Surface roughness- a measurement  of the texture of a surface. It is quantified by the vertical deviations of a real surface from its ideal form. If the deviations are large, the surface is rough, if they are small, the surface is smooth.
 

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Surtronic Duo

A portable tool for checking surface roughness

            

 

What it does                                                                                               

Surtronic Duo measures Ra at the touch of a button and shows the result on a large LCD window, Cycle time is about 5 seconds and the result is saved until another measurement is taken.

Additional parameters Rz, Rp, Rv and Rt can be displayed and units of measure switched between inch and metric without re-measuring the part.

There is no setting up or programming of the device, it is ready to use out of the box. Battery life is 5,000 measurements minimum.

How it does it                    

A diamond stylus is drawn across the part. The motorized traverse mechanism is cam driven to ensure that the correct horizontal distance is traveled.

Vertical movement of the stylus as it travels across peaks and valleys is detected by a piezo-electric pick up which converts mechanical movement into an electrical signal.

The electrical signal is digitized and sent to a microprocessor where the parameters are instantly calculated using standardized algorithms.

Keeping it simple                                                                

Surtronic Duo keeps the process simple. It is the perfect tool for any inspector to check roughness anywhere.

Auditing batch production before shipment

Process control on the production line

Quality control on the production line

Checking large components or structures

Splits into two pieces                                                                                                         

The bottom half contains the traverse mechanism and stylus pick up assembly. This is placed on the surface to be measured. It has a wide base to ensure stability.

The upper half includes the large LCD display, start button, mode and parameter buttons. This is held comfortably in the hand for easy operation and clear viewing of the results.

                                

 

Error proof calibration                                                 

Even calibration of the Surtronic Duo is easy and foolproof. First, the operator pushes a button to select calibration mode.

 

Then, using the roughness standard supplied with the instrument, the operator simply measures as usual.

 

Storage of the result and subsequent measurement compensation based on the calibration constant are completely automatic.

Energy efficient by design

Automatic shut-off after 5 minutes of inactivity and a low power consumption LCD help to preserve battery life.

The rapid mechanical traverse and 5 second cycle time conserve enough energy to provide a minimum of 5,000 measurement on a single set of batteries.

Standard off-the-shelf calculator type batteries are used and replacement is easy using a wide blade screwdriver or large coin.

Surface mount digital, technology

Surtronic Duo used modern electronic circuitry and components to optimize performance and extend useful operating life. Outstanding reliability and 5% of reading accuracy are just two of the features rarely found in instruments at this price level.

Pre set to industry standards

Surtronic Duo is configured to measure using the most common industrial settings:

5mm (0.2in) traverse length

0.8mm (0.03in) cut off

2CR filter

5µm (200µin) radius diamond stylus

Pre-setting these critical functions eliminates errors and ensures correlation between multiple operators.

Available in two versions:

Surtronic Duo - 2 parameters                                                                        Reference code 112/2916-03          

For basic roughness checking of parameters Ra and Rz

Surtronic Duo - 5 parameters                                                                        Reference code 112/3115-01   

Includes basic roughness parameters Ra and Rz plus advanced parameters    Rp, Rv and Rt

Both versions include:

Surtronic Duo

● Calibration standard

● Batteries

● Carrying case

● Operation guide

Technical Specifications 
Gauge range200µm (0.008in)
Accuracy5% of reading + 0.1µm (4µin)
Pick up typePiezoelectric
Gauge force200mg
StylusDiamond, Radius 5µm (200µin)
Cut off value0.8mm +15% (0.03in + 15%)
Filter2CR
Traverse length5mm (0.2in)
Traverse speed2mm/sec (0.08in/sec)
Display unitµm / µin
Battery life5,000 operations minimum
Parameter Results 
Code 112/2916-03Ra, Rz
Code 112/3115-01Ra, Rz, Rv, Rp, Rt
ParametersRangeResolution
Ra 40µm (1600µin)0.01µm (0.4µin)
Rz, Rv, Rp, Rt199µm (7800µin)0.1µm (4µin)
Dimensions 
Overall dimensions125x80x38mm (4.92x3.15x1.5in)
Weight200gm (7oz)
Component Dimensions an Conditions 
Min bore65mm (2.6in)
Min diameter25mm (1.0in)
Max temperature35°C (95°F)
Nominal Operating Conditions 
Temperature20°C (68°F)
Humidity0 to 80% non condensing
Storage Conditions 
Temperature0 to 50°C  (32°F to 122°F)
Humidity0 to 80% non condensing
Surtronic Duo Slipmeter

Flooring

The Surtronic Duo is a portable surface roughness instrument that allows the user to measure, analyze and assess the surface of flooring.

HSE Tested and used extensively by HSE inspectors

Supplied with reference standard for traceable results*

Suitable for large or small areas, slopes/ramps and stairs

Use in conjunction with the HSE SAT (Slip Assessment Tool) software

Predicts slipperiness in water-contaminated conditions**

* Optional UKAS certificate traceable to international standards available

** Using measurements taken in dry conditions using the SAT software

Roughness measurement is a prerequisite of the HSE SAT software and the Surtronic Duo is ideally suited to flooring measurements due to its 'remote control' operation.

The Surtronic Duo Slipmeter is used extensively to check flooring safety in hospitals, shopping centers, restaurants, on public transport networks and in local authorities. Flooring manufacturer use the Surtronic Duo to control the roughness in their manufacturing processes and meet the increasingly stringent requirements of their customers.

HSE research has shown that measurement of the Rz parameter allows slipperiness to be predicted for a range of common materials and also to monitor changes in floor surface characteristics such as wear (Rz is a measure of  total surface roughness, calculated as the mean of several peak-to-valley measurements). Use of the hand-held Surtronic Duo requires minimal training and when used in conjunction with the HSE SAT (Slip Assessment Tool) software gives a clear indication of the potential for slip.

The Surtronic Duo is suitable for most flooring types including slopes/ramps and stairs. It is not recommended for use on carpet, undulating or very rough floors. For ease of use, the Duo splits into two parts, allowing the measuring head to be placed on the flooring and the measurement to be made via a 'remote control'. The results can then be used to feed into the HSE software and provide a quantifiable risk assessment.

                     

 

 

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Reference Specimens

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Phone 888-789-7277 * 724-789-7853 * Fax 724-789-7288 Email: sales @rappindustrialsales.com