INDEX Page SERVICE & GUARANTEE

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1 SERVICE & GUARANTEE The quality standards applied to the inspection, test and calibration of AUDIT Ultrasonic Thickness Gauges are in accordance with ISO 9001: 2008 quality control procedures and all measurements are traceable to national standards. INDEX Page 1. INTRODUCTION Cautionary information Standard Schedule of Equipment Optional Equipment 4 2. TECHNICAL SPECIFICATION Thickness Range Accuracy & Calibration Power Supply Temperature Range Environmental Protection Electromagnetic Compatibility 5 3. PRINCIPLE OF OPERATION 6 4. DIRECTIONS FOR USE Preparation Transducer ZERU Calibration Thickness Measurement Two point Calibration Metric Imperial Mode change Scan Mode Fit Batteries Other Indications During Use Limitations OPERATION AND APPLICATION INFORMATION Basic Technique Effect of Surface and Hot Conditions Painted Parts Couplant Transducer Wear CARE & MAINTENANCE HEALTH AND SAFETY SERVICE AND GUARANTEE OF EQUIPMENT Guarantee How to make a Guarantee Claim Service Repairs and Maintenance Certification 20 Page 20 Page 1 INTRODUCTION SERVICE & MAINTENANCE 1. INTRODUCTION. The AUDIT 207 is a Precision Ultrasonic Thickness handheld gauge for fast and accurate metric or Imperial measurement of the thickness of a wide range of metals and plastics materials, performed with access to only one side of the material being measured. This handbook describes the instrument and how to use it to its best advantage. 1.1 Cautionary information. The AUDIT 207 is intended to satisfy a wide range of applications, including corrosion monitoring. However, the user should be aware that corrosion in a pipeline or vessel is not uniform and thickness readings taken on a sampling basis, example testing to a grid pattern may not indicate the most severely corroded areas. It is therefore important that inspection schedules should be developed by competent engineers and that measurement of the integrity of a pipeline or vessel should take account of this factor. In addition, users should be properly trained in the use of ultrasonic thickness gauges and be made aware of the limitations of the equipment and the proposed testing schedule. 8.3 Service Repairs and Maintenance Repairs not covered by the guarantee or carried out after the guarantee period will be charged at the current hourly service rate, plus the cost of materials. Goods for repair must be sent at the Purchaser's expense and be accompanied by the Purchaser's written order describing the defect and authorising the company to invoice the purchaser for labour, materials and return delivery costs. No guarantee or service work will be undertaken until a written order is received. Baugh & Weedon undertakes to offer repair and maintenance services to the AUDIT 207 thickness gauge for a period of not less than five (5) years from the date of original dispatch. The Company cannot make any such undertaking after that period although it will use its best endeavours in every case. Page 2 Page 19

2 SERVICE & GUARANTEE INTRODUCTION 8.2 How to make a Guarantee Claim On receipt of the goods and order the Company will examine the goods and determine the nature and cause of the defect. If the defect is covered by the guarantee a replacement or repair will be effected at the Company's expense. If the defect is not covered by the guarantee the Company will quote the Purchaser for the replacement or repair, and will not proceed until written acceptance of such quotation is received. During the first year of the guarantee the Company will bear the cost of returning guarantee replacement or repaired goods to the purchaser's premises in the country to which the goods were originally delivered. At the purchaser's request and expense, the Company will return goods to other countries. During the second to the fifth year of the guarantee the return of guarantee replacement or repaired goods shall be at the Purchaser's expense. Always adhere to safe local regulatory disposal practise for alkaline batteries used within the AUDIT Instrument. Before using the equipment, operators should make themselves fully conversant with the operating procedures as laid out in this handbook 1.2 Standard Schedule of Equipment Dimension 121 x 70.3 x 32.3mm Weight 295g including batteries The standard equipment package consists of the following. Product AUDIT 207 Thickness Gauge. 