Page 1
975
AirMeterTM Test Tool
Users Manual
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
®
PN 2507213
August 2006
© 2006 Fluke Corporation. All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.
Page 2
LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is 2
years and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the
original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which,
in Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been
properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized
sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective
product which is returned to a Fluke authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information, then send the
product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for
damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by use outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke will
provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to
the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR
LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or
unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any
other provision.
11/99
Page 3
Table of Contents
Title Page
Introduction..................................................................................................................... 1
Features ......................................................................................................................... 1
Contacting Fluke ............................................................................................................ 2
Safety Information .......................................................................................................... 2
Symbols ......................................................................................................................... 3
Shipping Contents .......................................................................................................... 4
Using the Meter.............................................................................................................. 6
Using the Meter.............................................................................................................. 6
Softkeys and Pushbuttons......................................................................................... 6
Meter Power .............................................................................................................. 7
Meter Power .............................................................................................................. 7
Startup and Self Test................................................................................................. 8
Automatic Backlight ................................................................................................... 9
Automatic Power Off.................................................................................................. 9
Multi-Language Interface........................................................................................... 10
Measurement Units ................................................................................................... 10
Time and Date Stamp................................................................................................ 10
i
Page 4
975
Users Manual
CO Alarm .................................................................................................................. 10
The Setup Menu ............................................................................................................ 10
Taking Measurements ................................................................................................... 11
Temperature, Relative Humidity, CO, CO2, Dew Point, and Wet Bulb
Measurements ...................................................................................................... 11
% Outside Air ............................................................................................................ 11
% Outside Air (Temperature)................................................................................ 12
% Outside Air (CO2 )............................................................................................. 12
Air Velocity and Volume Flow Rate........................................................................... 13
Standard Velocity and Actual Velocity.................................................................. 13
Velocity Probe ...................................................................................................... 13
Measuring Air Velocity.......................................................................................... 13
Measuring Volume Flow Rate .............................................................................. 14
Min Max Avg.................................................................................................................. 15
Data Logging ................................................................................................................. 15
Saving Single-Point Data .......................................................................................... 15
Continuous Data Logging.......................................................................................... 16
Logging Button Lockout ............................................................................................ 17
Recalling or Erasing Logged Data............................................................................. 18
Transferring Data to a Personal Computer .................................................................... 19
Calibration...................................................................................................................... 20
Calibrating the CO and CO2 Sensors ....................................................................... 20
Calibrating the CO Sensor ........................................................................................ 21
Calibrating the CO2 Sensor ....................................................................................... 21
Maintenance .................................................................................................................. 24
Cleaning the Meter.................................................................................................... 24
Battery Maintenance and Battery Charge Indicators................................................. 24
Charging the Battery and Using the Power Adapter.................................................. 25
ii
Page 5
Contents
Changing the AA Batteries ........................................................................................ 25
General Specifications ................................................................................................... 27
Calculated Parameters .............................................................................................. 28
Environmental Specifications..................................................................................... 29
Physical Specifications .............................................................................................. 29
Agency Approvals, Certifications and Standards Compliance........................................ 30
Replaceable Parts and Accessories............................................................................... 30
(continued)
iii
Page 6
975
Users Manual
iv
Page 7
List of Tables
Table Title Page
1. Symbols................................................................................................................................. 3
2. 975 Shipping Contents .......................................................................................................... 5
3. Softkeys and Pushbuttons..................................................................................................... 6
4. Startup Failure Messages...................................................................................................... 9
5. Replaceable Parts and Accessories ...................................................................................... 32
v
Page 8
975
Users Manual
vi
Page 9
List of Figures
Figure Title Page
1. 975 Shipping Contents .......................................................................................................... 4
2. Softkeys and Pushbuttons..................................................................................................... 6
3. AC Adapter Input and USB Port ............................................................................................ 8
4. Calibration Set Up ................................................................................................................. 23
5. AA Battery Replacement and Kensington Lock Use.............................................................. 26
6. Replaceable Parts and Accessories ...................................................................................... 31
vii
Page 10
975
Users Manual
viii
Page 11
AirMeter
975
TM
Test Tool
Introduction
WWarning
Read “Safety Information” before using the
975 AirMeterTM Test Tool.
The Fluke 975 AirMeter
hand-held, five-sensor indoor air quality diagnostic
instrument. It measures, calculates, and displays:
• Temperature, dew point, and wet bulb all measured
in Celsius (°C) or Fahrenheit (°F).
• Relative humidity (%RH).
• Carbon monoxide (CO) levels measured in ppm.
• Carbon dioxide (CO
• Air velocity (standard and actual) measured in mps or
fpm.
• % outside air based on temperature or CO
• Flow rate displayed in m
• Absolute barometric pressure- shown at startup only.
TM
Test Tool (“the Meter”) is a
) levels measured in ppm.
2
.
3
/s or cfm.
2
• Minimum, maximum, and average readings for
temperature, relative humidity, wet bulb, dew point,
velocity, CO, and CO
.
2
Features
Detailed explanations of the Meter features appear later
in this manual. The Meter comes with the following
features:
• Automatic backlight
• Auto power off
• Rechargeable lithium battery, ac power, or backup
power supply of three AA batteries
• DC power supply with available international
adapters
• Multi-language user interface (English, French,
German, Portuguese, and Spanish)
• US and Metric measurement options
• Time and date stamp (12-hour or 24-hour)
1
Page 12
975
Users Manual
• Single-point and continuous data logging options
• CO alarm
• Detachable velocity probe (optional)
• FlukeView Forms software with USB cable for
downloading stored data
• Hard shell carrying case
• Protective holster
• Calibration cap and tubing
• Calibration certificate for NIST traceability
• Kensington lock-ready. See Figure 5.
