Low Range Precision Miniature Load Cell
Model 31 Low
DESCRIPTION
Model 31 low range precision miniature load cells measure
both tension and compression load forces of 50 grams to 500
g. These models are our highest accuracy, rugged miniature
load cells. Model 31’s welded, stainless steel construction is
designed to eliminate or reduce to a minimum, the effects of
off-axis loads. (The internal construction assures excellent long-
term stability for ranges 1000 grams and above.) A modification
permits this model to be completely welded for underwater
applications. The Model 31 tension/compression load cell has
male threads attachments. High accuracies of 0.15 % to 0.25 %
full scale are achieved. Each bonded strain gage unit is built of
welded 17-4 PH stainless steel for additional ruggedness.
FEATURES
• 50gto500g
• mV/Voutput
• Stainlesssteel
• Miniaturedesign
• Doublediaphragmconstruction
2Honeywell•SensingandControl
Model 31 Low
PERFORMANCE SPECIFICATIONS
Characteristic Measure
Load ranges550 g, 150 g, 250 g, 500 g
Linearity ±0.15 % full scale
Hysteresis ±0.15 % full scale
Non-repeatability ±0.1 % full scale
Tolerance on output
50 g to 150 g 0,1mV/Vmax.
Tolerance on output
250 g to 500 g 20mV/V
Operation Tension/compression 3
Resolution Infinite
RANGE CODES
Range Codes Range
AJ 50 g
AL 150 g
AN 250 g
AP 500 g
ELECTRICAL SPECIFICATIONS
Characteristic Measure
Straingagetype Semiconductor
Excitation (calibration) 5Vdc
Insulation resistance 5000Mohm@50Vdc
Bridge resistance 500 ohm
Zero balance 1 % max.
Electrical termination (std) Teflon cable (5 ft)
MECHANICAL SPECIFICATIONS
Characteristic Measure
Maximum allowable load 5 lb1
Weight 90 g
Material 17-4 PH stainless steel
Deectionfullscale 0,020 mm [0.0008 in]
Natural frequency 740 Hz
WIRING CODES
Cable
Red (+) excitation
Black (-) excitation
Green (-) output
White (+) output
MOUNTING DIMENSIONS
ENVIRONMENTAL SPECIFICATIONS
Characteristic Measure
Temperature, operating -53°Cto121°C[-65°Fto250°F]
Temperature, compensated 15°Cto71°C[60°Fto160°F]
Storagetemperature -73°Cto148°C[-100°Fto300°F]
Temperature effect, zero 0.015%fullscale/°F
Temperature effect, span 0.015%fullscale/°F
6-32 UNC base thread
OPTION CODES
Many range/option combinations are available in
our quick-ship and fast-track manufacture pro-
grams. Please see http://sensing.honeywell.com/
TMsensor-ship for updated listings.
Load range 50, 150, 250, 500 g
Temperature
compensa-
tion
1a.60°Fto160°F
1b.30°Fto130°F
1c.0°Fto185°F
1d.-20°Fto130°F
1e.-20°Fto200°F
1j.0°Fto50°C
1k.-20°Cto85°C
1m.-25°Cto110°C
Internal am-
pliers
2u.Unamplied,mV/Voutput
Overload
stops
4a. Overload stop
Electrical
termination
6d.MicrotecDR-4S-4H
4-pin
6e.Integralcable:Teon
6f.Integralcable:PVC
6h.Integralcable:Sili-
cone
6i.Integralunderwater
cable(max.82°C
[180°F])
6v.Phoenixconnector
on end of cable
15d.Connectoronend
of cable
Special cali-
bration
30a.Compressiononlycalibration,positiveincom-
pression
30b. Tension and compression calibration, positive
in tension
30c.Compressiononlycalibration,negativeincom-
pression
Shock and
vibration
44a.Shockandvibrationresistance
Interfaces 453e.Signaturecalibration6
53t.TEDSIEEE1451.4module
SensingandControl
AutomationandControlSolutions
Honeywell
1985DouglasDriveNorth
GoldenValley,MN55422USA
+1-815-235-6847
www.honeywell.com/sensing
008629-1-EN IL50 GLO
May 2008
Copyright © 2008 Honeywell International Inc. All rights reserved.
