DTT DIGITAL TORQUE TESTER TGT TORQUE: 250 FIRST PEAK 0.0O DATA: 25 MAIN MENU SETUP FT-LB STORE 2503-F-DTT 25 - 250 FT.LB.
Table of Contents Important Safety Instructions .................................................................................. DTT System Components ............................................................................................. Introduction ................................................................................................................... Functional Description ..................................................................................................
DTT Digital Torque Tester IMPORTANT SAFETY INSTRUCTIONS This manual contains important safety and operating instructions for the Digital Torque Tester (DTT). Read All Instructions Read, understand and follow all safety messages and instructions in this manual and on the test equipment. Safety messages in this section of the manual contain a signal word, a three-part message, and, in some instances, an icon. An icon, when present, gives a graphical description of the potential hazard.
DTT Digital Torque Tester General Safety WARNING Improper use can cause breakage. • Read instructions before operating. • Follow manufacturer’s instructions, safety precautions, and specifications when operating tools. Broken equipment can cause injury. Flying particles can be discharged when applying torque. Users and bystanders must wear safety goggles. Flying particles can cause injury. Risk of entanglement. • Keep body parts away from rotating parts.
DTT Digital Torque Tester • • • • • Never attempt to test an impact tool or pulse type tool on this instrument. Mount the DTT securely to a heavy bench, wall or other support structure before applying torque. Do not use the DTT if it makes unusual noises, has loose parts, or shows any other sign of damage. Have repairs performed at an Authorized Service Center before use. Do not use chipped, cracked, or damaged sockets and accessories. Do not remove any labels. Replace any damaged label.
DTT Digital Torque Tester DTT System Components C B A D Figure 1: Digital Torque Tester System Components A — DTT B — AC Adapter AC/DC transformer, Voltage Output: 9VDC, Current 1.
DTT Digital Torque Tester Introduction Use the portable DTT to test “click” type torque wrenches (adjustable and preset), torque screwdrivers, dial indicating and electronic wrenches. The tester features a swivel-neck LCD display with selectable English or Metric units of measure. 11 models are available, ranging from 10-100 IN OZ to 60-600 FT LB. The DTT displays torque values using a built-in straingaged transducer with an accuracy of ±0.
DTT Digital Torque Tester This manual contains general information. Operating features and specifications may change without notice. CDI Torque makes no claims regarding the suitability of the information in this manual for diverse user applications. Power Source The power source for the DTT is the supplied AC Adapter. The tester can also be operated with the use of the 6 AA Battery Pack that accompanies the tester. Functional Description TGT TORQUE: 250 FIRST PEAK 0.
DTT Digital Torque Tester C — Transducer Female square drive. D — Battery Access Battery Pack housing panel. Remove Phillips screw to access Battery Pack. E — Power Switch Rocker switch turns power to tester on and off. F — Audible Alert Signal sounds momentarily when: • Power to tester is initiated, • Anytime a button pressed, and • Target Torque is reached. G — Swivel Holds the display for view from any angle. H — AC Adapter Jack Receptacle (9VDC @ 1.66A max) for continuous AC operation.
DTT Digital Torque Tester Specifications Display LCD on swivel neck Display Specifications Size: 4.7 inch Resolution: 480 (RGB) X 272 Accuracy ±0.5% of indicated test value from 10% to 100% of rated capacity Units of Measurement FT-LB, IN-LB, IN-OZ, KG-CM, Nm and cNm Operating Temperature 0 – 50°C (32 – 122°F) Storage -20 – 70°C (-4 – 158°F) Dimensions Width Height Depth 10.0” 15.2” 2.5” Weight 11 lbs Battery Six 1.5V (AA), replaceable AC Adapter Input Output 100 ~ 240VAC (50-60 Hz) 9VDC, 1.
DTT Digital Torque Tester Transducer Range and Display Resolutions DTT built-in transducers provide industry standard female square drives, and a full bridge strain gage sensing element. Contact your CDI Torque representative for service and/or calibration. IMPORTANT IMPORTANT Apply torque loads only. Never side-load a wrench while installed on the tester transducer. Transducers can withstand a torque of 25% over full range.
DTT Digital Torque Tester Setup Mounting Mount the DTT to a sturdy support before use. Torque testing procedures may involve hundreds of pounds of load. Be sure to consider counterweight of the mount to accommodate torque testing operations and testing fixtures. Allow enough room around and below the mount for the wrenches or testing fixtures being used. Vertical mounting on a wall or heavy pillar is preferred for most wrench and tool testing as shown in the illustration below.
DTT Digital Torque Tester Tester Setup 1. Turn the power switch ON. 2. In the MAIN MENU screen, select DTT SETTINGS. 3. In the SYSTEM CONFIGURATION screen, the display reads: DATE: MONTH / DAY / YEAR TIME: HOUR / MINS BRIGHTNESS: 30-100 4. To increment or decrement the DATE/TIME/BRIGHTNESS elements, select the element and repeatedly press the UP or DOWN arrows. NOTE: Press and hold the UP or DOWN arrows to change the display quickly.
