transducers...EC1 72-4490 EC1 72-4493 10.0µm 0to0.5g 0.2g 0.5g 0to5.0g 2.5g 5.0g EC1 72-4491 EC1...

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transducers

Products Page No.

TransducersResearch Grade Isometric Transducers 2HSE-HA Isometric Force Transducers F30 and F10 3HSE-HA Force Displacement and Vernier Control 4Isometric and Isotonic Transducers 5Harvard Apparatus Isometric and Isotonic Transducers 6 - 8Calibration Weights 9

Force Transducers,see page 4

Force Calibration Weights,see page 6

Isotonic Transducerssee page 9

Research Grade Isometric Transducer,see page 2

http://www.harvardapparatus.com/webapp/wcs/stores/servlet/AdvancedSearchForm?catalogId=11051&storeId=10001&langId=-1&division=HAI&pageId=AdvancedSearchhttp://www.harvardapparatus.com/webapp/wcs/stores/servlet/catalog_11051_10001_-1_HAIhttp://www.harvardapparatus.com/webapp/wcs/stores/servlet/ContactView?langId=-1&storeId=10001&catalogId=11051&division=HAI&pageId=ContactUs&subPageId=

2Harvard Apparatus • phone 508.893.8999 • toll free U.S. 800.272.2775 • fax 508.429.5732 • www.harvardapparatus.com

transducersResearch Grade Isometric Transducers

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Research Isometric TransducerThis Isometric Transducer approaches the ideal of measuring isometriccontraction force without motion. It is available with three different forceranges. Each Transducer has an X10 range selector switch providingtwo ranges.

This Transducer measures force by measuring the change in capacitanceof a stiff beam between two plates. Beam deflection is measured inmicrons.

Two models are now available. The only difference between the models isthe length and diameter of the mounting rod. Model 1 has a 12.7mm ODby 51mm long mounting rod. Model 2 has a 9.5 mm OD by 91.4mm longmounting rod.

EC1 72-4480 to EC1 72-4485 Research Isometric Transducer SpecificationsOutput Impedance 10,000 ΩSensitivity < 1 part in 1,000

Accuracy Output Voltage ±1%

Output Connector Standard BNC

Linearity ±1%

Drift Negligible after 5 min. warm-up

Amplifier Adjustments Range selector and offset

Display LCD, 7.6 mm (0.3 in) numbers

Weight 908 g (2 lb)

Transducer, H x W x D 32 x 45 x 32 mm (1-1/4 x 1-3/4 x 1-1/4 in)

Amplifier, H x W x D 51 x 95 x 86 mm (2 x 3-3/4 x 3-3/8 in)

Mounting Handle, OD x L:

Model 1 12.7 x 51 mm (0.5 x 2 in)

Model 2 9.5 x 91.4 mm (0.375 x 3.6 in)

Our Research Isometric Force Transducers supplyexcitation voltage to a self-contained transducer andconvert the pico-farad changes of capacitance intohigh level DC voltages using a patented electroniccircuit (U.S. Patent #4,142,144). This circuit isextremely sensitive and stable, producing up to 5VDC for direct connection to Standard SignalConditioners, Data Acquisition Systems, ModularUniversal Oscillographs, Student Oscillographs,Flatbed Strip Chart Servo Recorders, and X-Y Plotters.

All transducers have a small external transducerelement hard-wired to a small amplifier. This

• Self-powered transducer and amplifier in one• Transducers are available with three different

sensitivities• Each Transducer has two selectable ranges

amplifier is hard-wired to a wall type transformer. Thetransformer reduces line voltage to 12 VDC and isboth UL- and CSA-listed. For 230 VAC, 50 Hzoperation the transformer is VDE-listed. TheseTransducers are factory-calibrated to deliver 5 VDCfor full rated load and are still linear for 100%overload (4 VDC). They have offset (tare) controls.