Safety Information
A Warning identifies a condition or action that pose
hazard(s) to the user; a Caution identifies a condition or
action that may damage the Meter or the equipment
under test.
XWWarning
To avoid injury, or damage to the Meter,
follow these safety guidelines:
• Read the entire users manual before
using the Meter.
• Use the Meter only as described in the
Users Manual otherwise the protection
provided by the equipment may be
impaired.
• Inspect the Meter before use. Do not use
it if it appears damaged.
• The Meter contains no user-serviceable
parts. Do not open the instrument. For
service and rechargeable-battery
replacement, the instrument must be
sent to Fluke. See “Contacting Fluke”.
• Have the Meter serviced only by qualified
service personnel.
• Always use the ac adapter/charger and
connector (supplied with the Meter)
appropriate for the voltage and outlet of
the country or location in which you are
working.
WCaution
To avoid possible damage to the Meter, avoid
using the Meter in an excessively dirty or
dusty atmosphere. Excessive particle intake
can damage the Meter.
2
Page 13
AirMeter
Symbols
TM
Test Tool
Symbols
Symbols used in this manual and on the Meter are
displayed in Table 1.
Table 1. Symbols
Symbol Meaning
W Risk of danger. Important information. Refer to manual.
X Hazardous voltage. Risk of electrical shock.
P Conforms to relevant European Union directives
;
N1040
/
~
^ RC Rechargeable battery symbol
! AA Backup battery symbol
Conforms to Australian Standards
The Meter battery contains Lithium. Do not dispose of this battery as unsorted municipal waste. Contact
Fluke or a qualified recycler for disposal.
Do not dispose of this product as unsorted municipal waste. Contact Fluke or a qualified recycler for
disposal.
3
Page 14
975
Users Manual
Shipping Contents
The Meter ships with the items shown in Figure 1 and listed in Table 2.
2
1
F1 F1
VELOCITY
PROBE
3
6
F1
5
4
8
7
11
4
10
12
9
eba07f.eps
Figure 1. 975 Shipping Contents
Page 15
Table 2. 975 Shipping Contents
Item Description Item Description
A 975 AirMeter
TM
Test Tool and Holster G Users Manual (printed, English)
AirMeterTM Test Tool
Using the Meter
B
AC Adapter/Charger with type A, C, G and I
adapters to fit most countries.
H
C Three AA batteries (backup power supply) I CO and CO
975 Manuals CD containing the Users Manual in
English, French, German, Portuguese, Spanish, and
Simplified Chinese
calibration cap
2
D USB cable J Velocity probe (optional)
E Tubing for calibration K Hard shell carrying case
F
FlukeView Forms software CD and
documentation
L Calibration certificate
5
Page 16
975
Users Manual
Using the Meter
The following sections explain how to use the Meter and
its features.
Softkeys and Pushbuttons
Use the softkeys to navigate among different menus or to
select different functions. Softkeys 1, 2, and 3
correspond to prompts in the lower section of the display.
Refer to Figure 2 and Table 3. Use the pushbuttons to
select different Meter functions.
F1 F2 F3
%
OUTSIDE
AIR
Figure 2. Softkeys and Pushbuttons
CO CO
TEMP %RH
2
eba01.eps
Table 3. Softkeys and Pushbuttons
Softkey or
Pushbutton
Softkeys- Each softkey corresponds to
123
T
Q
V
L
R
M
P
S
prompts on the lower section of the
display. The prompts change depending
on what function menu is used.
CO and CO2Temperature/ % Relative
Humidity- Activates the Temperature,
Relative Humidity, CO and CO
Bulb, and Dew Point functions.
% Outside Air- Activates the % Outside
Air menu. See “% Outside Air”.
Velocity-When used with the optional
Velocity Probe, this activates the Air
Velocity and Volume Flow Rate menus.
See “Air Velocity and Volume Flow
Rate”.
Log/Save- Activates the Log/Save
menus. See “Data Logging”.
Recall- Press this button to access the
Logged Data menu. See “Recalling or
Erasing Logged Data”.
MIN MAX- Activates the Min Max Avg
function. See “Min Max Avg”.
Power- Turns the Meter on and off.
Setup- Press to enter the Setup menu.
See “The Setup Menu”.
Function
, Wet
2
6
Page 17
AirMeterTM Test Tool
Using the Meter
Meter Power
XWWarning
To avoid electrical shock or personal injury,
always match the line cord to the instrument.
• Use the line cord supplied for this
instrument with this instrument only.
• Do not use this line cord with any other
instruments.
• Do not use any other line cords with this
instrument.
• Use the proper line cord and adapter for
your country.
• Do not replace the Lithium battery. For
Lithium battery replacement, the Meter
must be sent to Fluke. See “Contacting
Fluke”.
The Meter is powered by a rechargeable lithium battery, a
supplied ac adapter, or three AA batteries used as a
backup power supply. See Figure 3 to locate the ac
power input.
Note
Before the rechargeable battery can be used, it
must first be charged for several hours. If
immediate Meter use is necessary, the backup
batteries or the line cord can be used.
This Meter contains a lithium battery.
Do not mix with the solid waste stream. Spent
batteries should be disposed of by a qualified
recycler or hazardous materials handler.
Contact your authorized Fluke Service Center for
recycling information.
A fully-charged Meter operates for 11 hours. The backup
power supply lasts 7 hours.
See “Maintenance” for information on how to charge the
Lithium battery and how to change the AA batteries.
The adapter/charger includes adapters that fit
receptacles in most countries.
