PCE Instruments PCE-PFM 2 User manual

PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: [phone]
Fax: [phone]
[email protected]

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Contents
Page
1.Features.......................................................................................................3
2.Specifications ..............................................................................................3
3.Button .........................................................................................................5
4.Display Elements..........................................................................................6
S.Changing Setup Options ............................................................................]
5-1.Setup Options........................................................................................]
5-2.Entering or Exiting Setup...................................................................... :~
5-3.Changing a Setup Option...................................................................... :]
5-4.Duct dimension units Setting.................................................................]
5-5.Duct Shape and Parameters Setting.......................................................ß
5-6.Choose Duct Shape............................................................................... .a
5-7.Parameters Setting................................................................................,s
5-B.Auto Power Off Mode ............................................................................g
5-9.Menu Setting.........................................................................................
~ 0
5-1 O.Ciear Memory Setting.......................................................................... ~ o
5-11.Measuring Pressure.................·····························································11
5-1 2.Measuring Velocity.............................................................................. ·12
5-13.Measuring Flow....................................................................................13
5-14.Displaying Temperature........................................................................13
5-15.Holding the Displayed Readings...........................................................13
5-16.Viewing
the MIN, MAX, and AVG Readings......................................... ,n
5-17.Saving Samples.................................................................................... ~ 3
5-18.Recall and Clearing Sampie Data.......................................................... 14
5-19.Error Codes.......................................................................................... ~ 5
5-20.Replacing the Batteries.........................................................................15
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1.Features
• Larger LCD display with backlight.
•
Relative time clock on MAX MIN and AVG provides atime reference for measurement.
• Pressure, velocity or air flow measurement provides Zero Adjust.
• Display pressure, Airvelocity or air flow plus environmentTemperature simultaneously.
•
Easy to calculate the area of a reetangular or circular duct.
• USB interface, USB to UART Bridge Controller ..
• Low battery indication, and Auto Power Off mode (Sieep mode) increases.
2.Specifications
2-1.General Specifications
Operating Conditions
Storage Conditions
Power Supply
Low Battery lndicator
Dimensions
Relative Humidity
0 to 50°C
-10
to 60°C
1X 9V Battery
Yes
203mmx75mmx50mm
Non condensing (<10°C) 90% RH
(1 ooc to 30°C)75% RH (30°C to 40°C)45% RH
(40°C to 50°C)(Without Condensation)
2-2.Manometer specification
Accuracy ±0.3%FS0(25°C)
Repeatability
±0.2% (Max.+/-0.5% FSO)
Linearity/Hysteresis
±0.29% FSO
Pressure Range 5000
Pa
Maximum Pressure 10psi
Response Time 0.5 Seconds typical
Over range lndicator
Err.1
Under range lndicator
Err.2
Units Range Resolution
PSI
0.7252 0.0001
mbar
50.00 0.01
inH20 20.07 0.01
mmH20 509.8
0.1
Pa
5000 1 -

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1psi*27.68=inH20
1psi*68.947=mbar
1psi*703.072=1
*mmH20
1psi*6894.6=Pa
FSO:Full Scale Output
2-3.Range of Air Velocity
Air Velocity
mls(meter persecond)
ft/min(feet per minute)
km/h(kilometers per hour)
MPH(miles per hour)
Knots(nautical miles per hour)
2-4.Rang
of Air Flow
Air Flow Range
Range
1.00-80.00
200-15733
3.6-288.0
2.24-178.66
2.0-154.6
CFM 0-99.999ff/min
CMM 0-99.999rn3/rnin
CFM(ff/min) =Air Velocity(ft/min) xArea(ft
2)
CMM(m3 /min)=Air Velocity(rn/s)xArea(m2 )X60
CFM: cubic feet per minute
CMM: cubic meters per minute
2-S.Range
of Temperature
Resolution Accuracy
0.01
±2.5% of reading
at 10.00 m/s
1 accuracy
is function
0.1
of velocity and duct
0.01
size
0.1
Resolution
0.0001
to 100
0.001
to 100
Range Resolution Accuracy
oc
0 to 50.0°C 0.1 ±1.0°C
OF
32.0 to 122.0°F 0.1 ±2.0°F
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3.Button
1.Press ~ to turn the thermometer on or off.
2.Press "MAN/MIX" to step through the maximum, minimum, and average readings.
To exit the MANJMIX/AVG mode, press the "MAN/MIX" button for 2 seconds to
return to normal operation.