The Transducer amplifier has a 3-digit backlit LCDdisplay that shows the output voltage. A standard BNCoutput connector is located at the rear of the amplifier.These amplifiers can be stacked for multiple use.

Research Isometric Force TransducerPower Sensitivity

Deflection Selectable Offset 2 VDC115 VAC, 230 VAC, Per Gram Force Control Output60 Hz 50 Hz Load Ranges Max. Tare Voltage Per

Model 1 with 12.7 x 51 mm (0.5 x 2 in) Mounting Rod (OD x L)

EC1 72-4490 EC1 72-4493 10.0 µm 0 to 0.5 g 0.2 g 0.5 g0 to 5.0 g 2.5 g 5.0 g

EC1 72-4491 EC1 72-4494 1.0 µm 0 to 5.0 g 2.5 g 5 g0 to 50 g 25 g 50 g

EC1 72-4492 EC1 72-4495 0.1 µm 0 to 50 g 25 g 50 g0 to 500 g 250 g 500 g

Model 2 with 9.5 x 91.4 mm (0.375 x 3.6 in) Mounting Rod (OD x L)

EC1 72-4480 EC1 72-4483 10.0 µm 0 to 0.5 g 0.2 g 0.5 g0 to 5.0 g 2.5 g 5.0 g

EC1 72-4481 EC1 72-4484 1.0 µm 0 to 5.0 g 2.5 g 5 g0 to 50 g 25 g 50 g

EC1 72-4482 EC1 72-4485 0.1 µm 0 to 50 g 25 g 50 g0 to 500 g 250 g 500 g



transducersHSE-HA Isometric Force Transducers F30 and F10

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• Ultra-high resolutionof ±0.5 mg

• Low verticaldisplacement (6 µm/g)

• Suitable for smalltissue samples likepapillary muscle,Purkinje fibers andvessel rings

• Force range of ±10grams (±0.1 N)

HA-HSE Isometric Force Transducer F30The HA-HSE F30 is a sensitive, reliable and rugged isometric force transducersuitable for use with very small muscle/tissue specimens. The ultra-low verticaldisplacement of the transducer means that true isometric measurements canbe made. The low seismic sensitivity of the HA-HSE F30 minimizes theinfluence of environmental vibrations on the force recordings which result invery stable baselines. The design of the unit (no internal wires suspending thetransducer head) means that this transducer will stand up to years of use. Thisis a full resistance bridge transducer which can be connected to the HA-HSETAM-A and TAM-D strain gauge amplifiers, see page I36. Connectors are alsoavailable for Harvard Apparatus Ltd., Grass and Gould strain gauge amplifiers.

• Resolution of ±2 mg• Ultra low vertical

displacement (1 µm/g)• Suitable for small

tissue samples likepapillary muscle,Purkinje fibers andvessel rings

• Force Range of ±30grams (±0.3 N)

SpecificationsForce Range ±30 g (±0.3 N)Linear Range ±50 cNMaximum Load ±3 NDisplacement Range ±0.03 mmSensitivity 0.5 mV/V gIsometric Quotient IQ 1 µm/gExcitation AC or DC 5 V (max. 10 V)Full-Scale Output ±10 mV/V, nominalNatural Frequency 440 Hz, nominalBridge Resistance 1 KΩ, nominal, full resistance bridgeHysteresis < 0.1%Zero Drift < 10 mg/°C at 20 to 40°C < 0.03 % FS/°CResolution (Noise) 2 mgMaximum Load 300%Breaking Load 1000%Sensitivity to < 0.1%Transverse LoadMaximum Allowed < 300%Transverse LoadConnection Cable 1.5 m LWeight 200 g (7 oz)Dimensions 22 x 22 x 70 mm (0.9 x 0.9 x 2.8 in)Mounting Rod, OD x L 6 x 130 mm (0.25 x 5.1 in)

HA-HSE Isometric Force Transducer F10The HA-HSE F10 isometric force transducer is a lower force range, higherresolution version of the F30 isometric force transducer on the left.* Note: This transducer is produced under licence from DLR: Deutsche Forschungsanstalt fürLuft- und Raumfahrt e.V., D-51140 Köln.

