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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Temperature Monitor with SMS Alerts
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Quick Start Guide
1. Check that there is adequate mobile signal strength from the appropriate
provider at the location where you intend to use the unit.
2. Download and install the “EasyLog SMS” App from Google Play store or
the App Store.
3. CarefullyremovethebatteryplateandtyourSIMcardintothe
microSIMholder.
4. Insert4xAAalkalinebatteriesintotheunitandreplacethebatteryplate.
5. Connectyourprobeintheexternaltemperatureprobeport.
6. Open the App on your smartphone or tablet and and add a new device.
UsethemobilenumberthatwassuppliedwithyourSIMcard.
7. IfusingAndroid,selectthedevicejustaddedandpressthe“Setup”button.
8. Conguretheparameterstosuityourintendedapplication,thenpress
the “Start” button (Android) or “Send SMS Message” button (iOS) and
followtheon-screeninstructions,whichwillpreparetheunittoreceivethe
congurationSMSandsendthemessage.
9. Oncethecongurationhasbeencompleted,youwillreceivea
“Setup complete” message and the unit will begin monitoring.
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1
Status buon
2
Stop buon
3
Status LEDs
4
Netlight
5
External temperature probe port
6
Sounder
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Baery Bay
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Reset switch
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SIM card holder
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EL-SMS App User Guide - Android Page No.
Features
4
Compatibility/Limitations
4
App Use
4
EL-SMS App User Guide - iOS
Features
7
Compatibility/Limitations
7
App Use
7
EL-SMS-2G-TP - User Guide
Introduction
9
Basic Operation
9
SIMCard
9
Thermistor Probe
10
TemperatureMonitoringInterval
10
Multiple SMS Destinations
10
Alarm Delay Operation
10
AlarmDelayExample
10
Operating Modes
11
Standby Mode
11
Setup Mode
11
ConguringtheUnit
11
Run Mode
13
Stop Monitoring
13
SMS Retry Process
13
Security
14
Table of Contents
Hardware Operation
15
Power Up LED Sequence
15
LED Flash Sequences
15
Netlight LED Operation
15
Sounder
15
Battery
16
Aerial and Signal Strength
16
Real Time Clock
17
Time Zone
17
Message Groups
17
NoticationTypes
18
“Setup Complete” Message
18
“NoSMSRxd”Message
18
“Temperature Alarm” Message
19
“Summary” Message
19
“Low Battery” Message
19
Probe Errors
20
SIMCardMissing/ErrorDetection
21
Disclaimers
21
SMS Limit
21
SMS Delivery
21
Warnings
21
Troubleshooting
22
Other Information
23
Basic Specications
23
Glossary of Terms
24
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EL-SMS App User Guide - Android
Features
● Simple management of your EL-SMS devices.
Compatibility/Limitations
● CompatiblewithAndroidversions2.3.3+(API10).
● Android device must have mobile network service and the ability to send/
receivetextmessages.
App Use (App images are subject to change)
1. DownloadandinstalltheAndroidAppfromGooglePlay.
2. Open the App (see Fig. 1).
3. Add the EL-SMS device to your list by clicking the “Add logger button” at
the lower right of the screen.
4. InputtheEL-SMSdevicemobilenumber.Optionallyaddadevicename
andnotesregardingthedevice’slocation,useetc.thenpress“Save”
(see Fig. 2).
Thedevicenumbercanconsistofthefollowingcharacters:“+0123456789”and
mustbe7digitsormore.
The device name can consist of the following characters shown between the double
quote marks below:
“abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789”
Thenamecanbeuptoamaximumof16characters.Ifleftemptythedefaultname
“EasyLog SMS” will be used.
Fig. 1 Fig. 2
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App Use (Continued)
The EL-SMS device is now in your device list. (See Fig. 3).
5. Tocongurethedevice,tapthedevicenameinthelisttobringupthe
optionsmenu(SeeFig.4).
a. SETUP–AllowsyoutoentertheFullSetupmenu,seesection6below.
b. EDIT/VIEW – Edit or view the basic details of the device.
c. CHANGE ICON – Allows you to change the icon for the device to a photo
or reset it back to the default.
d. DELETE DEVICE – Removes the device from the App.
6. FullSetup
Tap the setting you wish to change (See Fig. 5).
a. Probe selection - Allows you to select the correct probe type for your
device. Select Type 2 for the standard probe (-TP model) or Type A for the
high accuracy probe (-TP+ and -PROBE-G models).
b. Temperature Scale – Choose between Celsius and Fahrenheit
temperature measurements (See Fig. 6).
c. Temperature Alarms – Set the high and low alarm thresholds you require
(See Fig. 7).