3.Press "PN/F"
to show the air velocity, press "PN/F" secondly to show the high
and length of a reetangular or the diametercircular duct, press "PN/P' thirdly to
show the air flow, press "PNIF" to showdifferential pressure again.
4.Press "Hold/Zero" to freeze or unfreeze the displayed readings. Press "Hold/Zero"
button and hold 2 seconds to zeroout the display.
S.Press "Save/Ciear" button to store sample data. Or press "Save/Ciear" button to
clear sample data in Recall mode.
6.Press "Setuplf<"
button to turn on the backlight. Press it again to turn off the
backlight. Press "Setup;fl" button for 3 seconds to start or exit Setup. (See
"Changing Setup Options.")
7.Press
"Unit"'" to changes the temperature units. ln Setup mode, press "Unit.._•
to scroll to the Setup option you want to change or press "Unit .._ .. to increase the
displayed setting. ln Recall mode, press "Unit.._• to select the desired sample number.
8.Press
"UnitT" to Changes secondly showing number units. ln Setup mode,
press "UnitT" to scroll to the Setup optionyou want to change or press "UnitT"
to increase the displayed setting. ln Recall mode, press •unit..6." to select the
desired sample number.
9.Press "Avg/Rec"
button and hold 2 seconds to enter Recall mode. ln Recall mode,
press "Avg/Rec"
to calculate the sample data. ln Setup mode, press "Avg/Rec•
button to enter a Setup option. Press "Avg/Rec" again to store the displayed
setting in memory.
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4.Display Elements
1.min : sec or hour: min Display ..
2.Pressure, Velocity, Flow or temperature modes are active
3.Primary Display.
4.Units of air velocity.
S.Units of pressure.
6.The indication
of meter communicating to PC.
7.Auto Power Off mode indicators.
8.Duct Shape choices.
9.Lowbattery indicator.
Replace the battery as soon as the low battery indicator appears.
1O.Data Hold indicator.
11 .The units of H, W or D.
12.Entering or exiting setup mode.
13.1ndicates that astored sample (orall samples) is about tobe deleted from memory.
14.The sample memory is being accessed and
the number of samples.
15.Annunciators showing that sample memory is being accessed.
16.REC, MAX, MIN and AVG indicators.
17.Temperature units
of primary display.
18.Units of air flow.
19.Temperature units of secondly display.
20.Digits for temperature and time.
20
1
-- - ~~~~~~:!" 88=
2 TEMP 8
·c - - 19
"F
PRESS VEL FLOW CFM CMM - -- 18
3
-88888
4-- ---1 knol8 MPH ft/mln m/a km/ h"F 'c ,- -- 17
5 PSI mbar lnH.O mmH.O Pa
6 PC REC MAX MIN AVGi-----16
7
4:::nl! :~
8 9 10 1112
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S.Changing Setup Options
Use Setup to chose duct shape and set the duct parameters. Sleep mode,
MaX/min/avg mode menu setting and clear memory. The thermometer stores the
settings in its memory.
5-1.Setup
Options
Option Menu item Settings
Duct dimension units
Unit Set duct dimension units in orcm
Duct Shape and parameters Duct Shape set area of measuring air flow
Auto Power Offmode SLP auto off or on
menu setting
ENU 1, 2,or 3
clear Memory Mem clear Yes or No
S-2.Entering
or Exiting Setup
When
the thermometer is in Setup mode, the display shows SETUP.
Press "Setup~" button for 2 seconds start or exit Setup.
S-3.Changing a Setup
Option
• Press •unit.&." or "Unit'Y • to scroll to the setup option you want to change.
• Press •Avg/Rec" to indicate that you want to change this setting.
• Press •unit .&. "or "Unit'Y• until the setting you want to use appears on the display.
Press "Avg/Rec" to store the newsetting in memory.
Notes: Setup
is disabled in MIN MAX/AVG mode.
S-4.Duct
dimension units Setting
•When the meter is in Setup mode, Press "Unit .&." or •unit'Y" to scroll to the duct
•dimension units setup option.
• Press •Avg/Rec" button. lt shows "in" or "cm" on the display.
•Press •unit.&."
or "Unit"Y• to scroll to the setup option you want to change.
• Press •Avg/Rec" to store the newsetting in memory.
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5-S.Duct Shape and Parameters Setting
When the meter is in parameters setup mode. The screen is show number of the
last duct shape and size that is entered. lf the duct is different than the stored
version, then find the proper duct type for the measurement (rectangular or round).
