Dakota BT Benchtop Bolt Tension Monitor

BT2-Intro

The Dakota BT2 Ultrasonic Bolt Tension Monitor is the latest gauge addition to our bolting products. 

  • Summary
    • Summary

    • It incorporates all of the great features of the Dakota BT1-DL Bolt Tension Monitor, with some added benefits in terms of features, hardware, speed, and length. Dakota BT2-DL Ultrasonic Bolt Tension Monitor very accurately measures fasteners up to 100 feet in length, and sports our very best effort to date…in terms of overall performance/power!

      Transducer Options

      A wide range of Single Element Contact Transducers available

  • Product Features
    • Product Features
      Dakota BT Benchtop Bolt Tension Monitor
      Model BT2-DL
      Display Mode  
      Material thickness digits display
      A-Scan
      Rectified +/- (half wave view), or RF (full waveform view)
      Measurement Range
      PE - 25.4 - 25,400mm (1 - 999”), EE, EEV
      Resolution
      +/- 0.0001mm (+/- 0.00001")
      Measurement Rate  
      Manual
      8 readings per second
      Velocity Calibration Range
      1250 - 13,995m/s (0.0492 - 0.5510 in/μs)
      Temperature Compensation
      Limit Alarm Mode
      Memory and Data Logging
      4GB internal memory
      Sequential and grid batching
      Bitmap graphic capture and capture viewer
      Calibration Options
      Automatic, fixed, single and two-point
      Transducer Probe Type
      Single element
      Transducer Frequency Range
      1 - 10MHz
      Display
      Blanview sunlight readable QVGA TFT color display (320 x 240 pixels)
      Viewable area 4.54 x 3.40 in (115.2 x 86.4 mm), or 5.7 in (144.78 mm) diagonal
      Units (Selectable)
      in/mm, μs
      LED Backlight
      On / Off/ Auto
      Repeatability / Stability Indicator
      Low Battery Indicator
      Battery Save Mode
      Auto
      Transducer Connector Type
      Microdot, Lemo and BNC
      USB-C Interface
      Temperature Sensor
      Screen Refresh Rate
      60Hz
      Timing
      Precision TCXO timing with single shot 100 MHz 8 bit ultra-low power digitizer
      Pulser Type
      Spike, Square Wave & Tone Burst.Pulser Voltage: 100 – 400v
      Selectable step options Spike, Thin, Wide, HV Spike, HV Thin, HV Wide, TB .5MHz, TB 1MHz, TB 2MHz, TB 5MHz, TB 10 MHz. Spike 40 ns, Square Wave 80 to 400 ns, Tone Burst 50 ns to 1 microsecond
      Damping
      50, 75, 100, 300, 600, & 1500ohms
      Frequency Band
      Broadband 1.8 - 19 MHz (-3dB) filter
      Horizontal Linearity
      +/- 0.4% FSW
      Vertical Linearity
      +/- 1% FSH
      Amplifier Linearity
      +/- 1 dB
      Amplitude Measurement
      0 to 100% FSH, with 1% resolution
      Delay
      25,400 mm (0 - 999.9”) at steel velocity
      Measurement Gate
      Three independent gates depending on measurement mode selected, with audible and visual alarms. Amplitude 5-95%, 1% steps
      Setups
      64 custom user defined setups; factory setups can also be edited by the user
      Auto Set
      Automates the detection, scope, and display setting process for each individual bolt
      Alarm Limits
      Adjustable Hi/Low tolerances with visual LED’s and audible beeper
      Field Calibration
      Vector or Regression correction curve for increased accuracy using Load & Stress
      Alarm Limits Bar
      Hi & Lo alarm limits for displaying an acceptable tolerance range
      Detections
      Zero Crossing
      Time
      Nanoseconds
      Elongation
      Change in length (in/mm)
      Load
      Force load applied (pounds KIP, or megapascals MPa)
      Stress
      Force for unit area stress applied (inches per inch or millimeters per millimeter)
      %Strain
      Ratio of elongation to effective length
      Bolt Materials
      Select types from a preset or custom list
      Glue-On
      Available for short bolts with minimal/short elongations to eliminate transducer placement errors
  • Technical Information
    • Technical Specification
      Dakota BT Benchtop Bolt Tension Monitor
      Part Number Description Certificate
      Z-197-0001 Dakota BT2-DL Benchtop Bolt Tension Monitor (Max II)
      Calibration Certificate supplied as standard
      Operating Temperature -10 to 60ºC (14 to 140ºF)
      Power Supply Lithium Ion Pack (supplied) or 6 x AA batteries
      Battery Life Lithium Pack: 18hrs, Alkaline: 12 hrs, Nicad: 5 hrs, NI-MH: 12 hrs
      Gauge Weight 2.04kg (4.5lbs) - including batteries
      Gauge Dimensions 216 x 165 x 70mm (8.5 x 6.5 x 2.5”)
      Packing List Unit, Lithium Pack, 4 oz. Bottle of Couplant, USB Type A to Type B Transfer Cable, Carrying Case, 10’ Lemo 00 to Microdot Transducer Cable, PC Utility Software (download from website), Operation Manual and Certification.
      Certificate supplied as standard
  • Standards
    • Standards
      Dakota BT Benchtop Bolt Tension Monitor

      Factory calibration traceable to NIST & MIL-STD-45662A

  • Downloads
    • Downloads
        • Dakota BT2-DL Benchtop Bolt Tension Monitor Instruction Manual

  • Part Numbers
    • Part Numbers
      Dakota BT Benchtop Bolt Tension Monitor
      • Dakota BT2-DL Benchtop Bolt Tension Monitor (Max II)
        • Part Number : Z-197-0001

Dakota BT Benchtop Bolt Tension Monitor

BT2-Intro

The Dakota BT2 Ultrasonic Bolt Tension Monitor is the latest gauge addition to our bolting products. 

