Digi-Sense ThermoLogR 93410-50 User manual

Cole-Parmer Instrument Co.
625 East Bunker Court
Vernon Hills, Illinois U.S.A. 60061-1844
[phone]
[phone] (Fax)
800-323-4340
www.coleparmer.com
e-mail: techinf[email protected]
A-1299-0876
Edition 02
ThermoLogR
RTD THERMOMETER
MODELNO.93410-50

CERTIFICATE OF
CONFORMANCE
This thermometer was calibrated using
equipment traceable to the National Insti-
tute of Standards and Technology (NIST).
This instrument conforms to
DIN IEC-751 revised to ITS-90.
The accuracy of the thermometer at the
time of calibration was within specifications
stated in the operating manual.
ModelNo.:__________________________
Serial Number:______________________
Date placed in service:________________
To purchase an NIST certificate of trace-
ability with test data and test date for meter
and probe, please contact your dealer or:
Cole-Parmer Instrument Company
625 East Bunker Court
Vernon Hills, Illinois USA 60061-1844
Toll-free: 800-323-4340

1
INTRODUCTION
Thisversatilehand-heldinstrumentprovideshighly
accuratetemperaturemeasurements in Celsius or
Fahrenheit using a 100 ohmplatinumRTD,withan
alphaof0.003850 or 0.003916.
This instrument covers the extended measuring
rangeof –200 to 1210°C (–328 to2210°F).
Theinstrument is designed foreasyoperationand
includesthe followingfeatures:
• Operator selectionof temperature scale
• Resolution of 0.01° from –50.00°C to 99.99°C
(–58.00°Fto99.99°F)
• LCD with three four-digit displays
•3-pincircularconnectorinput(mate to Switchcraft
TA3F plug)
• Hold feature for temporarily retaining areading
• Two-point field calibration capability
• Low battery warning
• Stores or logs upto 1000 readings with real-time
markers

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• Scrolls through all stored readings
• Displays MIN and MAX readings
• Interfaces with optional HEWLETT PACKARD®
infraredprinter or optional RS-232-Cadapter
• Prints temperature and timeof reading
• Built-in tilt stand for easy hands-free operation
SAFETY PRECAUTIONS
VOLTAGES PRESENT AT
THE RTD MAY ALSO BE
PRESENT AT THE BATTERY TERMINALS.
ALWAYS DISCONNECT THE RTD WHEN
CHANGINGBATTERIES.
THIS INSTRUMENT IS
DESIGNED TO ACCEPT
LOWLEVELSIGNALSSUPPLIEDBYSTANDARD
100 OHM PLATINUM RTD’S. UNDER NO
CIRCUMSTANCES SHOULD THE INPUT
VOLTAGE EXCEEDTHE SPECIFIED 10V RMS.
DO NOT USE OR STORE
THIS INSTRUMENT IN
MICROWAVE OVENS OR ANY ABNORMALLY
HOT OR COLD AREAS.
WEAKBATTERIES SHOULD
NOT BE LEFT IN THE
INSTRUMENT. DEAD BATTERIES CAN LEAK
AND CAUSE DAMAGETO UNIT.
WARNING
DANGER
CAUTION
CAUTION

EU Declaration of Conformity
Name of Apparatus: RTD Logger
Model Number: 93410-50*
Description of Apparatus:Electronic thermometer
using an RTD probe
Barnant Company declares that the above model is
in conformity to the following harmonized standards
and directives:
Applicable Applicable Manufacturer’s
Directives Specifications Report Number
73/23/EEC EN61010-1/A2:1995 TR0076
93/68/EEC
89/336/EEC EN61326-1/A1: 1998 TR0076
92/31/EEC
93/68/EEC
The last two digits of the year in which the current
configuration of the above model was assessed per
the LowVoltage Directive is :00.
*Evaluated for EMC as part of a system using the
AC Adapter, Model Number 91100-55.
Manufacturer:
Barnant Company Division
Cole-Parmer Instrument Company
28W092 Commercial Avenue
Barrington, IL 60010-2392
USA
Tel.:[phone]
Manufacturer’s Signature:
JamesW.Doll Date
VicePresident, Engineering
19 December, 2000
3

