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Pitot Static Leak Tester:

The Barfield DPI610 Aero is an inexpensive, portable, self-contained single channel leak tester for aircraft pitot and static systems. The unit is configured as a single channel unit for testing either altitude or airspeed parameters. Scaling is provided in aeronautical units for both altitude and airspeed and functions such as leak test and switch tests are addressed directly.
 
A single pressure/vacuum selectable hand pump is provided for supplying the necessary pressure (no electric or external pressure sources required) needed for on-board leak testing. The test sets pneumatics are so arranged that the units maximum rate of climb is 3000 ft./min. when used with a recommended hose of 15 ft length x 0.25 in inside diameter hose at altitudes below 15k ft.

DPI610 Dimensions:

                  in.       cm.
Height       5.5     13.97
Width        6.7     17.02
Depth       11.8    29.97
  
                 lbs.       kg
Weight      6.6      2.99

DPI610 Specifications:

Accuracy 0.025% full scale
14 ft @ sea level
18 ft @ 10K ft
25 ft @ 20K ft
36 ft @ 30K ft
3 kts @ 50 kts*
1.5 kts @ 100 kts
0.7 kts @ 200 kts
0.3 kts @ 400 kts
* Improved after a zero correction carried out
Range
Altitude: -3k to + 50K ft
Airspeed: 0 to 600 kts
Aeronautical Units of Measure
Altitude: Feet, meters
Airspeed: knots, km/hr and mph
Leak Test Scales
Altitude: Feet/min, meters/min, m/sec, hm/min
Airspeed: Knots/min, km/hr/min, mph/min

Features:

> Ideal for flightline leak checks and troubleshooting
> Performs precision Pitot-Static leak tests
> Fully portable, self-contained
   (No electric or external pressure sources required)
> Rechargeable Battery Power
> Pneumatic hand pumps and release volume  
   adjuster for value setting (Press. Or Vac.)
> Release valve and ground valve for lowering   
   values to atmospheric. Rates limited to 3k ft/mi