Summary

Dakota BT Benchtop Bolt Tension Monitor

It incorporates all of the great features of the Dakota BT1-DL Bolt Tension Monitor, with some added benefits in terms of features, hardware, speed, and length. Dakota BT2-DL Ultrasonic Bolt Tension Monitor very accurately measures fasteners up to 100 feet in length, and sports our very best effort to date…in terms of overall performance/power!

Transducer Options

A wide range of Single Element Contact Transducers available

Downloads
    • Dakota BT2-DL Benchtop Bolt Tension Monitor Instruction Manual

Product Features
Dakota BT Benchtop Bolt Tension Monitor
Model BT2-DL
Display Mode  
Material thickness digits display
A-Scan
Rectified +/- (half wave view), or RF (full waveform view)
Measurement Range
PE - 25.4 - 25,400mm (1 - 999”), EE, EEV
Resolution
+/- 0.0001mm (+/- 0.00001")
Measurement Rate  
Manual
8 readings per second
Velocity Calibration Range
1250 - 13,995m/s (0.0492 - 0.5510 in/μs)
Temperature Compensation
Limit Alarm Mode
Memory and Data Logging
4GB internal memory
Sequential and grid batching
Bitmap graphic capture and capture viewer
Calibration Options
Automatic, fixed, single and two-point
Transducer Probe Type
Single element
Transducer Frequency Range
1 - 10MHz
Display
Blanview sunlight readable QVGA TFT color display (320 x 240 pixels)
Viewable area 4.54 x 3.40 in (115.2 x 86.4 mm), or 5.7 in (144.78 mm) diagonal
Units (Selectable)
in/mm, μs
LED Backlight
On / Off/ Auto
Repeatability / Stability Indicator
Low Battery Indicator
Battery Save Mode
Auto
Transducer Connector Type
Microdot, Lemo and BNC
USB-C Interface
Temperature Sensor
Screen Refresh Rate
60Hz
Timing
Precision TCXO timing with single shot 100 MHz 8 bit ultra-low power digitizer
Pulser Type
Spike, Square Wave & Tone Burst.Pulser Voltage: 100 – 400v
Selectable step options Spike, Thin, Wide, HV Spike, HV Thin, HV Wide, TB .5MHz, TB 1MHz, TB 2MHz, TB 5MHz, TB 10 MHz. Spike 40 ns, Square Wave 80 to 400 ns, Tone Burst 50 ns to 1 microsecond
Damping
50, 75, 100, 300, 600, & 1500ohms
Frequency Band
Broadband 1.8 - 19 MHz (-3dB) filter
Horizontal Linearity
+/- 0.4% FSW
Vertical Linearity
+/- 1% FSH
Amplifier Linearity
+/- 1 dB
Amplitude Measurement
0 to 100% FSH, with 1% resolution
Delay
25,400 mm (0 - 999.9”) at steel velocity
Measurement Gate
Three independent gates depending on measurement mode selected, with audible and visual alarms. Amplitude 5-95%, 1% steps
Setups
64 custom user defined setups; factory setups can also be edited by the user
Auto Set
Automates the detection, scope, and display setting process for each individual bolt
Alarm Limits
Adjustable Hi/Low tolerances with visual LED’s and audible beeper
Field Calibration
Vector or Regression correction curve for increased accuracy using Load & Stress
Alarm Limits Bar
Hi & Lo alarm limits for displaying an acceptable tolerance range
Detections
Zero Crossing
Time
Nanoseconds
Elongation
Change in length (in/mm)
Load
Force load applied (pounds KIP, or megapascals MPa)
Stress
Force for unit area stress applied (inches per inch or millimeters per millimeter)
%Strain
Ratio of elongation to effective length
Bolt Materials
Select types from a preset or custom list
Glue-On
Available for short bolts with minimal/short elongations to eliminate transducer placement errors
Technical Specification
Dakota BT Benchtop Bolt Tension Monitor
Part Number Description Certificate
Z-197-0001 Dakota BT2-DL Benchtop Bolt Tension Monitor (Max II)
Calibration Certificate supplied as standard
Operating Temperature -10 to 60ºC (14 to 140ºF)
Power Supply Lithium Ion Pack (supplied) or 6 x AA batteries
Battery Life Lithium Pack: 18hrs, Alkaline: 12 hrs, Nicad: 5 hrs, NI-MH: 12 hrs
Gauge Weight 2.04kg (4.5lbs) - including batteries
Gauge Dimensions 216 x 165 x 70mm (8.5 x 6.5 x 2.5”)
Packing List Unit, Lithium Pack, 4 oz. Bottle of Couplant, USB Type A to Type B Transfer Cable, Carrying Case, 10’ Lemo 00 to Microdot Transducer Cable, PC Utility Software (download from website), Operation Manual and Certification.
Certificate supplied as standard
Standards
Dakota BT Benchtop Bolt Tension Monitor

Factory calibration traceable to NIST & MIL-STD-45662A

Part Numbers
Dakota BT Benchtop Bolt Tension Monitor
  • Dakota BT2-DL Benchtop Bolt Tension Monitor (Max II)
    • Part Number : Z-197-0001