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SPECIFICATIONS
RTD PROBES
Impedance: 100ohm @ 0°C (32°F)
Sensitivity (alpha): 0.003850 or 0.003916 ohm/
ohm/°Cselectable
Accuracy: ±0.06°F;±0.03°C at 0.01°resolution
±0.1°at0.1°resolution
±1°at1°resolution
LOGGER
Linearization:Conformsto DIN IEC751, revised
toITS-90
Input Protection:10Vrms
Display Update:0.6 secondsper update
Connector: 3-pin circular connector input (mate
toSwitchcraftTA3F plug)
Battery
Size: Two AA, 1.5V alkaline ANSI-L40,
IEC-LR6
Life: >300hourscontinuous,typical
Display: LCD with 0.4 in high characters main
readout and 0.2 in high characters secondary
displays, 4 digits each display plus various
annunciators.
Temperature/Humidity Range
Operating:
StatedAccuracy: 10°Cto40°C
(50°Fto 104°F)
UsefulRange: 0°Cto 40°C
(32°Fto 104°F)
Storage: –10°Cto60°C
(–14°Fto 140°F)
Humidity: 10%to 90%
(non-condensing)

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Dimensions
3 cm D x 8.4 cm W x 15.8 cm H
(1.2 in x 3.3 in x 6.2 in)
Weight with batteries:227 grams (8 ounces)
Ingress protection: MeetsIEC-529 IP-54 fordust
andwaterresistant enclosures.
Compliance: ForCE Mark:
EN61326-1/A1:1998
(EU EMC Directive)

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BATTERY INSTALLATION AND
REPLACEMENT
VOLTAGES PRESENT AT
THE RTD MAY ALSO BE
PRESENT AT THE BATTERY TERMINALS.
ALWAYS DISCONNECT THE RTD WHEN
CHANGING BATTERIES.
WEAKBATTERIES SHOULD
NOT BE LEFT IN THE
INSTRUMENT. DEAD BATTERIES CAN LEAK
AND CAUSE DAMAGETO UNIT.
CAUTION
DANGER

7
If battery indicator turns on, battery life is
approximately8 to 10hours.The batteryindicator
will start blinking with less than 1 hour of life
remaining.
ATTHIS POINT,BATTERYMUSTBE CHANGED.
IFBATTERYVOLTAGEGOESTOOLOW,DISPLAY
WILL GO BLANK.
SeeSPECIFICATIONS forbattery type.
1. Before changing battery,turninstrumentoffand
disconnectprobe.
2. Loosen screw and lift battery cover off back of
case.
3. Removethe two AA batteries.
4. Insert two newbatteries, observing polarity.
5. Install cover and tighten screw.
AC ADAPTER
An optional AC adapter can be used for power to
conserve batteries.The adapter is not a charger
andwillnot charge batteries.Theadapterconnects
tothe bottomofthethermometer.Whentheadapter
isconnected,the batteriesaredisconnected.Refer
to the ACCESSORIES section for adapter
information.

8
CONNECTING AN RTD
Note:Besureyourinstrumentsettingmatchesthe
RTDyouare using (alpha of 0.00385or0.003916).
See SELECTING RTD SENSITIVITY (ALPHA)
on page 14.Insert the 3-pin plug into the mating
connector on the top of the instrument.

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10

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12
QUICK SETUP
Note:ReviewSAFETYPRECAUTIONSonpage3.
1. Installbatteries.
2. ConnectRTDprobe.
3. PresstheON/OFFkey.Thethermometerperforms
a self-test and all display digits and indicators,
as shown below, should remain on for
approximatelyonesecond.
The clock will remain on for about three seconds.
4. Use SETUP to select the correct sensitivity
(ALPHA) and various other options.Use ▲or
▼to makeselections, toenterselectionsand
go to next step.

13
If a probe has not yet been connected to the
instrument, you will see this display:
This message also appears if a probe is broken.
Nomeasurementscanbemadewhilethiswarning
isdisplayed.
RESET FACTORY DEFAULTS
Press and hold CLEAR and SETUP at power on
until “CLr”shows in the display. Then release
CLEAR andSETUP.Press anykeyto continue.

