Omega Products OM-EL-1 Installation Manual

®

An OMEGA Technologies Company

OM-EL-1

PANEL MOUNT DATALOGGER

INSTRUCTION

SHEET

M-3139

OM-EL-1 measures,displays, recordsand controls temperature, humidity,pH, voltage, current, etc., witha memoryfor 8064readings and abattery life of up
to 3 years**. OM-EL-1 can operate as a 'stand alone' logger or be permanently connected to a system. The OM-EL-1 serial link is addressable and up to 8
loggers can be connected to one serial port. The PC software operates under Windows 3.1 and does notrequire specialist skill to operate. Data output is in
text format and can be easily integrated into any popular spreadsheet. Graphical output is possible under OM-EL-WIN. Consult the EasyLog software
manual for furtherdetails.

Battery Powered

Multi-function

°

C

Non-volatile Data Storage

Panel Mounting

Easy to Use

Cold Junction Compensation For
Thermocouple Temperature Sensing

Windows 3.1 Control Software

Model No - OM-EL-WIN

Easy to install and use, the control software will enable the user
to controlone or moreEasyLogs and operatethem asa complete
system. Supplied on a 3½" disk with a manual and serial link.
OM-EL-WINwill run underWindows95.

Accessories - Cables

Model No - OM-EL-EASYLINK

Extension connector to 'daisy chain' more than one EasyLog.
One extension will beneededfor each extra logger.

* Sensor dependent.
** Battery life dependent on input mode and sample

rate.
E.g. Rate Count,5 sec. sample rate.
Battery lifeis approximately30 days.

DIMENSIONS

All dimensions in mm (inches)

58.0 (2.28)

55.0 (2.16)

46.5(1.76)

Data Logger OM-EL-1

Specification Range Resolution Accuracy

Temperature ('K' type thermocouple)

Temperature (internal)

Humidity 5 to 95% RH 1%RH *
pH 0 to 14pH 0.1pH* ±0.1pH*

Voltage

Current 0 to 2A 0.01A ±1%
Rate count 0 to 255 1 unit N/A
Frequency 40 to 400Hz N/A ±2Hz
Battery 3.6V ½AA lithium (up to 3 years life)**
Serial link 8 Pin Mini DIN
Sensor connection Screw terminal
Memory capacity up to 8000 readings
Sample rate 1 sample per 5 seconds to 1 per 12 hours.

-25 to +200°C 1°C ±1°C

-13 to +392°F 1°F ±2°F

-10 to +50°C 1°C ±1°C

+14 to +122°F 1°F ±2°F

0 to 2V D.C. 0.01V

0 to 20V D.C. 0.1V

1.6

(0.06)

16.0

(0.63)

NOTE - BEZEL SHAPE AND

DIMENSIONS ARE LIABLE

TO CHANGE WITHOUT

Model No

±1%

PRIOR NOTICE

a

44.0 (1.73)

34.5 (1.36)

30.0 (1.18)

18.0 (0.70)

25.0 (0.98)

9.0 (0.35)

64.5 (2.54)

47.0 (1.84)

Ø2.50

(0.10)

1.1
(0.044)

17.8 (0.70)

(0.05)

USING EXTERNAL SIGNALS

PIN FUNCTION

A1, A2, REF Output for test diagnostics. Do not use.
HA High Alarm output =V+ whenalarmed.
SW 'Pushto record event' input. Momentarily connect to V-.
RS Reset input. Momentarily connectto V-. NOTE - logging will stopand restartat 0time.
LA Low Alarm output =V+ whenalarmed.
A+ Output= V+ when areading isin progress.
V+ Batterypositive.
V- Battery negative.

Only connect outputs to high impedance inputs, otherwise performance will be affected and battery life drastically reduced.

DO NOT APPLYAN EXTERNAL SUPPLY VOLTAGE
ACROSS THESE PINS WITHBATTERY IN PLACE.