5-6.Choose Duct Shape
•When the meter is in setup mode, Press "Unit .&." or "Unit T" to scroll to the duct
shape setup option.
•Press •Avg/Rec" button. The screen shows the ••"(rectangle) or "e"(circular).
•Press •unit.&." or "Unit'Y• to scroll to the setup option you want to change.
• Press •Avg/Rec" to store the new setting in memoryand enter parameters setup
option.
Duot
Bhope
5-7.Parameters Setting
IETUP Duct IETUP
•'-.
•lf duct is rectangle, the height of duct numbers and "H="will be first shown in
the primary show.
•Press •unit.&." or "Unit'Y• button to select the decimal point.
•Press •save/Ciear" to change the station offlashing digit and press "Unit.&." or
to "UnitT" change the flashing digit from 0 to 9.
•Pres "Avg/Rec" button, the width of duct numbers and "W="will be shown in
the primary show.
• Press •PN/F" button to select the next digit.
• Press •save/Ciear" to change the station offlashing digit and press "Unit .&." or
to "UnitT" change the flashing digit from 0 to 9.
• Press •Avg/Rec" to store the new parameters in memory.
•lf duct is circular, the diameter of duct numbers and "D="will be shown in the
primaryshowthen select the duct diameter that you want to use in the same way.
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UE[I
UUBl6
H•
Duc1 • IET\.IP
lhopo ln
5-S.Auto Power Off Mode
UE[I
UUBl6
Duc1 .W. IET\.IP
lhopo ln
The meter enters sleep mode (default). That is to say, the meterwill automatically
shut off after 20 minutes if no buttonpress occurs for 20 minutes. When the meter
is in Setup mode,
the displayshows SETUP.
Press "Unit A
11
or "UnitT
11
to scroll to the "SLP" page . Press "Avg/Rec• to indicate
"On" or "OFF". Press "UnitA• or "UnitT" until the setting you want to use appears
on
the display. Press •Avg/Rec'' to store the new setting in memory. On (sleep mode
on)
or OFF (sleep mode off).
aFF
SLEEP SLEEP
SET\.IP SET\.IP

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5-9.Menu Setting
•When the meter is in Setup mode, Press "Unit .& • or "Unit .".. to scroll to the
Mode Menu setup option.
•Press •unit .&" or "Unit'f'• to scroll to the setup option you want to change.
•There are three choices for selecting.
"1". Displaypressure and airvelocityvalue.
"2". Displayairvelocity and air flow value.
"3". Display pressure, air velocity and air flow value.
•
Press •Avg/Rec" to store the newsetting in memory.
BI!'T\IP BI!'T\IP
5-1 O.Ciear Memory Setting
•When the meter is in Setup mode, Press "Unit.A." or "Unit'f'" to scroll to the clear
memory setup option.
• Press "Save/Ciear'' to select the desired sample. There are three choices forselecting.
PRESS VEL FLOW: clear all pressure, velocity and flow sample data.
PRESS: clear all pressure sample data.
VEL: clear all velocity sample data.
FLOW: clear all flow sample data.
•Press •unit .&" or "Unit'f'• until the display show ''YES", Press "Avg/Rec" , then
clear the memory.
~ES
PR al l VE L FIDW
RLL RLL
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5-11.Measuring Pressure
The Primary Display number is Pressure value, the device measures Gauge/Differential
Pressure 5000Pa, it features 5 selectable units of measure: PSI, mbar, Pa, inH2 0,
mmH
2
0.
• Press •PN/F" to enter the pressure mode and press "Unit T" to select unit.
•Connect a single hose to the "Input (+ }" port, leaving the "Ref (-}" port unconnected.
•With the tubing open to ambient conditions press and hold "Hold/Zero" for 2
seconds
to zeroout the display.
•
Place the input hose in a different zone than the Meter.
•The Meterdisplays the differential pressure of the input zone with respect to
the reference zone. For instance, a positive reading means that the input zone is
positively pressured with respect to the Meter location or its reference zone.
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5-12.Measuring Velocity
The Meter uses standard ambient conditions (temperature=21.1 ocno
0
F, barometric
pressure= 14.7
PSI I 1013 mbar), to approximate actual velocity and flow.
The primarydisplay number is air velocity, the device measures air velocity, and it
features 5 selectable units of velocity measure: rn/s, ft/min, krn/h, MPH, knots.