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COMPLETE SETUP PROCEDURE
Thesetupfunctionscrollsthroughaseries of steps
forselectingprobesensitivity(alpha),resolution,filter
rate, setting the real-time clock, selecting the line
frequencyandaccessingtheLogsub-menuandthe
Print sub-menu.Either the complete setup can be
runasdescribedbelow,orthesetup canbeinitiated
andterminated at anystep.TheLogsub-menuand
thePrintsub-menucanbeaccessedwithoutgoing
through the complete setup.These variations are
coveredin the followingprocedures.
NOTE
Settingsselected in theSetupprocedurearestored
in memory and will remain even after power is
turned offor while batteries are beingreplaced.
Press the SETUP key. The lower left display will
show either the time of day or“OFF”and it will be
flashing.
SELECTING LOWER DISPLAY MODE
Press the MAX ▲▲
▲▲
▲key or MIN ▼▼
▼▼
▼key to toggle the
lowerdisplaybetween showingthetimeofdayand
showing minimum and maximum temperature
values.Pressthe HOLD keyto advanceto the
next step in the setup sequence.
SELECTING RTD SENSITIVITY (ALPHA)
PresstheMAX ▲▲
▲▲
▲keyorMIN ▼▼
▼▼
▼keytoselecteither
0.003850 (3850 flashing) or 0.003916 (3916
flashing).The lower left display will read “ALPH”.
When correct RTD sensitivity is flashing, press
the HOLD key to advance to the next step in
thesetup sequence.
TEMPERATURE RESOLUTION
Therearethree choices fortemperatureresolution.
The first choice is with 0.01°resolution selected:
the thermometer will automatically range to show

15
thegreatestpossibleresolution.Thenextchoice is
0.1°resolution:thethermometer willautomatically
range between 0.1°and 1°as required.The final
choice is 1°resolution: the display will remain in
thisresolution forall displayedtemperatures.
When0.01°or 0.1°resolutionisselected,adecimal
pointwillappearintheuppernumericaldisplay.When
1° resolution is selected, no decimal point will be
present.
The upper display will show 0.01, 0.1 or 1 and it
will be flashing.Press either MAX ▲▲
▲▲
▲keyor MIN ▼▼
▼▼
▼
key to change resolution, then press the HOLD
to advance to the next step in the setup
sequence.
FILTER RATE
Thefilterratecanbeset to OFF,Loor Hi.Thisrate
is changed to smooth out fluctuations in the
readings. Normally this would be set to OFF. If
readingsare unstable,try changing toLo or Hi.
Thelowerleft displaywillread“FILt”andthe upper
displaywillflasheitherOFF,Lo or Hi.Usethe MAX
▲▲
▲▲
▲key or MIN ▼▼
▼▼
▼key to switch the filter rate, then
pressHOLD keyto store therateandcontinue
setup by setting the real-time clock.
SETTING REAL-TIME CLOCK
1. When setting the real-time clock, the right two
digits in the lower left display will be flashing.
Use the MAX ▲▲
▲▲
▲key or MIN ▼▼
▼▼
▼key to adjust the
flashingdigits to the desiredminute setting.
2. Press HOLD key to lock in the minutes and
advanceto the hours setting.
Hoursare setinthe24hour timesystem.Therefore,
timeafter 12:59 pm requires12 to beaddedto the
time.Forexample,3:00PM is(3+12)=15:00 hours.