Model 31 Low Low Range Precision Miniature Load Cell
TYPICAL SYSTEM DIAGRAM
NOTES
1. Allowable maximum loads - maximum load to be applied without
damage. 2
2. Without damage - loading to this level will not cause excessive zero
shift or performance degradation. The user must consider fatigue
life or long term use and structural integrity. All structurally critical
applications (overhead loading, etc.) should always be designed
with safety redundant load paths.
3. Standardcalibrationfortension/compressionloadcellsisintension
only.
4. TEDSavailablewithintegralcableunitsonly.
5. This unit calibrated to Imperial (non-Metric) units.
6. Signaturecalibrationonlyavailableasinlinemodule.
Warranty. Honeywell warrants goods of its manufacture as
being free of defective materials and faulty workmanship.
Honeywell’s standard product warranty applies unless agreed
to otherwise by Honeywell in writing; please refer to your
order acknowledgement or consult your local sales office for
specific warranty details. If warranted goods are returned to
Honeywell during the period of coverage, Honeywell will repair
or replace, at its option, without charge those items it finds
defective. The foregoing is buyer’s sole remedy and is in lieu
of all warranties, expressed or implied, including those of
merchantability and tness for a particular purpose. In no
event shall Honeywell be liable for consequential, special, or
indirect damages.
While we provide application assistance personally, through our
literature and the Honeywell web site, it is up to the customer to
determine the suitability of the product in the application.
Specicationsmaychangewithoutnotice.Theinformationwe
supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
FormoreinformationaboutSensingandControlproducts,visit
www.honeywell.com/sensingorcall+1-815-235-6847
Email inquiries to info.sc@honeywell.com
WARNING
PERSONAL INJURY
•DONOTUSEtheseproductsassafetyoremergency
stopdevicesorinanyotherapplicationwherefailureof
theproductcouldresultinpersonalinjury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
•Theinformationpresentedinthiscatalogueisfor
referenceonly.DONOTUSEthisdocumentasproduct
installationinformation.
•Completeinstallation,operationandmaintenance
informationisprovidedintheinstructionssuppliedwith
eachproduct.
Failure to comply with these instructions could result in
death or serious injury.
Mid Range Precision Miniature Load Cell
Model 31 Mid
FEATURES
• 1000gto1000lb
• mV/Voutput
• Stainlesssteel
• Miniaturedesign
DESCRIPTION
Model31midrangeprecisionminiatureloadcellsmeasureboth
tensionandcompressionloadforcesof1000gto1000lb.These
modelsareourhighestaccuracy,ruggedminiatureloadcells.
Model31’swelded,stainlesssteelconstructionisdesignedto
eliminateorreducetoaminimum,theeffectsofoff-axisloads.
(Theinternalconstructionassuresexcellentlong-termstability
forranges1000gramsandabove.)Amodicationpermitsthis
modeltobecompletelyweldedforunderwaterapplications.
TheModel31tension/compressionloadcellhasmalethreads
attachments.Highaccuraciesof0.15%to0.25%fullscaleare
achieved.Eachbondedstraingageunitisbuiltofwelded17-4
PHstainlesssteelforadditionalruggedness.Allloadcellswith
rangesfrom1kgto10lbhaveanelectricalbalancemodulein
theleadwire(approximately1inx.087inthick).Thisbalance
moduledoesnothavetobethesametemperatureasthe
transducer.
