DLtech, Inc.

QUAD-VAC IIÔ Analyzer

The Second in a Series of Standard Setting Test Equipment

FEATURES

1. Battery Powered

2. Calibration

Calibrate four (4) transducers [all electronic – extremely stable] simultaneously and store calibration data (default). Calibration equations computed for each channel.

3. Monitoring Vacuum Stability Monitor vacuum at one to four locations simultaneously. Maximum, minimum, average and standard deviation are calculated for each channel and presented on monitor below the graph. For example,

Ø Teat End

Ø Mouthpiece

Ø Milk Line

Ø Pulsator Line

Ø Receiver

Ø Vacuum Pump Inlet

4. Pulsator Test

Test up to four–single acting pulsators, or two–alternating pulsators simultaneously. Software calculates ppm, ratio, A, B, C and D phases. Results for each channel are listed below the graph.

5. Slug Velocity Test

Analyze the performance of pipeline washing systems. Graph shows slug formation, opening and closing of air injector, vacuum drop across each slug. Slug velocity is calculated at the set trigger vacuum.

6. Real Time Graphics

Shown on your computer monitor

ü Monitor up-dates, adjustable up to 10 Hz [cycles per second]

ü Sampling duration [graph X axis], adjustable from 1 second to 1 hour

ü Vacuum level [graph Y axis] auto scaling

ü Repeats, up to 10 times

ü Zoom in to analyze section of interest, using a simple “click and drag” method

ü Displays results in inch of Hg or kPa

7. Print

Print graphs directly through the laptop. Graphs can be printed on-site and/or saved for later analysis. Your company name will appear on each graph.

SPECIFICATIONS

Battery powered:

8 plus hours of operation on a fully charged battery (sealed lead acid). Other battery types are available upon request.

Channels: Four (4)

Sampling rate: 80 Hz

(80 samples per second)

Computer system:

ü Pentium 133mHz CPU, 32MB RAM

ü Windows NT (SP6 or higher), Windows 2000 or Windows XP

Response rate:

ü Direct to Analyzer: 15 to 0 in Hg @ 1,200 in Hg/s [4,000 kPa/s]

ü 3 ft, 3/16 inch ID tubing; 15 to 3.2 in Hg @ 1,040 in Hg/s, [3,500 kPa/s]

Note: QUAD-VAC II Analyzer meets all specification given in ASAE EP445.1, Jul 96 Section 4.1 [Measurement of vacuum level], 4.2 [Measuring vacuum change] and 4.3 [Measurement of pulsation characteristics].

QUAD-VAC II System Includes

1. The QUAD-VAC II Analyzer, housed in a waterproof case

2. Serial computer cable

3. Equipment to attach QUAD-VAC II to milking system supplied in a plastic soft side carrying case.

ü PVC tubing; 3/16 inch ID, 4 – 25 foot lengths

ü milk line adapters, parlor and tiestall; 4 – 9/16 inch and 4 – 5/8 inch

ü pulsators; 2 – reducing tees for short air tubes and 2 – 6 ft lengths PVC tubing

ü teat end; a 14 gauge needle with simple liquid trap

ü Mouthpiece; two 90º adapters with 6 inch PVC hose

4. Software and manual