OPERATOR’S MANUAL NORBAR TORQUE TOOLS LTD Beaumont Road, Banbury, Oxfordshire, OX16 1XJ UNITED KINGDOM Tel + 44 (0)1295 270333 Email [email protected] NORBAR TORQUE TOOLS PTE LTD 194 Pandan Loop #07-20 Pantech Business Hub SINGAPORE 128383 Tel + 65 6841 1371 Email [email protected] NORBAR TORQUE TOOLS PTY LTD 45–47 Raglan Avenue, Edwardstown, SA 5039 AUSTRALIA Tel + 61 (0)8 8292 9777 Email [email protected] NORBAR TORQUE TOOLS (SHANGHAI) LTD E Building–5F, no. 1618 Yishan Road, Minhang District, Shanghai CHINA 201103 Tel + 86 21 6145 0368 Email [email protected]ar.com.cn NORBAR TORQUE TOOLS INC 36400 Biltmore Place, Willoughby, Ohio, 44094 USA Tel + 1 866 667 2279 Email [email protected] NORBAR TORQUE TOOLS INDIA PVT. LTD Plot No A-168, Khairne Industrial Area, Thane Belapur Road, Mahape, Navi Mumbai – 400 709 INDIA Tel + 91 22 2778 8480 Email [email protected] ANNULAR TORQUE TRANSDUCER AND AMPLIFIER FOR USE WITH ELECTRONIC TRANSDUCER SYSTEM (E.T.S) www.norbar.com NORBAR TORQUE TOOLS (NZ) LTD B3/269A Mt Smart Road Onehunga, Auckland 1061 NEW ZEALAND Tel + 64 9579 8653 Email [email protected] © Norbar Torque Tools Ltd 2014 Part Number 34147 | Issue 4 | Original Instructions (English) CONTENTS Introduction 2 Specifications 2 Amplifier and Transducer Connections Amplifier Amplifier Controls Amplifier Pin Layout Annular Torque Transducer Wiring Diagram 3 3 4 4 5 ® Annular Transducer to Pneutorque Conversion Chart 6 Torque Tightening for Reaction Plate Bolts 6 Transducer Lead for ETS 7 Application of Annular Transducers on Handtorque TM Gearboxes 8 1 INTRODUCTION The ETS Annular Torque Transducer comes with its own matching amplifier module and shares the same serial and model number. Transducers can be calibrated in either N∙m, lbf∙ft or lbf∙in as standard, but other units of Torque are available i.e. cN∙m, dN∙m, Kgf∙cm and Kgf∙m. The transducer torsion tube is made from heat treated stainless steel on to which are bonded strain gauges which are wired to form a Wheatstone bridge. The strain gauges vary their resistance in direct proportion to the Torque applied. The small change in resistance causes a change in voltage across the bridge that is then amplified by the amplifier module. The amplifier module is calibrated to each transducer and at it’s heart is an Instrumentation Amplifier. Housed within the amplifier module are the bridge balance potentiometers, gain setting potentiometer and bridge test potentiometer along with the range and decimal point coding resistors. The whole is potted in silicon rubber within a plastic shell. The amplifier operates from supplies of a +/- 10v and a constant current of 20mA which is delivered to the bridge via the zero network. The output voltage from the amplifier is fed to the internal circuitry of the ETS. SPECIFICATIONS Accuracy: See calibration certificate supplied with transducer. Amplifier Output: 1.0000 volts Full Scale Defection for N∙m. 1.3558 volts Full Scale Defection for lbf∙ft. 1.1299 volts Full Scale Defection for lbf∙in. 0.9807 volts Full Scale Defection for Kgf∙m Amplifier Power Requirement: +/- 10v D.C. Regulated. Constant Current: 20mA +/- .01 mA Operating Temperature Range: -10ºC - +50ºC Storage Temperature Range: -20ºC - +70ºC Temperature Co-efficient: <+/- 0.01%/ºC. Full Scale Defection on zero <+/- 0.03%/ºC. Full Scale Defection on span Maximum Working Overload: 120% of rated capacity Absolute Maximum Torsion: 150% of rated capacity NOTE: 2 If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment could be impaired. AMPLIFIER AND TRANSDUCER CONNECTIONS Amplifier Pin 1: Constant current 20mA. input to amplifier. Pin 2: +10 volt supply. Pin 3: Amplifier output. Pin 4: Select decimal point output to ETS. Pin 5: 0v common, (Connected to Pin F of Transducer via Transducer lead). Pin 6: Input from Strain Gauge Bridge, (Connected to Pin A of Transducer via Transducer lead). Pin 7: Select Range output to ETS. Pin 8: Input from Strain Gauge Bridge, (Connected to Pin B of Transducer via Transducer lead). Pin 9: -10 volt supply. Pin 10: Test switch input, Shorted to Pin 11 when Test button pressed. Pin 11: Supply to Bridge from amplifier, (Connected to Pin D of Transducer via Transducer lead). Pin 12: Supply to Bridge from amplifier, (Connected to Pin C of Transducer via Transducer lead). Pin 13: Not Used. 3 Amplifier Controls TOP The adjustments available are as follows: Fine Zero: To remove any temperature drift effect or non-zero reading. Coarse Zero: Used for initial bridge balancing, this