OPERATION MANUAL
PORTABLE IAQ METER
CO2+RH+TEMP.
IAQ METER/LOGGER
INTRODUCTION
Thank you for purchasing this portable
IAQ meter. The meter measures CO
level, air temp., dew point, wet bulb temp.
and humidity and is an ideal instrument for
indoor air quality (IAQ) diagnosis.
Poor indoor air quality is considered
unhealthy because it causes tiredness,
loss of ability to concentrate, and even
illness(ex. Sick Building Syndrome). IAQ
monitoring and survey, especially on CO
level and air ventilation become widely
applied in public areas such as offices,
classrooms, factories, hospitals and
hotels. It is also suggested in regulations
of industrial hygiene in some countries.
(Appendix)
2
2
The portable CO meter uses NDIR (non-
2
dispersive infrared) technology to ensure
the reliability and long term stability. It’s
useful in verifying HVAC system performance and air ventilation control.
MATERIAL SUPPLIED
This package contains:
Meter
4pcs AA batteries
Operation manual
Mini USB cable and software CD
Soft carrying case
1
FEATURES
Big LCD display with blue backlight
to use in dark area
One touch to display CO2 /Dew point
temperature/Wet bulb temperature/
Air temperature/Humidity in turns.
Designed with NDIR (non-dispersive
infrared) Waveguide technology CO2
sensor
Programmable warning CO2 level
Long time drift compensation on CO2
sensor
Audible alarm (~80db)threshold setting
Max ,Min, average functions included
Mini USB output every 2 seconds to pc
for analysis
99 points manually recording
30000 points automatic recording
Review 99 points manual record
Hold function freezes current readings
Housing design surrounds with rails to
help air ventilation for quick & accurate
response
Easy to manually calibrate at fresh air
around 380-420ppm
2
POWER SUPPLY
The meter is powered by either 4 AA
batteries or a DC adaptor(5V/1A output).
Install the batteries into the battery
compartment on the bottom and make
sure they are in correct polarity and good
contact.
cut off the power supply from batteries.
The adaptor can’t be used as a battery
charger.
When battery voltage gets low,
appear on the LCD .
The CO sensor can’t work normally
under low voltage, please replace with
fresh b ies or connect with an
adaptor.
When an adaptor is used, it will
will
(Fig.1)
2
atter
CO2
AM
Fig.1
3
LCD DISPLAY
AVG
DP
CAL
WBT
OO
CC
OO
CO2
HOLD
MAX
TEMP
MIN
FF
%rh%rh
AM
PM
Symbols
Upper LCD
Lower LCD Real time display
CO2 Carbon dioxide reading
HOLD Readings are freezed unchanged
MIN/MAX Minimum/Maximun readings
AVG Average reading
Low battery indicator
DP Dew point
TEMP Air temperature
WBT Wet bulb
%rh Unit of relative humidity
o
C/ F Celsius/Fahrenheit of temp.
CAL In calibration status
REC In manual/automatic logging
RECALL In manual records recall mode
ON/OF F
SET
START
ESC
MODE
RECA LL
CO2/Temp/RH....reading
temperature
o
KEYPAD
Turns on and off the meter.
Enters setup mode while meter is off.
Turn on with to become non-sleep
mode
Exits setup/recall page.
Start automatic logging.
Press to switch displayed mode.
Long press to enter memory recall mode.
HOLD
4
REC
Recall
temperature
HOLD
Freezes the current readings.
Selects unit or increases value in setup.
Cancels data hold function.
MEM
Press to manually record the reading.
Selects unit or decreases value in setup.
MIN
Activates MIN,MAX,AVG function.
MAX/AV G
Saves and finishes settings.
OPERATION
POWER ON/OFF
ON/OF F
Press to turn the meter on and off.
SET
At power up, it emits a short beep and
performs 30 seconds countdown(Fig.2)
for meter warm up, then enters normal
mode with current CO and real time
displayed (Fig.3). The real time display
date and time in turns.
