General DM8252 User Manual
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General DM8252 User Manual

High resolution digital manometer
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DM8252_8252RS_Manual_fin081109:Layout 1
DM8252/8252RS
HIGH RESOLUTION
DIGITAL MANOMETER
DM8252
USER'S MANUAL
DM8252RS
INCLUDES 4 RUBBER
STOPPERS FOR DUCT
SMOKE DETECTORS
9/23

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  • Page 1 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 DM8252/8252RS USER’S MANUAL HIGH RESOLUTION DIGITAL MANOMETER DM8252 DM8252RS INCLUDES 4 RUBBER STOPPERS FOR DUCT SMOKE DETECTORS...
  • Page 2 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 INTRODUCTION...
  • Page 3 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 Meter has 5 selectable units of measure: InH O, psi, mbar, bar, Please check tubing is not leaking or damaged before using. CONVERSION & RESOLUTION 1mbar= 1mbar= Resolution Inch of H2O 0.01 0.401 0.004 0.0145 mbar 0.001 0.001 mm of H2O 10.2...
  • Page 4 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 HOLD HOLD Note:...

  • Page 5: Controls And Indicators

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 CONTROLS AND INDICATORS HOLD DATALOGGER REC AVG MAX MIN BAT mbar Primary Data Screen displays pressure value. 2. "-" Minus pressure display. 3. MAX MIN pressure recorded. 4. REC starts recording mode and displays max./min. pressure recorded. 5.

  • Page 6: Auto Power Off

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 "-" Negative "+" Positive pressure pressure AUTO POWER OFF (SLEEP FUNCTION) HOLD "n" HOLD Fig. A MODE OPTIONS...
  • Page 7 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 HOLD UNIT HOLD DISABLE SLEEP MODE ZERO SETTING Hold 2 sec. HOLD SELECT UNIT / SKIP CAL. Power, Unit and Backlight. Fig. B mbar...
  • Page 8 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 Fig. C mbar Fig. D mbar HOLD Fig. E mbar "0.0" Fig. F mbar...
  • Page 9 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 UNIT " InH O","psi", "mbar", " bar", "mmH O" Fig. G mbar Fig. H mbar...

  • Page 10: Maintenance

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 MAINTENANCE Cleaning: CALIBRATION MODE...
  • Page 11 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 "CA" "psi" Fig. I ps i "SA" "CA" Fig. ps i...
  • Page 12 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 "-1.600" "CA" Fig. K ps i "SA" "CA" UNIT , "End" "CA" Fig. L ps i UNIT "SA" UNIT...

  • Page 13: Troubleshooting

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 Calibration point reference MANUAL ZERO SETTING HO LD "- 0 .000" Fig. M mbar TROUBLESHOOTING • Power on but no display. • BAT indication. • No Display.
  • Page 14 DM8252_8252RS_Manual_fin081109:Layout 1 9/23 • Err.1. " Err.1" Fig.O • Err.2. "Err. 2" Fig. P • Err.3 Err.3" Fig. Q • Err.4. Err.4"...

  • Page 15: Replacing The Battery

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 P.S. Err.4 Fig.R • E1OL or E2UL. REPLACING THE BATTERY Replace your “9V” battery when: To replace the battery:...

  • Page 16: Operating Conditions

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 OPERATING CONDITIONS MATERIALS SUPPLIED This package contains: OPTIONAL ACCESSORIES...

  • Page 17: Specifications

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 SPECIFICATIONS Pressure 138 mbar = 0 ~ 55.4 inH2O = 0 ~ 1410 mmH2O Range = 0 ~ 0.138 bar = 0 ~ 2 psi See Page 2 data sheet Resolution Accuracy 0.3% of full scale at 25°C 7.2"...

  • Page 18: Warranty

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 WARRANTY...

  • Page 19: Return Authorization

    DM8252_8252RS_Manual_fin081109:Layout 1 9/23 RETURN AUTHORIZATION...
  • Page 20 PHONE (212) 431-6100 • FAX (212) 431-6499 • TOLL FREE (800) 697-8665 e-mail: sales@generaltools.com • www.generaltools.com NOTICE - WE ARE NOT RESPONSIBLE DM8252/DM8252RS User’s Manual Specifications subject to change without notice FOR TYPOGRAPHICAL ERRORS. ©2009 GENERAL TOOLS & INSTRUMENTS MAN#DM8252/DM8252RS 08/09 ™...

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