0704/A207 Complete with two AA alkaline batteries Plastic Transit/Carrying Case 0704/0175. Probe type 5MHz BD25 DT35 5MHz Operator Handbook. 0704/0201 Ultrasonic Coupling Agent 0704/185 Care should be taken that the couplant used is neither harmful to the operator nor will it attack the probe. For advice please contact Baugh & Weedon. Page 18 Page 3 OPTIONAL EQUIPMENT SERVICE & GUARANTEE 1.3 Optional Equipment Transducer type 2.5MHz BD52 DT35 5MHz/0.25 Transducer type 7.5MHz BD17 DT37 7.5MHz/0.87 Transducer type 5.0MHz BD25 DT39 Hi-Temp 2. TECHNICAL SPECIFICATION 2.1 Thickness Range Interface Echo technique Minimum 0.63mm Maximum 500.0mm in 2.2 Accuracy & Calibration Velocity Range 1200m/s to 10000ms in/µs to in/µs. Resolution: 0.01mm. (0.001 Accuracy: ± 0.01millimeters ±0.001inches Material dependent 2.3 Power Supply Source: 2 x LR6( AA) Alkaline Batteries or rechargeable equivalents Battery life: 50 hours continuous (alkaline dry batteries) Auto power off timer: 5 Minutes. Page 4 8. SERVICE & GUARANTEE OF EQUIPMENT Item 8.1 Guarantee AUDIT 207 is guaranteed for five (5) years, excluding batteries and transducers which have been subject to wear. Baugh & Weedon ("the company") undertakes to make good by sending a replacement or, at it's option, by repairing defects arising from faulty design, material or workmanship within a five (5) year period from the date of dispatch. Your existing consumer rights are not affected by these guarantees and conditions. Always adhere to site rules and guidelines concerning Health & Safety when using the AUDIT 207 Instrument. Always wear safety equipment appropriate to the area where the measurement is to be made. There are no user serviceable parts inside the instrument case of the AUDIT 207 Service work should only be carried out by qualified personnel. Page 17

3 HEALTH AND SAFETY TECHNICAL SPECIFICATION Some organic materials may attack plastic parts and cause early degradation. Contact with such materials should be avoided. 7. HEALTH AND SAFETY AUDIT 207 thickness gauge and accessories are NOT intrinsically safe or flameproof, and should not be used in hazardous areas without the necessary local precautions being enforced for the use of nonintrinsically safe equipment. Always adhere to site rules and guidelines concerning Health & Safety when using the AUDIT Instrument. Always wear safety equipment appropriate to the area where the measurement is to be made. There are no user serviceable parts inside the instrument case of the AUDIT 207 Service work should only be carried out by qualified personnel. Care should be taken that the couplant used is neither harmful to the operator nor will it attack the probe. For advice please contact Baugh & Weedon. Ultrasonic Coupling Agent (Hydrophilic Type) SURTEST UCA-2. Safety Data Sheets supplied on request. Backlight is operated by the UNIT key, selectable on/off Low battery is indicated by the battery symbol located at the top right of the display.10 hours use available. In normal use battery life will be much greater than the above specification. This is due to the intermittent use of the instrument rather than a continuous test, detailed above. 2.4 Temperature Range Operational -20 to + 50 C Case : Extruded aluminium body, Anodized aluminium. 2.5 Environmental Protection Sealed and rating to IP Electromagnetic Compatibility Radiated Emission Standard EN EN (Electric discharge) EN Criterion A EN (Electric fields) Radiated EM field Immunity EN Criterion B Page 16 Page 5 EC Declaration of Conformity PRINCIPLE OF OPERATION UNIT Audit 207 Ultrasonic Thickness Gauge WEE compliance Registration No WEE/FK0103WV The equipment is supplied in a single commercial carton, containing the items previously detailed, ensure that all the items of equipment are accounted for when unpacking. Equipment should be examined for signs of transit damage. Damaged equipment SHOULD NOT BE USED. Retain the carton in the event the equipment has to be returned to the manufacturer for period certification. 