Fig. 3
Fig. 4
Fig. 5
Fig. 6
EL-SMS App User Guide - Android
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App Use (Continued)
d. AlarmDelay–Congurehowmanyreadingsmustoccurinanalarm
conditionbeforeyouarenotiedandhowmanyreadingsafterthe
temperature normalises before a new alarm condition will be sent to you.
(See Fig. 8).
e. SummaryInterval–TheintervalatwhichtheEL-SMSdevicewillsend
you information regarding its status. (See Fig. 9).
f. InputuptothreecontactnumbersthatthisEL-SMSdeviceshouldnotify,
and select which messages they will receive (See Fig. 10).
g. Pressthestartbuttontosendthecongurationmessagetothe
EL-SMS device.
7. Viewingnotications–Fromthehomepageswipeleftortap
“Notications”toviewthenoticationlist(SeeFigs.11and12).
This list contains the messages you have received from EL-SMS devices in your
list.Tapanoticationtoviewthemessagedetails.Messagescanbedeleted
bypressingthetrashcanbuttononthenotication,orbylong-pressingonthe
noticationinthenoticationlist.
Fig. 7
Fig. 10
EL-SMS App User Guide - Android
Fig. 8 Fig. 9
Fig. 11 Fig. 12
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EL-SMS App User Guide - iPhone and iPad
Features
● Simple management of your EL-SMS devices.
Compatibility/Limitations
● CompatiblewithiOSversions9.2andabove.
● Apple device must have mobile network service and the ability to send/
receivetextmessages.
App Use (App images are subject to change)
1. DownloadandinstalltheAppfromtheAppStore/iTunes.
2. OpentheApp(seeFig.1).FullSetup–Congurethedevicebytapping
the options in the list.
3. Select and enter the EL-SMS device mobile number. Optionally add
a device name then press “Save” (see Fig. 2).
4. ProbeSelection-Selecttheappropriateprobetype.SelectType2for
the standard probe (-TP model) or Type A for the high accuracy
probe (-TP+ and -PROBE-G models).
5. TemperatureScale–ChoosebetweenCelsiusandFahrenheittemperature
measurements (See Fig. 3).
Fig. 1
Fig. 2
Fig. 3
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6.TemperatureAlarms-Setthehighandlowalarmthresholds(SeeFig.4).
7.AlarmDelay–Congurehowmanyreadingsmustoccurinanalarmcondition
beforeyouarenotiedandhowmanyreadingsafterthetemperaturenormalises
beforeanewalarmconditionwillbesenttoyou(SeeFig.5).
8.SummaryInterval–TheintervalatwhichtheEL-SMSdevicewillsendyou
informationregardingitsstatus.(SeeFig.6).
9.ContactInformation–InputuptothreecontactnumbersthatthisEL-SMSdevice
shouldnotifyandselectwhichmessagestheywillreceive(SeeFig.7).
10.Pressthe“SendSMSMessage”buttontosendthecongurationmessageto
theEL-SMSdevice(SeeFig.1).
EL-SMS App User Guide - iPhone and iPad
Fig. 4
Fig. 5
Fig. 6
Fig. 7
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Introduction
The EL-SMS-2G range is a family of battery powered temperature alerts that will
sendSMS(ShortMessageService)noticationmessagestodesignatedmobile
phonenumberswheneverthetemperaturemonitoredexceedsaprogrammed
upper or lower temperature limit.
Thetemperaturelimitsalongwithothercongurableparametersaresenttothe
unitviaacongurationSMSwhichiscreatedusingthe“EL-SMS”App.
OnceconguredtheEL-SMSunitscansendperiodicsummarymessages
toconrmthattheyarerunningnormally.Summarymessagescontainthe
minimum,maximumandaveragetemperaturesincetheprevioussummary
message,alongwithahistoryofthethreemostrecenttemperaturelimitbreaches
that the unit has detected.
These products use the GSM (Global System for Mobile Communications) network
todelivertheSMSnoticationmessagesandmustbettedwithamicroSIMcard
to allow them to connect to a GSM network and register. These units use a built-in
aerial to allow communication with the GSM network.
Noticationmessagescanbesenttouptothreeprogrammedmobilephone
numbers.Eachnumbercanbeindividuallyconguredtoreceivespecicalerts,i.e.
Alarm,LowBatteryorSummarymessages.
Basic Operation
SIM Card
User Guide
TheunitsrequireamicroSIMcardtooperate.ItisimportantthatnoPINcodeis
enabledasthiswillpreventoperation.Ifnecessary,anormalmobilephonecanbe
usedtodisabletheSIMPINcodelock.Beawarethattheproductwilleraseany
existingSMSmessagesthatarealreadystoredontheSIMcard.
TheSIMcardmustbettedtooperatenormally.
All2GmicroSIMcardsshouldworkaslongasthePINcodefunctionisdisabled.
Visithttp://maps.mobileworldlive.comtocheckforGSMcoverageinyour
geographic location.
