Omega Products HHP8205 Installation Manual

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 s egments when it is f irst turned
on for a pp r o x . 3 secon ds. Though you mi gh t have se en
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
screens (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 and Differential
pressure - a measure of the difference of two pressures .

Meter has 11 selectable units of measure.: bar ,mmHg, ozin ,
kgcm , psi, inH2O, kPa, ftH2O,inHg ,mH2O,mbar.

2

2

1

4 Measurement ranges are available:
Pressure range
:0~ 5 psi (HHP 8205)
:0~ 15 psi ( 8215)
:0~ 30 psi ( 8230)
:0~ 100 psi ( 8210)

Please check the tubing is not leaking or damaged before using.

HHP
HHP

HHP

CONVERSION & RESOLUTION

Quick Conversion Sheet

unit

model

HHP8205
HHP8215
HHP8230

HHP8210

Psi

5

15
30

100

inH2O

138
415

830

2768

mbar

345 0.35
1034
2068
6895

2

kg/cm

1.05

2.10

7.03

2

CONTROLS AND INDICATORS

12

11

DATA LOGGER

1

8

9

7
6

14

2

5

13

15

HOLD REL DIF

4

3

REC AVG
MAX MIN BAT

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1. Primary Data Screen displays pressure value.

2. "-" . Minus pressure display.

3. MAX MIN presssure recorded.

4. REC starts recording mode and displays max./min.
pressure recorded.

5. AVG. Average records (N/A).

6. DC power in Jack.

7. RS232 output port.

8. H/M/S 88:88:88 displays data for Hour / Minute / Second.

9. . Pressure unit indication.

10. BA T . Battery low indicator.

11. DIF. Differential pressure mode.

12. "+" Positive pressure connection.
13 . "-" Negative pressure connection.

14. HOLD. Freezes pressure reading.

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15. RE L. Establish a relative zero for the primary screen
information.(N/A)

"-" Negative
pressure

"+" Positive
pressure

AUTO POWER OFF (SLEEP FUNCTION)

This instrument will shut off automatically in approx. 20 minutes
for every power on. For recording or operating over longer

I

periods of time, you can disable the sleep mode by pressing

HOLD

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

HOLD

mode will be invalid after power off.

Fig. A

MODE OPTIONS

Delete and replace with programmable user selectable start­up mode.The display will default to the mode last used.

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HOLDHOLD

DIFDIF

RECREC

UNITUNIT

l l

++

==

==

==

DISABLE SLEEP MODE
ZERO SETTING

SELECT UNIT / SKIP CAL.

HOLD

HOLD

Hold 2 sec.

The following table lists the modes of
operation that can be invoked by
pressing the button indicated.

I

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 (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 recordmode is displayed on the LCD. Press
and hold for 3 seconds to turn off the record function

REC

and return to normal mode.

Fig. B

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

2

5

Fig. C

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

2

Fig. D

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

HOLD

Press momentarily to freeze the pressure reading . (Fig.E)

2

Fig. E

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

DIFDIF

Press momentarily ,DIF appears on top of the LCD and the

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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).

Fig. F

DIF

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

2

6

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.

UNIT

Press momentarily and the units will cycle through "bar" ,
"mmHg","ozin2","kgcm2" ,"psi","inH2O","kPa",
"ftH2O" ," inHg" ,"cmH2O" ,"mbar" ,which are

indicated on the bottom of the display (See Fig.G &H).

Fig. G

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

2

Fig. H

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

2

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.

7

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.

Always set zero before measurement .Refer to the zero
setting procedure in page 10.

Cleaning:
Use a d am p 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 Manual zero procedure.

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2. Turn the meter off.

3. Press & simultaneously ,"CA" appears on the

RECREC

display, (See Fig.I )the meter enters to the calibration mode
,make sure the units setting on "PSI" to start positive (+)
pressure calibration

Fig. I

psi

4. The meter has defaulted as 80 psi calibration point , the
adjustable pressure range is from 78.0 to 82.0 if calibration
pressure source is not 80psi ,increase by pressing key ,

RELREL

or decrease by pressing key to set calibration point as
required.

5. Save the calibration point by pressing key , "SA" and

RECREC

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.

Fig. J

psi

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6. Follow the same procedure as step 4 for the negative pressure
calibration point by pressing key , the LCD now displays

UNITUNIT

" -80.0 " and small"CA" (See Fig.K ) , do the necessary
calibration figure refer to your pressure standard if needed.

Fig. K

psi

7. Again save the calibration point by pressing key, "SA"

RECREC

and "CA"appears in 2 seconds and then "End"and "CA"
appears in another 2 seconds, the meter turns back to
the normal mode (See Fig. L ).

