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Lynx Tester

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The Lynx model duct leakage tester is a good choice for those on a tight budget and are used to testers with an inlet slide gate damper.  It can test 80 to 90% of the jobs you’ll encounter.  If you primarily test systems between 4 and 6 in.wg. with moderate leakage , the Lynx may be the right tester.  Standard unit includes analog gauges, but you can opt for digital gauges.  The Lynx cannot be outfitted with a speed controller.

Features

  • Measure leakage from 9 to 570 cfm

  • 115v/1ph operation

  • Quick-change orifice plates

  • Analog gauges

  • 12-1/2 ft flex (5-inch diam.)

  • 20 ft pressure tubing

  • Calibration certificates

  • 15 amp circuit

  • No-flat tires

  • Upper locking swivel casters

  • Everything labeled for easy use!

Capacity (English)

Use the table below to determine the range of air leakage you can test with the Lynx using our standard orifice plates.

Test Pressure
(in.wg.)		 Recommended Flow Range of Orifice Plate
Optional Low-Flow Plate 1 in Plate 2 in Plate 3 in Plate 4 in Plate
Min Flow Max Flow Min Flow Max Flow Min Flow Max Flow Min Flow Max Flow Min Flow Max Flow
(cfm) (cfm) (cfm) (cfm) (cfm) (cfm) (cfm) (cfm) (cfm) (cfm)
1 1 11 9 32 34 150 82 355 175 550
2 1 11 9 30 34 135 82 325 175 540
3 1 11 9 27 34 120 82 320 175 510
4 1 11 9 23 34 105 82 285 175 455
5 1 10 9 17 34 85 82 230 175 365
6 1 10 9 10 34 50 82 140 175 290
7 — 5 — 6 — 25 — 55 — 160
  1. Min Leakage is the recommended minimum flow rate based on a 0.4 in.wg. pressure drop across the orifice plate. For example, approximately 82 cfm through the 3-inch orifice plate results in a 0.4 in.wg. so 82 cfm is the recommended minimum leakage. Though it possible to use the orifice plates at pressure drops lower than 0.4 in.w.g, note that accuracy of the reading is decreased
  2. Note that the data is based on laboratory tests with short lengths of hard pipe attached to the duct leakage tester. Actual field performance will likely result in reduced performance due to: (1) amount of flexible duct used; (2) number of bends in flexible duct; (3) size of duct system; (4) line voltage. To account for flexible duct and 90 degree bends, use our program that takes these in-line losses into account.

Capacity (Metric)

Use the table below to determine the range of air leakage you can test with the Lynx using our standard orifice plates.


Test Pressure
(Pa)		 Recommended Flow Range of Orifice Plate
Optional Low-Flow Plate 25mm Plate 50mm Plate 75mm Plate 100mm Plate
Min Flow Max Flow Min Flow Max Flow Min Flow Max Flow Min Flow Max Flow Min Flow Max Flow
(L/s) (L/s) (L/s) (L/s) (L/s) (L/s) (L/s) (L/s) (L/s) (L/s)
250 0.5 5.2 4.2 15 16 71 39 168 83 260
500 0.5 5.2 4.2 14 16 64 39 153 83 255
750 0.5 5.2 4.2 13 16 57 39 151 83 241
1000 0.5 5.2 4.2 11 16 50 39 135 83 215
1250 0.5 4.7 4.2 8.0 16 40 39 109 83 172
1500 0.5 4.7 4.2 4.7 16 24 39 66 83 137
1750 — 2.4 — 2.8 — 12 — 26 — 76


  1. Min Leakage is the recommended minimum flow rate based on a 100 Pa pressure drop across the orifice plate. For example, approximately 39 L/s through the 75 mm orifice plate results in a 100 Pa so 39 L/s is the recommended minimum leakage. Though it possible to use the orifice plates at pressure drops lower than 100 Pa, note that accuracy of the reading is decreased
  2. Note that the data is based on laboratory tests with short lengths of hard pipe attached to the duct leakage tester. Actual field performance will likely result in reduced performance due to: (1) amount of flexible duct used; (2) number of bends in flexible duct; (3) size of duct system; (4) line voltage. To account for flexible duct and 90 degree bends, use our program that takes these in-line losses into account.

Options & Accessories

Options

  • Digital gauges (9v operation)

  • Low-flow orifice plate (1 to 10 cfm)

Accessories

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