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Thermistor Probe
These units are supplied with a thermistor probe to sense temperature. The
EL-SMS-2G-TP is supplied by default with a Type 2 (Standard) thermistor probe.
TheEL-SMS-2G-TP+issuppliedbydefaultwithaTypeA(HighAccuracy)probe
and the EL-SMS-2G-PROBE-G with a Type A probe inserted into a glycol bottle.
Thethermistorprobesconnecttotheunitviathe3.5mmjacksocket.
Thethermistorprobetypecanbeselectedwhentheunitisconguredusing
the App.
Temperature Monitoring Interval
These units will take a temperature reading every minute. For this reason it may
take up to one minute before the unit responds to a change in temperature.
Multiple SMS Destinations
Theunitscansendnoticationstoamaximumofthreemobilephonenumbers.
Itshouldbenotedthatoperatinganyunitwithmorethanonedestinationmobile
phonenumberwillsignicantlyreducetheexpectedbatterylifeandmayincur
additional costs as more messages are sent.
When multiple destination numbers are used these units will attempt to send
noticationmessagestoeachphonenumber.Iftheunitisabletosuccessfully
transfer the SMS to the mobile network for at least one of the destination numbers
then it will assume that the delivery of the message was successful. Be aware
however that actual delivery of the message is reliant on the mobile network and
mobile operator’s services operating normally.
User Guide
Alarm Delay Operation
These units allow a separate pre and post alarm delay to be applied to any set
temperaturealarms.Thisisusefultopreventsendingexcessivetextmessagesif
themeasuredtemperatureisuctuatingaroundeitherthehighorlowalarmlevels.
Whenaknock-indelayisused,theseunitswillwaituntilthatnumberofconsecutive
temperature readings have all been in an alarm condition before sending a
temperaturealertmessage.Ifaknock-outdelayisused,theywillstayinanalarm
stateuntilthespeciednumberofconsecutivereadingsarealloutsideofanalarm
condition.Whentheknock-outdelayhascompleted,theywillonceagainrespond
to new alarm conditions when they occur.
Ifthealarmdelayfeatureisnotrequiredthenthedelayvaluesshouldbesettoone.
Alarm Delay Example
Considerthefollowingsetupconguration:
Lowtemperaturealarmsetat12°Cusingan“Indelay”of15andan“Outdelay”
of30.
Withthesesettingsthetemperaturemustdropbelow12°Candstaybelowfor
15minutesbeforeanalarmconditionwillberegistered.Duringthis15minute
periodifanytemperaturereadingisabove12°Cthenthedelayisreset.Thismeans
thatthetemperaturemustthenremainbelow12°Cforafurther15minutesbefore
the alarm is registered.
Oncethealarmhasbeenregistered(after15consecutiveminutesbelow12°C)a
lowtemperatureSMSnoticationwillbesent.
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Inorderforthealarmconditiontobeclearedthetemperaturemustriseandstay
above12°Cforatleast30minutes.
Operating Modes
TheEL-SMS-2Gdeviceshavethreeoperatingmodes,theseare:
Standby mode
Setup mode
Run mode
Standby Mode
Standbymodeisthemodethattheunitwillbeinwhenitisidle,i.e.whentheunit
is not being setup or running. This state consumes minimal power. A one second
pressofthe“Status”buttonwillconrmiftheunitisinthisstate.Theunitwillshow
eitherfourgreenorveredLEDashes.FourgreenLEDashesmeantheunit
isreadytobeginitsrstsetupattempt.FiveredLEDashesmeanthatthelast
attempt to set up the unit failed but it is ready for another attempt.
The unit will enter standby mode under the following conditions:
● Whenitispoweredonandtheunitisnotcongured.
● Whenitispoweredonandtheunitwasconguredbuttherealtimeclock
hasresetduetoaninterruptiontothepower(e.g.ifthebatteriesranat
during operation).
● When an attempt to setup the unit has been made and does not complete
successfully.
User Guide
● When the unit is in run mode and the stop monitoring button sequence
is pressed.
Setup Mode
ThisisthemodethatallowsacongurationSMStobesenttotheunitviatheApp.
Theunitwillnotreceiveacongurationmessageuntilyouhavefollowedthesteps
belowandtheunitisreadytoreceiveit.Ifyoutrysendingacongurationmessage
beforethis,theunitwillnotreceiveit.Thecongurationprocesscanbestartedfrom
either standby or run mode.
Conguring the Unit
● Use the App to select the parameters you require.
Note that the Apps do not save settings for each device. The Android App will
remember the settings used for the last device congured.
● IntheApp,pressthe“Start”button(Android)or“SendSMSMessage”(iOS)
at the bottom of the “Setup” screen.
