50mV 5mA

 100mV 10mA

 200mV 20mA

 500mV 50mA

 1V 100mA

 2V

5V

10V

25V

50V

100V

Input Range Selector

(SW1)

ON

4

2 3

1

ON

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

ON

>

1

2 3

2 3

2 3

2 3

2 3

2 3

2 3

2 3

2 3

2 3

2 3

5 6

4

5

4

5

6

4

5 6

6

5

4

4

6

5

4

5

6

4

5

6

4

5

6

4

5 6

4

5 6

4

5 6

* Use jumper (W1) to congure voltage or current input. All unipolar
ranges are zero based.

Range*

0 to 10V

0 to 5V

 0to1mA

 4to20mA

Output Range Selector

(SW2)

ON

>

ON

>

ON

>

ON

>

4

2 3

1

2 3

1

2 3

1

2 3

1

6

5

4

5 6

4

5 6

6

4

5

Span

Zero

Top

Figure1:SMSC-1I/Ocardfactorycalibration:

4-20mAinputandoutput(shownsidewaystoviewswitches)

Warning:DonotcongureI/Oswitch
rangeswithpoweron.Damagewill
result!

Warning:Applyingvoltagetothe
inputwithW1incurrent(I)position
willresultindamagetotheunit.

Mounting

Allmodulesfeatureplug-ininstallation.ModelSMSC-1usesan8-pin
base,eithermoldedsocketSKT-SM-8PorDINsocketSKT-DR-8P.

Dimensions

Dimensionsareinmillimeters(inches)

Warning:Donotchange

withpowerconnected!

Figure2:120/240VACSelection

SKT-SM-8P (Track/Surface)

Mark II

SKT-DR-8P (DIN Rail)