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.
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!
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 |
- 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
- 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.
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 |
- 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
- 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
Digital gauges (9v operation)
Low-flow orifice plate (1 to 10 cfm)