EMIT 50557 Installation guide

TB-6520 March 2010 Page 1 of 7
Surface Resistance Test Kit
Operation and Maintenance
Figure 1. Item 50557 Surface Resistance Test Kit
Description
The Surface Resistance Test Kit is a portable, accurate,
and versatile battery operated instrument designed
to measure resistance between two points (RTT) and
resistance to ground (RTG) in accordance with ANSI/ESD
S4.1 including:
• Resistancemeasuringaccuracy±10%
(E11&greater±20%)
• Resistancerange<1.0x10E3ohmsto>10E12ohms
• Opencircuitvoltagesof10and100volts±5%
• Electrificationperiodof15seconds
• Electrodes(two)5pounds±2ozwith50-70durometer
conductive pads
In addition, the Meter measures ambient temperature (in
degrees Fahrenheit and Celsius) and relative humidity.
Voltage set to “Auto”, will measure at 10 volt automatically
switchingto100voltsifmaterialbeingtestedis>10E5
ohms. No switching test voltage is necessary.
The Surface Resistance Test Kit is referenced and
designed to be used to make measurements in accordance
with the test methods in:
• Worksurfaces-ANSI/ESDS4.1Worksurfaces
• ComplianceVerification-ESDTR53-Resistance
Measurements
• Floors-ANSI/ESDS7.1-Resistive
 CharacterizationofMaterialsFloor
Materials
•Footwear-ANSI/ESDS9.1-Footwear-Resistiv
Characterization
• Garments-ANSI/ESDSTM2.1Garments
• Seating-ANSI/ESDSTM12.1-Seating-Resistive
Measurement
• Floor/Footwear-ANSI/ESDSTM97.1-FloorMaterials
 andFootwear-ResistanceMeasurementinCombination
with a Person
• Workstations-ESD-ADV53.1-ESDProtective
 Workstations
Versatility:
Measures RTT, RTG or Resistivity (requires optional
Resistivity Attachment, item 50560)
•Quick Checks -Surfaceresistanceexponentnumber
illuminates immediately i.e. 8 = 10E8 ohms or
100,000,000 ohms
• Compliance Verifications of Installed Products
-Surfaceresistanceexponentnumberilluminates
immediately and displays Temperature and Relative
Humidityduring15secondelectrificationperiodmaking
numerous measurements and calculations to then display
mantissa i.e. if LED displays 8 and LCD displaying 7.14
asmantissa=7.14x10E8ohmsor714,000,000ohms
• Test Lab Evaluation of Product-Displaysameas
Periodic Check above
The Surface Resistance Test Kit is NIST calibrated and
items available are:
Made in America
©2010DESCOINDUSTRIESINC.
EmployeeOwned
Model Description Power
50557 SurfaceResistanceTestKit 2xAABatteries
50560 Resistivity Attachment N/A
Inspection
Remove the Meter from the carton and inspect for damage.
Each Surface Resistance Test Kit should include the
following:
1 Protective carrying case
1 Meter
2 Test leads
2 5-poundelectrodes
2 AA alkaline batteries
1 Certificate of Calibration
Properly store the Meter and component assemblies when
not in use.
TECHNICAL BULLETIN TB-6520
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com

TB-6520 Page 2 of 7
ESD Control items should be tested:
A. Prior to installation to qualify for listing in user’s ESD
control plan approved ESD control items
B. Duringinitialinstallation
C. For periodic checks of installed products as part of ESD
control plan compliance verification plan
“A Compliance Verification Plan shall be established
toensuretheOrganization’sfulfillmentofthetechnical
requirements of the ESD Control Program Plan. Process
monitoring (measurements) shall be conducted in
accordance with a Compliance Verification Plan that
identifies the technical requirements to be verified, the
measurement limits and the frequency at which those
verifications shall occur. The Compliance Verification Plan
shall document the test methods and equipment used
for process monitoring and measurements. If the test
methodsusedbytheOrganizationdifferfromanyofthe
standards referenced in this document, then there must
be a tailoring statement that is documented as part of
the ESD Control Program Plan. Compliance verification
records shall be established and maintained to provide
evidence of conformity to the technical requirements. The
test equipment selected shall be capable of making the
measurements defined in the Compliance Verification Plan.”