Fig. L

psi

If you can't save by pressing key, i.e. no "SA" appeared ,

RECREC

please check: (a) The cabliration pressure source is between

75.0 and 85.0, or check (b) if you entered the right positive
pressure (+) or negative pressure (-).

If you want to skip positive (+) calibration when in the Calibration
mode , press to skip to negative (-) calibration point.

UNITUNIT

10

Above calibration is an example for model HHP8210 , i.e. the
pressure range is from 0 to +100psi (Positive pressure ) or from
0 to - 100 psi (Negat iv e pressure).

Calibration point reference

Model:

psi
range

HHP8205
HHP8215
HHP8230
HHP8210

0~ 5
0~ 15
0~ 30
0~ 100

Calibration
point

4.000

12.00

24.00

Reommend

( )( )

3.900~4.100

11.70 ~12.30

23.40~24.60

80.00 78.00~82.00

MANUAL ZERO SETTING

When you set the display to zero( no pressure applied to the
connector), press button for 2 seconds , now the meter
displays "0 .0.0.0" from right to left (See Fig.M) and then disappears ,
the LCD display shows a normal mode .(See Fig.N)

HOLDHOLD

Fig. M

Fig. N

2

bar ozin psi kPa inHg mbar

mmHg kgcm inH2O ftH2O cmH2O

2

11

TROUBLESHOOTING

Power on but no display. Check the battery connections

?

Replace with new battery or attach optional AC adaptor.

BAT indication. Replace with a new battery when LCD

?

displays BAT at the middle bottom.

No Display. Make sure battery is not empty , if the display

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disappear, check sleep mode is active . Refer to the Disable
sleep mode function for a long time using the measurement.
Or check the tubing is connected to the meter tightly.

Err.1. For the pressure value exceeding the maximum range ,

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"Err.1" appears on the display ( See Fig. O ).Do not exceed

rated over pressure range of manometer. Sensor will
bedamaged.

Fig.O

Err. 2. For the measurement pressure less than minimum

?

range ,"Err. 2 " will appear (See Fig.P ).

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Fig. P

Err.3.For a differential pressure value larger than maximum

?

display , Err .3 appears on the display (See Fig.Q ).

Fig. Q

Err.4. When you set zero ,make sure you have disconnected

?

the tubing. If you see an Err.4 appear on the display, it means
the manometer is damaged (See Fig.R ).

P.S. Err.4 will be also appear if the tubing is connected during
zero set.

Fig.R

E1OL or E2UL. When you see the errors while operating

?

Rs232 software, it means pressure source is less or over
than the range of the instrument.

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REPLACING THE BATTERY

Replace your 9-volt battery when:

The BAT icon appears on the right of the screen.
The meter will not power on.
Use of the back-light causes the BAT icon to appear.

Even if the battery was recently replaced, check its voltage level
if you get no response from your instrument.To replace the
battery:

1. Remove the tubing of the instrument.

2. Lay the instrument face-down on a clean, flat surface.

3. Remove battery cover.

Remove battery from instruments that you do not plan to use for
a month or more. Do not leave battery in instrument.

OPERATING CONDITIONS

Compensated temperature range:0~50 C.

Operating temperature 0 ~50 C (32~122 F)

oo o

Storage temperature range: -20~60 C

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o

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Operating Humidity Max. 80% RH
Power : One 9.0 volt battery

Exceeding Maximum pressure will
cause permanent sensor damage.

Model Max.Pressure
HHP 8205
HHP 8215
HHP 8230
HHP 8210

20 psi
30 psi
60 psi

150 psi

SPECIFICA TION

Pressure

Range
Resolution

Accuracy
Dimension

Unit Weight
Response

time
Format

0~ (5 or 15 or 30 or 100 psi)
See Page 8 data sheet

0.3% of full scale at 25 C
72 x 182 x 30 mm (meter)

Approx. 220 gram (with
battery)

0.5 seconds
Baud Rate : 2400 bit/sec

Data Bit : 8 , Stop Bit : 1
P XXXXX , P - XXXXX (unit)

o

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MATERIAL SUPPLIED

This package contains:

The meter
Battery (9.0 volt)
Operation manual
Hard carrying case
Connection hose

OPTIONAL ACCESSORY:

RS232 software disk or CD with D-sub connector
DC Adaptor

RS232 OUTPUT:

The meter can link with a personal computer to capture on-line
data ,display pressure records with real- time output, you can
retrieve files , save the data for operating data analysis, record

statistics ,multi-files display in the screen,....versatile functions

for your choice.

Connection procedures:

1. P lug the optional accessory Rs232 cable onto the DC jack
port ( at the right side of the meter)

2. Insert the D-sub 9P type connector onto computer's Com.1 or
2 port or..

3. S t art to set up RS232 software by inserting the CD-ROM or
Floppy diskette.

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4. When installing the RS232 software,please follow the
operation manual procedure in the software package.

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