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Dakota BT Benchtop Bolt Tension Monitor
Product Description
The Dakota BT2 Ultrasonic Bolt Tension Monitor is the latest gauge addition to our bolting products. 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!
Product Features
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, EE, EEV |
Resolution | +/- 0.0001mm |
Measurement Rate | |
Manual | 8 readings per second |
Velocity Calibration Range | 1250 – 13,995m/s |
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 115.2 x 86.4 mm, or 144.78 mm diagonal |
Units (Selectable) | 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 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 (mm) |
Load | Force load applied (pounds KIP, or megapascals MPa) |
Stress | Force for unit area stress applied (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 Specifications
Part Number | Description | Certificate |
Z-197-0001 | Dakota BT2-DL Benchtop Bolt Tension Monitor (Max II) | ♦ |
Operating Temperature | -10 to 60ºC | |
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 – including batteries | |
Gauge Dimensions | 216 x 165 x 70mm |
● Certificate supplied as standard
Data Sheet
Standards
Factory calibration traceable to NIST & MIL-STD-45662A
Packing List
Packing List | Z-197-0001 |
Unit | ♦ |
Lithium Pack | ♦ |
Couplant | ♦ |
USB Type A to Type B Transfer Cable | ♦ |
Carrying Case | ♦ |
Lemo 00 to Microdot Transducer Cable | ♦ |
PC Utility Software (free from website) | ♦ |
Operation Manual | ♦ |
Certification | ♦ |
Part Numbers
Dakota BT2-DL Benchtop Bolt Tension Monitor (Max II) | ||
![]() | Part Number: | Z-197-0001 |