General DM8252 User manual

DM8252/8252RS

USER’S MANUAL

HIGH RESOLUTION

DIGITAL MANOMETER

DM8252 DM8252RS

INCLUDES 4RUBBER

STOPPERS FOR DUCT

SMOKE DETECTORS

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

INTRODUCTION

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DM8252_8252RS_Manual_fin081109:Layout 1 9/23

CONVERSION & RESOLUTION

1mbar=

Resolution

Inch of H2O

mbar

psi

bar

mm of H2O

0.01

0.004

0.1

0.001

0.401

0.0145

0.001

10.2

Meter has 5selectable units of

measure: InH2O, psi, mbar, bar,

mmH2O.

Please check tubingis not leaking

or damaged beforeusing.

MANOMETER QUICK START

Unscrew battery compartmenton

rear of instrumentand fit PP3(or

Equivalent)battery replace cover

and secure withscrew.

Press to switchthe instrument on.

Press to selectunit of pressure

measurement required. To zero by

pressing and holdfor three

seconds , theinstrument now reads

gauge pressure.

Press for differential pressure

measurement.

UNIT

HOLD

DIF

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

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Note:

HOLD

REC REC

REC

HOLD

REC

HOLD

REL

REC

UNIT

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DM8252_8252RS_Manual_fin081109:Layout 1 9/23

HOLD REL DIF

DATALOGGER

REC AVG

MAX MIN BAT

CONTROLS AND INDICATORS

2. "-" Minus pressure display.

3. MAX MIN pressure recorded.

4. REC starts recording modeand

displays max./min. pressure

recorded.

5. AVG Average records

9. Pressure unitindication.

10.

11. DIF Differential pressure mode.

12. "+" Positive pressure connection.

13. "-" Negative pressure connection.

Primary Data Screendisplays

pressure value.

(N/A).

DC powerin Jack.

RS232 output port.

H/M/S 88:88:88 displays timefor

Hour / Minute/ Second.

BAT Battery low indicator.

inH2O psi mbar bar mmH2O

14. HOLD Freezes pressure reading.

15. REL (N/A)

Establish a relative zero for the

primary screen information.

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

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Fig. A

AUTO POWER OFF

(SLEEP FUNCTION)

MODE OPTIONS

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"-" Negative

pressure

"+" Positive

pressure

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HOLD

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

HOLD DIF

REC

UNIT



DISABLE SLEEP MODE

ZERO SETTING

SELECT UNIT / SKIP CAL.

HOLD

Hold 2 sec.

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REC

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Power, Unit and Backlight.

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REC

Fig. B

inH2O psi mbar b ar mmH2O

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

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Fig. C

Fig. D

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Fig. F

Fig. E

HOLD

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DM8252_8252RS_Manual_fin081109:Layout 1 9/23

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UNIT

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Fig. H

" InH2O","psi",

inH2O psi mbar b ar mmH2O

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

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MAINTENANCE

13.

DM8252_8252RS_Manual_fin081109:Layout 1 9/23

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