(ANSI/ESDS20.20-2007section7.3)
Electrification Period
The Surface Resistance Test Kit provides the proper
electrificationperiodof15secondsperANSI/ESDS4.1,
afternumerousreadingsandcalculationsareexecuted,
then displays surface resistance mantissa measurement
(Note: most analog type meters display measurements
instantaneously).
WhentheTestButtonisdepressed,theliquidcrystal
display (LCD) will indicate:
• TemperatureindegreesFahrenheit(tolerance±5°F,
typical)
• TemperatureindegreesCelsius(tolerance±3°C,typical)
• Humidityaspercentage(from5%-95%tolerance,±10
typical)
• Surfaceresistancemantissa(withexponentdisplayedvia
illuminated LED, measurement in ohms)
Measurement being displayed is identified by the illuminated
functionLED.Thesurfaceresistanceexponent(orpowerof
number) is immediately illuminated and remains illuminated
measuring the range the surface resistance in ohms.
Reference Literature
In addition to those noted above:
ANSI/ESDS20.20-DevelopmentofESDControlProgram
ESDADV1.0-GlossaryofTerms
ANSI/ESDS6.1Grounding
These documents can be obtained directly from the
ESDAssociation,7902TurinRd.,Suite4,Rome,NY
13440-2069,(315)339-6937orwww.esda.org.
Otherstandardsareavailablefromtheagencieswho
producethem.MIL-HDBK263A,EIA-IS-5-A,ASTM-F-150,
EN100015,andJESD625-A.
Features
©2010DESCOINDUSTRIESINC.
EmployeeOwned
A. LED Displays:Surfaceresistanceexponentisdisplayed
via light emitting diodes illuminating 1/8” high number.
Thereare12LEDsdisplayingsurfaceresistanceexponent
measurement. They are color coded for quick checks:
Exponent Color
 <3,3 Red
 4,5 Green
 6,7,8 Blue
 9,10,11 Green
 12,>12 Yellow
Five Function LED’s identify the measurement being
displayed(seeBbelow).
• Whenbatteryvoltagedropstoapproximately2volts,one
of the Function LED’s to the right of the red pushbutton
switch will begin to flash, indicating the need to replace
batteries.
B. Liquid Crystal Display (LCD): Mantissa is displayed via
9/16"highliquidcrystaldisplayandprovideseasytoread
resistance (or resistivity) measurements.
WhentheTestButtonisdepressed,theLCDwillindicate:
• TemperatureindegreesFahrenheit
• TemperatureindegreesCelsius
• Humidityaspercentage
• Surfaceresistancemantissa(withexponentdisplayedvia
LED, measurement in ohms)
Figure 2. Features of the Surface Resistance Meter
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com
A
B
C
D
E
F
G

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Surfaceresistanceohmvaluesareexpressedwitha
mantissaandexponentorpowerofthenumber.For
example,if“8”isilluminatedbyitsLEDandtheLCD
displaysamantissaof“7.14”,themeasurementis7.14x
10E8 ohms or 714,000,000 ohms
If surface is over 10E12 ohms, the following will appear:
• “1____”ontheLCDdisplayindicateOverrangeorthatthe
readingexceedsthedisplaycapabilities
C. Test Button: This red button activates electrical power
totheMeter.Theexponentorpowerofthenumberis
displayed immediately with LED illuminating number. If “8”
is illuminated, the measurement is in the 108or 10E8 ohm
range. To make a measurement in accordance with
ANSI/ESDS4.1,thebuttonistobedepressedfor10-20
seconds for the unit to make numerous readings and
calculations. (Testing in accordance with ANSI/ESD S4.1
requires15secondsofelectrification;incontrast,most
analog type meters display measurements instantaneously.)
The LCD will display temperature (F), then temperature
(C), then relative humidity, and then the surface resistance
mantissa.Forexample,iftheLCDdisplaysamantissaof
“7.14”, and “8” is illuminates by its LED, the measurement is
7.14x10E8 ohms or 714,000,000 ohms.
