Ponpe 8252 Bedienungsanleitung

HAND HELD DIGITAL

RS232 MANOMETER

OPERATION MANUAL

Model: 8252

www.ponpe.com

Congratulations on your purchase of

the Manometer ! This instrument is

portable, battery operated pressure

measuring device.

The Manometer is ideal for HVAC/R

technicians measuring pressure

level ,Medical equipment ,Computer

peripherals , Pneumatic Controls.

INTRODUCTION

The meter will display all LCD

segments when it is first turned on

for approx. 3 seconds. Though you

might have seen DATALOGGER,

Y/M/D, REL, AVG ..these are not

available for the meter.

The LCD is divided into two distinct

sections : One large (Primary) top

screen and one smaller right-

bottom bottom screen (Relative

Clock). The 2 display areas keep

you constantly updated with the

pressure measurements.

The Meter measures:

* Gauge pressure-a measure of

pressure in psi that is referenced to

ambient pressure.

* Differential pressure- a measure

of the difference of two pressures .

Meter has 5 selectable units of

measure. : InH2O,psi,mbar, bar ,

mmH2O.

CONVERSION & RESOLUTION

Please check the tubing is not

leaking or damaged before using.

1mbar=1mbar=

Resolu tio n

inch of H2O

mbar

psi

bar

mm of H2O

0.01

0.001

0.1

0.001

0.401

0.0145

0.001

10.2

HOL D REL DIF

DATAL OGGER

REC AVG

MAX MIN BAT

CONTROLS AND INDICATORS

2. "-" . Minus pressure display.

3. MAX MIN presssure recorded.

4. REC starts recording mode and

displays max./min. pressure

recorded.

5. AVG. Average records

9. . Pressure unit indication.

10.

11. DIF. Differential pressure mode.

12. "+" Positive pressure connection.

13. "-" Negative pressure

connection.

14. HOLD. Freezes pressure reading.

Primary Data Screen displays

pressure value.

(N/A).

DC power in Jack.

RS232 output port.

H/M/S 88:88:88 displays time for

Hour / Minute / Second.

BAT. Battery low indicator.

inH2O psi mbar bar mmH2O

"-" Negative

pressure

"+" Positive

pressure

15. REL. Establish a relative zero

for the primary screen

information.(N/A)

This instrument will shut off

automatically in approx. 20 minutes for

every power on. For recording or

operating over longer periods of time,

you can disable the sleep mode by

pressing and simultaneously

before power on.

An "n" will appear in the middle of the

screen at which time you can release

the button. (See Fig. A) The

disable sleep mode will be invalid after

power off.

Fig. A

HOLD

AUTO POWER OFF (SLEEP

FUNCTION)

HOLD

MODE OPTIONS

Delete and replace with programmable

user selectable start-up mode.

The display will default to the mode

last used.

HOLDHOLD DIFDIF

RECREC

UNITUNIT

DISABLE SLEEP MODE

ZERO SETTING

SELECT UNIT / SKIP CAL.

HOLD

Hold 2 sec.

Turns instrument on (Default set-

ting) and off.

REC

Press momentarily and relative

clock starts in the lower right

screen.

REC is displayed in the middle

left of screen(Fig.B).Other button

functions are locked out except

Power , Unit and Backlight.

Press momentarily again and the

unit cycles through MAX (Fig. C)

and MIN (Fig.D) and back to

current pressure ; the record

mode is displayed on the LCD.

Press and hold for 3

seconds to turn off the record

function and return to normal

mode.

The following table

lists the modes of

operation that can

be invoked by

pressing the button

indicated.

REC

Fig. B

inH2O psi mbar bar mmH2O

HOLD

Press momentarily to freeze the

pressure reading . (Fig.E)

Fig. C

Fig. D

Press momentarily ,DIF appears

on top of the LCD and the display

indicates the relative zero (

Relative zero causes the value of

the display to show as "0.0")-only

the amount of pressure change

will be indicated. Press

momentarily again and the unit

returns to the normal mode of

pressure differential (see Fig.F).

DIFDIF

Fig. F

inH2O psi mbar bar mmH2O

Fig. E

inH2O psi mbar bar mmH2O

DIF

inH2O psi mbar bar mmH2O

Press momentarily and the units

will cycle through " InH2O","psi"

,"mbar"," bar" ,"mmH2O." ,

"mbar" ,which are indicated on

the bottom of the display

(See Fig.G &H).

UNIT

Differential Pressure : A measure of

the difference between two pressures

, i.e. use differential pressure sensor

to measure gauge pressure by

leaving one process connection open

to atmosphere and connecting the

second sensor port to your system.

Fig. G

Press momentarily and the back-

light illuminates for approx. 30

seconds then turns off

automatically.

Or press momentarily to

decrease the figure when

calibration is being performed.

Fig. H

inH2O psi mbar bar mmH2O

MAINTENANCE

The meter is calibrated in house

before shipping.

When properly maintained , the

meter will maintain its accuracy

specification, to ensure your meter

is performing at its peak, send it to

the factory or a qualified instrument

calibration facility for annual

calibration.

Recommend always set zero

before measurement .Refer to the

zero setting procedure in page 11.

Cleaning:

Use a damp cloth and mild soap to

clean the case of the Manometer, do

not use harsh detergents or abrasives

as these may mar the finish or damage

the unit's case with an adverse

chemical reaction.

CALIBRATION MODE

Calibration mode is only applicable

for a standard Manometer calibrator

or any qualified meter calibration

facility for annual calibration.

1. First , manually set the display to

zero ( no pressure applied to the

connector ), refer to the m anual

zero procedure(in page11).

Fig. I

psi

4. The meter has defaulted as 1.6 psi

calibration point , the adjustable

pressure range is from 1.5 to 1.7

. if calibration pressure source is

not 1.6 psi ,increase by pressing

key , or decrease by pressing

key to set calibration point as

required.

5. Save the calibration point by

pressing key , "SA" and small

"CA"appears on the display (See

Fig. J ) in 2 seconds , the meter

auto-skips to the negative pressure

(-) point for next calibration mode.

RECREC

RELREL

RECREC

2. Turn the meter off.

3. Press & simultaneously

,"CA" appears on the display, (See

Fig.I )the meter enters to the

calibration mode ,make sure the

units setting on "PSI" to start

positive (+) pressure calibration

psi

Fig. J

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