3. PRINCIPLE OF OPERATION AUDIT 207 measures thickness by injection of a short burst of high frequency sound (ultrasound) into the work piece and measuring the time taken for the burst to travel through the material and be reflected back from the far surface. As the velocity at which the sound travels is constant for a given material the thickness can be computed and displayed. Thickness readings are held for 5 Minutes after the probe is removed from the work piece. Page 6 6. CARE & MAINTENANCE CARE AND MAINTENANCE This equipment is protected against hostile environments as defined in section 2.5 and is designed for prolonged use in the field without any special maintenance other than routine cleaning. All connectors should be kept free of foreign matter and the transducer face regularly cleaned with soft material such as tissue paper. To ensure trouble free operation, when not in use the AUDIT 207 thickness gauge should be returned to the carrying case in a clean condition. This equipment should only be operated by qualified personnel. Transducers and leads are consumable items and are subject to wear and deterioration during use. The life of these parts can be much extended by keeping them in a dry, clean condition, and storing them in suitable protective containers. During use avoid 'scrubbing' the probe face on the work piece. Only take spot measurements at the selected locations. Page 15

4 COUPLANT DIRECTION FOR USE 5.4 Couplant For all applications the AUDIT 207 Instrument must have it's transducer coupled to the work piece using a suitable coupling fluid. In practice this can be a variety of fluids such as oil, water, or other types of proprietary ultrasonic couplant preparations. We the manufacturers of AUDIT 207 supply within the standard schedule of equipment. Ultrasonic Coupling Agent (Hydrophilic Type) Trade Name SURTEST UCA-2. (See section 7) 5.5 Transducer Wear Care should be exercised when taking readings not to "scrub or drag" the transducer face material over the surface of the work piece. This resultant wear causes the length of the transducer tip to reduce and can cause the probe faces to become uneven. This can cause poor coupling, making stable readings harder to obtain. Be careful when using transducer in SCAN mode use plenty of couplant and slide the transducer face carefully across material. The velocity used for calculation is that of steel. It is a simple matter to convert the reading for other common materials by using the appropriate Velocity. Through the CAL key operation. Fit batteries see section 4.4. sockets top plate. 4. DIRECTIONS FOR USE 4.1 Preparation Connect transducer to Press the ON/OFF key. Start up Display information. Active software Version. Followed by B&W LOGO 5 thick bars visible across screen plus and at top left gain stability level. Bottom left velocity and bottom right mm (metric) or in (Imperial) mode. 4.2 Transducer ZERO Calibration At this stage a check to match the transducer with the gauge is required, by placing the transducer on the battery and ZERO calibration cap, using a suitable couplant a stable count will be displayed, press ZERO key. Spare transducer are available from the manufacturers and it is recommended that a seriously worn transducer be replaced. Page 14 Page 7 PRINCIPLE OF OPERATION OPERATION Do not attempt to carry out this Transducer to gauge ZERO check on any other test block or material other than the test block mounted on the top panel, as this will lead to a discrepancy in the thickness readings. 4.3 Thickness Measurement Place probe on 10mm mild steel step wedge ( or any known test block ) press CAL key, adjust the up down keys to display 10.00mm, press CAL key, the set velocity is displayed. Press CAL key place probe and read thickness,if the display thickness is well out of specification, press CAL key until velocity value is visible, using up down keys adjust velocity required. 4.4 Two Point Calibration 1. Place the probe on the highest known thickness of the 2. Press CAL key until (set thickness is displayed), using Page 8 measurement., it is recommended that the user perform a calibration procedure on a sample piece of known thickness, which is at, or near, the temperature of the work piece. There is a point, however, when the signal strength is marginal. Under these conditions the AUDIT 207 may display a small amount of signals within the stability indicator. The user will be aware of this situation because it is likely that the effect will change dramatically if the location of the probe on the work piece is changed slightly. Apply more couplant or clean the surface more thoroughly. Attempt to take readings at other points close to and around the original location. 5.3 Painted Parts If the paint is thin in relation to the work piece as a whole and is well bonded, very little error will be observed in displayed thickness reading. A poor bond between the paint and metal however, may result in AUDIT 207 trying to read the thickness of the paint layer only. Page 13