Duringtheentireperiod,surfaceresistanceexponentwillbe
displayed by LED illuminating number.
D. Override Test Voltage Button:Wheninthe“up”
position, during resistance portion of test, Meter will
automatically switch to the correct voltage for the resistance
range. LED will illuminate noting selected voltage.
Material10E5 ohms or less should be measured at 10
volts.Material10E6ohmsorgreatershouldbetested
at 100 volts. The button is a switch, which if depressed
will override automatic voltage selection and test will be
performed at 10 volts regardless of resistance level.
E. Jacks:OneendofTestLeadshas3.5mmplug(fits
Meterleftjack).The3.5mmplugisshielded(identified
byinsulatedtipandbarrelblacklead)-seeRTGtest
procedure: Per ANSI/ESD S4.1 “The sensing lead of the
resistance meter shall be connected to groundable point.”
OneendofTestLeadhasstandardbananaplug(fits5#
Electrode jack).
F. AA Battery Compartment.
G. Resistivity Parallel Electrodes Attachment.
(optional Item number 50560)
Cleaning
Per ANSI/ESD S4.1 “Clean the electrodes with a minimum
70%isopropanol-watersolution.”Makesureconductive
pads are dry prior to use.
See specific product test standard for test lab specimen
cleaninginstructions.PerANSI/ESDS4.1Worksurfaces
“The test specimens and electrodes shall be cleaned twice
withaminimum70%isopropanol-watersolutionusinga
clean,low-lintingclotheachtime.”(Note:thenconditioned
for 72 hours, minimum).
For installed product periodic testing, do not clean surfaces.
However, if any measurements lie outside acceptable
range,thencleanthesurfaceandre-test(Note:for
worksurfaces, use an ESD cleaner not containing silicone).
Besurethesurfaceisdrybeforetesting.
Periodic maintenance-Theareasurroundingthecable
jacks at the top end of the meter should be wiped with a
clean cloth moistened with alcohol to remove skin oils that
will accumulate and affect the accuracy at high resistances.
Thefrequencyofcleaningwilldependonusage;oncea
monthwouldbeagoodstartingpoint.Otheritemsthat
should also be cleaned in this fashion are the cable jackets
and the resistivity attachment, if included.
Power Requirements
The Meter is powered by two replaceable alkaline AA
batteries.
Battery Replacement
Depress buttons on both sides of bottom end cap of meter
housing. Remove cap, press on right edge of protruding
battery door, unlatching it, and swing door open. Carefully
replace batteries with alkaline Type AA. Polarity must be
correct or damage may occur. Close battery door and
re-installbottomendcaponmeterhousing.
Test Procedure
General Guidelines:
• Useboth5PoundElectrodesforRTT
• Useone5PoundElectrodeandblacksensingleadto
equipment ground to groundable point for RTG
• UseoptionalResistivityAttachment(removingleads&
electrodes) for Resistivity measurements
• Ensurethatitembeingmeasurediselectricallyisolated
(i.e. placed on an insulative surface) as Meter will
measure lowest resistance path
• EnsurethattestleadsareseparatedorMetermay
measure lower resistance path
• Whenusing5PoundElectrodes:
 • Placenocloserthan2"fromedgeofsurfacebeing
measured.
 • Placenocloserthan3"toanygroundablepoint
 • Place5PoundElectrodesabout10"apartforRTTof
  worksurfacesandabout3'apartforRTTofflooring.
 • Preferredplacementsinclude:mostcommonlyused
surface portion, most worn, center, and furthest from
groundable point.
• Ifsurfacehassections(likefloortilesorgarmentpanels),
forRTTplacea5poundelectrodesondifferentsections
• CleansurfaceforTestLab,butdonotinitiallyclean
surface for installed products (if fails, clean and retest).
• OnlyuseanapprovedESDcleanerandallowtodryprior
to testing.
• LayMeteronsurface;holdinginhandcancause
measurent distortions.
©2010DESCOINDUSTRIESINC.