/
Note
Note
7
Page 18
975
Users Manual
Startup and Self Test
To turn the Meter on, press and hold P for a few
seconds and wait for the flashing red LED on the left side
USB Port
AC Adapter
Input
Figure 3. AC Adapter Input and USB Port
eba02f.eps
of the display. Press
OFF. Once powered up, the following information is
displayed:
• Battery charge indicators
• Model number of the Meter (975)
• Firmware version number
• Current date
• Last calibration date
• Calibration due date
• Absolute barometric pressure
• Self-test countdown
At power up, the Meter performs a 35-second selfdiagnostic test for each of its functions. When it passes
the self-test, the Meter is ready for use. Refer to Table 4
for a list of self-diagnostic test failures.
If portions of the self-test fail, some functions of
the Meter may still be used but this is not
recommended. Have the Meter serviced
immediately. Refer to “Contacting Fluke” for
service details.
P for 2 seconds to turn the Meter
Note
8
Page 19
AirMeterTM Test Tool
Using the Meter
Table 4. Startup Failure Messages
Failure Message Action
Temperature Sensor: FAIL
Humidity Sensor: FAIL
CO: FAIL
: FAIL
CO
2
W SELF TEST: FAILED
Please Service Instrument
Battery Empty
System is Shutting
Down…
PROBE ERROR
W Calibration OVERDUE
Please Refer to Manual
Have the Meter serviced. The
Meter may still be used. Wet
bulb, Dew point,Temperature and
Humidity functions are
unavailable. CO or CO
are inaccurate.
Have the Meter serviced. The
Meter may still be used. CO or
functions are unavailable. If
CO
2
either sensor fails, then
calculations are incomplete.
Have the Meter serviced. The
Meter has internal failures.
Message appears until the Meter
is serviced.
If the battery is below minimum
charge, the Meter shuts down
until the battery is recharged or
the Meter is connected to ac
power. See “Battery
Maintenance”.
Problem with the Velocity probe
or the connection. Remove and
reattach the probe. If the problem
continues, have the probe
serviced.
Calibrate the Meter. Calibration
date for the Meter has passed.
See “Calibration”.
readings
2
Note
The Meter settling time is less than 1 minute.
Severe changes or differences in temperature
between the Meter and the measuring
environment may require more settling time.
Automatic Backlight
The Meter’s backlight senses low-light conditions and
automatically turns on when necessary. The backlight
turns off after 30 seconds of Meter inactivity. To turn it
back on, press any button. The button pressed will not
activate its normal function. In low light, any button
pressed will turn the backlight on for 30 seconds. See
“The Setup Menu” to disable the auto backlight off.
Automatic Power Off
To conserve battery power, the Meter goes into sleep
mode after 20 minutes of non-use and remains in this
mode for 12 hours. After 12 hours in sleep mode, the
Meter completely shuts down. Use the Setup menu to
disable this function or to select 30 or 60 minute time out
periods. See “The Setup Menu”. Automatic power off is
disabled during logging.
9
Page 20
975
Users Manual
Multi-Language Interface
The Meter’s display supports five languages: English,
French, German, Portuguese, and Spanish. Use the
Setup menu to change the display language. See “The
Setup Menu”.
Measurement Units
The Meter supports both Metric and US measurement
units. Select the desired measurement format using the
Setup menu. See “The Setup Menu”.
Time and Date Stamp
The Meter features an on-board, user settable clock that
logs the time and date for each captured reading. The
current date is displayed when the Meter is powered on.
The Meter continues to keep time when it is powered off.
To change the time and date format, see “The Setup
Menu”.
CO Alarm
The Meter is equipped with a CO alarm. By default, the
alarm is reset to 35 ppm every time the Meter is turned
off. Using the Setup Menu, set the alarm threshold
anywhere from 1 ppm to 200 ppm. When the amount of
carbon monoxide exceeds the limit, the alarm triggers.
The Meter emits an audible alarm and a red LED flashes.
See “The Setup Menu”.
The Setup Menu
Use the Setup menu to change the following Meter
parameters:
• Set Time
• Set Time Format: 12 or 24 hour modes
• Set Date
• Set Date Format: M/D/Y or D/M/Y
• Temperature Scale: °C or °F
• Measurement Units: Metric or US
• CO Alarm: specifies measurement at which the alarm
sounds from 1 ppm to 200 ppm
• Auto Power Off
• Calibration Cycle (1-365 days) [user-configurable]
• Backlight: enables or disables auto backlight off
• Language: the user interface language can be
changed to English, French, German, Portuguese, or
Spanish.
• Keypad Beep: enables or disables the keypad
beeper. The CO alarm is not affected.
To modify the Meter setup parameters:
1. From any screen, press Sto enter the Setup
menu editing mode.
2. Press 1 [
a listed setup item.
3. Press 3[Select] to make the desired item active.
W Item] and 2 [
Item] to highlight
X
10
Page 21
AirMeterTM Test Tool
Taking Measurements
4. Press 1 and 2 as necessary to change the
item values. Hold down 1 or 2 to increase
the rate of change.
5. Press 3[Select], or in some cases [Done], to store
the changes.
6. Press S for 2 seconds to exit the Setup menu. All
changes are stored.
Taking Measurements
The Meter measures:
• Temperature, Dew Point, and Wet Bulb
• Relative Humidity (%RH)
• Carbon monoxide (CO) levels
• Carbon dioxide (CO
• % Outside Air
• Air Velocity (standard and actual)
• Flow Rate
Temperature, Relative Humidity, CO, CO2, Dew Point, and Wet Bulb Measurements
When the Meter completes and passes its self-test, it is
ready to take temperature, relative humidity, CO, CO
dew point, and wet bulb readings. If the Meter is
displaying another function menu, press
Temperature, relative humidity, CO, and CO
shown on this screen.
• Dew point is the temperature at which condensation
starts. To view the dew point from the main menu,
) levels
2
T.
readings are
2
,
2
press 1[Dew Point]. The dew point reading
appears on the top right of the display.
