Model UTG Ultrasonic Thickness GaugeSpecifications - Installation and Operating InstructionsBulletin TE-UTGDWYER INSTRUMENTS, INC. Phone: 219/879-8000www.dwyer-inst.comP.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057e-mail: info@dwyer-inst.com4-23/32[120.00]2-7/16[62.00]1-3/16[30.00]2-23/64[60.00]UTCULTRASONIC THICKNESS GAUGESELECTVEL.CAL.mminchThe compact Model UTG Ultrasonic Thickness Gaugecan measurethe thickness of a variety of materials. The UTG has a wide range ofapplications including industrial, automotive, HVAC, and plumbing. TheUTG reads in inches or millimeters, and features an adjustable soundvelocity to allow for an array of materials to be measured. The UTG isuseful when using any pipe-mount ultrasonic transmitter. The UTGallows the user to find the wall thickness of the pipe when programmingan ultrasonic transmitter without cutting or removing a section of the pipeto measure it. The UTG is also great for monitoring corrosion in closedvessels such as boilers and chemical tanks. MATERIAL SELECTION1. Press the Power button to turn on the unit.2. Press the Select button and the display will show the code `Cdxx` or`XXXX`. `Cd` is the abbreviation for `code` and `xx` is one numberamong 01~11. `xxxx` is a 4-digit number which is the sound velocity ofmaterial defined by the user. The `Cdxx`-material relationship is asfollows.3. Press the Up button or Down button to select the material code tomeasure, and then press the Select button to confirm. The display willshow `0`. If you select a material code but do not confirm the selection,the code will automatically change to `0` after several seconds. In suchcase, the meter will still reserve the material code before exiting.4. A 4-digit number will be shown on the display when the Up button ispressed when the display shows `Cd11` or by pressing the Down buttonwhen the display shows `Cd01`. The 4-digit number is the last soundvelocity to be define by the user. By selecting this velocity, you couldmeasure the thickness of the same material as previously selected.SPECIFICATIONS:Service: Steel, cast iron, aluminum, red copper, brass, zinc, quartzglass, polyethylene, PVC, gray cast iron, nodular cast iron, other.Selectable option for special materials with known sound propagationrate.Range: 0.047 to 7.874˝ (1.2 to 200 mm).Accuracy:±0.5%.Resolution:0.001˝ / 0.1 mm.Sound Velocity:1118 to 20132 mph (500 to 9000 m/s).Temperature Limits:32 to 122°F (0 to 50°C).Humidity Limit:< 80%.Display:4 digits, 0.394˝ (10 mm) LCD.Power Requirement:(4) 1.5 V AAA alkaline batteries, not included, userreplaceable.Weight:5.78 oz (164 g).Agency Approvals:CE.No.123456789101112CODEcd01cd02cd03cd04cd05cd06cd07cd08cd09cd10cd11xxxxMaterialSteelCast IronAluminumRed CopperBrassZincQuartz GlassPolyethylenePVCGray Cast IronNodular Cast IronSound Velocity5. It is unnecessary to select the material code once the material code isconfirmed (automatically stored to the memory of the meter) unless thematerial to measure is different from before.6. To browse the material code selected, press the Select button. To quitbrowsing, press the Select button again or wait till the code automaticallychanges to `0` after several seconds or the meter will automatically returnto measurement state if measuring.CALIBRATION1. Drop a little lubricating oil on the 5 mm standard block (see below).2. Press the Calibration (CAL) button, and the word `CAL` will be shownon the display.3. Press the sensor on the standard block. If the coupling symbol ison the display and the standard block is coupling well, `5.0` mm (or`0.197`”) and `CAL` will be shown on the display also. When the readingis steady, press the CAL button to confirm and then the unit will return tomeasuring state.4. The calibration result will be auto-saved to the unit once confirmed. Itis unnecessary to calibrate frequently unless you suspect an inaccuracyin the measurement.MEASURING PROCEDURE1. Press the Power button to turn on the unit.2. Press the mm/inch button to select the right measurement unit.3. Apply a little lubricating oil onto the sensor, and be sure that there is agood coupling and the symbol is on. Press the sensor onto thematerial surface to measure on the premise that the material codeselected is right. The reading on the display is the measurement value.4. The reading is held until a new measurement value is made. The lastvalue is held on the display until the unit is powered off.5. There are 2 methods to turn off the power to the unit. Manual shut offcan be done at any time by pressing the power button, or auto power offsignified by a beeping sound that occurs after about 1 minute from the lastkey operation.MEASURING BY VELOCITY SETTING1. Press the VEL. button and the display will show the velocity that wasset last.2. If measuring the thickness of a material with known velocity, thevelocity can be changed by pressing the Up or Down button to the valueof the known velocity. The increment is in 10 m/s every time whenpressing the up or down button, and increment of 100 m/s if pressing thebutton for more than about 4 seconds.3. Drop a little lubricating oil onto the material to be measured and pressthe sensor onto the surface. The reading on the display is the thicknessof the material if the sensor is coupling well. 4. When measuring the thickness of a sample with a known thickness justget the sample of known thickness. Then repeat the last two steps untilthe measurement value is the same as the known thickness. In such acase, the set value is the velocity of the material to measure, with thisprocess you can measure any unknown thickness of same material.5. To browse the velocity, press the VEL. button. To quit browsing, pressthe VEL. button again or wait till the unit automatically shows `0`.6. By using the velocity measurement, it is easy to measure the thicknessof any hard material.BATTERY REPLACEMENT1. When the battery symbol appears on the display, it is time to replacethe batteries.2. Remove the battery cover from the instrument and remove thebatteries.3. Install the new batteries ensuring to pay close attention to the polarity.MAINTENANCE/REPAIRUpon final installation of the Model UTG, no routine maintenance isrequired. The Model UTG is not field serviceable and should be returnedif repair is needed. Field repair should not be attempted and may voidwarranty.WARRANTY/RETURNRefer to “Terms and Conditions of Sales” in our catalog and on ourwebsite. Contact customer service to receive a Return GoodsAuthorization number before shipping the product back for repair. Besure to include a brief description of the problem plus any additionalapplication notes.DWYER INSTRUMENTS, INC. Phone: 219/879-8000www.dwyer-inst.comP.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057e-mail: info@dwyer-inst.com©Copyright 2013 Dwyer Instruments, Inc.Printed in U.S.A. 11/13FR# R2-444087-00Standard BlockNext >