● Pushthe“Status”buttonontheEL-SMSunitforvesecondsandthen
releasethebutton.TheredLEDshouldbeginashingonceeveryve
seconds. Wait until you hear a triple beep from the sounder. When this
happenstheLEDwillchangetoadoublegreenLEDasheveryve
seconds.
● TheEL-SMSunitisnowreadytoreceivethecongurationSMS.Goahead
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Issue 1
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
and press the “Send” button in the App.
● Once you hear a double beep from the sounder you know the unit has
successfullyreceivedthecongurationmessage.Iftheconguration
SMSwasnotreceivedwithintwominutesyouwillhearveshortbeeps
from the sounder to signal that the setup did not complete successfully.
● Ifthecongurationcompletedsuccessfullyyouwillreceivea
“Setup complete” SMS on the mobile device that was used to send
thecongurationmessagetotheunit.
● TheunitwillthenenterRunmodewhereitwillbeginmonitoringtheexternal
temperatureforalarmbreaches.Thiscanbeconrmedbypressingthe
status button for one second and checking that the LED’s operate as per
the LED Flash Sequences.
Please note that the unit will not respond to button pushes once the setup
sequence has started.
The length of time required for the unit to register on the mobile network can vary
andisdependentontheunithavingsucientsignal.Iftheunitisunabletoregister
withintwominutesitwillexitthesetupattempt.Thiswillbeindicatedbyveshort
beepsfromthesounderandveredLEDasheswhenthestatusbuttonispushed.
SometimestheunitmaynotbelisteningforSMSmessageswhentheconguration
SMS is sent. This could be due to delays inherent in the GSM network such as
networkoutages,oversubscription,routinemaintenancework,messagecentre
technicalissuesetc.Ifasetupattemptdoesfailyoucansimplyrepeatthesetup
process.Ifrepeatedattemptstosetuptheunitarefailingthenyoushouldcheckthat
availablesignalstrengthissucientandtherearenoknownnetworkissuesthat
User Guide
could be causing the problem.
IfasetupattemptfailedbecausetheunitdidnotreceiveavalidcongurationSMS:
1. Iftheunitwasnotpreviouslyconguredtheunitwillenterstandbymode
again.WhenthestatusbuttonispusheditwilldisplayveredLEDashes
 showingthatthelastattempttoconguretheunitfailed.
2. Iftheunitwaspreviouslycongureditwillsenda“NoSMSRxd”notication
tothemobilephonenumbersthatwerepreviouslyconguredtoreceive
“Summary”groupnotications.TheunitwillthengobackintoRunmode
usingitspreviouslyconguredsettings.
IftheunitisconguredandoperatinginRunmodeitshouldbenotedthatmaking
anewattempttoconguretheunitwillstopitmonitoringtemperature.Ifthesetup
doesnotcompletesuccessfullythenitwillreverttorunmodeagain,however,the
following parameters will have changed:
● Summarymessageswillbedelayedbyuptoveminutes.
● Temperature delay counts will be cleared.
● Low and high temperature alarm history will be cleared.
● Minimum,maximumandaveragetemperatureswillbereset.
● Anypendingbatteryloworsummarynoticationswillbecleared.
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Run Mode
FollowingasuccessfulcongurationoftheunititwillenterintoRunmode.Inthis
modetheunitcheckstoseewhetheranynoticationmessagesareduetobesent
(i.e.alarmbreach,batteryloworsummarynotications)andthenprocessesthe
noticationsinorderoftheirpriority:
● Temperature alarms have the highest priority
● Low battery alerts have medium priority
● Summary messages have the lowest priority
InRunmodethetemperatureismeasuredonceeveryminuteusingtheexternal
probe and the value is checked to see whether either the upper or lower
temperaturealarmlimitshavebeenbreached.Ifanalarmlimitisbreached(see
alarmdelayoperation)theunitwillsendanalertnoticationmessagetothe
contacts registered to receive the “alarm” group messages.
The battery condition is checked each time a temperature measurement is made.
Ifalowbatteryconditionisdetectedabatterylownoticationmessagewillbesent.
The buttons are disabled whenever the unit is actively sending an SMS.
Stop Monitoring
When the unit is in Run mode it can be put back into a Standby mode by pressing
the “Stop monitoring” button combination. This should be done whenever you want
to stop the unit from monitoring the temperature and sending alert messages.
Tostoptheunit,pressthestatusbuttonforvesecondswhilstholdingdownthe
“Stop” button for at least one second. The unit will show the green LED for three
seconds after which it will reset. The power up LED sequence will then be displayed
User Guide
andtheunitwillbeinthestandbymodeinan“uncongured”state.
To start monitoring again you will need to repeat the setup process.
SMS Retry Process
Start SMS alert
Alert success
Continue monitoring
Allow up to 2 minutes to register on mobile network
Success/Failure?
No
Yes
No
Yes
Make 2 attempts to send alert to each stored number
At least 1 SMS
delivered to network?