Fig.2
Suggest to wait for 30 seconds warm up
time. For quick start, you may press
MIN
MAX/AV G
for 2 seconds to end the warm up
and entering normal display.
TAKING MEASUREMENT
The meter starts measurement when
power on and update readings every
second. In the condition of operating
environment change (ex. from high to
low temp.), it takes 30 sec to respond
for CO sensor and 30 minutes for RH.
2
NOTE: Do not hold the meter close to
faces in case exhalation affects CO
levels.
2
CO2
AM
Fig.3
2
5
CO2 (Carbon Dioxide)
MODE
Press to switch the mode to CO2.
RECA LL
User can get the CO2 reading in ppm
unit on main display.(Fig.4). The lower
display shows the real time clock.
CO2
TEMP
OO
CC
AM
Fig.4
AIR,DP,WBT
MODE
RECA LL
Press to switch to temperatures
AM
Fig.5
display(Fig.5,6,7).The lower display
shows the real time clock.
Fig.7
WBT
OO
CC
DP
OO
CC
AM
Fig.6
Humidity
MODE
RECA LL
Press to switch to humidity display.
AM
(Fig.8).The lower display shows the real
time clock.
Fig.8
%rh%rh
6
DATA HOLD
In normal display mode, press to
HOLD
freeze the readings, "HOLD” icon is
flashed on the left top of LCD(Fig.9). All
current readings are kept unchanged.
HOLD
Press again to cancel the hold
function.
HOLD
%rh%rh
Fig.9
NOTE:
THE HOLD FUNCTION IS DISABLE IN MIN/MAX/
AVG MODE.
BACKLIGHT
The backlight will be activated for 10
seconds by pressing any key.
MIN,MAX,AVG,CURRENT REVIEW
This meter allows you to check the
minimun, maximun, average, current
value from the moment you press the
MIN
MAX/AV G
key. Under normal mode, press
MIN
MAX/AV G
to see the minimum, maximum, average
and current value in turns. Each press
MIN
MAX/AV G
of ,it displays MIN, MAX, AVG,
current value in sequence. (Fig.10~12).
To return to normal mode, press
key to escape(Fig.13)
CO2
MAX
CO2
AVG
START
ESC
CO2
Fig.10 Fig.11
CO2
Fig.12
AM
Fig.13
7
In this max/min/avg/current modes, it
shows the corresponding readings on
main display and the accumulated time
of how long you are in this mode.(Fig10
~12). The maximum time interval for this
function is 18 hours.
MODE
In this mode, press to switch the
RECA LL
displayed parameters. Fig 14.
The dispalyed sequence in this mode is
min max avg current min max.....
START
Press key can immediately leave
ESC
this mode and return to normal display.
Distinguishing the normal display and
current review by checking the time
display format. In normal display, the
date & time displayed in turns. In current
review, the display is the accumulated
time of how long you are in max/min
mode.
MAX
%rh% rh
Fig.14
NOTE:
“HOLD” & “MANUALLY RECORD” & “RECALL”
FUNCTION ARE DISABLE IN MIN/MAX/AVG MODE.
MANUALLY RECORDING
The meter features 99 point memories.
In normal or hold mode, Press key
to record, icon and main display
REC
MEM
flash for about 3 seconds. The main
display shows the memory serial number
, at most 99 points.(Fig. 15)
Each memory contains all parameters
(CO2,TA,%rh,DP,WBT), not only the
8
parameter you choose to see on main
display.
Fig.15
AM
If the reading changes quickly, you can
HOLD
press to freeze the reading before
REC
manually recording the data.
The manually recording function is
disabled in min/max mode.
99 MEMORIES RECALL
The meter features 99 point memories
review function.
In normal or hold mode, press key
for more than 2 seconds until the
MODE
RECA LL
Recall
icon flashes.
MEM
HOLD
Press or to scroll the memories.