DTT Digital Torque Tester Tests Testing Wrenches IMPORTANT • To avoid damage, be sure the DTT model being used is capable of handling the torque being applied. • Always position a torque wrench within 15° of perpendicular to the display housing (Figure 5). TGT TORQUE: 250 FIRST PEAK 0.0O DATA: 25 MAIN MENU SETUP FT-LB STORE 2503-F-DTT Figure 5: Wrench Position, Perpendicular to Tester Testing Wrenches 1. Prepare tester for use. For additional information refer to TESTER SETUP.
DTT Digital Torque Tester 4. In the SELECT TEST TYPE screen, select either: QUICK CHECK (used when verifying torque wrench readings), or AUDIT (used when testing a torque wrench) Quick Check Mode 5a. If QUICK CHECK is selected in Step 4, the tester will display the TEST SETUP screen (Figure 6). DIGITAL TORQUE TESTER TEST SETUP TGT TORQUE : 250 FT-LB CHANGE SERIAL NUM : 110900MAW CHANGE OPERATOR ID : TECH512 CHANGE MAIN TEST Figure 6: Test Setup screen (Quick Check mode) 5b.
DTT Digital Torque Tester 5c. Press the CHANGE button next to SERIAL NUM to enter a wrench Serial Number if required (Figure 8). NOTE: The WRENCH S/N screen can be changed from Numerical (Figure 8) to Alphabetical (Figure 9) Mode and vice versa by pressing the 0-9 or A-Z key respectively. If the incorrect value is entered, press BS to clear the last digit entered, or press CLEAR to delete the entire entry. The WRENCH S/N screen can be left blank If the Serial Number information is not required.
DTT Digital Torque Tester 5d. Press the CHANGE button next to OPERATOR ID to enter an Operator Identification number if required (Figure 10). NOTE: The OPERATOR ID screen can be changed from Alphabetical (Figure 10) to Numerical (Figure 11) Mode and vice versa by pressing the A-Z or 0-9 key respectively. If the incorrect value is entered, press BS to clear the last digit entered, or press CLEAR to delete the entire entry.
DTT Digital Torque Tester 5e. Press the TEST button to accept all entries and display the QUICK CHECK test screen (Figure 12). NOTE: The operator can return to the TEST SETUP screen by pressing the SETUP button. 5f. Install the wrench on the transducer and apply torque. 5g. Press STORE to save torque measurements in the internal memory. Torque measurements can be offloaded to a PC using the USB cable. For additional information refer to Data Offload. TGT TORQUE: 250 FIRST PEAK 0.
DTT Digital Torque Tester 6b. Press the CHANGE button next to WRENCH SIZE to enter the Full Scale torque and Units of the wrench being calibrated (Figure 14). NOTE: If the incorrect value is entered, press BS to clear the last digit entered, or press CLEAR to delete the entire entry. Press UNITS to scroll between FT-LB, IN-LB, IN-OZ, KG-CM, Nm and cNm units. Press NEXT to accept the entry and return to the TEST SETUP screen.
DTT Digital Torque Tester 6c. The tester will prompt user to set wrench to 20% of Full Scale (Figure 15). For example: If WRENCH MAX RANGE (Step 6b) is entered as 250 FT-LB, the DTT will prompt user to set wrench to 50 FT-LB. Press NEXT. PLEASE SET WRENCH TO 50 FT-LB NEXT Figure 15: Wrench Set prompt screen 6d. The display will change to the 20% test screen (Figure 16). Install the wrench on the transducer.
DTT Digital Torque Tester 6e. The tester will prompt user to set wrench to 60% of Full Scale (Figure 17). For example: If WRENCH MAX RANGE (Step 6b) is entered as 250 FT-LB, the DTT will prompt user to set wrench to 150 FT-LB. Press NEXT. PLEASE SET WRENCH TO 150 FT-LB NEXT Figure 17: Wrench Set prompt screen 6f. The display will change to the 60% test screen (Figure 18). Install the wrench on the transducer.
DTT Digital Torque Tester 6g. The tester will prompt user to set wrench to 100% of Full Scale (Figure 19). For example: If WRENCH MAX RANGE (Step 6b) is entered as 250 FT-LB, the DTT will prompt user to set wrench to 250 FT-LB. Press NEXT. PLEASE SET WRENCH TO 250 FT-LB NEXT Figure 19: Wrench Set prompt screen 6h. The display will change to the 100% test screen (Figure 20). Install the wrench on the transducer.
DTT Digital Torque Tester 6i . At the end of the test sequence, the tester will return to the TEST SETUP screen in order to begin a new test sequence. To continue the test sequence in the CCW direction, press TEST. 6j. Stored torque measurements can be offloaded to a PC using the USB cable. For additional information refer to Data Offload. Data Offload Torque measurements are stored in the internal memory everytime the STORE button is pressed during the testing procedure.
For Warranty Claims, Contact CDI Torque Products LIMITED WARRANTY The DTT Digital Torque Tester is backed by a one year warranty. This warranty covers manufacturer defects and workmanship. The warranty excludes misuse, abuse and normal wear and tear. Exclusion is not allowed in some states and may not apply. This warranty gives you specific legal rights, and you may have other rights, which vary from state to state. 19220 San Jose Ave.