2Honeywell•SensingandControl
Model 31 Mid
PERFORMANCE SPECIFICATIONS
Characteristic Measure
Loadranges61000g,5lb,10lb,25lb,50lb,100lb,
250lb,500lb,1000lb
Linearity1000gto250lb ±0.15%fullscale
Linearity500lbto1000lb ±0.2%fullscale
Hysteresis1000gto250lb ±0.15%fullscale
Hysteresis500lbto1000lb ±0.2%fullscale
Non-repeatability1000g ±0.1%fullscale
Non-repeatability
5lbto1000lb ±0.05%fullscale
Toleranceonoutput1000g 1.5mV/V(nominal)
Toleranceonoutput
5lbto1000lb 2mV/V
Operation Tension/compression3
Resolution Innite
RANGE CODES
Range codes Range
AR 1000g
AT 5lb
AV 10lb
BL 25lb
BN 50lb
BR 100lb
CN 250lb
CR 500lb
CV 1000lb
ELECTRICAL SPECIFICATIONS
Characteristic Measure
Straingagetype Bondedfoil
Excitation(calibration)
1kgto10lb
5Vdc
Excitation(calibration)
25lbto1000lb
10Vdc
Insulationresistance 5000Mohm@50Vdc
Bridgeresistance 350ohm
Zerobalance 1%max.
Electricaltermination(std) Teoncable(1524mm[60in])
MECHANICAL SPECIFICATIONS
Characteristic Measure
Maximumallowableload 150%FS1
Weight Seetable
Material 17-4PHstainlesssteel
Deectionfullscale Seetable
Naturalfrequency Seetable
WIRING CODES
Cable Unamplied
Red (+)excitation
Black (-)excitation
Green (-)output
White (+)output
ENVIRONMENTAL SPECIFICATIONS
Characteristic Measure
Temperature,operating -53°Cto121°C[-65°Fto250°F]
Temperature,compensated 15°Cto71°C[60°Fto160°F]
Storagetemperature -73°Cto148°C[-100°Fto300°F]
Temperatureeffect,zero 0.005%fullscale/°F
Temperatureeffect,span 0.005%fullscale/°F
DEFLECTIONS AND RINGING FREQUENCIES
Capacity
(lb)
Deection at full
scale (in)
Ringing fre-
quency (Hz)
Weight
(g)
1000gto
10lb
0,03mm[0.001in] 3000Hz 21g
25lbto100
lb
0,03mm[0.001in] 10000Hz 63g
250lbto
1000lb
0,04mm[0.0015in] 12000Hz 80g
Honeywell•SensingandControl3
Mid Range Precision Miniature Load Cell
MOUNTING DIMENSIONS
Ranges (lb) T H C F A B
1000g,5lb,10lb #6-32UNC 11,43mm
[0.45in]
6,35mm
[0.25in]
1,27mm
[0.05in]
7,87mm
[0.31in]
4,83mm
[0.19in]
25lb,50lb,100lb #10-32UNF 13,21mm
[0.52in]
6,35mm
[0.25in]
0,76mm
[0.03in]
12,7mm
[0.50in]
6,35mm
[0.25in]
250lb,500lb,1000lb 1/4-28UNF 13,21mm
[0.52in]
9,65mm
[0.38in]
0,76mm
[0.03in]
12,7mm
[0.50in]
6,35mm
[0.25in]
OPTION CODES
Many range/option combinations are available
in our quick-ship and fast-track manufacture
programs. Please see http://sensing.honeywell.
com/TMsensor-ship for updated listings.