SpecificationsForce Range ±10 g (±0.1 N)

Linear Range ±20 cN

Maximum Load ±0.5 N

Displacement Range ±60 µm

Sensitivity 3.0 mV/V g

Isometric Quotient IQ 6 µm/g

Excitation AC or DC 5 V (max. 10 V)

Full-Scale Output ±20 mV/V, nominal

Natural Frequency 180 Hz, nominal

Bridge Resistance 1 KΩ, nominal, full Ωic bridgeHysteresis < 0.1%

Zero Drift < 10 mg/°C at 20 to 40°C < 0.03 % FS/°C

Resolution (Noise) 0.5 mg

Maximum Load 100%

Breaking Load 300%

Connection Cable 1.5 m L

Peak to Peak < 0.5 mg

Weight 200 g (7 oz)

Dimensions 22 x 22 x 70 mm (0.9 x 0.9 x 2.8 in)

Mounting Rod, OD x L 6 x 130 mm (0.25 x 5.1 in)

Order # ProductEC1 73-0831 Isometric Transducer F30 for PLUGSYS AmplifierEC1 73-2657 Isometric Transducer F30 for Harvard Apparatus

Transducer AmplifierEC1 73-2658 Isometric Transducer F30 for Grass AmplifierEC1 73-2659 Isometric Transducer F30 for Gould Series 6600

Amplifier

Order # ProductEC1 73-0841 Isometric Transducer F10 for PLUGSYS AmplifierEC1 73-2661 Isometric Transducer F10 for Harvard Apparatus

Transducer AmplifierEC1 73-2662 Isometric Transducer F10 for Grass Amplifier,

6-Pin Cannon ConnectorEC1 73-2663 Isometric Transducer F10 for Gould Series 6600

AmplifierReferences:

Gollasch, M. et al.: Pinacidil Relaxes Porcine and Human Coronary Arteries by Activating ATP-Dependent Potassium Channels in Smooth Muscle Cells. J. Pharmacol. Exp. Ther., 275. 681-691 (1995)



transducersHSE-HA Force Displacement and Vernier Control

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EC1 73-0822

K Series Force-Displacement TransducersSeries K force transducers are universally applicable for the measurementof force. There are 4 models, for 4 different force ranges: K30 (±30 g-force), K100 (100 g-force), K300 (300 g-forces), and K1000 (1000 g-force).The maximum displacement at the tip of the flat spring is 4 mm. The K30includes a damping system with oil.

SpecificationsTransducer K30 K100 K300 K1000

Force Range ±30 g-force, ±100 g-force, ±300 g-force, ±1000 g-force,±0.3 N ±1N ±3 N ±10 N

Displacement ±2.5 mm ±2 mm ±3 mm ±1 mmSensitivity 100 µV/ 30 µV/ 10 µV/ 3 µV/(Force) g-force/V g-force/V g-force/V g-force/VSensitivity 1200 µV/ 0.7 mV/ 0.8 mV/ 1.2 mV/(Displacement) mm/V mm/V mm/V mm/VNatural Frequency 110 Hz 170 Hz 200 Hz 400 Hzwithout LoadResolution 5 mg 15 mg 50 mg 150 mgInput Impedance 350 Ω(Pins 1–5)Output Impedance 350 Ω(Pins 2–4)Supply Voltage 10 V max.Dimensions 20 x 20 x 84 mm (0.8 x 0.8 x 3.3 in)Without PulleyHeight with Pulley 60 mm (2.4 in)Mounting Rod 6 x 130 mm (0.25 x 5.1 in), OD x LWeight 200 g (7 oz)

• 3 versions available• Robust mechanical construction with less friction• Allows fine adjustment

SpecificationsWeight:

850 N and 850 S 0.35 kg (0.8 lb)

850 E 0.47 kg (1 lb)

Max. Dimensions:

850 N and 850 S 115 x 50 x 20 mm (4.5 x 2 x 0.8 in)

850 E 160 x 55 x 20 mm (6.3 x 2.2 x 0.8 in)

Displacement Per Turn 0.5 mm

Max. Displacement 22 mm

Rod Mounting Hole Ø:

850 N and 850 E 13 mm (0.5 in)

850 S 14 mm (0.55 in)*

Hole for Transducer Holder:

850 N and 850 E 2 x Ø 10.5 mm/90°

850 S 2 x Ø 14.5 mm/90°*

Power Supply 850 E Only 12 V DC for connection toflushing unit

*Note: Extra large hole for GRASS force-displacement transducers

• Four ranges available• Oil damping system• Robust construction• Application in teaching

K Series Force Transducer

Transducer ModelFor UseWith K30 K100 K300 K1000

HA-HSE EC1 73-0822 EC1 73-0824 EC1 73-0825 EC1 73-0826HA EC1 73-2676 EC1 73-2677 EC1 73-2678 EC1 73-2679Grass EC1 73-2680 EC1 73-2681 – EC1 73-2683Gould 6600 EC1 73-2684 EC1 73-2685 EC1 73-2686 EC1 73-2687

Vernier ControlThe vernier control allows an exact pre-stretch of the tissue preparation inorder to ensure optimum contractile force of the musculature. The S-Version is specific for the transducer with 14 mm mounting rod. The E-Version is a motorized type that is compatible with the flushing unit andmicrodrive controller.

Order # ProductEC1 73-0786 Vernier Control, Standard, Type 850 NEC1 73-0787 Vernier Control, Motorized Version, Type 850 EEC1 73-0788 Vernier Control, Special, Type 850 S

850 N 850 S 850 E



transducersTRI Series Isometric Force Transducers

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CitationsGomez-Cabrero A et al. (2005) Use of transduction proteins to target trabecularmeshwork cells: outflow modulation by profilin I. Molecular Vision. 11: 1071-1082.(bovine anterior segment, Spain).

Kim EJ et al. (2005) Safety pharmacology of sibutramine mesylate, an anti-obesity drug.Hum. Exp. Toxicol. 24(3): 109-119 (rat smooth muscle, Korea)

Rosa EF et al. (2005) Habitual exercise program protects murine intestinal, skeletal, and cardiacmuscles against aging. J. Appl. Physiol. 99(4): 1569-1575. (mice cardiac muscle, Brazil).

Fukada SY et al. (2004) Mechanisms of impaired vascular response to ANGII inperivascular injured carotid arteries of ovariectomized rat. J. Cardiovasc. Phamacol.44(3): 393-400. (rabbit carotid arteries, Brazil)

Gomez-Alvis A et al. (2004) Cardiac and vascular effects of diltiazem, dobutamine andamrinone, drugs used after myocardial revascularization. Braz J Med Biol Res. 37(6):893-900. (vessel rings, atrium, Argentina)

Parameters Measured• Muscle contraction forceComponents Included• Transducer• Specifications Sheet• Calibration CertificateAdditional components required• ISO 510 Amplifier in Power Supply Box,

see page I63

TRI Series Force Transducers (isometric) measure the force of contractionof isolated tissues under conditions of constant force. IsometricTransducers are classically used in Organ Bath experiments with muscleswith short/rapid contractions such as tracheal muscle, atrium, papillarymuscle, aortic rings, veins or other vessel rings.

The Transducers are equipped with a special system allowing an easy andrapid fixation of the thread that tightens upper side of the tissue in anorgan bath. TRI Series Transducers are appropriate for various load rangesfrom simple applications to those requiring detection of very small forces.

