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Appendix E: Transmitter Gain Configuration 

 
To change the gain setting of the BT9000 transmitter, configure 
the three 

Gain Select

 pads on the exposed circuit board of the 

transmitter according to the following table.  To add a jumper 
simply form a solder bridge connection across the two 
rectangular solder pads.  To remove a jumper, reheat the 
connection to break or remove the solder bridge. (Desoldering 
braid is ideal for this process.) 

Caution: 

Do not apply excessive 

heat to the solder pads! 
 

 

Gain 

Level 

Transmitter 

Gain 

(G

XMT

 
Gain Select 

 

Gain Select 

 

Gain Select 

8000 

don't care 

shorted 

shorted 

4000 

shorted 

open 

shorted 

2000 

open 

open 

shorted 

1000 

shorted 

shorted 

Open 

500 

open 

shorted 

Open 

250 

shorted 

open 

Open 

125 

open 

open 

Open 

 

The transmitter shown here has been configured for Gain Select 
4 (open-open-shorted). 
 

 

 

(Not Used) 

– 

Gain Select 2 

– 

Gain Select 1 

– 

Gain Select 0 

– 

 
 
  

Shorted  
Solder Pads 

Open Solder 
Pads 

Summary of Contents for TorqueTrak 9000

Page 1: ...Digital Telemetry System Users Manual Featuring TorqueTrak All Digital Technology Binsfeld Engineering Inc 4571 W MacFarlane Maple City MI 49664 800 524 3327 231 334 4383 FAX 231 334 4903 www binsfel...

Page 2: ...libration Verification 12 Appendix B TorqueTrak 9000 Specifications 13 Appendix C Calibration Calculations 15 C1 Torque on Round Shafts 16 C2 Axial Strain on Round Shafts 19 C3 Single Grid 1 4 Bridge...

Page 3: ...The user is cautioned that changes and modifications made to the equipment without the express approval of the manufacturer could void the user s authority to operate this equipment Operation is subje...

Page 4: ...idge Transmitter and the RD9000 Receiver The TorqueTrak 9000 features fully encapsulated rotating electronics user selectable input range user selectable transmit receive frequency AutoZero switch set...

Page 5: ...eceiver 110VAC 12VDC Wall Plug Transformer 220VAC 12VDC Wall Plug Transformer optional RA900 Receiver Antenna magnetic mount base with 25 ft connecting cable BS900 Bridge Simulator Screwdriver 9V lith...

Page 6: ...duces amplitude of output voltage for scaling Data Light On solid indicates successful data transmission Blinking or flickering light indicates data errors Full Scale Switch In up position receiver ge...

Page 7: ...o 12VDC e g wall plug transformer Voltage Output Connect to chart recorder or other read out device 10V Full Scale Polarity Switch Switch to down position to reverse polarity on voltage output RF Chan...

Page 8: ...7 BT9000 Bridge Transmitter To sensor gage Exc Black Sen White Sen Green Exc Red To 9V battery negative To 9V battery positive RF Channel Select pads See Appendix D Gain Select pads See Appendix E...

Page 9: ...nce 2 Secure transmitter and 9 volt battery to shaft or device being measured using fiberglass strapping tape Alternatively hose clamps machined collars or other methods or devices may be used but car...

Page 10: ...of RD9000 receiver 6 Position RA900 magnetic mount receiving antenna near transmitter typically within 10 feet RD9000 Rear Panel 7 Connect 12VDC AC adapter Model AC110 or AC220 or other 12VDC supply t...

Page 11: ...l reception in all orientations 11 Connect recorder or other voltage readout device to Output terminals on rear panel of RD9000 12 Flip AutoZero switch up to zero out any initial imbalance sensor must...

Page 12: ...lator acts as a Wheatstone bridge type sensor and can be used to simulate a full bridge strain gage for bench testing and troubleshooting The BS900 features a three position switch With the switch in...

Page 13: ...ale switch on the front panel to the down position 4 Connect a calibrated voltmeter to the Output on the rear panel of the RD9000 5 Without the RD9000 receiving a transmitted signal e g transmitter no...

Page 14: ...strain Gain Level Transmitter Gain GXMT Axial Strain Tension Compression Bridge Full Bridge 2 6 Active Arms Single Gage 1 Active Arm 6 8000 192 microstrain 500 microstrain 5 4000 385 microstrain 1000...