5.0 (0.20)

1.5

6.1

12.8

(0.24)

(0.50)

2.00
(0.08)

1.0

2.50

(0.09)

(0.04)

5.2 (0.20)

31.8 (1.25)

Panel cut-out
62 x 32 (2.44 x 1.26)

BATTERY REPLACEMENT

Only use ½AA 3.6V lithium. The list belowisnot exhaustive. Check with supplierthat the battery youare orderingis 'press fit'and isnot fitted withsolder
tags or leads. Take careto connectcorrectly.

MANUFACTURER PARTNUMBER MANUFACTURER'SORDER CODE

MAXELL ER 3S TC n/a

SAFT LS3 n/a

SONNENSCHEIN SL-750/S 1107 501 100

TADIRAN ½AA/S 1551-02-210-000

WARNING: Handle lithiumbatteries carefully-observe warnings on batterycasing. Dispose ofin accordancewithlocal regulations.

VARIOUS OPERATING MODES

Pluggable Links (Link 1)

SHORTED

“K" type thermocouple

YELLOW (+VE)

A
B

RED (-VE)

TEMPERATURE (with thermocouple)

A 'K' type thermocouple can be connected
directly to the OM-EL-1. The range should
be selected inthe OM-EL-WINsoftware.

TEMPERATURE (internal)

No sensor needed. The OM-EL-1
uses its internal temperature

A

sensor. Ensure A to B is

B

SHORTED.

A
B

A capacitive humidity sensor can be
connected directly to the EasyLog.

NOTE

1. There is no RH annunciator on the LCD.
Sensor range - 200 to 300pF

SENSOR

HUMIDITY

0.5 to 1.0pF per %RH

*NOTES

1. When using the serial link, ensure that all signals are isolated from the computer ground.

2. When using several loggers together, ensure all signals are isolated or use the same ground.

OPEN

A
B

+
0-20V D.C.

-

VOLTAGE*

D.C. voltage within the ranges of 0-2V or
0-20V can be connected directly to the
OM-EL-1. Ensure the appropriate range
has been selectedin advance within the
OM-EL-WIN software. For higher voltage
measurement an external potential
divider network shouldbe added.

+

1

Ω

0-2A D.C.

A
B

6watt

0V

CURRENT*

D.C. current can be measured up to 2A
maximum by using an external 1 6watt

Ω

shunt across the input. Select the voltage
'0-2V range' in OM-EL-WIN software and
'A' in thedisplay symbols.

On-Board Link (Link 2)

Normally
SHORTED
Cut to
OPEN

A
B

pH (with internal reference)

Connect a pH probe that has an internal
reference cell directlyto the OM-EL-1.
(refer to theprobe's instruction manual).

NOTES

1. There is no need to open Link 2 if the
SENTEK P14 probe is used.

2. OPEN LINK 2

A
B

OM-EL-1 counts the number of pulses on
the input during the sample interval (e.g.:
every 5s, 10s, 20s etc.). At the end of each
sample interval, thecount number is stored
and the counter is reset to zero. A pulsed
input of 0-5V can be directly connected to
the OM-EL-1. The counter is incremented
on the fallingedge.

+

-

RATE COUNT*

Normally
OPEN
Solder to
SHORT

pH PROBE

+

0-5V

0

OMEGAnet On-Line Service

http://www.omega.com

USA:

ISO 9001 Certified

Canada:

For immediate technical or application assistance:

USA and Canada:

Mexico and
Latin America:

Benelux:

Czech Republic:

France:

Germany/Austria:

United Kingdom:

ISO 9002 Certified

omega.com

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Servicing North America:

One Omega Drive, Box 4047
Stamford, CT 06907-0047
Tel: [phone] FAX: [phone]

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e-mail: info omega.com
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Tel: [phone] FAX: [phone]
e-mail: canada omega.com

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

Tel: (95) 800-TC-OMEGA FAX: [phone]
En Español: [phone] ext:2203 e-mail:

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Tel: [phone] FAX: [phone]
Toll Free in Benelux: 06 0993344
e-mail: nl omega.com

Ostravska 767, 733 01 Karvina
Tel: [phone] FAX: [phone]
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Tel: [phone] FAX: [phone]
Toll Free in France: 0800-4-06342
e-mail: france omega.com