TR 201 Isometric Force Transducer

TR 210 Basic Isometric Force Transducer

Order # Model ProductEC1 76-0094 TRI201 High Performance TransducerEC1 76-0095 TRI202P High Sensitivity Transducer from

0 mg to 25 g. (0.05 mg steps)EC1 76-0096 TRI203P High Sensitivity Transducer from

0 mg to 50 g. (0.05 mg steps)EC1 76-0097 TRI210 Basic Force TransducerEC1 76-0098 TRI210A Basic Transducer

(audio connector)

SpecificationsTRI201: High performance 5 mg to 25 g; Transducer Range

Resolution 2 mg; Displacement: +- 0.45 mm;

Sensitivity (full range) 30 mv/V; Excitations: 5-10V AC/DC;

Element Resistance full bridge 360 W

TRI202P-TRI 203P: Very high sensitivity Transducer for small forces

Range 0 mg to 25 g (TRI 203P: up to 50 g);

Resolution infinite;

Displacement +- 0.03 mm;

Sensitivity (full range): 100 mv/V;

Excitations 5-10V AC/DC;


TRI210: Teaching Force Transducer

Range 10 mg to 25 g;

Resolution 5 mg;

Displacement +- 0.5 mm;

Sensitivity (full range): 20 mv/V;

Excitations 5-10V AC/DC;


TR 202 Isometric ForceTransducer for Small Forces



UF1 Series Isometric TransducerThe popular UF1 Series of load cells has been adapted to be used with theabove listed amplifiers and interfaces. These Transducers have an integralcable that is compatible with the following amplifiers: EC1 53-6132, EC1 50-7970, EC1 50-7996 and EC1 50-8861. They are available in six force ranges.

• ±1% accuracy• Temperature range from -40° to +80°C

(-104° to +176°F)• Available in six force ranges

UF1 Series Isometric Transducers

Order # Force RangeEC1 50-7293 0 to 25 gEC1 50-8036 0 to 55 gEC1 50-8044 0 to 110 gEC1 50-8051 0 to 220 gEC1 50-8069 0 to 450 gEC1 50-8077 0 to 1000 g

SpecificationsDimensions:

Transducer, H x W x D 70 x 35 x 25 mm (2.75 x 1-3/8 x 1 in)

Mounting Rod, OD x L 6.5 x 40 mm (0.25 x 1.5 in)


Transducer, H x W x D 19 x 150 x 19 mm (3/4 x 6 x 3/4 in)

Mounting Rod, OD x L 12.5 x 75 mm (1/2 x 3 in)

Harvard Apparatus Ltd. IsometricTransducersIsometric muscle contraction is defined as force with zero motion. HarvardApparatus Isometric Transducers achieve this condition by means of thinfilmed,bonded strain gauges and substantial beams. The strain gauge has four-wireclosed Wheatstone bridges for long term stability and sensitivity. The stiffnessof the transducer and stem prevents unwanted displacement.

To operate, these Isometric Transducers require power from the amplifier/signalconditioner to which they are connected. They are available in five force rangesand are supplied with an amplifier/signal conditioner specific, 1.8 m (6 ft) Cable.These Cables are also available separately allowing the Transducer to connectedto a different amplifier/signal conditioner simply by switching the Cable.

• Strain gauge type• Available in five force ranges

Harvard Apparatus Isometric Transducer for Use With

Force Harvard Apparatus Gould SignalRange Amplifiers Conditioners0 to 50 g EC1 50-7905 EC1 50-79110 to 100 g EC1 50-7913 EC1 50-79120 to 200 g EC1 50-7921 EC1 50-79140 to 500 g EC1 50-7939 EC1 50-79150 to 1000 g EC1 50-7947 EC1 50-7916Replacement Cable

– EC1 50-7988 EC1 50-7990

transducersIsometric Transducers



• Very low friction, ideal isotonic measurementconditions

• Easy calibrating conditions• Large linear measuring range 40 mm• Ideal for smooth muscle preparations