Was this a
retry attempt?
5 Minute holdo
period then retry
attempt.
No more retries.
Alert failure. Alert will
be dropped.
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
User Guide
SMS Retry Process (Continued)
The unit uses the retry sequence shown in the above diagram when attempting to
send either a temperature alert or battery low message:
Duringtheretryprocess,anyotherpendingnoticationmessageswillbe
postponed.
Theunitwillassumethatanoticationmessagehasbeensuccessfullydeliveredas
long as the message was successfully transferred to the mobile network for at least
one of the programmed numbers.
Ifafterfollowingtheaboveretrysequence,anoticationmessagestillcan’tbesent
tothemobilenetwork,thenthealertwillbecancelledandtheunitwillcontinue
normaloperationlookingfornewalertconditionstooccur.Ifthecancelledmessage
wasanalarmnoticationthealarmconditionmaystillbereportedinthefollowing:
1)Thealarmhistoryinthenextalarmmessage.
2)Mostrecentalarminthenextsummarymessage.
Theunitwillonlymakeoneattempttosendasummarymessage.Iftheattempt
is unsuccessful then the summary message will be cancelled. Regardless of the
outcometheminimum,maximumandaveragetemperaturedatafortheperiodwill
be reset.
1EasyLog Oce; ,
6 ,5*#,55*50
00000000000000000
00000000000000000
000000000000000000
7*77224+2+225+2972
22272292,*222292 79
2222222*25*757+5#2
752262272522922522
2
Example screen shot of encrypted text
Security
TheonlywaytochangethecongurationofarunningEL-SMSunitistophysically
gototheunittoinitiateanewcongurationsequence.Ifsecurityintheenduser
application is important then this should be considered when installing the unit.
Setting up the unit requires that someone is physically with the unit to begin the
setupsequencebypressingthe“Status”buttonforveseconds.Theconguration
message itself could be sent from any location so long as the person with the unit
canpressthebuttonincoordinationwiththepersonsendingthecongurationSMS.
Theunitwillacceptacongurationmessagefromanymobiledevicerunningthe
App.Onceasetupattempthasnished,theunitwillnolongerrespondtoincoming
messagesunlessanewsetupisattempted.Thecongurationmessagesenttothe
unit from the app is sent partially encrypted although the unit name is readable.
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Hardware Operation
Power up LED sequence
Whentheunitispoweredon,thefollowingLEDashsequenceisdisplayed:
RedLED,GreenLED,NoLED’s
LED Flash Sequences
Start up ash sequence RedLED,GreenLED-0.5seach
Status display
(standby mode)
Short push of status button.
4greenashes=Setupnotyetattempted.
5redashes=Setupattemptedbutfailed.
1.5sredLED=Lowbattery
Setup mode sequence
5 second push of status
button
1redashevery5seconds=Notreadytoreceive
SMS.
2greenashesevery5seconds=Readyto
receive SMS.
Status display (Run mode)
Push of status button
2redashes=Inalarmcondition(Highestpriority)
3redashes=Lowbattery(Mediumpriority)
1greenash=Running,noalarmconditions(Low
priority)
Stop monitoring GreenLEDonfor3sthenofor3sfollowedby
reset.
Unit“Congured”statusiscleared.
SIM Card Error 4redasheseverysecondforapproximately
10minutes.
User Guide
Netlight LED Operation
The orange Netlight status LED will show you the status of the internal 2G GSM
modulewhenitisinuse.TheashsequencesdisplayedbytheNetlightareas
follows:
O GSMmoduleispoweredo.
1 second ash GSM module is not registered on a mobile network.
2 second ash GSM module is registered on a mobile network.
Sounder
Theunitisttedwithasounderwhichisusedtoindicatevariousoperating
conditions as follows:
Ready for conguration message Triple beep
Conguration message received Double beep
No conguration message received
OR message was not compatible
with the unit
Five short beeps
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Battery
For reliable operation of the unit it is recommended that only high quality alkaline
batteries are used. This will ensure the best possible battery life.
WhentheunitisinStandbymode,thebatterystatuswillbecheckedonceevery
threeminutes.Ifthebatteryislow,theredLEDwilllightfor1.5swhenthe
“Status” button is pushed. The unit will not send a low battery alert when it is in
Standby mode.
WhentheunitisinRunmode,itwillsendalowbatteryalertwhenitdetectsalow
battery condition.
Itshouldbenotedthatthebatterycapacitywillbereducedwhentheunitis
operating at lower temperatures. Also be aware that setting multiple destination
phonenumberstoreceivenoticationmessageswilldrainthebatterymuchfaster
and as such it is recommended that only one of the programmed phone numbers
isconguredtoreceivethelowbatteryalert.
Iftheunitisnotgoingtobeusedforanextendedperiodoftimethebatteries
should be removed from the product.
