Description
The Dakota Ultrasonics Max II very accurately measures fasteners up to 100 feet in length and offers more features, more powerful hardware, speed and length measurements when compared with other models. The MAX II Bolt Tension Monitor is the most versatile bolt tension monitor currently available.
The Max II measures bolt length by determining the change in transit time of an ultrasonic shock wave that travels the length of the fastener, regardless of the mechanical tightening method. While a load is applied the to the fastener, the MAX II processes the transit time in nanoseconds, elongation, load, stress, or %strain.
The Max II has been designed for ease-of-use and reduces operator error through automating many of its processes. Built in data recordation and supporting DakView utility software for Windows PC & MAC OSX make Dakota Ultrasonic’s Max II the most reliable solution for the most challenging bolting applications.
When purchasing this instrument, please be sure to select the transducers that best meet your measurement requirements.
Технические характеристики
Specs
| Physical | |
| Size (W x H x D) | 8.5 x 6.5 x 2.5 (216 x 165 x 70 mm) |
| Weight | 4.5 lbs (2.04 kgs), with batteries |
| Operating Temperature | 14 to 140F (-10C to 60C). |
| Display | RF (full wave view), ±, Rectified (half wave view), Digits, or split screen combination (wave plus large digits). |
| Keyboard | Membrane switch with 21 tactile keys |
| Case | Extruded aluminum body with nickel plated aluminum end caps (gasket sealed) |
| Connections | |
| USB | Direct USB 1.1 PC connectivity |
| Power Connector | 12v at 2 amps, adapter 100-240 VAC, 0.7 Amps, 50-60 Hz |
| 5 Pin Lemo | R232 Output: RS232 PC serial interface Alarm Output: Two independent alarm outputs triggered by the gates Analog Out: Proportional outputs (amplitude or distance), 0-10 volts Transducer Connectors: (2) Lemo 00 connectors |
| Power Source | |
| Lithium Ion Pack | 10.8v, 2 amp hrs, typical operation 18hrs |
| Battery Backup | Emergency battery backup. Six 1.5V alkaline, 1.2V AA Nicad cells, 1.2V AA NI-MH, or other other equivalent power source. Battery life (continuous use): Alkaline (12 hrs), Nicad (5hrs), and NI-MH (12hrs), with default settings. |
| Electronics | |
| Display | Blanview sunlight readable QVGA TFT color display (320 x 240 pixels) |
| Screen Refresh Rate | 60 Hz |
| Timing | Precision TCXO timing with single shot 100 MHz 8 bit ultra low power digitizer |
| Pulser Types | Spike, Square Wave, and Tone Burst |
| Pulser Voltage | 100 — 400v |
| Pulse Width | Selectable step options Spike,Thin, Wide, HV Spike, HV Thin, HV Wide, TB .5MHz, TB 1MHz, TB 2MHz, TB 5MHz, TB 10MHz. Spike 40 ns, Square Wave 80 to 400 ns, Tone Burst 50 ns to 1 microsecond. |
| Gain | 0 to 110dB with 0.2dB resolution. Manual and AGC control. |
| Damping | 50, 75, 100, 300, 600, & 1500 ohms |
| Frequency Band | Broadband 1.8 — 19 MHz (-3dB) filter |
| Linearity | Horizontal: ±, 0.4% FSW Vertical: ±, 1% FSH Amplifier: ±, 1 dB |
| Amplitude Measurement | 0 to 100% FSH, with 1% resolution |
| Delay | 0 — 999.999 (25,400mm) at steel velocity |
| Measurement Gates | Three independent gates depending on measurement mode selected, with audible and visual alarms. Amplitude 5-95%, 1% steps. |
| Memory | |
| Log Formats | Grid (Alpha Numeric) |
| Capacity | 4 Gb internal & up to 64 Gb External SD slot |
| Screen Capture | Tagged interface file (.tif ) capture for quick documentation |
| Measuring | |
| Units | Imperial, Metric, or Time |
| Velocity | 0.0492 to .5510 in/&mu,s (125013995m/s) |
| Measurement Modes | Pulse-Echo (P-E), Echo-Echo (E-E), or Echo-Echo-Echo (E-EV) |
| Measurement Range | 1 to 999.999 (2540cm) in pulse-echo(P-E) measurement mode. Range will vary using multi-echo modes — dependent on material type and consistency. |
| Detection | Zero Crossing |
| Resolution | ±, 0.00001 (0.0001 mm) |
| Calibration | Automatic, Fixed, Single or Two-Point zero calibration options |
| Quantities | Time: Nanoseconds Elongation: Change in length (inches/millimeters) 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 |
| Certifications | Meets IP65 requirements, Factory calibration traceable to NIST & MILSTD-45662A |
| Warranty | 2 years |