Load range 1000g,5lb,10lb,25lb,50lb,100lb,250lb,
500lb,1000lb
Temperature
compensation
1a.60°Fto160°F
1b.30°Fto130°F
1c.0°Fto185°F
1d.-20°Fto130°F
1e.-20°Fto200°F
1f.70°Fto250°F
1g.70°Fto325°F
1h.70°Fto400°F
1i.-65°Fto250°F
1j.0°Cto50°C
1k.-20°Cto85°C
1m.-25°to110°C
Internal
ampliers
2u.Unamplied,mV/Voutput
Overload
stops
4a.Overloadstops
Electrical
termination
6a.BendixPTIH-10-6P
-6pin(max.250°F)5
6d.MicrotecDR-4S-4H
4pin
6e.Integralcable:
Teon
6f.Integralcable:PVC
6h.Integralcable:Sili-
cone
6i. Integralunderwater
cable(max.180°F)
6v.Phoenixconnectoron
endofcable
15d.Connectoronend
ofcable
Special
calibration
9a.10point(5up/5down)20%increments
@20°C
9b.20point(10up/10down)10%increments
@20°C
Special
calibration
30a. Compressiononlycalibration,positivein
compression
30b. Tensionandcompressioncalibration,posi-
tiveintension
30c. Compressiononlycalibration,negativein
compression
Shock and
vibration
44a.Shockandvibrationresistance
Interfaces453e.Signaturecalibration7
53t.TEDSIEEE1451.4module
SensingandControl
AutomationandControlSolutions
Honeywell
1985DouglasDriveNorth
GoldenValley,MN55422USA
+1-815-235-6847
www.honeywell.com/sensing
008630-1-EN IL50 GLO
May 2008
Copyright © 2008 Honeywell International Inc. All rights reserved.
Model 31 Mid Mid Range Precision Miniature Load Cell
TYPICAL SYSTEM DIAGRAM
NOTES
1. Allowablemaximumloads-maximumloadtobeappliedwithout
damage.2
2. Withoutdamage-loadingtothislevelwillnotcauseexcessivezero
shiftorperformancedegradation.Theusermustconsiderfatigue
lifeforlongtermuseandstructuralintegrity.Allstructurallycritical
applications(overheadloading,etc.)shouldalwaysbedesigned
withsafetyredundantloadpaths.
3. Standardcalibrationfortension/compressionloadcellsisintension
only.
4. TEDSavailablewithintegralcableunitsonly.
5. Availabilityvarieswithrange.
6. ThisunitcalibratedtoImperial(non-Metric)units.
7. Signaturecalibrationonlyavailableasinlinemodule.
Warranty. Honeywellwarrantsgoodsofitsmanufactureas
beingfreeofdefectivematerialsandfaultyworkmanship.
Honeywell’sstandardproductwarrantyappliesunlessagreed
tootherwisebyHoneywellinwriting;pleaserefertoyour
orderacknowledgementorconsultyourlocalsalesofcefor
specicwarrantydetails.Ifwarrantedgoodsarereturnedto
Honeywellduringtheperiodofcoverage,Honeywellwillrepair
orreplace,atitsoption,withoutchargethoseitemsitnds
defective.The foregoing is buyer’s sole remedy and is in lieu
of all warranties, expressed or implied, including those of
merchantability and tness for a particular purpose. In no
event shall Honeywell be liable for consequential, special, or
indirect damages.
Whileweprovideapplicationassistancepersonally,throughour
literatureandtheHoneywellwebsite,itisuptothecustomerto
determinethesuitabilityoftheproductintheapplication.
Specicationsmaychangewithoutnotice.Theinformationwe
supplyisbelievedtobeaccurateandreliableasofthisprinting.
However,weassumenoresponsibilityforitsuse.
FormoreinformationaboutSensingandControlproducts,visit
www.honeywell.com/sensingorcall+1-815-235-6847
Emailinquiriestoinfo.sc@honeywell.com
WARNING
PERSONAL INJURY
•DONOTUSEtheseproductsassafetyoremergency
stopdevicesorinanyotherapplicationwherefailureof
theproductcouldresultinpersonalinjury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
•Theinformationpresentedinthiscatalogueisfor
referenceonly.DONOTUSEthisdocumentasproduct
installationinformation.
•Completeinstallation,operationandmaintenance
informationisprovidedintheinstructionssuppliedwith
eachproduct.
Failure to comply with these instructions could result in
death or serious injury.