• Wet bulb temperature is the lowest temperature that
evaporating water can reach. To view the wet bulb
temperature from the main menu, press 3[Wet
Bulb] (or 1[Wet Bulb] if the Meter is displaying dew
point temperature). The wet bulb reading appears on
the top right of the display.
From either the wet bulb or dew point screens, press
3[Main] to return to the main screen.
% Outside Air
Air conditioning systems rely on outside air, mixed air,
and return air to help cool, heat, or purify their output. A
balance of the three is also a factor in achieving optimumenergy usage from the conditioning unit.
The Meter’s Percentage (%) Outside Air function
computes the percentage of outside air two different
ways, either by measuring temperature or by measuring
CO
content.
2
The formula for calculating % outside air is:
% Outside Air = (Return Air – Mixed Air) x 100 %
Return Air – Outside Air
Determining the % outside air requires entering values for
return air, outside air, and mixed air into the formula.
These values can be in temperature or CO
values can be measured with the Meter or, in the case of
outside air, can also be entered manually. Once the
content. The
2
11
Page 22
975
Users Manual
variables are known, the Meter computes the % outside
air.
% Outside Air (Temperature)
To obtain % of outside air using temperature:
1. Place the Meter sensor perpendicular to the air
stream being measured.
2. Press
Q.The Meter switches to % outside air
measuring mode and offers choices of 1[CO
3[Temp]
.
2
] or
3. Press 3[Temp]. The Meter measures and
displays the return air temperature.
4. Press 1[Capture] to store the return air reading.
The Meter then measures and displays the mixed air
temperature.
5. Press 1[Capture] to store the mixed air reading.
The Meter then measures and displays the outside
air temperature.
6. Outside air temperature can either be measured by
using 1[Capture] or it can be entered manually by
pressing 2[Manual Entry] and entering the known
outside air temperature value. When entering
manually, use 2[UP] and 3[DOWN] to change
the temperature reading to the desired number.
Press 1[ENTER].
7. Once the outside air temperature is entered, return
air, mixed air, and outside air temperatures are
displayed. Press 1[Calculate] to show the %
12
outside air, or press 3 [Back] to change any of
the measurements.
8. Press 3[Done] to end the % outside air
measurement.
% Outside Air (CO2 )
Measuring the % outside air using carbon dioxide (CO2) is
similar to measuring the percentage of outside air via
temperature.
To obtain the % outside air using CO
1. Place the Meter sensor perpendicular to the air
stream being measured.
2. Press
Q. The Meter switches to the % outside air
measuring mode and offers the selection choice of
1[CO
3. Press 1[CO
the return air CO
] or 3[Temp]
2
]. The Meter measures and displays
2
content.
2
.
4. Press 1[Capture] to store the return air reading.
The meter then measures and displays the mixed air
CO
content.
2
5. Press 1[Capture] to store the mixed air reading.
The Meter then measures and displays the outside
air CO
content.
2
6. Outside Air CO
using 1[Capture] or it can be entered manually by
content can either be measured by
2
pressing 2[Manual Entry] and entering the known
outside CO
2[UP] and 3[DOWN] to change the CO
content. When entering manually, use
2
:
2
2
Page 23
AirMeterTM Test Tool
Taking Measurements
content reading to the desired number. Press
1[ENTER].
7. Once the outside air CO
air, mixed air, and outside air CO
in parts per million (ppm). Press 1[Calculate] to
show the % outside air or press 3 [Back] to
change any of the measurements.
8. Press 3[Done] to end the % outside air
measurement.
content is entered, return
2
content are shown
2
Air Velocity and Volume Flow Rate
Note
The optional Velocity Probe is required for
Velocity readings.
The Meter measures air velocity and volume flow rate to
determine the overall velocity reading. Standard and
Actual velocity readings are available.
Standard Velocity and Actual Velocity
Standard Velocity is the velocity that air moves if
temperature and pressure are compared to standard
conditions. Standard conditions for the Meter are 21.1 °C
(69.98 °F) and 101.4 kPa (29.93 in Hg).
Actual Velocity is standard velocity which is adjusted
using ambient barometric and temperature conditions.
Velocity Probe
When measuring velocity, the velocity probe must be
connected to the Meter. If the probe is not connected or it
fails the self test, the velocity feature is disabled. The
Meter alerts the user to either attach the probe or that
there is a probe error.
Note
The velocity probe takes approximately one
minute to warm up.
Measuring Air Velocity
Note
To measure standard or actual air velocity the
steps are the same with the exception of
entering the standard or actual velocity menu.
To measure velocity:
1. Attach the velocity probe.
2. Press
3. Press 3[Air Velocity].
4. Place the wand sensor perpendicular to the air
Vto enter the velocity menu. The probe will
initialize.
stream being measured.
Note
The white dot on the probe MUST face into the
air stream for accurate readings.
13
Page 24
975
Users Manual
5. Press 2[Capture] to capture the standard velocity
reading, 1[Actual] to change to the actual velocity
menu, or 3[Back] to return to the velocity menu.
Note
In this case, pressing 2[Capture] does not
create a single point data log, it simply freezes
the display reading.
6. If the standard reading was captured, press
1[Actual] to view the actual air velocity reading,
7. Press 3[Done] to return to the velocity menu.
Measuring Volume Flow Rate
The formula for measuring the air flow volume rate is to
multiply the area of the air-duct opening by the average
velocity of the air. The Meter does the computation after
the variables are entered.
To measure the volume flow rate:
1. Attach the velocity probe.
2. Press Vto access the velocity menu. The probe
will initialize.
3. Press 1[Volume Flow Rate].
4. The volume flow rate screen appears. Select the duct
type matching that being measured:
• 1[Rectangle Duct]
• 3[Round Duct]
• 2[Other] to manually enter the area number
Choose measurement units in inches (if the Meter is set
to Metric measurements, enter units in centimeters).