Page 15: ...onnector 2 1mm jack for 5 5mm x 2 1mm plug Operating Temperature 0 to 70 C 32 to 158 F Size and Weight 5 5 x 7 5 x 1 5 3lb 14cm x 19cm x 3 8cm 1 4kg TT9000 System Resolution 14 bits full scale 16384 p...

Page 16: ...eTrak 9000 system The calculations are based on parameters of the device being measured e g shaft diameter sensor parameters e g gage factor and transmitter gain setting Section C1 is specific to torq...

Page 17: ...s of Elasticity 30 x 10 6 PSI steel GF Gage Factor specified on strain gage package GXMT Telemetry Transmitter Gain user configurable typical is 2000 for 500 microstrain range See Appendix E N Number...

Page 18: ...the Full Scale Output If desired the full scale output voltage of the RD9000 can be trimmed so that the voltage output corresponds to an even round number torque level e g 100 ft lb volt First calcul...

Page 19: ...ll Scale switch up on the front of the RD9000 This produces a full scale positive voltage output b Connect a voltmeter to the Output terminals on the rear panel of the RD9000 to read the full scale ou...

Page 20: ...zero for solid shafts Do Shaft Outer Diameter in E Modulus of Elasticity 30 x 10 6 PSI steel GF Gage Factor specified on strain gage package GXMT Telemetry Transmitter Gain user configurable typical i...

Page 21: ...the Full Scale Output If desired the full scale output voltage of the RD9000 can be trimmed so that the voltage output corresponds to an even round number force level e g 1000 lb volt First calculate...

Page 22: ...ull Scale switch up on the front of the RD9000 This produces a full scale positive voltage output b Connect a voltmeter to the Output terminals on the rear panel of the RD9000 to read the full scale o...

Page 23: ...this equation reduces to Legend of Terms FS Full Scale Strain inches inch 10 6 inches inch 1 microstrain GF Gage Factor specified on strain gage package GXMT Telemetry Transmitter Gain user configura...

Page 24: ...f the RD9000 can be trimmed so that the voltage output corresponds to an even round number strain level e g 1000 microstrain volt First calculate the trimmed voltage value VTRIM that corresponds to th...

Page 25: ...witch up on the front of the RD9000 This produces a full scale positive voltage output b Connect a voltmeter to the Output terminals on the rear panel of the RD9000 to read the full scale output volta...

Page 26: ...move a jumper reheat the connection to break or remove the solder bridge Desoldering braid is ideal for this process Caution Do not apply excessive heat to the solder pads Channel Number Frequency MHz...

Page 27: ...k or remove the solder bridge Desoldering braid is ideal for this process Caution Do not apply excessive heat to the solder pads Gain Level Transmitter Gain GXMT Gain Select 0 Gain Select 1 Gain Selec...

Page 28: ...ncomplete RF transmission path Relocate receiving antenna to optimize transmission path from transmitter Double check antenna cable connections Symptom Unstable data wandering zero Problem Cause Solut...

Page 29: ...to balance Contact Binsfeld Engineering Technical Support Request BB900 Bridge Balancer Symptom Flickering Data light spikes in data signal Problem Cause Solution Corrective Action Unsteady battery vo...

Page 30: ...te contamination 3 Rinse shaft this time by squirting with M Prep Neutralizer 5A Wipe the gaging area dry with a clean tissue wiping in only one direction and using clean area of tissue with each wipe...

Page 31: ...gage attached to the tape POSITIONING THE GAGE 6 Using the small triangles located on the four sides of the gage place the taped gage on the shaft perpendicular with the shaft axis aligned with your...

Page 32: ...nder normal ambient conditions of 75 F and 30 65 relative humidity NOTE The next three steps must be completed in sequence within 3 5 seconds Read through instructions before proceeding so there will...

Page 33: ...eft until wiring the gage WIRING THE GAGE 13 Tin each solder pad with a solder dot It is helpful to polish the solder tabs e g with a fiberglass scratch brush or mild abrasive before soldering Trim an...

Page 34: ...33...

Page 35: ...to Binsfeld Engineering Inc 4571 W MacFarlane Rd Maple City MI 49664 BEI assumes no risk for damage in transit Binsfeld Engineering Inc will at its option repair or replace the defective equipment dur...

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