EC1 73-0857, 73-2692 to2695 HA-HSE Isotonic Lever

Transducer Model B40

B40 Advanced Research Isotonic LeverTransducerThis system is designed to transduce displacements during contractions andmovements into proportional electric currents. The amount of force requiredto operate the system is exceedingly small, providing ideal isotonicmeasurement conditions for physiological and pharmacological research. Thisarrangement of a lever transducer with any bridge system (DC measuringbridge or TAM plug-in module of our PLUGSYS, see page I36) is particularlywell suited to isotonic measurements in smooth muscle preparations inisolated organ and tissue baths. Values are transmitted as a result ofmovements of a permanent magnet within field plates.

The instrument is calibrated by locking the end of the lever into the calibrationstops on the frame. These stops represent full deflections of ±10 and ±20 mm.If the organ preparation is attached to hole no. 10, this is equivalent to a

movement of ±20 mm (= 40 mm total), reducing for each lower hole used. Theunit can be interfaced with almost any type of AC or DC bridge.

There are 3 calibration steps on the frame: ±22 mm, 0 and –22 mm at adistance of 100 mm from the pivot measured at the arch. The calibrationamplitude is reduced at the various holes as shown below.

Battery-Powered Teaching IsotonicTransducerThis Battery-Powered Teaching Isotonic Transducer has an output shaft locatedin precision bearings, which carries a lever 90 mm (3.5 in) long. This lever isnotched on its top surface and pierced with eight holes on either side of thelever point on a 5 mm pitch from the fulcrum. These piercings are forattachment of the preparation.

A graduated optical density vane (a light wedge), is also mounted on this shaftand moves between a miniature lamp and a silicon phototransistor which are


Case, H x W x D 50 x 100 x 25 mm (2 x 4 x 1 in)

Mounting Rod, OD x L 6.5 x 60 mm (1/4 x 2-1/4 in)

Order # ProductEC1 50-6378 Battery-Powered Teaching IsotonicTransducerEC1 50-9257 4 mm plugs to BNC Cable; for use with

Modular Universal Oscillograph, see page I71,and Student Oscillograph, see page I73

EC1 50-6364 Adapter Cable, 4 mm plugs to 14-Pin DINconnector; for use with Gould 6600 Series Amplifiers

housed in the light-proof casing.

The output of the photo transistor is linear over approximately 50° ofmovement of the lever. A balance control is provided on the front of theinstrument to zero the output at a convenient level. A long lasting mercurybattery is supplied. Output is from a pair of 4 mm sockets on the front panel.

SpecificationsRange/Linearity ±20 mm (0 to 40 mm) / ±2% full scale

Zero Drift < 0.03% / ˚C FS

Frequency Range 0 to 10 Hz

Full Bridge 4 x 300 ΩFrictional Torque of Lever 0.1 mN cm

Output Voltage ±10 mV, adjustable up to max. ±40 mV, internalresistance of 300 Ω, max. output voltage representsfull lever deflection and full measuring range

Power Supply 5 V DC or AC (max. 8 V)

Lever 180 x 85 x 40 mm, 3 positions to screw in support rod

Support Rod 6 mm OD x 130 mm L

Hole No. 10 9 8 7 6 5 4 3 2

cm from Pivot 10 9 8 7 6 5 4 3 2

Displacement (mm) ±20 ±18 ±16 ±14 ±12 ±10 ±8 ±6 ±4

Order # ProductEC1 73-0857 HA-HSE Isotonic Lever Transducer

Model B40 for PLUGSYS SystemEC1 73-2692 HA-HSE Isotonic Lever Transducer

Model B40 for Harvard Apparatus AmplifierEC1 73-2693 HA-HSE Isotonic Lever Transducer

Model B40 for Grass AmplifierEC1 73-2694 HA-HSE Isotonic Lever Transducer

Model B40 for Gould 6600 SeriesEC1 73-0572 Thread Clip, Clamp for Fixing Thread

transducersIsotonic Transducers

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transducersIsotonic Transducers (continued)

Parameters Measured• Changes in muscle length under a constant loadComponents included• Transducer• Specifications Sheet• Callibration Certificate

TRO Isotonic Research TransducerThe TRO Isotonic Transducer measures displacements with pre-adjustedloads (position transducer).