The memory serial number displays on
main LCD fist and reading comes after.
(Fig.16&17)
CO2
Recall
MODE
RECA LL
Recall
Fig.16
Press key to switch the display
Fig.17
parameter.(Fig.18)
The time displayed
in memory recall
mode is the recording
%rh%rh
time of this memory.
Recall
Fig.18
9
To escape the memory recall mode,
START
press key to leave and return to
ESC
normal display.
ALARM
The meter features audible alarm to
give warnings when CO2 concentration
exceeds the limit. (See P20 in setup
for setting alarm threshold). It emits
beeps(Abt.80dB)when CO2 level goes
over the set value and stops only when
the readings fall below the set value. It
beeps again when value goes over the
limit.
DATA LOGGING
The meter can automatically record
readings of CO2/TEMP./RH for long
time environment monitoring. The
memory capacity is 10000 points for each
parameter. Users can set up sampling
rate from 1 second to 4hours 59 minutes
and 59 seconds (See SETUP P40).
After sampling rate is selected, press
START
for 2 seconds under normal
ESC
mode to start logging. The icon
flashes to indicate the logging status
and LCD main display shows the real
time CO2 value. Lower displays are the
real time clock.(Fig.19)
CO2
REC
AM
10
REC
Fig.19
To terminate data logging, press
for 2 seconds, icon stops flashing
While press to start the logging
START
ESC
REC
START
ESC
again, the previous logging records are
overwrite.
MODE
Press key to switch to the mode
RECA LL
you want to see. Except the mode switch
function, min/max, manual record, hold
and recall functions are all disabled
during logging.
AUTO POWER OFF
The meter turns off automatically after
20 minutes of inactivity. To override the
function, hold down and for 2
seconds to turn on the meter until “n”
ON/OF F
SET
appears.(Fig.20)
NOTE:
AUTO SLEEP FUNCTION WILL BE
DISABLED DURING CALIBRATION
MODE.
HOLD
Fig.20
Fig.21
SETUP
ON/OF F
When the meter is off, hold down
for more than 1 sec to enter setup mode.
To exit setup, press in P10 ~ P60
START
ESC
and it returns to normal mode. (Fig.21)
11
SET
P10: 99 MEMORIES CLEAR
When entering setup mode, P10 and
“CLr” (Fig.21) are displayed on the LCD.
MIN
MAX/AVG
Press to go into P11 and decide to
clear or keep all the manual records.
The current set will be blinking on LCD
(Fig.22).
Press or to choose NO or YES
and press to confirm.
MAX/AVG
MIN
MEM
HOLD
Fig.22
START
Press to escape and return to P10.
ESC
P20: CO2 ALARM
When entering setup mode, P20 and
“ALAr” (Fig.23) are displayed on LCD.
MIN
MAX/AVG
Press to go into P21 for setting
CO2 alarm threshold. The current set
value will be blinking on LCD(Fig.24).
HOLD
Press to increase the value or
MEM
to decrease. The selectable alarm
limits are 100~9900ppm,each press
tunes 100ppm. When the preferred alarm
value is set, press to save the setting
START
or without saving and return to P20.
ESC
CO2 CO2
MAX/AVG
MIN
Fig.23 Fig.24
12
P30 TEMPERATURE UNIT
When entering setup mode, P30 and
“unit” (Fig.25) are displayed on the LCD.
MIN
MAX/AVG
Press to go into P31 and decide the
temperature unit.
The current set will display on LCD
(Fig.26).
Press or to choose C or F
and press to confirm.
MAX/AVG
MIN
MEM
HOLD
TEMP
o o
TEMP
OO
CC
Fig.25
START
Press to escape and return to P30.
ESC
Fig.26
P40:LOGGING SAMPLING RATE
Go into P40 for setting sampling rate
of data logging(Fig.27). The range is
from 1 second to 4 hours 59 minutes
and 59 seconds.