EmployeeOwned
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com

TB-6520 Page 4 of 7
Test Lab Test Procedure Guideline
FortestlabuseofESDWorksurfaces,FloorMaterials,
Footwear, Garments, or Seating, best advice is to follow
procedures in applicable ESD Association standards (see
above) which include details regarding:
• Cleaning(ForexampleperS4.1“Thetestspecimensand
electrodesshallbecleanedtwicewithaminimum70%
isopropanol-watersolutionusingaclean,low-lintingcloth
each time). Allow to dry.
• Environmentalchamber(ForexampleperS4.1control
relativehumidityto12±3%RHand50±5%RHand
temperatureto23±1degreesC)
• Specimensupportsurface(ForexampleperS4.1
greaterthan1.0x10E12ohmssuchasPMMA,PTFEor
polycarbonate)
• SpecimenPre-Conditioning(ForexampleperS4.1at23
±1degreesC;3specimensat12±3%relativehumidity
for72hoursminimum,and3specimensat50±5%
relative humidity for 72 hours minimum)
• ReportingTestResults,forexampleperS4.1Reporting
Test Results, Report:
• Minimum,medianandmaximumreadingsforboth
resistance-to-groundablepointandpoint-to-point
resistance in ohms at low relative humidity
• Minimum,medianandmaximumreadingsforboth
resistance-to-groundablepointandpoint-to-point 
resistance in ohms at moderate relative humidity
• Temperature
• Relativehumidity
• Actualdurationofconditioning
• Testequipmentused
Periodic Checks of Installed Product Test
Procedure Guideline
The ESD Association lists test procedures and
troubleshootingtipsinComplianceVerificationESDTR53.
Werecommendthisdocumentbepurchasedfrom
www.ESDA.org
Measure RTG Resistance to Ground
Test Procedure in reference with ANSI/ESD S4.1 section
6.4PeriodicWorksurfaceTesting:
• Donotcleanthesurface
• Removefromthesurfaceonlythoseitemsthatmight
interfere with the test.
• ESDsensitivedevicesshallalsoberemoved
• Theblacksensingtestleadwithshieldedplugshouldgo
to equipment ground or a groundable point
• UseoneElectrodeonothertestleadandplaceElectrode
the farthest convenient point on the surface
• PressbuttonandholdTestButtonuntilmeasurementis
displayed
• PerformadditionalmeasurementsplacingElectrodeon
the most commonly used or most worn area
If measurement is outside acceptable limits, clean surface
and retest to determine if cause of failure is insulative dirt
layerortheESDcontolitem.Note:UseanESDcleaner
containing no insulative silicone.
Measure RTT Resistance Between Two Points
on the Surface
• Donotcleanthesurface
• Removefromthesurfaceonlythoseitemsthatmight
interfere with the test.
• ESDsensitivedevicesshallalsoberemoved
• Usetwo5PoundElectrodes,placeinthemostcommonly
usedportionofthesurface10"apart(2"fromanyedge,
3"fromanygroundablepoint)forworksurfaceand3'for
flooring
• PressTestbuttonandholdButtonuntilmeasurementis
displayed
• Ifthemostusedportionisnotobvious,usetwopoints
near the center of the surface
If measurement is outside acceptable limits, clean surface
and retest to determine if cause of failure is insulative dirt
layerortheESDcontolitem.Note:UseanESDcleaner
containing no insulative silicone.
©2010DESCOINDUSTRIESINC.
EmployeeOwned
Figure 3. Setting up for RTG testing.
10”
Figure 4. Setting up for RTT testing. (Electrodes are to be
about 10" apart for worksurfaces and about 3' for flooring)
Reporting and Using Test Results
Differentstandardshavedifferentrequirements;use
requirements as specified in user’s ESD control plan.
Examplesare:
Per ANSI/ESD 4.1 (worksurfaces), Report:
• RTGmaximumandminimumvaluesmeasuredfor
resistance-to-ground
• RTTmaximumandminimumvaluesmeasuredfor
point-to-pointresistanceinohms
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com

TB-6520Page5of7
Per ANSI/ESD 7.1 (Floor) Report:
• RTGallvaluesinohmsforresistancetoground
• RTTallvaluesinohmsforpoint-to-pointresistance
• Voltagelevel
• Testdate
• Temperature
• Relativehumidity
• Testequipmentused
Summarizetestdatabyreportingminimum,maximum,
median, and mean values obtained. Include a diagram
showingapproximateelectrodepositionsandground
connections used.