5. Enter the duct measurements:
• If 1[Rectangle Duct] is pressed, enter the x
(length) and y (height) measurements using the
up and down arrows. Press 3 [ENTER X] or
[ENTER Y] once each measurement is entered.
• If 3[Round Duct] is pressed, use the up and
down arrows to enter the duct’s diameter.
6. Place the wand sensor perpendicular to the air
stream being measured with the white dot facing into
the air stream.
7. Press 1[Capture]. The standard velocity flow rate
measurement is displayed. Continue capturing
samples as needed.
Note
The Meter can take up to 99 samples.
8. When all samples have been captured, press
3[Calculate Flow]
flow rate is displayed.
9. Press 2[Actual]to view the actual velocity volume
flow rate.
10. Press 3[Back] to return to the flow rate sample.
11. Press 1[Done]to return to the the Velocity menu.
. The standard velocity volume
14
Page 25
AirMeterTM Test Tool
Min Max Avg
Min Max Avg
The Min Max mode stores minimum (MIN) and maximum
(MAX) input values. When the input drops below the
stored minimum value or above the stored maximum
value, the Meter beeps and stores the new value. Min
Max mode also calculates an average (AVG) of all
readings taken since the mode was activated.
Min Max mode works with Temperature, CO, CO
Relative Humidity, Dew Point, Wet Bulb, and Air Velocity.
To use Min Max mode, press M. The maximum
reading appears first. Each subsequent press of
steps through the minimum, average, and live readings,
and back to the maximum reading.
To deactivate Min Max mode, hold
two seconds.
Mfor approximately
,
2
M
Data Logging
The Meter logs discrete (single-point) or continuous data.
Data logs are viewed on the Meter or can be uploaded to
a PC running FlukeView Forms software. Refer to
“Transferring Data to a Personal Computer” for more
information.
Saving Single-Point Data
The Meter is able to save single-point data logs in nonvolatile flash memory.
Single-point data logs list measured parameters,
calculated duct volume flow rates, or % outside air.
Single-point logs include:
• Sample ID (1-99)
• Temperature
• Relative Humidity
• Wet Bulb
• Dew Point
• CO
• CO
• Time/date stamp
Velocity, duct volume flow rate and % outside air logs
include:
• Sample ID (1-99)
• Time/date stamp
• Velocity (actual or standard) or calculated duct
volume flow rate, or % outside air calculation results
2
15
Page 26
975
Users Manual
To save single-point data:
1. Take a desired measurement.
2. Press
L. The Log/Save menu appears on the
display. The measurement that was displayed when
Lwas pressed is the measurement that will be
saved.
3. Press 3[Save Data]. The Meter shows
“Saving…”.
4. The data is saved and the Meter returns to the
screen where the data originally was taken.
Note
Press 2 [Cancel] to cancel data saving and to
exit the Log/Save menu. All other keys are
inoperative while logging.
When the Meter’s storage memory is full, the
entire memory must be erased to make room for
more data. See “Recall or Erasing Logged Data”.
Values displayed using Min, Max, or Avg
functions cannot be logged. However,
FlukeView
Avg for single-point and continuous logged data.
Forms will display Min, Max, and
Continuous Data Logging
Continuous data logging stores records in non-volatile
flash memory.
Continuous data logs include:
• Session number
• Temperature
• Relative humidity
• Wet bulb
• Dew point
• CO
• CO
• Air velocity (if the probe is connected)
• Time/date stamp
• Sample ID/total number of samples
Logging can automatically save data taken over a period
of minutes or up to 99 hours. Up to 25,000 records can be
stored. To begin a logging session:
1. Start a desired measurement.
2. Press
3. Press 1[Start Logging].
4. Use 2[UP] or 3[DOWN] to change the duration
2
L. The Log/Save menu appears on the
display.
time. Press 1[ENTER] to advance to the next
changeable parameter.
16
Page 27
AirMeterTM Test Tool
Data Logging
5. Once the desired parameters have been entered, the
display shows the selected duration time, sampling
interval, and the available memory %.
6. The Meter requests user confirmation before starting
a logging session:
• Press 1[Yes] to confirm the settings and
begin logging.
• Press 2[Adjust] to change logging
parameters.
• Press 3[Cancel] to return to exit the logging
mode.
The Meter logs the sessions until stopped or the logging
interval has expired. To stop logging, press 2[Stop].
All other keys are inoperative while logging.
Notes
• When continuously logging data, the logs are
stored using the selected measurement units
(Metric or US). To change units, logging must be
stopped and a new log created.
• If the Meter memory is full, the memory must be
cleared or the parameters of the measurement
must be changed to accommodate the new
readings. Follow the on-screen prompts to make
adjustments.
• The Meter cannot be turned off while in
logging mode. Logging must be completed
or 2[Stop] must be pressed to cancel
logging prior to turning the Meter off.
Logging Button Lockout
The Meter has an automatic and manual button lockout
feature to prevent accidental button pushes during a
continuous logging session.
During logging, the automatic button lockout is engaged
and only 2 [STOP] is active which will end logging.
To manually lock the entire keypad, press
and Tsimultaneously for 3 seconds. All buttons will be
inoperative until the button sequence is repeated.
M, S,
17
Page 28
975
Users Manual
Recalling or Erasing Logged Data
Use the Recall function to retrieve or erase the single
point or continuous logging session records.
To view single points of data:
1. Press
2. Press 3[Single Point]. Detailed sessions appear
3. Press 1[Next] or 2[Previous] to move the
4. If the velocity probe is attached, press 3 to
To view logged sessions:
1. Press
2. Press 1[Logged Sessions]. Logged sessions
3. Press 1[Next] or 2[Previous]to move the
R to show the Recall menu.
on the display starting with the most recent sample.
cursor to the previous or next detailed sample.
access the velocity section of the sample.