Theexpectedbatterylifeatroomtemperature,sendingadailysummarymessage
anduptoonealarmnoticationperweek,isoneyear.
Thisestimateassumesthatonlyonedestinationnumberhasbeencongured.
Usingadditionaldestinationnumberswillreducetheexpectedbatterylife.
User Guide
Aerial and Signal Strength
The unit uses a built-in aerial to connect to the mobile network. The reliability of
the unit for sending messages is dependent on the signal strength available at the
locationofoperation.Thephysicallocationoftheunitwillalsoaecttheavailable
signal strength and should be considered when situating the unit.
Themostrecentsignalstrengthisdisplayedineachnoticationmessagethatis
sent by the unit. For reliable operation the signal strength should be above three
bars. Operating below this signal strength may prevent the unit from being able to
send messages. Note that the unit may not always connect to the same service
provideriftheSIMcardpermitsroamingaccess.
The following table shows how the unit will report and display 2G signal strengths.
Signal
strength
(bars)
Signal
strength
(dBm)
Signal strength
(ASU, 0 - 31)
Usability
1 -115to-107 0to3 WeakSignal/Intermittentoperation
2 -106to-99 4to7 PoorSignal/Intermittentoperation
3 -98to-87 8to13 Good / Reliable operation
4 -86to-77 14to18 Good / Reliable operation
5 -76to-53 19to31 Excellent/Reliableoperation
Failuretoregisterontoamobilenetworkwouldusuallyindicateeitherinsucient
signalstrengthorthatthemobilenetworkhasfailedtovalidatetheSIMcard(e.g.
barredorblacklistedSIMnumbers).
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Real Time Clock
The unit contains a real time clock which is used to add a timestamp to the outgoing
messages.Theclockissetautomaticallywhentheunitreceivesaconguration
message from the App.
Itshouldbenotedthattherewillbeadelayfromthecongurationmessagebeing
sent from the App to being received by the unit. This delay is largely dependent
on the mobile network and service provider and will therefore be unpredictable.
This means that the clock in the unit may lag behind the actual time of the device
usedtosendthecongurationmessagebytheamountthattheconguration
message was delayed.
Also note that the real time clock will be reset if the batteries are removed.
TheclockissetbyreconguringtheEL-SMSunitusingtheApp.
Time Zone
Outgoingnoticationmessagessentbytheunitcontainthetimezoneaspartofthe
timestampinformation.Thetimezoneissettobethesameasthelocaltimezone
settingonthemobiledevicethatisusedtoconguretheunit.
Message Groups
The message groups allow each programmed mobile phone number to receive
dierentcombinationsoftheavailablenoticationmessages.Eachmobilephone
number can be subscribed to any of the following message groups:
User Guide
● Alarms
● Low Battery
● Summary
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
User Guide
EasyLog SMS
Setup complete
05/06/2017, 09:17 (UTC+00)
Cur: +23.8 C
Sig: 4 (-80 dBm)
Bat: OK
v1.2
Type: 002
SN: 876543212345678
EasyLog SMS
No SMS Rxd
05/06/2017, 09:17 (UTC+00)
Cur: +23.8 C
Sig: 4 (-80 dBm)
Bat: OK
v1.2
Type: 002
SN: 876543212345678
Notication Types
“Setup complete” Message
The“Setupcomplete”messageisreceivedwhentheunithasbeenconguredandconrms
that setup of the unit was successful. This message contains the following information:
● Date/Timeeldforconrmationthattherealtimeclockhasbeenset.
● Current temperature.
● Signalstrengthinbars(whereoneispoorsignalandveisexcellentsignal).
● Programmedrmwareversion.
● Unit type number which is set at the factory and is used internally by the unit.
● Serial number of the unit.
“No SMS Rxd” Message
This“NoSMSRxd”messageisreceivedifasetupattemptfailsbecausenoconguration
messagewasreceived.ItisonlysentiftheunitwaspreviouslyinRunmode.Themessage
will be sent to phone numbers that are subscribed to the “Summary” message group.
Thisnoticationmessagecontainstheunique15digitserialnumberfortheunitandalso
shows the measured signal strength.
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EasyLog SMS
A1: L -17.0 F
05/06/2017, 12:15 (UTC+00)
A2: PrbErr O
A3: H +72.8 F
Sig: 4
Bat: OK
EasyLog SMS
06/06/2017, 10:00 (UTC+00)
Cur: +23.8 C
Min: -17.0 C
Max: +24.1 C
Avg: +12.4 C
A1: L -17.0 C
05/06/2017, 12:15
Sig: 4
Bat: OK
“Temperature Alarm” Message
The temperature alarm message shows a history of the last three temperature alarm conditions.
The temperature reading shown with each alarm in the history is the temperature reading taken
at the time the alarm was registered by the unit.
