

- ASTM E83 and ISO 9513 have very stringent requirements for calibrators used in extensometer calibration.
- Most calibrators rely only on calibration of the micrometer head for system performance.
- With Epsilon’s calibrator systems, each model is calibrated using our in-house interferometer system.
- The 3590VHR was designed with sufficient stiffness to calibrate all Epsilon extensometers (and comparable models).
- Calibration certificate provided with Model 3590VHR encorporates all system errors so you know the complete performance of the device you purchase, and have the confidence to perform all system critical calibrations with the device.
- Epsilon is one of only a few companies in the world with the capability to fully calibrate complete calibrator systems.



Model 3590 adapters

Model 3590VHR assemblies
MODEL 3590VHR Very High Resolution
Digital Electronic Calibrators
Epsilon's very high resolution calibrator features 0.8 microinches (20 nanometers) resolution and has 2 inches (50 mm) of measuring range. The 3590VHR is provided with software to display the calibrator readings and optional netbook PC or digital display. The 3590VHR calibrator meets the accuracy and resolution requirements for ASTM E83 Class B-1 for a 6 mm gauge length and greater extensometers and ISO 9513 Class 0,5 over the full measuring range of the calibrator.
EPSILON IS ONE OF THE ONLY COMPANIES IN THE WORLD WITH THE CAPABILITY TO PERFORM FULL SYSTEM CALIBRATIONS ON HIGH RESOLUTION EXTENSOMETER CALIBRATORS.
The 3590VHR uses a coarse adjustment screw for large displacements, coupled with a fine adjustment screw that allows fine adjustment to within approximately 0.025 microns (about 1 micro inch). When it comes time to calibrate your extensometers, these calibrators are easier to use and faster than any others on the market. They have enough measuring range to calibrate nearly all extensometers, and enough resolution to calibrate units with low measuring ranges.
The software provided reads in both inches and millimeters. The autozero function is a great help in calibrating. Just activate it to start readings from zero. The digital display reduces operator error.
A wide range of adapters are available. The calibrator comes with smooth round adapters, of 0.375 inches diameter (9.52 mm). For special adapters, contact Epsilon. For very long gauge length extensometers, an optional extension post is available. The calibrator is provided with a calibration traceable to NPL (UK standards organization).
3590VHR Features
(High Resolution)
- Scale calibration traceable to NIST.
- System fully calibrated traceable to NPL (UK standards organization).
- Software for Windows-based PC provided; a PC with a USB port is required.
- Optional Netbook PC or stand-alone display available.
- Readings taken on the PC with included software may be save to a data file.
- Uses the same adapters as the model 3590 and 3590HR calibrators.
- Provided with a foam-lined storage case.
CERTIFIED
Specifications
Measuring Range: 2 in (50 mm) maximum displacement
Maximum Range: 0-5 in (125 mm) (maximum gauge length + displacement)*
Accuracy: ±7.5µin (±0.19 µm) over any 0.00475 inch (0.12 mm) range
Meets ASTM E83 Class B-1 for a 6 mm gauge length and greater extensometers and ISO 9513 Class 0,5 over the full measuring range of the calibrator.
Resolution: 0.8 µin (20 nm)
Temperature Range: 18°C to 28°C (64°F to 82°F) operation**, -10°C to 60°C storage (14°F to 140°F)
Relative Humidity: <90% (Non-condensing)
Connectivity: USB 1.1 & 2.0 interface, self-powered
Weight: 8 lbs (standard configuration)*
Adapters: Ø0.375" (9.52mm) posts included*
EMC Compliance: BS EN 61326-1: 2006
Environmental: EU Directive 2011/65/EU (RoHS)
* Other options available upon request
** Recommended range
OPTIONS FOR AVAILABLE ADAPTER SETS
3590-01 Smooth round posts, 0.25 inches diameter (6.35 mm)
3590-02 Adapters for flat specimens
3590-03 Adapters for clip-on fracture mechanics gages
3590-04 Transverse extensometer adapter (Model 3560)
3590-11 Transverse extensometer adapters
(Models 3575AVG,3575, 3475, 3580, 3565, 3911 and 3975)
3590-05 Circumferential extensometer adapters (Model 3544)
3590-06 Adapters for large averaging extensometers
(Models 3442RA and 3542RA)
3590-07 4 inch (100 mm) extension post for long gauge
length extensometers
3590-55-10 10 inch (250 mm) extension post for long gauge
length extensometers
3590-55-24 24 inch (600 mm) extension post for long gauge
length extensometers
Standards Labs in most countries have signed a Mutual Recognition Arrangement CIPM MRA. This includes the NPL in the UK, NIST in the USA and many others. This makes them effectively traceable to each other. Services of the NPL are equivalent to those offered by NIST and are recognized by NIST through this agreement of reciprocity. bipm.org/en/cipm-mra/