R to show the Recall menu.
appear on the display starting with the most recent
session.
cursor to the previous or next detailed session.
Listed session parameters are:
• Session number
• Temperature
• Relative Humidity
• Wet Bulb
• Dew point
• CO
• CO
• Sample ID/total number of samples
• Time/Date stamp
• Velocity (push 3 for access)
4. Press 1[Next Sample] or 2[Previous Sample] to
move to the next or previous session.
To escape recall mode, press Q, T, or V.
To erase single points or logged sessions:
1. Press
2. Press 2[Erase Memory].
3. Press 1[Item] to choose either Single Data
Points or Continuous Logged Sessions.
4. Press 2[Erase Memory].
5. Press 1[YES] to confirm that the memory is to be
erased or 3[Cancel] to abort erasing any data.
2
R to show the Recall menu.
18
Page 29
AirMeterTM Test Tool
Transferring Data to a Personal Computer
Transferring Data to a Personal Computer
Data that is collected and stored in the Meter’s memory
can be downloaded to a personal computer (PC) using
the included FlukeView Forms Documenting Software
and USB cable. See Figure 3 to locate the USB port on
the Meter. To install the software, see the “FlukeView
Forms Installation Guide” that comes with the software.
Notes
• The Meter cannot measure or log data while
the USB cable is connected.
• Before the USB cable can be used with the
Meter, the Meter software drivers must be
installed on a PC running Windows XP or
2000. These drivers are available on the
FlukeView
Version 3.2 software CD.
To transfer data from the Meter to the computer:
1. Install FlukeView Forms Documenting Software on
the PC. (See Installation Guide).
2. Connect the USB cable to the Meter and to an open
USB port on the PC.
3. Power up the Meter if it is not already on.
4. Windows should show that it’s found new hardware
and will ask for new drivers. Point to the FlukeView
Forms CD.
5. Open FlukeView Forms Documenting Software.
Forms Documenting Software
6. The current COM serial port setting is displayed at
the bottom right of the FlukeView Forms window.
Double-click it to change the COM port setting to the
virtual COM port used by the USB cable.
7. Transfer data from the Meter to the PC by following
the instructions found in the online FlukeView
Forms Users Manual.
Notes
• To locate the PC COM port that is used
by the Meter:
1. Select Start/Settings/Control
Panel from the PC desktop task
bar.
2. From the control panel, select
System/Hardware then Device
Manager.
3. From the Device Manager, select
Ports (COM & LPT), note which
COM port the Meter is connected
to.
• To ensure no data is lost, verify that the
download was successful before
deleting the stored test results on the
Meter.
• Data stored in the Meter can be deleted
from the PC using the FlukeView
Forms application. See the FlukeView
Forms Users Manual file for details.
19
Page 30
975
Users Manual
Calibration
Calibration due dates are tracked using the Meter’s clock
and stored in non-volatile memory. Due dates can be
configured by the user from one to 365 days. When the
Meter reaches its calibration due date, it alerts the user
but will continue to operate.
The Meter’s CO and CO
user or returned to Fluke for service. See “Contacting
Fluke”. The recommended calibration interval is 1 month
for CO and 1 year for CO
Gas canisters are available as an accessory allowing the
user to calibrate the CO and CO
Install the calibration cap and attach the hose to the
correct gas canister; mixed CO and CO
gas, Nitrogen for zeroing gas when calibrating CO
Figure 4.
Calibration gas is applied at the rate of ½
liter/minute for 2 minutes.
sensors can be calibrated by the
2
.
2
sensors.
2
for calibration
2
. See
2
Note
Calibrating the CO and CO2 Sensors
Calibrate the CO and CO2 sensors together, or
separately.
To simultaneously calibrate both sensors,
1. If not already in calibration mode, press L, R,
and S simultaneously for 3 seconds to enter
calibration mode.
2. Press 1 [Yes] to initiate the calibration procedure.
3. Press 3[BOTH].
The Meter display reads:
Calibration Procedure
Apply Nitrogen…
4. Apply ½ litre/minute of nitrogen for 2 minutes. Press
3[Cancel] to exit calibration.
5. When sensor zero is complete, remove the nitrogen
and press 2[OK] or 3[Cancel] to exit
calibration.
The Meter displays:
Apply CO Calgas concentration…
6. Enter the concentration amount using 1[DOWN]
and 2[UP] to change the entry and 3[ENTER]to
store it.
20
Page 31
AirMeterTM Test Tool
Calibration
7. Apply the calibration gas mixture of CO and CO2.
Press 2[OK] or 3[Cancel] to exit calibration.
8. When finished, remove gas and press 3 [OK].
Enter the time to next calibration date. Use
1[DOWN] and 2[UP] to change the number
and 3[ENTER]to store the number.
The calibration procedure is complete.
Calibrating the CO Sensor
To calibrate the CO sensor:
1. With the calibration cap on, press L, R, and
S simultaneously for 3 seconds to enter
calibration mode.
2. Press 1 [Yes] to initiate the calibration procedure
or press 3[Cancel] to exit calibration mode.
3. Press 1[CO]. The Meter zeros the CO sensor. If
desired, press 3[Cancel] to abort Meter
calibration.
4. Use 1[DOWN] and 2[UP] to change the gas
concentration (ppm). Press 3[ENTER]to enter the
concentration level.
5. The Meter prompts to apply the CAL Gas. Attach the
mixed CO and CO
Meter via the supplied hose or press 3 [SKIP] to
exit.
6. The Meter calibrates the CO sensor. Press 3 to
cancel. W
hen finished, remove gas and press 3
[OK]. Enter the time to next calibration date. Use
calibration gas canister to the
2
1[DOWN] and 2[UP] to change the number
and 3[ENTER]to store the number.