16
3. The left two digits in the lower left display will
beflashing.Usethe MAX ▲▲
▲▲
▲keyor MIN ▼▼
▼▼
▼key
toadjust the flashing digitsto the desiredhour
setting.
4. Pressthe HOLD keyto storethehoursand
advanceto themonth setting.
5. TheMO annunciator will be onandthe left two
digitsin the lowerright displaywill beflashing.
Use the MAX ▲▲
▲▲
▲key or MIN ▼▼
▼▼
▼key to adjust
theflashing digits to thedesired month setting
(1 to 12).
6. Press the HOLD key to store the months
and advance to the day setting.
7. The DAY annunciator will be on and the right
two digits in the lower right display will be
flashing.Use the MAX ▲▲
▲▲
▲key or MIN ▼▼
▼▼
▼key to
adjust the flashing digits to the desired day
setting (1 to 31).
8. Press the HOLD key to store the day and
advanceto the yearsetting.
9. TheYR annunciatorwill beonandthe twodigits
inthelowerleft displaywillbeflashing.Usethe
MAX ▲▲
▲▲
▲keyorMIN ▼▼
▼▼
▼keyto adjust the flashing
digitsto the desiredyearsetting(2000to2063).
10. Press the HOLD key to lock in the year.To
setup the logor printfunctions proceed tothe
followingparagraphs.
LINE FREQUENCY SELECTION
Formaximumnoiserejection,itispossibleto select
one of two line frequency settings. This selection
should be based on the local mains power line
frequencyofeither 50 Hz or 60 Hz.Forexample,all
of North America is 60 Hz, while Europe is 50 Hz.

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The lower left display will show “LINE”while the
upper display is flashing either 50 or 60.Use the
MAX ▲▲
▲▲
▲key or MIN ▼ ▼
▼ ▼
▼ key to adjust the flashing
digitsto the desiredline frequency setting.
Press the HOLD key to lock in the line
frequency.This completesthebasicoperationsetup
andreturns tonormaloperation.
LOG SETUP
TheLogsub-menuis usedtosetthe time intervals
betweenthelogged readings.The timecan be set
from 1 second to 60 minutes. Once the log
sub-menu is setup, logging can be toggled ON or
OFF by pressing the LOG key. When logging is
turned ON, it will continue until turnedOFFor1000
logs have occurred at the entered rate. The first
1000logs are retained.
1. Anytime while in SETUP, press the LOG key.
The LOG annunciator will be on and the
presentlyset timeinterval(defaultisonesecond)
will be displayed in the lower left
display.The two right digits represent seconds
andwill be blinking.
2. Use the MAX ▲▲
▲▲
▲key or MIN ▼▼
▼▼
▼keys to adjust
the “seconds”as desired. Press the HOLD
keytostoresettingandadvanceto“minutes”
setting.
3. Usethe MAX ▲▲
▲▲
▲keyorMIN ▼▼
▼▼
▼keystoadjust the
“minutes”asdesired.Press the HOLD keyto
storesetting.Thiscompletes the Logging setup.

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PRINT SETUP
ThePrintsub-menuisusedtosetthetimeintervals
betweenthe readings being senttotheprinter.The
default rate is once every three seconds.The time
can be set from 3 seconds to 60 minutes.Oncethe
printsub-menuissetup,printingcanbetoggledONor
OFFbypressing thePRINT key.Inaddition, thedata
rate for theinfraredRS-232-Coutputcanalsobeset.
1. Anytime the PRINT key is pressed while in
SETUP, the PRINT annunciator will be on and
the presently set time interval (default is three
seconds) will be displayed in the lower left
display.The two right digits represent seconds
andwill be blinking.
2. Usethe MAX ▲▲
▲▲
▲keyand/orMIN ▼▼
▼▼
▼keystoadjust
the “seconds”as desired. Press the HOLD
key to store setting and advance to the
“minutes”setting.
3. Usethe MAX ▲▲
▲▲
▲keyand/orMIN ▼▼
▼▼
▼keystoadjust
the “minutes”as desired. Press the HOLD
key to store setting and proceed to the data
outputrate.
4. UsetheMAX ▲▲
▲▲
▲keyand/orMIN ▼▼
▼▼
▼keystoscroll
through the available data output rates of HP,
300, 600, 1200 or 2400 (use HP for the
HEWLETT-PACKARD infrared printer). Press
the HOLD key to store setting and end the
setup.The data output rates of 300, 600, 1200
and2400areforusewiththeoptionalinfraredto
RS-232-Cadapter.
SELECTING INDIVIDUAL PARAMETERS
The RTD sensitivity, resolution, filter update rate,
real-time clock and line frequency can be set
individuallywithoutperformingthe complete setup.
First press the SETUP key, then repeatedly press
the HOLD key until the desired function is
displayed.Usethe ▲▲
▲▲
▲▼▼
▼▼
▼keysto changethefunction
and press the HOLD key to store setting.