VA (Full bridge)

Full bridge strain gauges of A series coming with four measurement grids already completing the wheatstone bridge. This could be used for a variaty of different applications where only side of a specimen allows an strain gauge installation.

Different sizes including miniature designs.
Aluminum or steel adapted temperature response.
Up to 5000 Ohm resistance.

VA (Full bridge)

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A Series Transducer Strain Gauges: Ensure Maximum Precision and Quality of Your Transducers

The A series universal strain gauges are optimised for transducer manufacturers. Combining the most common constantan measuring grid foils with a high-performance modified PEEK carrier material provides strain gauges that unite easy handling with high accuracy and outstanding humidity behavior.

A series come in different geometries, resistance values, and grid lengths as standard. Custom designs can be developed in just a few weeks.

Robust

Excellent chemical resistance
Very low water absorption and resistance to humidity
Small radii of curvature are possible, allowing for installation in small drill holes

Easy handling during installation and long service life.

Precise

Very high stiffness (modulus of elasticity) and, thus, capable of transferring the measuring body’s deformation directly to the measuring grid
Higher thermal conductivity than polyimide

Suitable for transducers with high accuracy requirements.

Flexible

Over 30 different standard versions for steel or aluminum with 10 different creep adjustments
Various options available such as encapsulation, pre-coating with adhesive, or pre-tinned solder tabs
Custom designs possible

Perfect for your solution, regardless of whether it is standard or custom.

Code	Measuring grid length	Measuring grid length	Measuring grid width	Measuring grid width	Carrier length	Carrier length	Carrier width	Carrier width	Nominal resistance	Temperature response	Connection configuration	Mounting
1-VA21K3/350_E	3 mm	0.118 in	2.1 mm	0.083 in	17.8 mm	0.701 in	7 mm	0.276 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable
1-VA23K3/350_E	3 mm	0.118 in	2.1 mm	0.083 in	17.8 mm	0.701 in	7 mm	0.276 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable
1-VA31K1.9/350_E	1.9 mm	0.075 in	2.8 mm	0.11 in	11.7 mm	0.461 in	7.3 mm	0.287 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable
1-VA33K1.9/350_E	1.9 mm	0.075 in	2.8 mm	0.11 in	11.7 mm	0.461 in	7.3 mm	0.287 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads	Bondable
1-VA51K1.8/1K0_E	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	1000 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable
1-VA51K1.8/350_E	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable
1-VA53K1.8/1K0_E	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	1000 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable
1-VA53K1.8/350_E	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable
1-VA61K2.5/350_E	2.5 mm	0.098 in	2.6 mm	0.102 in	10.4 mm	0.409 in	9.1 mm	0.358 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable
1-VA63K2.5/350_E	2.5 mm	0.098 in	2.6 mm	0.102 in	10.4 mm	0.409 in	9.1 mm	0.358 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable
1-VA71K1.6/350_E	1.6 mm	0.063 in	1.7 mm	0.067 in	8 mm	0.315 in	7.7 mm	0.295 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable
1-VA73K1.6/350_E	1.6 mm	0.063 in	1.7 mm	0.067 in	8 mm	0.315 in	7.7 mm	0.295 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable
K-VA21K3/350BE	3 mm	0.118 in	2.1 mm	0.083 in	17.8 mm	0.701 in	7 mm	0.276 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA21K3/350LE	3 mm	0.118 in	2.1 mm	0.083 in	17.8 mm	0.701 in	7 mm	0.276 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads	Bondable
K-VA31K1.9/350BE	1.9 mm	0.075 in	2.8 mm	0.11 in	11.7 mm	0.461 in	7.3 mm	0.287 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA33K1.9/350BE	1.9 mm	0.075 in	2.8 mm	0.11 in	11.7 mm	0.461 in	7.3 mm	0.287 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA51K1.8/1K0BE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	1000 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA51K1.8/1K0LE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	1000 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads	Bondable
K-VA51K1.8/350BE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA51K1.8/350LE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads	Bondable
K-VA53K1.8/1K0LE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	1000 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads	Bondable
K-VA53K1.8/350BE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA53K1.8/350LE	1.8 mm	0.071 in	1.8 mm	0.071 in	8.3 mm	0.327 in	6.8 mm	0.268 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads	Bondable
K-VA61K2.5/350BE	2.5 mm	0.098 in	2.6 mm	0.102 in	10.4 mm	0.409 in	9.1 mm	0.358 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA61K2.5/350LE	2.5 mm	0.098 in	2.6 mm	0.102 in	10.4 mm	0.409 in	9.1 mm	0.358 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads	Bondable
K-VA71K1.6/350BE	1.6 mm	0.063 in	1.7 mm	0.067 in	8 mm	0.315 in	7.7 mm	0.295 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA71K1.6/350LE	1.6 mm	0.063 in	1.7 mm	0.067 in	8 mm	0.315 in	7.7 mm	0.295 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads	Bondable
K-VA73K1.6/350BE	1.6 mm	0.063 in	1.7 mm	0.067 in	8 mm	0.315 in	7.7 mm	0.295 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs	Bondable (adhesive pre-applied)
K-VA73K1.6/350LE	1.6 mm	0.063 in	1.7 mm	0.067 in	8 mm	0.315 in	7.7 mm	0.295 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads	Bondable

A Series - Data Sheet	Data Sheets	English
A Series (for OEM) - Data Sheets	Data Sheets	German

Certificates and Approvals

Strain Gauges and Accessories - Statement of Compliance

Declaration of Conformity

English

VA (Full bridge)
Type/technology	Foil strain gauge
Application	Manufacturing transducers
Geometry	Full bridge circuit
Measuring grid length	3 mm, 1.9 mm, 1.8 mm, 2.5 mm, 1.6 mm
Measuring grid length	0.118 in, 0.075 in, 0.071 in, 0.098 in, 0.063 in
Measuring grid width	2.1 mm, 2.8 mm, 1.8 mm, 2.6 mm, 1.7 mm
Measuring grid width	0.083 in, 0.11 in, 0.071 in, 0.102 in, 0.067 in
Carrier length	17.8 mm, 11.7 mm, 8.3 mm, 10.4 mm, 8 mm
Carrier length	0.701 in, 0.461 in, 0.327 in, 0.409 in, 0.315 in
Carrier width	7 mm, 7.3 mm, 6.8 mm, 9.1 mm, 7.7 mm
Carrier width	0.276 in, 0.287 in, 0.268 in, 0.358 in, 0.295 in
Temperature range	Standard (up to 200°C)
Nominal resistance	350 Ohms, 1000 Ohms
Gauge factor (measuring grid material)	Constantan (ca 2.0)
Temperature response	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Aluminium (23 ppm/K; 12.8 ppm/°F)
Maximum elongation	Standard
Fatigue life	Standard
Connection configuration	Integrated solder tabs, Leads
Mounting	Bondable, Bondable (adhesive pre-applied)
Grid protection	Covered

List of accessories available for all variants of this family

Product Code	Description
1-EP310N	Hot curing 2-comp. adhesive EP310N
1-P250	1-comp. adhesive P250 - 2 x 15 g
1-NG120	Nitrile rubber NG120
1-RMS1-300	RMS1 solvent mixture 300 ml
K-KAB-ML	Measurement cable by the meter