Note
When either CO or CO
the calibration date is reset by the user.
sensors are calibrated,
2
CO calibration is now complete and the Meter exits
calibration mode.
Calibrating the CO2 Sensor
To calibrate the CO2 sensor:
1. If not already in calibration mode, with the calibration
cap on, press L, R, and S simultaneously
for 3 seconds to enter calibration mode.
2. Press 1 [Yes] to initiate the calibration procedure
or press 3[Cancel] to exit calibration mode.
3. Press 2[CO
4. Specify one-point or two-point calibration methods.
The one-point method uses CAL gas only. The twopoint method uses CAL gas and also Neutral gas
(Nitrogen).
].
2
21
Page 32
975
Users Manual
If one-point is chosen:
a. Use 1 [DOWN] and 2[UP] to choose the
CAL gas concentration.
b. Press 3[ENTER] to enter the concentration.
c. Apply the CAL gas and press 2[OK], press
3 [SKIP] to exit calibration mode. The Meter
will now calibrate the CO
press 3 [Cancel] to exit calibration mode If
sensor for 2 minutes.
2
calibration fails, repeat the procedure. If it fails a
second time, have the Meter serviced.
d. The Meter finishes the procedure then prompts
the user to enter the time until the next
calibration. Enter the amount using 1[DOWN]
and 2[UP] to change the number and
3[ENTER] to store the number.
If two-point is chosen:
a. Apply the neutral gas (Nitrogen) or press 3
[Cancel] to exit calibration mode.
b. When zeroing is complete, remove neutral gas
(Nitrogen) and press 2[OK] or 3 [Cancel]
to exit calibration mode.
c. Apply the CAL gas. Enter the amount using
1[DOWN] and 2[UP] to change the number
and 3[ENTER] to store the number
.
d. Apply cal gas and press 2[OK] or 3 [Cancel]
to exit calibration mode.
e. The Meter finishes the procedure then prompts
the user to enter the time until the next calibration.
Enter the amount using 1[DOWN] and
2[UP] to change the number and 3[ENTER]
to store the number.
CO
sensor calibration is now complete and the Meter
2
exits calibration mode.
22
Page 33
AirMeterTM Test Tool
Calibration
F1
F1
F1
VELOCITY
PROBE
eba09f.eps
Figure 4. Calibration Set Up
23
Page 34
975
Users Manual
Maintenance
XWWarning
The Meter contains no user-serviceable
parts. To avoid electric shock, injury, or
damage to the Meter, do not open the case.
For service and rechargeable battery
replacement, the Meter must be sent to
Fluke. See “Contacting Fluke”.
Cleaning the Meter
Periodically wipe the case and holster with a damp cloth
and mild detergent.
WCaution
To avoid damaging the Meter, do not use
abrasives or solvents to clean the Meter
case.
Battery Maintenance and Battery Charge Indicators
The Meter normally uses a rechargeable battery but is
equipped with three AA batteries for backup power. The
following sections explain how to charge or change the
batteries.
Battery charge indicators for both the rechargeable
battery and the backup power supply appear on the
display at start up. Use these indicators to assess the
battery charge:
^RC !AA – Rechargeable battery and backup batteries
are fully charged.
When both the rechargeable battery and the backup
supply are installed in the Meter, the battery indicators
display as follows:
(RC – After the startup period, the indicators
disappear until the rechargeable battery
reaches 25 % of charge capacity.
(RC !AA – When the rechargeable battery reaches
10 % of charge capacity, both icons
appear.
)RC !AA – When the rechargeable battery reaches
0 % of charge capacity, the rechargeable
battery icon flashes.
)RC %AA – When the rechargeable battery reaches 0 %
of charge capacity, and the backup supply
reaches 25% of charge capacity, both icons
flash.
)RC )AA – When the rechargeable battery reaches
0 % of charge capacity, and the backup
supply reaches 10 % of charge capacity,
both icons flash.
24
Page 35
AirMeterTM Test Tool
Maintenance
When the Meter’s rechargeable battery and backup
supply are at 0 % of charge capacity, the Meter displays
the following message:
Battery Empty
System is
Shutting Down…
The Meter then shuts itself off.
The battery indicators act differently when the backup
supply is not present.
When only the rechargeable battery is in use, the battery
indicators display as follows:
• When the rechargeable battery is completely
charged, the indicator shows only at startup.
• (RC – Rechargeable battery charge is at 25 % of
capacity.
• )RC – Rechargeable battery charge is at 10 % of
capacity (flashing).
Charging the Battery and Using the Power Adapter
/ Note
This Meter contains a rechargeable lithium
battery that cannot be serviced by the user.
Do not mix this battery with the solid waste
stream. Spent batteries should be disposed of by
a qualified recycler or hazardous materials
handler.
Contact your authorized Fluke Service Center for
recycling information.
The ac adapter is used to recharge the battery as well as
power the Meter. This feature allows the Meter to be used
while the battery is charging. Allow 2 hours to fully
recharge the battery.
To connect the ac adapter/charger, see Figure 3:
1. Plug the charger into the dc jack on the base of the
Meter.
2. Using the correct adapter for your country, plug the
ac adapter into an ac outlet.
Changing the AA Batteries
To change the AA batteries used for backup power. See
Figure 5. To replace the lithium battery, return the Meter
to Fluke. See “Contacting Fluke”.
25
Page 36
975
Users Manual
26
Figure 5. AA Battery Replacement and Kensington Lock Use
eba08f.eps
Page 37
AirMeterTM Test Tool
General Specifications
General Specifications
Measured
Parameters
Temperature
Relative
Humidity
Range
-5 ° to 140 °F
-20 ° to 60 °C
10 to 90 % R.H.
non-condensing
50 to 3000 fpm
Air Velocity
0.25 to 15
m/sec
CO2 0 to 5000 ppm 1 ppm
CO 0 – 500 ppm 1 ppm
*Note: After the CO calibration seal is removed and the Meter is stored for an extended period in arid or humid conditions,
verify that the sensor is within specification by applying a known concentration of gas using the calibration gas kit.