5 OPERATION PREPARATION If at any point while taking readings a low battery symbol is displayed at the top right of the display, this is an indication that the batteries need to be changed within the next 10 hours of operation. If the batteries are not changed the AUDIT 207 will stop functioning at a pre-set voltage and the display will blank, the instrument will remain in calibration throughout shut down. It is good practice to carry out transducer to gauge ZERO calibration check after batteries are fitted, see section 4.2 When switching off, the gauge retains all of its settings. 5.2 Effect of Surface and Hot Conditions A rough front surface may affect the coupling of sound between the probe and the work piece. A rough rear surface will possibly scatter the measuring beam rather than reflect it. In consequence, rough surfaces tend to reduce the reflected signals required for measurement. Observe the Stability indicator as to the strength of the received signals. Hot temperatures above 100 C the change in soundvelocity of the material being measured starts to have a noticeable effect upon the accuracy of ultrasonic 3. Press ZERO key. 4. Place the probe on the thinner known thickness of the followed by the CAL key (2 nd thickness display) is indicated, using up down keys set this thickness press CAL key. Velocity will automatically enter The Audit 207 is now ready to take readings. 4.5 Metric - Imperial Mode change For Mode change Press UNIT key, you have the capability to display mm or in 6.0mm single decimal point or a second press of UNIT key operation to display 6.00mm high resolution, additional repeated presses of the UNIT key changes calibration from mm to in. low or high resolution. 4.6 Scan Mode SCAN Identifies the minimum thickness measurement obtained whilst the probe is in scanning contact with the material being measured as displayed at the top of the display with live measurements displayed in the centre section, the gauge memorises the lowest measurement it finds. Page 12 Page 9 PREPARATION PREPARATION 4.7 Fit Batteries Locate battery compartment cover and ZERO calibration cap at top of gauge and unscrew cap. Referring to battery polarity instructions on rear panel of gauge, Negative to top cap, insert batteries into gauge ensuring correct polarity. Replace battery compartment cover cap. 4.8 Other Indications During Use Low Battery warning Symbol Top right of Display. First appearance indicates that there are approximately 10 Hours of continuous battery life left. Audit 207 retains all of its settings after switch off. 4.9 Limitations With all types of Ultrasonic Thickness Gauges, the ability to obtain thickness readings is dependent on the capability of the transmitted signal to penetrate completely through and return from the rear surface of the material under test, it is possible due to the composition and or grain structure, of some materials plastics, cast iron etc that limitations to the thickness range is possible, as the material is too attenuative for the ultrasound to penetrate. Page 10 AUDIT 207 can tolerate large changes in signal strength, but ultimately, under very poor conditions, insufficient signal will be received to make a measurement as displayed by the stability indicator for strength of signals. 5. OPERATION AND APPLICATION INFORMATION 5.1 Basic Technique The surface of the work piece to be measured should be cleaned to remove all fouling and other contamination. Surfaces do not have to be entirely flat or smooth, but in general the poorer the surface the less satisfactory it will be for accurate measurements. Prepare AUDIT 207 for use (as previously described). Apply a liberal amount of couplant to the work piece at the point to be measured. lightly press the transducer squarely against the surface and read the thickness value from the digital display. The reading will remain on the display for 5 minutes after the probe is removed from the work piece. Page 11

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7 ALPINE COMPONENTS Postal Address Alpine Components Ltd Innovation Centre, Highfield Drive Churchfields St. Leonards-on-Sea TN38 9UH United Kingdom Telephone Website Address "Alpine Components" is the abbreviated trading name for "Alpine Components Limited" The company has been trading since 1991 and was incorporated on 13/11/2006 in the United Kingdom Company Registration Number: VAT Number: GB