MIN
MAX/AV G
Press and it goes into setting
with blinking Hour digits on the lower
display. To change the digit, press
to increase and to decrease. Press
MIN
MAX/AV G
to confirm and enter Minute setting
. Press again to confirm and enter
MAX/AV G
MEM
MIN
Second setting (Fig.28). Press
to confirm the rate setting or
without saving and return to P40.
Fig.27
START
ESC
MIN
MAX/AV G
Fig.28
HOLD
13
P50 PRESSURE COMPENSATION
When entering setup mode, P50 and
“PrES” (Fig.29) are displayed on the LCD.
MIN
MAX/AV G
Press to set pressure compensation
value for CO2 measurement.
The current set will flash on LCD
(Fig.30).The barometric pressure unit
is kpa.
MEM
HOLD
Press or to adjust the pressure
value and press to confirm.
CO2
MIN
MAX/AV G
CO2
Fig.29
START
Press to escape and return to P50.
ESC
Fig.30
P60:REAL TIME CLOCK
Go into P60 for setting the real time
clock of this meter.
MIN
MAX/AV G
Press and it goes into P61 to set
the time format as 12hour or 24 hour.
The current set will flash on LCD. Press
HOLD
or to change the format and
press to confirm and entering real
MIN
MAX/AV G
MEM
time clock setting.(Fig.31)
The blinking Year digits on the lower
display. To change the digit, press
MEM
or to adjust. Press to confirm
MIN
MAX/AV G
HOLD
and enter Month setting. Repeat above
steps to complete the month/date/hour/
minute/second setting.(Fig.32)
PM
Fig.31
Fig.32
14
CO CALIBRATION
2
The meter is calibrated at standard
400ppm CO concentration in factory.
2
It’s suggested to do manual calibration
regularly to maintain good accuracy.
Note:
When the accuracy becomes a concern
after a long time usage, return to dealers
for standard calibration.
CAUTION:
Do not calibrate the meter in the air
with unknown CO concentration.
2
Otherwise, it will be calibrated as
400ppm by default and leads to
inaccurate measurements.
The manual calibration is suggested to
to be done in fresh outdoor air that is
well ventilated and in sunny weather.
Place the meter in the calibration site.
Press , , simultaneously
for 3 seconds to turn on the meter and
START
ESC
MEM
ON/OF F
SET
enter calibration mode (Fig.33). Two
calibration menu is available: Humidity
/CO2.
HOLD
Press key to select the CO2
calibration. 400ppm and “ “ icon
are blinking on the LCD. Press
CAL
MIN
MAX/AV G
to start calibration. (Fig.34)
Wait about 10 minutes until the blinking
stops and the calibration is completed
automatically. To abort the calibration,
turn off the meter at any time.
NOTE:
Ensure the batteries are with full voltage
during the calibration to prevent from
interruption or failed calibration.
15
CAL
CO2
%rh%rh
CAL
Fig.33
Fig.34
RH CALIBRATION
The meter defaults to be calibrated the
humidity with 33% and 75% salt solution.
The ambient condition is recommended
to be at 25 C and stable humidity(better
to be close to the calibrating value). To
abort calibration, just turn off the meter.
CAUTION:
Do not calibrate the humidity without
the default calibration salt. Otherwise,
it will cause permanent damage.
Contact the dealer for calibration salt
or services.
33% calibration
Plug the sensor probe into 33% salt
bottle.
neously for 3 seconds to turn on the
meter and enter calibration mode (Fig.
33.).
bration. ¡§CAL¡¨ and calibrating value
(32.8% if at are blinking on the
LCD.
Meter is now calibrating, and will finish
in about 60 minutes when ¡§CAL¡¨ and
humidity stop blinking.
bration, turn off the meter at any time.