Display
Resolution
0.1 °F
0.1 °C
1 %
1 fpm
0.005 m/sec
Accuracy % of Reading
±0.9 °C /±1.62 °F from 40 °C to 60 °C
±0.5 °C /±1.00 °F from 5 °C to 40 °C
±1.1 °C /±1.98 °F from -20 °C to 5 °C
±2 %RH from 10 %RH to 90 %RH
Hysteresis Spec 1%
4 % or 4 fpm*
3 % or 0.015 m/sec*
whichever is greater
* Accuracy specification only valid for velocity readings above 50 fpm.
Warm up time 1 min (5 minutes for full specification)
2.75% + 75 ppm
±5 % or ±3 ppm, whichever is greater,
@ 20 °C and 50 %RH
Additional de-rating over Temperature:
±0.6 %/°C from calibration temperature
±0.6 %/°C < 20 °C
Long term drift < 2 % per month.
Maximum shift in arid or humid storage conditions*: ±0.6 % per day
(Reference storage test conditions:
50 °C, 15 % RH and 30 °C, 95 % RH)
27
Page 38
975
Users Manual
Calculated Parameters
Calculated
Parameters
Dew Point Temperature
Wet Bulb Temperature
Volume Flow Rate
(in a duct)
% outside air
(Based on Temperature)
% Outside Air
(Based on CO
Minimum, Maximum and
Average on all measured
parameters
)
2
Range
-44 to 57 °C
-47 to 135 °F
-16 to 57 °C
3 to 135 °F
0 to 140,000 cfm
0 to 3,965 M
3
/m
0.1 °C
0.1 °F
0.1 °C
0.1 °F
1 cfm
0.001 M3/m
0 to 100 % 0.1 % N/A
0 to 100 % 0.1 % N/A
Per measured
parameter spec
Per measured parameter
spec
Display
Resolution
Accuracy
±1 °C When
Temp: -20
RH: 40 %
± 2
Temp: -20
RH: 20 %
± 4
RH: 10 %
±1.2 °C when :
RH: 20 %
Temp: –20
± 2.1
RH: 10 %
N/A
The volume flow calculation will
be a simple average of the data
points times the duct area
°C to 60 °C
to 90 %
°C When
°C to 60 °C
to 40 %
°C When
to 20 %
to 90 %
°C when :
to 20 %
°C to 60 °C
Per measured parameter spec
28
Page 39
AirMeterTM Test Tool
General Specifications
Environmental Specifications
Operating Temperature
CO and CO
Sensors: -20 to 50 °C (-4 to 122 °F)
2
Operating Temperature
All other functions: -20 to 60 °C (-4 to 140 °F)
Storage Temperature: -20 to 60 °C (-4 to 140 °F)
Humidity: 10 to 90 % non-condensing
Altitude: Up to 2000 m (6562 ft)
Shock and Vibration: Per MIL-PRF-28800F: Class 2
Physical Specifications
Meter size: 28.70 cm x 11.43 cm x 5.08 cm (11.3 in x 4.5 in x 2 in)
Meter weight: 0.544 kg (1.2 lb)
Hard-shell case size: 11.93 cm x 35.65 cm x 43.18 cm (4.7 in x 14 in x 17 in)
Velocity probe size: 28.70 cm, 99.06 cm extended x 2.54 cm (11.3 in, 39 in extended x 1 in)
Velocity probe weight: 198 g (7 oz )
Impact resistance: 1 m drop test (3.28 ft drop test)
Power supply:
Backup power supply:
Battery life:
Rechargeable Lithium battery or Universal AC power adapter with plug
adapters for USA, Great Britain, Europe, and Australia
3 AA batteries used as backup power
Rechargeable Lithium battery - 11 hours (at room temperature)
Backup AA batteries - 7 hours
29
Page 40
975
Users Manual
Agency Approvals, Certifications and Standards Compliance
The Meter complies with the following standards and
meets requirements for the following certifications:
EMC: EN61326-1. Class B
FCC Part 15 Class B
Industry Canada: ICES-003 Class B
UL 1642
AS/NSZ CISPR 11 Class B
Safety: EN61010:2001
;
N10140
P
Replaceable Parts and Accessories
To order parts and accessories for the Meter, refer to
Figure 6 and Table 5.
30
Page 41
AirMeterTM Test Tool
Replaceable Parts and Accessories
1
2
3
4
5
6
7
10
12
9
8
13
14
15
11
Figure 6. Replaceable Parts and Accessories
eba10f.eps
31
Page 42
975
Users Manual
Item Number
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Table 5. Replaceable Parts and Accessories
Part Number
or Model Number
2514351
2514336
2514349
2664162
2664357
2526937
Air Velocity
Probe
Calibration Kit
2679599
2665668
2679501
TPAK80-4
1578384
2507224
2507213 Users Manual (printed English)
Holster
Battery Door
Tilt Stand
AC Power Adapter
International Adapter Blade Kit containing type A, C, G, and I adapters to fit most
countries
Cap, Temperature/Humidity Probe
Air Velocity Probe (optional)
Carrying case, zeroing gas canister (nitrogen), mixed CO and CO
canister, tubing, calibration-flow regulator valve, and calibration caps (optional)
Calibration tubing, Plastic 2 ft x ¼ inch
USB Cable
Hard Shell Carrying Case
ToolPak accessory kit (optional)
FlukeView
975 Manuals CD containing the Users Manuals in English, French, German,
Portuguese, Spanish, and Simplified Chinese
Forms Documenting Software
Description
calibration gas
2
32
Loading...