Berg Rental - DMVDL Ultrasonic Velocity Gauge

DMV DL - Handheld Ultrasonic Velocity Gauge with On-Board Data Logger, easy sound velocity measurement for quick correlation to mechanical properties and
microstructure.

·  Quick and Easy Velocity Measurement for Nodularity % in Ductile Iron and other Applications
·  Simple-to-Use, 2-Step Operation
·  Handheld, Portable, Weighs only 13 Ounces with Batteries
·  On-Board 1200 Reading Data Logger
·  Rugged, Dependable
·  Spot Check Production Processes, Sort Suspect Lots, 100% Inspection of Critical Safety-Related Parts

Measure, record, report

The microprocessor-based DMV DL is a sound velocity gauge/data logger combination built into a small, portable instrument. Sound velocity measurements can be made throughout a plant, recorded on-site, and then sent directly to a serial printer or PC for immediate hardcopy reports, analysis, or permanent storage.

Sound velocity measurements can be made on a wide range of materials with the DMV DL (i.e. cast iron, aluminum, plastics, and other metals and non-metals).

Sound Velocity vs. Nodularity %

Sound velocity is a prime factor in estimating the nodularity percentage (%) of ductile iron and its relative tensile strength. The mechanical properties of ductile iron are very dependent upon the shape of nodular graphite formations, or % nodularity, which has a direct effect on the sound velocity. As the nodularity % (graphite formation) increases, the sound velocity of the ductile iron also increases. In turn, sound velocity also has a relationship to the tensile strength of ductile iron, and is often used to predict or qualify the tensile strength of a casting. The DMV DL provides an excellent tool for spot checking production processes, sorting of suspect lots of material, 100% inspection of low volume production runs, and 100% inspection of critical safety-related ductile iron castings.

Quick 2-step measurement

A simple 2-step operation is all that is required to obtain sound velocity readings instantly on a large backlit LCD display.

Specifications:

Operating Principle
Ultrasonic Pulse/Echo
Probe Zero Adjustment
Push button, keyed to instrument probe zero block
V-Path Correction
Automatic, microprocessor controlled
Material Velocity Measuring Range
50,000 to 300,000 in/sec.
1270 to 7620 m/sec.
Material Thickness Range (Steel)
0.500" to 12.00"
12.7 mm to 300 mm
Material Velocity Linearity
Inch: 0.5" to 1.0" = ±20 in/sec. x 10²
1.0" to 12.0" = ±10 in/sec. x 10²
Metric: 12.7 to 25.4 mm = ±51 m/sec.
25.4 to 300 mm = ±26 m/sec.
Displayed Resolution
Velocity: XXXX in/sec. x 100
XXXX m/sec.
Display Type
4 digit, .5" (12.7mm) high with electroluminescent backlight
Display Update Rate
3 Hz
Power Supply
3 ea. 1.5V AA alkaline batteries
Battery Life (operating time)
Up to 70 hours @ 25% duty cycle
(up to 40 hours using backlight)
Auto Shut-Off
After 3.5 minutes of non-use
Data Logger Memory Capacity
1200 readings
Number of Data Files
Up to 99 (user selectable)
Data Output Port
Serial:, asynchronous; 0, +5V TTL, 8 bit, 1 stop bit, 1200 baud
RS232C: bipolar logic levels provided by serial PC and printer cables
Mitutoyo format: Input Only
Direct Report Languages
English, German, French, Italian, and Spanish
Temperature Range
+10/°F to +120/°F (-10/°C to +50/°C)
Dimensions (L x W x D)
6.5" x 3.0" x 1.6"
165.1 mm x 72.2 mm x 40.6 mm
Weight
13.1 oz. (0.37 kg) including batteries