High Range Precision Miniature Load Cell
Model 31 High
FEATURES
• 2000lbto10000lb
• mV/Voutput
• Stainlesssteel
• Miniaturedesign
• Stabilizedcolumnconstruction
DESCRIPTION
Model31highrangeprecisionminiatureloadcellsmeasure
bothtensionandcompressionloadforcesof2000lbto10000
lb.Thesemodelsareourhighestaccuracy,ruggedminiature
loadcells.Model31’swelded,stainlesssteelconstructionis
designedtoeliminateorreducetoaminimum,theeffectsof
off-axisloads.(Theinternalconstructionassuresexcellentlong-
termstabilityforranges1000gramsandabove.)Amodication
permitsthismodeltobecompletelyweldedforunderwater
applications.TheModel31tension/compressionloadcellhas
malethreadsattachments.Highaccuraciesof0.15%to0.25%
fullscaleareachieved.Eachbondedstraingageunitisbuiltof
welded17-4PHstainlesssteelforadditionalruggedness.
2Honeywell•SensingandControl
Model 31 High
PERFORMANCE SPECIFICATIONS
Characteristic Measure
Loadranges52000lbto10000lb
Linearity ±0.2%fullscale
Hysteresis ±0.2%fullscale
Non-repeatability ±0.05%fullscale
Toleranceonoutput 2mV/V
Operation Tension/compression3
Resolution Innite
RANGE CODES
Range codes Range
DL 2000lb
DN 3000lb
DP 4000lb
DR 5000lb
DT 7500lb
DV 10000lb
ELECTRICAL SPECIFICATIONS
Characteristic Measure
Straingagetype Bondedfoil
Excitation(calibration) 5Vdc
Insulationresistance 5000Mohm@50Vdc
Bridgeresistance 350ohm
Zerobalance 1%max.
Electricaltermination(std) Teoncable(1524mm[60in])
MECHANICAL SPECIFICATIONS
Characteristic Measure
Maximumallowableload 150%FS1
Weight Seetable
Material 17-4PHstainlesssteel
Deectionfullscale Seetable
Naturalfrequency Seetable
WIRING CODES
Cable Unamplied
Red (+)excitation
Black (-)excitation
Green (-)output
White (+)output
ENVIRONMENTAL SPECIFICATIONS
Characteristic Measure
Temperature,operating -53°Cto121°C[-65°Fto250°F]
Temperature,compensated 15°Cto71°C[60°Fto160°F]
Storagetemperature -73°Cto148°C[-100°Fto300°F]
Temperatureeffect,zero 0.005%fullscale/°F
Temperatureeffect,span 0.005%fullscale/°F
DEFLECTIONS AND RINGING FREQUENCIES
Capacity
(lb)
Deection at full
scale
Ringing
frequency
Weight
2000lb,
3000lb
0.03mm[0.001in] 26000Hz 60g
4000lb,
5000lb
0.04mm[0.0015in] 21000Hz 125g
7500lb,
10000lb
0.04mm[0.0015in] 17000Hz 250g
Honeywell•SensingandControl3
High Range Precision Miniature Load Cell
MOUNTING DIMENSIONS
Ranges (lb) T ØD C H
2000lb,3000lb 3/8-24UNF 25,4mm[1.00in] 12,7mm[0.50in] 18,29mm[0.72in]
4000lb,5000lb 1/2-20UNF 31,75mm[1.25in] 16mm[0.63in] 23,88mm[0.94in]
7500lb,10000lb 3/4-16UNF 35,05mm[1.38in] 22,35mm[0.88in] 27,94mm[1.10in]
OPTION CODES
Many range/option combinations are available
in our quick-ship and fast-track manufacture
programs. Please see http://sensing.honeywell.
com/TMsensor-ship for updated listings.
Load range 2000lb,3000lb,4000lb,5000lb,7500lb,
10000lb
Temperature
compensation
1a.60°Fto160°F
1b.30°Fto130°F
1c.0°Fto185°F
1d.-20°Fto130°F
1e.-20°Fto200°F
1f.70°Fto250°F
1g.70°Fto325°F
1h.70°Fto400°F
1i.-65°Fto250°F
1j.0°Cto50°C
1k.-20°Cto85°C
1m.-25°to110°C
Internal
ampliers
2u.Unamplied,mV/Voutput
Electrical
termination
6e.Integralcable:
Teon
6d.MicrotecDR-4S-4H
4pin
6f.Integralcable:PVC
6g.Integralcable:
Neoprene(max.
