Omega Products OM-EL-2-12BIT Installation Manual

®

An OMEGA Technologies Company

OM-EL-2-12BIT

12 BIT PORTABLE DATALOGGER

INSTRUCTION

SHEET

M-3142

OM-EL-2-12BIT is an easy to usedisplay modulecapable of measuring, recording and displaying temperature(Pt 100),voltage and current. With12 bitA/D
resolution, a memory for 8000 readingsand abattery life of up to3 years,OM-EL-2-12BIT can operate asa 'standalone' logger or be permanently connected
to asystem. The OM-EL-2-12BIT serial linkis addressableand up to 8 loggers can be connected toone serialport. The PCsoftware operatesunder Windows
and doesnot requirespecialist skillto operate. Data outputis intext formatand canbe easilyintegrated intomost popularspreadsheets. Graphical outputis
possible under OM-EL-WIN. Consult theEasyLog softwaremanual for further details.

Battery Powered

Multi-function

Non-volatile Data Storage

°

C

Hand Held or Surface Mounting

Easy to Use

High Resolution Read-out

CONTROL SOFTWARE

Model No - OM-EL-WIN

Easy to install and use, the control software will run under
Windows 95 or 3.1 and enable the user to control one or more
EasyLogs, operating them as a complete system. Supplied on a
3½" diskwith a manualand seriallink.

ACCESSORIES - CABLES

Model No - OM-EL-EASYLINK

Extension cable to 'daisy chain' more than one EasyLog. One
extension will be needed for each extra OM-EL-2-12BIT module
that is attachedto thechain.

Ω
Ω

Ω

Input Impedance

200mV Range >1G
2V, 20V Range 0.5M
4-20mA Range 10

Data Logger OM-EL-2-12BIT

Specification Range Resolution Accuracy

Temperature - Low Range * -200 to +200°C 0.1°C ±0.5°C

-200 to +200 °F 0.1°F ±1°F

Temperature - High Range * -200 to +850°C 1°C ±1°C

-328°F to +1562°F 1°F ±2°F

Voltage - D.C. 0 to ±200mV 100 V

0 to ±2V 1mV

0 to ±20V 10mV
Current - D.C. 4 to 20mA 16 A
Battery 3.6V ½AA lithium (up to 3 years life) **
Serial link 8 Pin Mini DIN
Sensor connection 4 Pin Connector
Memory Up to 8000 samples**
Sample rate 1 sample per 5 seconds to 1 per 12 hours.

* Sensor dependent **Depending on sample rate

µ

µ

Model No

±0.05%

±1 Count

±0.1% ±1 Count

DIMENSIONS All dimensions in mm (inches)

70.0 (2.75)

46.5 (1.83)

54.0 (2.12)

17.5 (0.69)

15.0 (0.59)

26.0 (1.02)

54.0 (2.12)

8.00

(0.31)

37.5 (1.47)

LINK FUNCTIONS

Lk1: When daisy-chaining EasyLog Modules,

Lk2 & Lk3: Fitthese jumpers asshown in thetable (right).

remove the Lk1jumpers fromall modulesexcept one.

26.0 (1.02)

Screws M3 x 16

2.50

(0.09)

4.50

(0.17)

3.50

(0.13)

44.0 ((1.73)

60.0 (2.36)

65.5 (2.58)

V-

LA

HA

V+

AV+

LK3

LK2

RESET

LK1

+

LITHIUM
BATTERY

-

Measurement Range Jumper Link Setting

200mV L 2 open, L 3 Open
2V L 2 closed,L 3 open
20V L 2 closed, L 3 open
4-20mA L 2 open, L 3 closed
Temperature (Low Range) L 2 open,L 3 open
Temperature (High Range) L 2 open,L 3 open

kk
kk
kk
kk
kk
kk

PIN FUNCTIONS

SW: Switch input, normallypulled high. Connect momentarilyto V- to take a readingin One-Shot

mode or tostart loggingwhen configuredfor Push-to-Start inOM-EL-WIN.
AV+: Test pin. DoNot Use.
V-,V+: External power supplyconnections. Read ImportantNote belowprior touse.

External supply voltagerange 3 to 3.6Vdc.External power supplymust befloating with

respect to thesignal tobe measured.
HA, LA Normally at V-, these pinsgo highwhen theirrespective alarm levelshave beenreached

or exceeded.

Sensor Input

Vin- (R)

Vin+ (W)

Iin (R)

Iout (W)

IMPORTANT NOTE- Always removethe Lithium batteryfrom themodule

BEFORE

Internal Pin Header

connecting an external powersupply tothe module.
Failureto do somay causethe batteryto explode.

V+

LA

HA

AV+

V-

BATTERY REPLACEMENT

Only use ½AA 3.6V lithium. The listbelow is notexhaustive. Check with supplierthat the battery you areordering is 'pressfit' andis notfitted withsolder
tags. Take care toconnect correctly. DO NOT PRESSON LCDWHEN INSERTING BATTERY.

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 warningson batterycasing. Dispose ofin accordance withlocal regulations.

NOTE -

APPLICATIONS

TEMPERATURE

Iin (R)

red

Pt100
sensor

Pt100
sensor

Pt100
sensor

Vin- (R)

Vin+ (W)

white

Iout (W)

Pt100: 2-wire connection
(Lk2 and Lk3 open)

Iin (R)

red

Vin- (R)

Vin+ (W)

white

white

Iout (W)

Pt100: 3-wire connection
(Lk2 and Lk3 open)

Iin (R)

red

Vin- (R)

red

Vin+ (W)

white

white

Iout (W)

Pt100: 4-wire connection
(Lk2 and Lk3 open)

It is possible to measure parameters other than those outlined below. Use an appropriate sensor and conditioning circuit to

convert the parameterto bemeasured into alinear voltageor current andapply thissignal to asuitably scaledOM-EL-2-12BITmodule.

Measurement signals must always be isolated from the communications signals.

EasyLog
socket

EasyLog
socket

EasyLog
socket

VOLTAGE

Vin- (R)

Vin+ (W)

200mV DC connection
(Lk2 and Lk3 open)

Vin- (R)

Vin+ (W)

2V DC connection
(Lk2 closed, Lk3 open)

Vin- (R)

Vin+ (W)

20V DC connection
(Lk2 closed, Lk3 open)

EasyLog
socket

EasyLog
socket

EasyLog
socket

CURRENT

Vin- (R)

Vin+ (W)

4-20mA Indication
Use 4-20mA indication range
(default calibration 0-1000)
(Lk2 open, Lk3 closed)

1R

Vin- (R)

Vin+ (W)

200mA DC connection
Use 200mV range with
annunciators set to mA.
Module will require calibration.
(Lk2 and Lk3 open)

Vin- (R)

R

Vin+ (W)

For higher ranges, use 200mV
range and R=

where = 2A or 20A fsd.
Module will require calibration.
(Lk2 and Lk3 open)

0.2

I

I

EasyLog
socket

EasyLog
socket

EasyLog
socket

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http://www.omega.com

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OMEGA ENGINEERING, INC. warrantsthis unit to be free of defects in materials and workmanship for a period of
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.
Ifthe unitshouldmalfunction, itmust be returned to thefactory for evaluation.OMEGA’sCustomer ServiceDepartment willissue
anAuthorized Return(AR) numberimmediatelyupon phoneor written request.Uponexamination by OMEGA,if theunitis found
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and 2. Modeland serial numberofthe product, and

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theproduct. theproduct.

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© Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
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WARRANTY/DISCLAIMER

RETURNREQUESTS / INQUIRIES

Repairinstructions and/or specificproblemsrelativeto

13 months

one (1) year product