Recommended Frequency of Compliance
Verification Periodic Checks of ESD Control
Items
PerESDTR53ComplianceVerificationofESDProtective
Equipment and Materials ANNEX A “Each user will need
to develop their own set of test frequencies based on the
critical nature of those ESD sensitive items handled and
the risk of failure for the ESD protective equipment and
materials.
Note: “The frequency of periodic testing is normally
specified in corporate operating procedures. …The
frequency of testing is driven by the amount of risk
exposurethatcanoccurbetweentests.For,example,what
is the quantity of product handled between test periods?”
(See ESD Handbook ESD TR20.20) However, a common
guide would be:
• Worksurface-atleastquarterly(seeESDTR20.20
section5.3.1.13Periodicverificationtesting)
• Footwear-“Incominginspectiononalotsamplingbasis
should be performed for all static control footwear.” (see
TR20.20section5.3.3.4Testing)
• Floor -(SeeESDTR20.20section5.3.4.5Performance
Monitoring) Test methods, standards, and specifications.
“Typically, once qualified, floors may use simple
resistance checks to ensure the flooring does not change.
The frequency of testing is also a consideration. Some
materials, such as floor finishes, may require more
frequent testing because of their lack of permanency.”
[ESDTR20.20section5.3.4.15TestMethods,
Standardsm and Specifications
• Seating-“Therecommendedelectricalresistancerange
forseatingislessthan1x10E9ohmsastestedin
accordance with ANSI/ESD STM2.1. This value should
be during acceptance testing, installation and periodically
thereafter.”(seeESDTR20.20section5.3.5.3Testing)
• Garments-“Tomaintainprocesscontrol,itisimperative
that the garment be tested per ANSI/ESD STM 2.1. The
point to point and sleeve to sleeve resistance test should
bemade.”(seeESDTR20.20section5.3.13.3.1.8
Periodic Testing)
Surface Resistivity
Theoretically Resistivity is 10 times greater than Resistance,
i.e. a material that measures 10E7 ohms RTT, Surface
Resistivity should measure 10E8 ohms/square.*
Ref: ANSI/ESD S11.11 section 12.0 Conversion to
Resistivitystates,“Whenitisappropriatetoconverta
resistance obtained by this test method to an equivalent
resistivity in ohms per square, multiply the resistance
measurements obtained by this method by 10. The
conversion factor of 10 is derived from the geometry of the
electrode assembly.”
No conversion is required with the Surface Resistance Test
Kit. The Meter incorporates provision to install optional
Resistivity Attachment which has parallel electrodes
on bottom of the unit to make direct surface resistivity
measurements. These parallel electrodes allow for
measurement of resistivity or when quick testing without the
useof5poundelectrodesisdesired.
*Note: Per ESD Association the proper unit of measurement
of resistivity is ohms or even though. ANSI/ESD S11.11
uses ohms/square.
Battery Life:Approximately1,500measurements
Resistivity Electrodes: Two parallel conductive silicone
rubber electrodes (optional item)
External Electrodes:Two5-pound(±2oz)electrodes,2.5"
in diameter, complies with ANSI/ESD S4.1
Display:One3.5digit.500”LiquidCrystalDisplay(LCD)
Display and seventeen Light Emitting Diodes (LED’s)
illuminateexponentnumbersandthefunctionbeing
performed.
*Accuracy:Resistancemeasurementswithin±10%(E11
&greater±20%),complieswithANSI/ESDS4.1.Open
circuitvoltagesof10volts±5%and100volts±5%halfthe
accuracy required of ANSI/ESD S4.1
Meter Weight: 15.5oz.
Dimensions:8"Lx4.3"Wx1.6"H
Test Switch:Presstheredtestbuttonfor15-20second
electrification period. Meter will immediately display surface
resistanceexponentviaLED.LCDwilldisplaytemperature
(both Fahrenheit & Celsius), then relative humidity, and
after taking numerous readings and making numerous
calculations display surface resistance mantissa.