180°F)
6h.Integralcable:Sili-
cone
6i. Integralunderwater
cable(max.180°F)
6v.Phoenixconnectoron
endofcable
Bridge
resistance
12a.1000ohm(foil)
12b.5000ohm(foil)
Electrical
connector
orientation
15a.Horizontalelectricalexitportorientation
15b.Verticalelectricalexitportorientation
15c.Radialelectricalexitportorientation
15d.Connectoronendofcable
Special
calibration
30a. Compressiononlycalibration,positivein
compression
30b. Tensionandcompressioncalibration,posi-
tiveintension
30c. Compressiononlycalibration,negativein
compression
30d. Tensionandcompressioncalibration,posi-
tiveincompression
Shock and
vibration
44a.Shockandvibrationresistance
Interfaces 53e.Signaturecalibration6
53t.TEDSIEEE1451.4module4
SensingandControl
AutomationandControlSolutions
Honeywell
1985DouglasDriveNorth
GoldenValley,MN55422USA
+1-815-235-6847
www.honeywell.com/sensing
008631-1-EN IL50 GLO
May 2008
Copyright © 2008 Honeywell International Inc. All rights reserved.
Model 31 High High Range Precision Miniature Load Cell
TYPICAL SYSTEM DIAGRAM
NOTES
1. Allowablemaximumloads-maximumloadtobeappliedwithout
damage.2
2. Withoutdamage-loadingtothislevelwillnotcauseexcessivezero
shiftorperformancedegradation.Theusermustconsiderfatigue
lifeforlongtermuseandstructuralintegrity.Allstructurallycritical
applications(overheadloading,etc.)shouldalwaysbedesigned
withsafetyredundantloadpaths.
3. Standardcalibrationfortension/compressionloadcellsisintension
only.
4. TEDSavailablewithintegralcableunitsonly.
5. ThisunitcalibratedtoImperial(non-Metric)units.
6. Signaturecalibrationonlyavailableasinlinemodule.
Warranty. Honeywellwarrantsgoodsofitsmanufactureas
beingfreeofdefectivematerialsandfaultyworkmanship.
Honeywell’sstandardproductwarrantyappliesunlessagreed
tootherwisebyHoneywellinwriting;pleaserefertoyour
orderacknowledgementorconsultyourlocalsalesofcefor
specicwarrantydetails.Ifwarrantedgoodsarereturnedto
Honeywellduringtheperiodofcoverage,Honeywellwillrepair
orreplace,atitsoption,withoutchargethoseitemsitnds
defective.The foregoing is buyer’s sole remedy and is in lieu
of all warranties, expressed or implied, including those of
merchantability and tness for a particular purpose. In no
event shall Honeywell be liable for consequential, special, or
indirect damages.
Whileweprovideapplicationassistancepersonally,throughour
literatureandtheHoneywellwebsite,itisuptothecustomerto
determinethesuitabilityoftheproductintheapplication.
Specicationsmaychangewithoutnotice.Theinformationwe
supplyisbelievedtobeaccurateandreliableasofthisprinting.
However,weassumenoresponsibilityforitsuse.
FormoreinformationaboutSensingandControlproducts,visit
www.honeywell.com/sensingorcall+1-815-235-6847
Emailinquiriestoinfo.sc@honeywell.com
WARNING
PERSONAL INJURY
•DONOTUSEtheseproductsassafetyoremergency
stopdevicesorinanyotherapplicationwherefailureof
theproductcouldresultinpersonalinjury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
•Theinformationpresentedinthiscatalogueisfor
referenceonly.DONOTUSEthisdocumentasproduct
installationinformation.
•Completeinstallation,operationandmaintenance
informationisprovidedintheinstructionssuppliedwith
eachproduct.
Failure to comply with these instructions could result in
death or serious injury.
Mouser Electronics
Authorized Distributor
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