potentiometer is covered by the label and should not need adjustment. Test: When the TEST switch on the ETS back panel is pushed and held in, the ETS display should read the full scale capacity to which the transducer has been calibrated. This is only for indication purposes only and not a calibration check. This potentiometer is covered by the label and should only need adjustment if the span potentiometer is adjusted. Span: This potentiometer is used to calibrate the amplifier to the transducer when the full scale Torque is applied to the transducer. This potentiometer is covered by a green tamper proof label and should only need adjustment if recalibrating the transducer. Amplifier PIN Layout TOP BACK VIEW 4 Annular Torque Transducer Wiring Diagram NOTE: Colours in brackets refer to transducers pre August 2000. Resistance Between Terminals A to F 350 OHMS B to F C to F 350 OHMS 700 OHMS D to F C to D 700 OHMS 1400 OHMS Bridge Signals A B Signal Out Signal Out C and D F Positive Excitation Negative Excitation 5 ANNULAR TRANSDUCER TO PNEUTORQUE® CONVERSION CHART Pneutorque Model PT1 PT1A PT2 PT5 PT6 PT7 PT9 PT11 PT13 PT14 ® Annular Transducer Capacity 1000 lbf∙ft 1000 N∙m 1000 lbf∙ft 1500 N∙m Output Torque ® of Pneutorque 500 lbf∙ft 680 N∙m 900 lbf∙ft 1200 N∙m 1250 lbf∙ft 1700 N∙m 2500 lbf∙ft 3400 N∙m 2500 lbf∙ft 3400 N∙m 4500 lbf∙ft 6000 N∙m 7000 lbf∙ft 9500 N∙m 14700 lbf∙ft 20000 N∙m 35000 lbf∙ft 47000 N∙m 73500 lbf∙ft 100000 N∙m Part Number 50071.ETS 50070.ETS 50071.ETS 50072.ETS2 2500 lbf∙ft 2500 N∙m 50073.ETS 50074.ETS 5000 lbf∙ft 5000 N∙m 7000 lbf∙ft 10000 N∙m 10000 lbf∙ft 10000 N∙m 50000 lbf∙ft 50000 N∙m 100000 lbf∙ft 100000 N∙m 50075.ETS 50076.ETS 50077.ETS2 50078.ETS 50082.ETS 50081.ETS 50080.ETS 50085.ETS 50154.ETS 50143.ETS TORQUE TIGHTENING FOR REACTION PLATE BOLTS 6 Bolt Size lb∙ft N∙m 2 BA 7 9 ¼ BSF 14 19 ⅜ BSF M5 55 9 75 12 M6 M8 13 32 17.5 43 M 10 M 12 61 115 83 155 M 16 230 310 TRANSDUCER LEAD FOR ETS (Not Included) FREE SOCKET FREE PLUG Free Plug viewed from cable end Free Socket viewed from cable end Cable Connectors NOTE: A Red (White) B C Blue (Green) Green (Red) D E Yellow - F Black (Blue) Colours in brackets refer to transducer leads pre August 2000. 7 APPLICATION OF ANNULAR TRANSDUCERS ON HANDTORQUETM GEARBOXES To appreciate the operation of an Annular Transducer on a Handtorque of the following: TM gear box, users need to be aware TORQUE ON TRANSDUCER (T reaction) = OUTPUT SQUARE DRIVE TORQUE (T output) - INPUT TORQUE (T input) The reason for this is that the annular transducer measures the reaction torque, not the applied torque and part of the reaction torque is taken by the operator when the input to the multiplier is loaded For the Handtorque TM gearbox shown below there are three external torques applied. 1. The torque applied by the operator through the torque wrench. ( T input = F in x L in ) 2. The torque applied to the annulus by the reaction force acting on the reaction plate. (T reaction = Fr x Lr ) 3. The resistive torque of the fastener applied to the gearbox through the drive square. (T output) This phenomenon only exists while the multiplier input is being loaded, so if an Anti Wind-up Ratchet is used, measured torque will equal output torque when the input toqrue has been released. 8 OPERATOR’S MANUAL NORBAR TORQUE TOOLS LTD Beaumont Road, Banbury, Oxfordshire, OX16 1XJ UNITED KINGDOM Tel + 44 (0)1295 270333 Email [email protected] NORBAR TORQUE TOOLS PTE LTD 194 Pandan Loop #07-20 Pantech Business Hub SINGAPORE 128383 Tel + 65 6841 1371 Email [email protected] NORBAR TORQUE TOOLS PTY LTD 45–47 Raglan Avenue, Edwardstown, SA 5039 AUSTRALIA Tel + 61 (0)8 8292 9777 Email [email protected] NORBAR TORQUE TOOLS (SHANGHAI) LTD E Building–5F, no. 1618 Yishan Road, Minhang District, Shanghai CHINA 201103 Tel + 86 21 6145 0368 Email [email protected] NORBAR TORQUE TOOLS INC 36400 Biltmore Place, Willoughby, Ohio, 44094 USA Tel + 1 866 667 2279 Email [email protected] NORBAR TORQUE TOOLS INDIA PVT. LTD Plot No A-168, Khairne Industrial Area, Thane Belapur Road, Mahape, Navi Mumbai – 400 709 INDIA Tel + 91 22 2778 8480 Email [email protected] ANNULAR TORQUE TRANSDUCER AND AMPLIFIER FOR USE WITH ELECTRONIC TRANSDUCER SYSTEM (E.T.S) www.norbar.com NORBAR TORQUE TOOLS (NZ) LTD B3/269A Mt Smart Road Onehunga, Auckland 1061 NEW ZEALAND Tel + 64 9579 8653 Email [email protected] © Norbar Torque Tools Ltd 2014 Part Number 34147 | Issue 4 | Original Instructions (English)
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