Brand: Proceq

Proceq Silver Schmidt OS8200 Optical Rebound Hammer

Name: Proceq Silver Schmidt OS8200 Rebound Hammer | Seven Star LLC
Brand: Proceq
SKU: OS8200

Description

An optical rebound hammer that reports concrete strength to an app in minutes

The Silver Schmidt OS8200 is Proceq’s connected rebound hammer for estimating the compressive strength and uniformity of concrete. Instead of the classic mechanical rebound value it uses optical rebound-velocity sensing, a quotient that Proceq says is independent of the impact angle, so a test overhead or on a wall needs no angle correction. The hammer pairs over Bluetooth with an iOS or Android phone that is not included, where the Schmidt Live app stores the series, applies conversion curves and builds reports.

Two hammer types are offered. The type N has an impact energy of 2.207 Nm and covers normal and high strength concrete from 10 to 100 MPa, and up to 120 MPa for ultra-high performance concrete as printed in the flyer. The type L has 0.735 Nm and, with the optional mushroom plunger, is intended for fresh and low strength concrete of 5 to 30 MPa.

Features printed in the datasheet

Optical rebound velocity quotient technology, impact angle independent
Voice read-out of each impact on iOS, logbook with geolocation, audio, image and text notes
Series statistics and single series reporting as PDF or CSV
Test-region reporting with uniformity report and EN 13791 characteristic strength report
Cloud synchronization and cloud-based report generation
Built-in and user-defined conversion curves, form factor and carbonation correction
Removable AAA battery, flight-safe, more than 20000 impacts per charge

Technical specifications

Parameter	Specification
Model types	Silver Schmidt OS8200 N and L; Print variants include a Bluetooth printer
Technology	Optical rebound velocity quotient; impact angle independent
Impact energy	Type N 2.207 Nm; type L 0.735 Nm
Probe weight	Type N 1.08 kg; type L 0.84 kg
Measuring range, normal and high strength	10 to 100 MPa (1450 to 14500 psi)
Ultra-high performance concrete	Up to 120 MPa (17405 psi), type N
Fresh concrete (with mushroom plunger)	5 to 30 MPa (725 to 4351 psi), type L
Display	100 x 100 px back-lit digital display on the hammer; analog display; phone as processing unit
Connectivity	Bluetooth 4.0 EDR Low Energy to iOS or Android device; USB for charging and updates
Rebound value calculation	EN 12504-2; ASTM C805; JGJ-T23; JSCE; JIS; mean
Units	N/mm2, MPa, psi, kg/cm2
Form factor correction	Cube, 2:1 cylinder, 1:1 core, user-definable
Carbonation correction	User-definable
Reference curves	Europe, China and Russia; custom curves
Memory	About 20000 impacts; maximum 70 impacts per series
Battery	1 x AAA, alkaline or rechargeable; autonomy above 20000 impacts
Operating temperature / humidity	0 to 50°C / below 95 % RH non-condensing
Storage temperature	-10 to 70°C
Verification options	EN 12504-2; manufacturer recommendation; JGJ-T23; anvil reminder and guidance
Languages of the app	English, German, Japanese, Chinese, Korean, Spanish, Portuguese, Italian, French, Russian
Standards listed on the product page	ASTM C 805; EN 12504-2; EN 13791; GOST 22690; guidelines ACI 228.1R and RILEM TC-ISC

Selecting type N or L and the accessories

Proceq lists four reference variants on the product page. Choose the hammer energy by the concrete you will test, and decide whether you need the printer.

Code position	Options
OS8200 N	Reference 341 50 000: type N hammer, rechargeable AAA battery, Micro-USB cable, grinding stone and set items
OS8200 Print N	Reference 341 52 000: as above with the Bluetooth printer
OS8200 L	Reference 341 51 000: type L hammer for low strength and fresh concrete
OS8200 Print L	Reference 341 53 000: type L with printer
Portable anvil	34101401, for on-site verification as recommended by EN 12504-2
Testing anvil	34110400, for regular calibration checks
Mushroom plunger	34190005, for the type L on fresh or low strength concrete
Bluetooth printer set	34001067, usable with OS8000, OS8200, PS8000 and RS8000

Installation and operating notes

Verify the hammer on the anvil before a test campaign. The app reminds the user when a verification check is due and guides the procedure, and Proceq recommends the anvil check described in EN 12504-2.

Proceq warns that no single correlation curve fits every concrete. Unless a standard supplies a curve, calibrate the hammer on the concrete under test with a custom materials curve; the product page suggests the lower 10th percentile curve or the EN 13791 screening test as a conservative estimate.

The phone is not supplied; check that your device is supported by the app.

Concrete assessment in GCC projects

Rebound testing is used to compare the strength of columns, slabs and precast elements across a structure, and to find weaker zones before coring. In GCC construction the same hammer serves building, bridge, tank foundation and marine structure inspection.

Rebound values describe the near-surface zone and depend on surface carbonation, moisture and age, so the estimate supplements and does not replace core testing where a specification demands it. This is general engineering guidance.

Information to send with an RFQ for the Proceq OS8200

Send the information below to receive a quotation for the OS8200.

Hammer type N or L, with or without the Bluetooth printer
Expected concrete strength range and the standard to be followed
Anvils, mushroom plunger and calibration certificate requirement
Smartphone platform that will run the Schmidt Live app

Calibration note

Check the hammer on its test anvil at regular intervals, as described in the manual, and record the results.

Frequently asked questions

What types of Silver Schmidt OS8200 exist?

Type N with 2.207 Nm impact energy and type L with 0.735 Nm, each also in a Print variant.

Is the result affected by the impact angle?

Proceq states that the optical rebound velocity quotient is intrinsically impact angle independent, so no correction is needed.

What strength range is covered?

10 to 100 MPa for normal and high strength concrete; up to 120 MPa for UHPC with type N; 5 to 30 MPa with the mushroom plunger on type L.

How does the hammer connect?

By Bluetooth 4.0 Low Energy to an iOS or Android device that is not included.

How many impacts does it store?

About 20000 impacts, with a maximum of 70 per series.

Datasheets & Documents

Datasheet Proceq Silver Schmidt OS8200 product specification flyer (PDF) Download

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About brand

Proceq is a Swiss maker of non-destructive testing and measurement instruments for concrete and other construction materials, founded in 1954 and based in Schwerzenbach, Switzerland. It is part of Screening Eagle Technologies. Its catalogue covers rebound hammers, portable hardness testers, ultrasonic pulse velocity and pulse echo instruments, cover meters, resistivity meters and pull-off adhesion testers.

Instruments for concrete and structure assessment

Proceq documentation describes uses such as estimating concrete strength with rebound hammers, mapping rebar cover, testing pile integrity, finding voids and delaminations with ultrasound, measuring concrete resistivity and checking coating adhesion. Many current instruments pair a sensor with an iPad or smartphone app, and the datasheets state ranges, accuracy and applicable standards such as EN 12504 and ASTM C1383.

Proceq instruments from Seven Star LLC

Seven Star LLC in Muscat sources Proceq instruments for construction, quality control and inspection work in Oman and the GCC. The manufacturer manual or datasheet is supplied with each product page so the model, range, accessories and standards can be checked before an enquiry is sent.