Note: Reporting test results, you may want to record the
resistance, humidity, temperature, and test voltage.
Maintenance
YourSurfaceResistanceTestKitwillrequirelittle
maintenance, and there are no user serviceable parts. If
your Meter requires service beyond cleaning the Electrodes
or replacing the batteries, please contact the factory.
Thisproductutilizesahighfrequencyswitchingcircuit
tostepupthe3voltsfromthebatteriestothe100volt
test level. Some users are able to discern a slight hum
orbuzzing.Thisisperfectlynormalandshouldnotbe
considered a flaw or defect.
©2010DESCOINDUSTRIESINC.
EmployeeOwned
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com

TB-6520Page6of7 ©2010DESCOINDUSTRIESINC.
EmployeeOwned
Calibration
The Surface Resistance Test Kit is calibrated to NIST
traceable standards. Most users require calibration
annually. Please call our Customer Service Department at
909-664-9980(Chino,CA)or781-821-8370(Canton,MA)
fordetails.In-housecalibrationcanbeperformedbyusing
1%resistorsineachofthemeterranges.Simplyattachthe
resistors to the cords using grounding clips and recording
the meter display. Keep the cords separated. Should
adjustment be necessary, it is recommended that the unit
be returned to the factory as access to internal adjustments
requires special equipment and test cables.
CALIBRATION EQUIPMENT:
• DigitalMultimeter-accurateto1.25%@10VDCand
100VDC
• FixedDecadeBoxvalue10E3-10E12-accurateto
±2.5%,exceptat10E11and10E12(±5%)
• Thermometer-accurateto±1°F
• Humiditymeter-accurateto2%
• Testleads
• 99%Isopropylalcoholandcleaningwipes
SET UP:
A. Test Area-Areaneedstobefreeofanyhighvoltage
transformer or power supply. Not to be performed under
any type of fluorescent lighting or high power lighting.
B. Worksurface-needstobecoveredwithconductivemat
at1.0x10E3orless,connectedtoequipmentground.
C. Technician-needstobegroundedwithzeroohm
resistor to equipment ground.
D. Decade Box -needstobegroundedtoequipment
ground.
Accuracyismeasuredafternormalizingtheinstrumentat
70-80°Fand30-50%RHforaminimumof4hours.
NORMALIZATION OF SURFACE RESISTANCE TEST KIT
Temperatureinsidetestingareaneedstobe75°F@
±6.6%40%to60%RH.Testersneedtostayatconstant
temperature75°F@±6.6%forabout2hoursforproper
reading.Metercannotbeinsideobjects,enclosedboxes,
containers or cases unit is supplied with (temperature inside
case will differ from outside temperature, cases will act like
an insulator to the Meter), Meter will have to be stationary
in testing area for about 2 hours with no significant
temperature changes.
CALIBRATION TEST PROCEDURE
• Whentestinguseonlytheleadssuppliedwiththemeter.
DONOTTESTWITHRESISITIVITYATTACHMENT,
Resistivity Attachment will give a much higher reading
and is only designed for spot checking.
• With10V/AUTOswitchdown,pressTESTbutton-
voltagebetweenthetwoleadsshouldbe10V±5%
• With10V/AUTOswitchup,pressTESTbutton-voltage
betweenthetwoleadsshouldbe100V±5%
• Usingthecleaningwipesand99%isopropyl,clean
around banana jack and mono jack where leads connects
to, oil from human fingers can alter accuracy.
• Makesure10V/AUTOswitchissettoAUTO(switchup).
Testingeachdecadestartingfrom1.0x10E12anddown,
donotstartfrom1.0x10E3.