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: [phone] FAX: [phone]
Toll Free in Germany: 0130 11 21 66
e-mail: germany omega.com

25 Swannington Road, PO Box 7, Omega Drive,
Broughton Astley, Leicestershire, Irlam, Manchester,
LE9 6TU, England M44 5EX, England
Tel: [phone] Tel: [phone]
FAX: [phone] FAX: [phone]
Toll Free in England: 0800-488-488
e-mail: uk omega.com

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Servicing Europe:

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Internet e-mail

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info omega.com

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espanol omega.com

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OMEGA ENGINEERING, INC.warrants this unit to be free of defects inmaterials and workmanship fora periodof
from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal

to cover handling and shipping time.This ensures that OMEGA’s customers receive maximum coverage on each

warranty

product.
Iftheunit should malfunction, it mustbereturnedtothe factory for evaluation.OMEGA’sCustomerServiceDepartment will issue
anAuthorizedReturn (AR) number immediately upon phoneorwrittenrequest.UponexaminationbyOMEGA,if the unit is found
to be defectiveit will be repaired or replaced at no charge.OMEGA’sWARRANTYdoes not apply to defects resulting from any
actionofthepurchaser,includingbutnotlimitedto mishandling, improper interfacing, operation outside of design limits, improper
repair,orunauthorizedmodification.This WARRANTY isVOIDifthe unit shows evidence of having been tamperedwithorshows
evidence of being 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. Componentswhich wear are not warranted,
includingbutnotlimitedtocontactpoints,fuses,andtriacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes
responsibilityfor any omissions or errorsnor assumesliabilityfor any damages that result fromtheuse 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 specified and free of defects. OMEGA 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 DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are
exclusive and thetotal liability of OMEGA with respect to this order, whether based on contract, warranty,negligence,
indemnification,strict liability orotherwise, shall notexceed the purchase priceof the componentupon which liability
isbased.InnoeventshallOMEGAbeliablefor 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
10CFR21(NRC), used in or with any nuclear installation or activity;or (2) in medicalapplicationsorusedonhumans.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 basicWARRANTY/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)insuchamanner.

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
CUSTOMERSERVICEDEPARTMENT(IN ORDERTOAVOIDPROCESSINGDELAYS).TheassignedAR number should then
bemarkedontheoutsideofthereturnpackageandonanycorrespondence.
Thepurchaserisresponsibleforshippingcharges,freight, insurance and proper packaging to preventbreakageintransit.

WARRANTY NON-WARRANTY

FOR RETURNS,pleasehavethefollowing FOR REPAIRS, consult OMEGA for
informationavailableBEFORE contacting OMEGA: current repair charges.Havethefollowinginformation

1.P.O.numberunderwhichtheproductwasPURCHASED, availableBEFORE contacting OMEGA:

2.Modelandserialnumberoftheproductunderwarranty, 1.P.O.number to cover the COST of repair,
and 2. Modelandserialnumberoftheproduct,and

3.Repairinstructionsand/orspecificproblemsrelativeto 3.
theproduct. theproduct.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our
customersthelatestintechnologyandengineering.
OMEGAisaregisteredtrademarkofOMEGAENGINEERING,INC.
© Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reducedto any electronicmedium or machine-readableform,in whole orin part, without prior written
consentofOMEGAENGINEERING,INC.

ItisthepolicyofOMEGAtocomplywithallworldwidesafetyandEMC/EMIregulationsthatapply.OMEGAisconstantly pursuing certification of
itsproductstotheEuropean New Approach Directives.OMEGA will add the CEmarktoeveryappropriatedeviceupon certification.

The information contained in this documentisbelievedtobe correct but OMEGA Engineering, Inc.accepts no liabilityforanyerrors it contains,
andreservestherighttoalter specifications without notice.

Theseproductsarenotdesigned for use in,andshouldnotbeused for,patientconnectedapplications.WARNING:

WARRANTY/DISCLAIMER

RETURNREQUESTS/INQUIRIES

Repairinstructionsand/orspecificproblemsrelativeto

13 months

one (1) year product