• Press •PN/F" to enterVelocitymode and press "Unit .,. .. to select unit.
•Connect
the hoses to the pitot tubeand to the Meter. The "Input(+)" pressure
port on the Meterconnects to the white hose from the total pressure connection
of the pitot tube. The "Ref (-)" pressure port on the Meterconnects to the black
hose from the static pressure connection of the pitot tube. the tubing open to
ambientconditions press and hold "Hold/Zero" for 2 seconds to zero out the display.
•When make the measurement, the pitot tube tip should against the measured
wind as shown in upperfigure, and ensure that the axis of the duct is aligned
with the fluid flow for ±10°. lf Measure Velocity measures negative and show
"Error"on the display, check to make sure that the hoses are attached to the
correct ports on the Meterand the pitot.
3UB~
83
6l
Pitot Tube Connection
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5-13.Measuring Flow
• Press •PN/F" to enterair flow mode and press "Unit T" to select unit ..
•The Metershows the duct shape and size. The Meterstores the last duct shape
and
size that is entered. lf the duct is different than the stored version, press
"Setup;f<" button to find the proper ducttype for the measurement (rectangular
or round). Refer to Step duct shape and parameters setting .. ("Changing Setup
Options.")
Notes:
HOLD, Save, MIN/MAX/AVG, Zero, and Setup can be used when measuring pressure,
velocity and flow.
5-14.Displaying Temperature
Ambient temperature is displayed an the secondly show as a reference. The
temperature
can be displayed in either oc or0 F. Press •unit.._" to select unit oc or
0
F.
5-1S.Holding the Displayed Readlngs
•
Press •Hold/Zero" to freeze the readings an the display .The displayshows HOLD.
• Press •Hold/Zero" again to turn off the HOLD function
5-16.Viewing
the MIN, MAX, and AVG Readings
• Press •MAN/MIX" to step through the maximum (MAX), minimum (MIN), or the
average (AVG) readings. The elapsed time since entering MAXIMIN/AVG mode,
or the time at which the minimum or maximum occurred appears on the display.
•
Press •PN/F" to show the maximum, minimum, and average of pressure, velocity
or flow, and temperature value.
•Press •MAN/MIX"
button for 2 seconds toto exit MAXIMIN/AVG mode.
5-17.Saving Sampies
The Meter saves various samples in its three major modes. Ta save a sample, do
the following:
•When taking a sample, press "Save/Ciear'' to store the sample. The Meter can
save up to 99 samples in each of its three modes.
•lf the memory is full (99 samples have been stored), more samples cannot be
stored.
lf the user attempts to store anothersample, the Metershows" FU" and
does
not save new readings.

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5-18.Recall and Clearing Sampie Data
•The Meterstores data that semetime will need tobe recall and periodically tobe
cleared. Individual samples or the entire data memory can be cleared. When the
memory is full (99 samples), it shows"FU" (Full) on the display when "Save/Ciear''
is pressed and the Meteremits short beeps and will not save anyvalue unless some
samples are cleared.
To recall sample data, do the following:
• Press •PN/F" to recall samples forthat mode.
• Press "Avg/Rec" (RECALL)and hold the button for 2 secend to recall samples.
The last measurement saved appears first. Use "Unit ... " and "Unit T" to locate the
desired sample.
•Once the samples aretaken, press •Avg/Rec"
to view the average of all the samples.
•
Press •Avg/Rec" and hold the button for 2 secend to exit recall mode.
To clear individual sample data, do the following:
• Press •PN/F" to recall samples forthat mode.
• Press •Avg/Rec" (RECALL) and hold the button for 2 secend to recall samples.
Use "Unit ..... and "Unit T" to select the desired sample.
•
Press "Save/Ciear'' to clear the sample. Note that the number of samples displayed
is reduced.
• Press •Avg/Rec" and hold the button for 2 secend to exit recall mode. To clear
all sample data, Refer
to Step clear memorysetting..("Changing Setup Options.")
REC
PAS&
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5-19.Error Codes
An error messagewill appear on the display if the meterfails an internal diagnostic
test. And
it will freeze all the buttons.
OL: Pressure or air velocity value is over the range.
-OL: Pressure value is below the range.
Error: air velocity or air flow is below the range.
5-20.Replacing the Hatteries
•Turn off the thermometer if necessary.
• Loosen the screw and remove the batterydoor.
• Replace 9V batteries.
• Replace the battery door and tighten the screw.

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