Temperature Fahrenheit =75°F±6.6%
  Celsius=23.8°C±10.2%
RelativityHumidity±10Digits
A. 1.0 x 10E12
 +20% LED=12YellowMantissa1.20
 0% LED=12YellowMantissa1.00
 -20% LED=11YellowMantissa8.00
B. 1.0 x 10E11
 +20% LED=11YellowMantissa1.20
 0% LED=11YellowMantissa1.00
 -20% LED=10Green Mantissa8.00
C. 1.0 x 10E10
 +10% LED=10Green Mantissa1.10
 0% LED=10Green Mantissa1.00
 -10% LED=9Green Mantissa9.00
D. 1.0 x 10E9
 +10% LED=9Green Mantissa1.10
 0% LED=9Green Mantissa1.00
 -10% LED=8Blue Mantissa9.00
E. 1.0 x 10E8
 +10% LED=8Blue Mantissa1.10
 0% LED=8Blue Mantissa1.00
 -10% LED=7Blue Mantissa9.00
F. 1.0 x 10E7
 +10% LED=7Blue Mantissa1.10
 0% LED=7Blue Mantissa1.00
 -10% LED=6Blue Mantissa9.00
G. 1.0 x 10E6
 +10% LED=6Blue Mantissa1.10
 0% LED=6Blue Mantissa1.00
 -10% LED=5Green Mantissa9.00
H. 1.0 x 10E5
 +10% LED=5Green Mantissa1.10
 0% LED=5Green Mantissa1.00
 -10% LED=4Green Mantissa9.00
I. 1.0 x 10E4
 +10% LED=4Green Mantissa1.10
 0% LED=4Green Mantissa1.00
 -10% LED=3Red Mantissa9.00
J. 1.0 x 10E3
 +10% LED=3Red Mantissa1.10
 0% LED=3Red Mantissa1.00
 -10% LED=<3Red Mantissa<0.90
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com

TB-6520 Page 7 of 7 ©2010DESCOINDUSTRIESINC.
EmployeeOwned
Specifications
Ranges: 1x10E3-<1x10E6ohms@10Volts
complies with ANSI/ESD S4.1.
1x10E6-1x10E12ohms@100Volts
complies with ANSI/ESD S4.1.
Power Supply: Two AA alkaline batteries
EMIT-3651WalnutAvenue,Chino,CA91710•(909)664-9980•Fax(909)627-7449•Website:DescoEMIT.com
Limited Warranty
EMITexpresslywarrantsthatforaperiodoffive(5)yearsfromthedateof
purchase, EMIT Surface Resistance Test Kits will be free of defects in material
(parts)andworkmanship(labor).Withinthewarrantyperiod,acreditforpurchase
of replacement EMIT products, or, at EMIT’s option, the product will be repaired or
replaced free of charge. If product credit is issued, the amount will be calculated by
multiplyingtheunusedportionoftheexpectedfiveyearlifetimestheoriginalunit
purchaseprice.CallourCustomerServiceDepartmentat909-664-9980(Chino,CA)
or781-821-8370(Canton,MA)foraReturnMaterialAuthorization(RMA)andproper
shipping instructions and address. Please include a copy of your original packing
slip, invoice, or other proof of date of purchase. Any unit under warranty should be
shippedprepaidtotheEMITfactory.Warrantyreplacementswilltakeapproximately
two weeks.
If your unit is out of warranty, call our Customer Service Department at
909-627-8178(Chino,CA)or01892665313(Crowborough,U.K.)foraReturn
MaterialAuthorization(RMA)andpropershippinginstructionsandaddress.EMIT
will quote repair charges necessary to bring your unit up to factory standards.
Warranty Exclusions
THEFOREGOINGEXPRESSWARRANTYISMADEINLIEUOFALL
OTHERPRODUCTWARRANTIES,EXPRESSEDANDIMPLIED,INCLUDING
MERCHANTABILITYANDFITNESSFORAPARTICULARPURPOSEWHICHARE
SPECIFICALLYDISCLAIMED.Theexpresswarrantywillnotapplytodefectsor
damage due to accidents, neglect, misuse, alterations, operator error, or failure to
properly maintain, clean or repair products.
Limit of Liability
In no event will EMIT or any seller be responsible or liable for any injury, loss or
damage, direct or consequential, arising out of the use of or the inability to use
theproduct.Beforeusing,usersshalldeterminethesuitabilityoftheproductfor
their intended use, and users assume all risk and liability whatsoever in connection
therewith.