Retrotec DU200 DucTester with DM-2 - Manual (Page 2)

SP802 Page 2 of 2 rev-2012-02-14
The Duct Testers (Fans)
DucTester DU220 Duct Blaster ®
Flow:
Maximum in free air: 725 CFM
Maximum at 25 Pa: 700 CFM
Pressurize on flex duct: 700 CFM
Depressurize: 700 CFM
Minimum at free air: 7 CFM
Accuracy: +/- 3% with DM-2
Calibration unaffected by the floor or at
high back pressures.
Flow:
Maximum in free air: 1500 CFM
Maximum at 50 Pa: 1350 CFM
Pressurize on flexduct: 1000 CFM
Depressurize: 650 CFM*
* Flow Conditioner reduces the flow.
Minimum at free air: 10 CFM
Accuracy: +/- 3% with DG-700
Power plugs directly
into fan with speed
control and tubes in
one umbilical.
Additional control
on fan with status
indicator lights. Power plugs directly into fan with speed
control on cord or from gauge. Tubes
connect separately to fan, ducts and gauge.
No indicator lights.
Dimensions and weight:
13 x 11 x 13.25 in, 11.75 lbs with 2 flow rings
Dimensions and weight:
10 in diameter, 7 in length, 8.5 lbs with three flow rings
Calibration meets the same standards.
Test direction: Works in both directions without
changes to set up. Test direction: Works in both directions but needs the
Flow Conditioner and reference tube added to the inlet
when depressurizing.
The Digital Gauges
DM-2 Mk II DG-700
Accuracy: 1% of reading, or 0.15 Pa.
Cruise Control: 0, 25, 50 Pa or any
pressure entered using keyboard.
Duct Testing results:
Channel A:
 Pressure in Pa, in WC
Channel B:
 Flow in CFM at 25 and 50 Pa or any other
pressure entered using the keyboard.
 Flow in CFM, CFM/ft 2 , CFM/100ft 2 & CFM/1000ft 2
Compatible Duct testing Devices:
 Retrotec Model DU200 DucTesters
 Energy Conservatory Duct Blaster
 Energy Conservatory Tru-Flow Grid
Accuracy: 1% of reading, or 0.15 Pa.
Cruise Control: 0, 25 and 50 Pa.
Duct Testing results:
Channel A:
 Pressure in Pascals, in WC
Channel B:
 Flow in CFM at 25 and 50 Pa
Compatible Duct testing Devices:
 Energy Conservatory Duct Blaster
 Energy Conservatory Tru-Flow Grid