Isotonic transducers are classically used for measuring the contractionamplitude of isolated muscles in Organ Bath studies, i.e. the changesin tissue length observed under a constant load. These transducers arepreferably used with smooth muscle preparations characterized byrelatively slow contractions (ileum, vas deferens, lung strips, esophagus,urinary bladder, etc.).

SpecificationsRange 5 mg to 5 g

Resolution 5 mg

Displacement ±15 º (48 mm)

Sensitivity (full range) 300 mV

Excitations 5-10V DC

Element Resistance 1000 W

Counterweight Five 1 g div. with 250 mg subdiv.graduation

Isotonic Research Transducer

Harvard Apparatus Teaching IsotonicTransducersThis Harvard Apparatus Teaching Isotonic Transducer is exceptionallysensitive and stable, requiring a minimum of force to produce asubstantial electrical signal. It uses precision ball bearings and agraduated optical density vane that moves between an infrared sourceand a sensor.

The notched, pierced input lever is 90 mm (3-1/2 in) long for easyconnection to muscle tissue. A spring and anchor post are supplied forconverting the unit into a Transducer capable of recording frog/heartmuscle tension for auxotonic applications.

This Transducer has a 2 m (6.6 ft) shielded integral cable which terminatesin a specific connector for use with one of the amplifiers/signalconditioners below.

SpecificationsOutput 50 mV/angular degree rotation

Angle of Rotation ±25° above and below horizontal axis

Excitation Voltage -12, 0, +12 VDC

Breakaway Torque 0.05 g/cm

Dimensions:

Housing, H x W x D 45 x 35 x 45 mm (1.75 x 1.5 x 1.75 in)

Mounting Rod, OD x L 6.5 x 60 mm (0.25 x 2.5 in)

Order # ProductEC1 50-6360 Harvard Apparatus Teaching Isotonic Transducer

for use with EC1 53-6132 Harvard Apparatus Amplifier,EC1 50-7970 and EC1 50-7996 Freestanding TransducerInterfaces, and EC1 50-8861 Modular Transducer InterfaceOrder # Model Product

EC1 76-0142 TRO015 Isotonic Research Transducer



transducersCalibration Weights

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Force Calibration WeightsThese NEWTON style calibration weights are precision weights use tocalibrate force transducers. The weights are made from polished brassand have an integral hook. They are supplied in a wooden storage case.They are calibrated in Newtons at the standard acceleration of gravitygn = 9.80665 m/s2. Nine weights are supplied. Class of accuracy M1.

Gram Calibration WeightsThese gram calibration weights are precision weights use to calibratepreload on force transducers. The weights are made from polished brass.They are supplied in a wooden storage case with a pair of handlingforceps and a cleaning brush. Nine weights are supplied. The 0.1, 0.2 and0.5 gram size weights are flat metal pieces. The larger size weights havean integral hook. Class of accuracy M1 after OIML*.

SpecificationsNewtons Gram-Force

0.01 N 1

0.02 N (2 supplied) 2

0.05 N 5

0.1 N (2 supplied) 10

0.2 N 20

0.5 N 50

1.0 N 100

Order # ProductEC1 73-2634 Force Calibration Weights Order # Product

EC1 73-2635 Gram Calibration Weights*Note: Organisation Internationale Metrologie Légale

SpecificationsWeight Tolerance ± mg

0.1 g 0.5 mg

0.2 g (2 supplied) 0.6 mg

0.5 g 0.8 mg

1 g 1.0 mg

2 g (2 supplied) 1.2 mg

5 g 1.5 mg

10 g 2.0 mg


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