Thetime,dateandtimezoneinformationisshownonlyforthemostrecentalarm.High
temperaturealarmsareindicatedbythe‘H’character,lowalarmsareindicatedby‘L’.Probe
errors are shown with the message PrbErr followed by O or C for missing or broken probes.
“Summary” Message
Thesummarymessageissentattheintervalspeciedwhentheunitwascongured.
The following information is shown in the summary message:
● Theminimum,maximumandaveragetemperaturereadingssincethelast
summary interval.
● The most recent alarm condition and the date and time at which it was triggered.
● The most recent signal strength and battery status.
Notethattheminimum,maximumandaveragetemperaturereadingsareresetateach
summary message interval even if the summary message itself was unable to be sent due to
lackofsignal,networkoutageetc.
Summary messages may be delayed if the unit is sending higher priority messages such as the
temperature alarm or low battery messages.
“Low Battery” Message
The low battery message will be sent when the unit detects a low battery condition.
EasyLog SMS
Bat: Low
27/09/2018, 11:43 (UTC+00)
Sig: 4
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Example summary message with
short circuit probe error
Example setup complete message
with short circuit error
EasyLog SMS
07/06/2017, 10:00 (UTC+00)
Cur: PrbErr C
Min: ---.-
Max: ---.-
Avg: PrbErr
A1: PrbErr C
07/06/2017, 03:30
Sig: 4
Bat: OK
EasyLog SMS
Setup complete
05/06/2017, 09:17 (UTC+00)
Cur: PrbErr Closed
Sig: 4 (-80 dBm)
Bat: OK
v1.2
Type: 002
SN: 876543212345678
Probe Errors
Ifthethermistorprobegoeseitheropenorshortcircuitduringnormaloperationthis
will be reported in the alarm and summary messages as follows:
PrbErr O is displayed for a disconnected probe error (open circuit).
PrbErr C is displayed for a short circuit probe error (probably caused by a
faulty probe).
SetupComplete/NoSMSRxdmessagereporttheprobeerrorsasfollows:
PrbErr Open is displayed for a disconnected probe error (open circuit).
PrbErr Closed is displayed for a short circuit probe error.
Whenaprobeerroroccurs,theunitinternallyregistersthefollowingtemperaturefor
each condition:
OpenCircuitProbeError -51degC
ShortCircuitProbeError -50degC
Forthisreason,toreceiveprobeerroralarms,itisnecessarytohavethelowalarm
enabled.
Whenaprobeerrorconditionisdetected,themin/maxtemperaturereadingin
thenextsummarymessagewithbeshownas“---.-“,indicatingthataprobeerror
wasencounteredduringthelastsummaryinterval.Also,theaveragetemperature
reading will be shown as “PrbErr” since the average temperature reading for the
summary interval will be invalid.
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SIM Card Missing / SIM Card Fault Error
IfduringnormaloperationtheunitdetectseitheramissingorfaultySIMcard,the
unitwillashtheredledfourtimesasecondfor10minutestoindicatetheerror.
The unit will then automatically reset.
Ifthiserrorisobserved,checkthataSIMcardisttedandtheSIMcardcontacts
are clean.
Disclaimers
SMS Limit
This product does not limit the number of messages that can be sent in a given
timeperiod.Thisshouldbeconsideredwhensettinguptheunit.Forexample,ifthe
measuredtemperatureislikelytouctuatearoundtheprogrammedalertlevelthen
you should consider using the alarm delay feature to ensure that you do not receive
noticationmessageseachtimeanalarmthresholdiscrossed.Similarlywhen
youhavenishedusingtheunit,remembertousethe“Stopmonitoring”button
sequencetoensurethattheunitwillnotsendanymorenoticationmessages.
YoucanconrmthattheunithasstoppedandisinStandbymodebypushingthe
status button and checking the LEDs.
Failuretoadequatelyconguretheproductmayleadtoexcessiveoperatingcosts.
SMS Delivery
SMStextmessagingisa“storeandforward”messagingsystemwhichuses
message service centres to temporarily store messages until they can be delivered.
Whenusingthisproductbeawarethatthetextmessagingnetworkservicedoes
not guarantee delivery of the messages that are sent to it. Sent messages may
not reach their intended destination and this should be considered when planning
howthisproductwillbeusedinyourapplication.Youshouldalsobeawarethat
the delay between the unit sending a message and it being received can vary
signicantly.
Typicalfactorsthatcanaectmessagedeliveryortiminginclude:
● Available credit.
● Signal strength and quality.
● Cell tower available capacity.
● Sendingmessagesbetweendierentnetworkoperators.
● Agreements in place between network operators where roaming is used.
● Available capacity at the sending and receiving message centres.
● Network outage or planned maintenance.
● Receivingdeviceswitchedo,atbatteryorno-signal(willeventually
be discarded by the network if they cannot be delivered. The length of time
varies depending on the service provider used).
