DM4 Dual Digital Micro-Manometer Specifications
|Sensors:||2 independent differential pressure transducers with auto zeroing|
Display resolution in the Pascal mode is
0.1 Pa from 0.0 Pa to ±999.9 Pa
and 1 Pa from 1000 Pa to ±1250 Pa.
Display resolution in the US units mode is
0.001 "wc from 0.000 "wc to ±5.000 "wc.
Internal resolution is 0.025 Pa or 0.0001 "wc
over the entire ±5.000 "wc (±1250 Pa) range.
and this is the resolution of the serial output.
Bi-directional: ±5.0 "wc (±1250 Pa).
For higher pressures, see the Infiltec DM5.
|Keys:||7 function selection keys.|
|- Device Key:||Select: Manometer, Pitot tube, E3 blower door, DL1 duct tester, G54 mobile fan devices.|
|- Units Key:||
Dual Manometer: Metric (Pa, Pa), U.S. ("wc, "wc), Mixed ("wc, Pa)
Pitot flow: Metric (Pa, m/s), U.S. ("wc, f/m), Mixed (Pa, fpm)
Infiltec E3 blower door flow: Metric (Pa, m3/h), U.S. ("wc, cfm), Mixed (Pa, cfm)
Infiltec E3 blower door ELA (leakage area): Metric (Pa, cm2), U.S. ("wc, in2), Mixed (Pa, in2)
Minneapolis Model 3 blower door flow: Metric (Pa, m3/h), U.S. ("wc, cfm), Mixed (Pa, cfm)
Minneapolis Model 3 blower door ELA (leakage area): Metric (Pa, cm2), U.S. ("wc, in2), Mixed (Pa, in2)
Infiltec DL1 duct tester flow: Metric (Pa, m3/h), U.S. ("wc, cfm), Mixed (Pa, cfm)
Infiltec DL1 duct tester ELA (leakage area): Metric (Pa, cm2), U.S. ("wc, in2), Mixed (Pa, in2).
|- Time Avg Key:||Select block average of 1 (default), 2, 4, 8, 16, 32 or 64 seconds.|
|- Low Flow Key:||
Dual Manometer: no function
Pitot tube flow: no function
Infiltec E3 blower door low flow plate: Off, CRF (Can't reach 50 Pa), 7 holes open, 5 open, 3 open, 2 open, 1 open
Minneapolis Model 3 blower door low flow rings: Off, CRF (Can't reach 50 Pa), A Ring, B Ring, C Ring
Infiltec DL1 duct tester orifice tubes: Off, 16 cm2 tube on, 4 cm2 tube on, 1 cm2 tube on
|- Baseline Key:||Resets the zero building pressure for Infiltec E3 or Minneapolis Model 3 blower door calculations.|
|- Hold Key:||Holds reading on display until pressed again.|
|- On/Off Key:||Turn power on and off.|
Dual Pressure: ±1% of display measurement or ±1 digit, whichever is greater.
Pitot Flow: ±1.5% of measurement or better from 800-6900 fpm (4-35 m/s)
Infiltec E3 blower door flow or ELA: ±1.5% of measurement or better
Minneapolis Model 3 blower door flow or ELA: ±1.5% of measurement or better
Infiltec DL1 duct leakage flow or ELA: ±1.5% of measurement or better
|Display Type:||2x16 high contrast LCD with numbers and characters.|
|Operating Temperature:||32°F to 122°F. (0°C to 50°C)|
|Storage Temperature:||-4°F to 160°F. (-20°C to 70°C)|
|Maximum Pressure:||±25 "wc, ±6 kPa or ±0.9 PSI|
|Low Battery Display:||
Current battery voltage is displayed at startup,
"lowbat" displayed when voltage is under 7 volts.
|Over Range Indicator:||!!MAX!! displayed when pressure is beyond range ±5.000 "wc (±1250 Pa).|
|Auto Zero:||Pneumatic switches update zero pressure estimates every 10 seconds.|
|Weight With Battery:||~16 oz. (~455 grams)|
|Dimensions:||4.0"x7.5"x1.79" (101.6x190.5x45.4 mm).|
|Battery Life:||Over 100 hours from six AA alkaline batteries.|
|Operating Medium:||Air or non-corrosive, non-explosive gas.|
|Pressure Connections:||Two pairs, barbed for 1/8" ID tubing.|
9600-8N0 pseudo RS232 ASCII records at 1 Hz with LF+CR termination
±50000 range, 0.025 Pa resolution, comma separates two channel values
Embedded firmware with serial programmable calibration constants.
Infiltec can modify the DM4 firmware with your fan calibration constants.
|Optional Accessories:||E3 blower door, DL1 duct tester, Pitot tube, serial cable, 110 VAC or 220 VAC power adaptor.|
|Accessories Included:||Battery, soft carrying case, tubing, calibration certificate, user manual.|
|Warranty:||2 years coverage on parts and labor to repair any defects.|
For current DM4 prices, see the Infiltec Radon or Blower Door catalogs, or call (540) 943-2776 weekdays 7AM-4PM ET.
This page copyright © 1996-2016 by Infiltec Inc., all rights reserved. It was last updated on October 08, 2016.