Warnings
Aseparationdistanceof20cm(7.87”)ormoremustbemaintainedbetween
theantennaofthisproductandallpersonstocomplywithFCCRFexposure
requirements.
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Troubleshooting
Problem Possible Causes Solution
My unit is not responding to button pushes. A setup attempt is underway. Wait until the setup attempt is complete and try again.
Unit has malfunctioned. Remove batteries. Wait one minute. Re-insert batteries to
restart the unit.
Flat battery. Replacebatteriesandre-conguretheunit.
A GSM operation is underway. Waituntilthenetlightstopsashingandtryagain.
I’mnotgettingsummarynoticationsanymore. Flat battery. Replacebatteriesandre-conguretheunit.
The unit has no signal. Check signal strength using a mobile phone and if necessary
re-position the unit.
Possible mobile network outage / maintenance work. Check the signal strength shown in the last summary
messagewassucientforreliableoperation.
SMS message centre issues. Normal operation will resume when the network service
disruption has ended.
Incorrectdestinationnumberenteredwhenunitwas
congured.
Check destination number in the App and ensure it is enabled
toreceivesummarymessage.Re-conguretheunitif
necessary.
SIMcardregistrationproblem. EnsurethattheSIMcardaccountisactiveandhascredit.
Itriedtosetupmyunitbutthesetuphasfailed. Insucientmobilesignal. Check signal strength using a mobile phone and if necessary
re-position the unit.
SIMcardnottted. Removebatteries,insertaSIMcardandthenre-insertthe
batteries.
Network congested delaying reception of the message. Wait and try again.
Ican’tgetmyunitintosetupmode. “Status” button has not been pressed for long enough. Ensurethe“Status”buttonhasbeenpressedfor5seconds
before being released.
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Other Information
MobileVirtualNetworkOperators(MVNO’s)resellaccesstothemobile
infrastructureofthemajornetworkoperatorsandgenerallyoertheirowncustomer
service,billingsupportsystems,marketingandsalespersonnel.MVNO’scan
typicallyoerbetterdealsthanyoumightgetthroughthemajornetworksdirectly.
Basic Specications
Thermistor probe types Type2(Standard)orA(HighAccuracy)
Thermistor probe measurement
range
-40to+125°C(-40to+257°F)
Operating Temperature Range -20to+40°C(-4to+104°F)
Resolution 0.1°C(0.2°F)
Accuracy ±0.1°C(±0.1°F)*
Temperature Monitoring Interval Once per minute
Dimensions 105x105x29mm(4.1x4.1x1.1”)
Weight (excl batteries) 128g(4.5oz)
GSM Module QuadBand2GModule
Class4(2W@850/900MHz)
Class1(1W@1800/1900MHz)
Internal Antenna Penta-band Embedded Antenna
50OhmImpedance
Linear Polarisation
3dBi Gain
VSWR<3:1
Battery Life 1Year
(at25°C,dailysummarymessagetoone
phone number)
IP Rating TheproducthasanIPratingofIP53provid-
ing the thermistor probe is connected. This
gives:
- Protection against solid bodies larger than
1mm.
-Protectionagainstwaterdropletsdeected
upto15°fromvertical.
Ifyouwishtousetheunitoutdoors,thether-
mistor probe must be connected and the unit
should be positioned in a sheltered location.
* At 25°C. See probe accuracy curve on data sheet. Important, quoted accuracy applies only when
the unit is operating within the specied operating temperature range. Thermistor probe errors are not
included and should also be taken into consideration.
Supplied ‘Type 2’ Standard Thermistor Probe
Part Number: EL-PROBE2-1.0M-TP
Supplied‘TypeA’HighAccuracyThermistorProbe
Part Number: EL-PROBEA-3.0M-TP+
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Glossary of Terms
Global System for Mobile Communications [GSM]
StandarddevelopedbytheEuropeanTelecommunicationsStandardsInstitutetodescribe
protocols for second-generation (2G) digital cellular networks used by mobile devices.
Mobile Virtual Network Operator [MVNO]
Thesearevirtualnetworkoperatorswhoresellaccesstothemajornetworkoperators’
infrastructureandgenerallyoertheirowncustomerservice,billingsupportsystems,
marketing and sales personnel.
Short Message Service [SMS]
Textmessagingserviceallowingshorttextmessagestobesentbetweendevices
connected via a GSM network.
Subscriber Identity Module [SIM]
Integratedcircuitthatsecurelystorestheinternationalmobilesubscriberidentity(IMSI)
and the related key used to identify and authenticate subscribers on mobile telephony
devices.Insimpleterms,achipwhichidentieswhoispayingthebillforanynetwork
services that are used.
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EL-SMS-2G-TP / TP+ / PROBE-G USER MANUAL
Temperature Monitor with SMS Alerts