75% calibration
Plug sensor probe into 75% salt bottle
and entering calibration mode. In
calibration mode, press to select
75% calibration(Fig.35), press to
start.
o
MEM
START
Press , , simulta-
ESC
MIN
o
25 C)
MAX/AV G
Hold down to enter 33% cali-
ON/OF F
SET
To abort the cali-
HOLD
MIN
MAX/AV G
16
“CAL” and calibrating value (75.3% if at
o
25 C) are blinking on the LCD.
Meter is now calibrating, and will finish
in about 60 minutes when “CAL” and
humidity stop blinking. To abort the calibration, turn off the meter at any time.
CAL
%rh%rh
Fig.35
TROUBLESHOOTING
? Can’t power on
Press for more than 0.3 seconds
and try again. Check whether batteries
are in good contact and correct polarity,
or the adaptor is well plugged. You may
also remove the batteries for > 10 mins
and then install the batteries again.
? Fixed readings
Check whether data hold function was
activated. (HOLD icon at the left top)
? Slow response
Check whether the air flow channels on
the rear were blocked.
? Error messages
E01/E33: CO sensor is out of order.
Retry CO2 calibration.
E02: The value is under range.
E03: The value is over range.
E04: The original data error results in
this error (DP, WB)
E11: Retry humidity calibration.
E31: Temperature sensor or AD damaged.
E32: Memory IC damaged.
E33: Humidity sensor or circuit damaged.
ON/OF F
SET
2
17
PC CONNECTION
Connect the logger to PC, users can do
logging setting and data transmission
with the included software.
Plug the USB cable into the socket at
the right side of the meter and the other
port to PC. Then install the software in
your PC with the following procedure.
1.Insert the CD Rom and run installation.
Select a preferred directory and click
“Next” step by step and finish it.
2. After the software installation is
completed, it will run USB driver
installation next.
18
Software Operation
AutoConnect
Start the software and it will detect
logger connection automatically and
indicate the COM Port information at
the bottom of the main screen as well
as the COMPort setting column.
Logger Settings
To set up logging plan, click “Setting”
icon and select “Logger”. The setting
page is opened.
Users can set up the logger identifier
number. Click OK for setting and Exit
the screen to confirm the settings.
19
Data Transmission
To transmit auto recorded data from the
meter, click “Download” icon on the left
top side of the main screen. All autorecorded data in the logger will be
transmitted. The raw data with time
stamp will display at the lower part of
the screen and the graph in the middle.
In the Graph display, the Y-axis indicates
Temp, RH,DP, WBT, Co2 level in
different line colors. And the X-axis can
be switched to show Time or Recorded
No. Stamp.
Data Review Function
The following functions help to view
the GRAPH data in more detailed way.
Under View function, there are 4 tools
to enlarge the Graph data for detailed
data review.
Zoom in: Hold down “Ctrl” key on the PC
keyboard and click any target point on the
graph. It enlarges the point in each click.
20
Zoom window: Hold down “Ctrl” key and
drag click the left button of the mouse to
select an area on the Graph and the
selected area will be enlarged .
Zoom Xaxis: Hold down “Ctrl” key and
drag click the left button of the mouse to
select an area on the Graph and the
X-axis of the selected area will be
enlarged.
Zoom Yaxis: Hold down “Ctrl” key and
drag click the left button of the mouse to
select an area on the Graph and the
Y-axis of the selected area will be
enlarged.
Three icons on the right top side of the
main screen:
Redraw: After any review and zooming
on the Graph, click “Redraw” to reset it
to original format.
Clear: Click “Clear” to delete all data
and Graph on the window. A warning
box shows up for confirmation. Press
“Yes” and all data will be cleared.
Cursor: Switch Cursor ON and it shows
the raw data with the cursor. In any click
on the graph, the digital data displayed.
Switch OFF to disable the function.
21
Data Processing
The downloaded data can be Saved or
Printed via “File” processing functions.
Load: To retrieve saved files, just click
“Load” and select a desired file and it
will be loaded in the main screen with
the file details at the left top side.
SPECIFICATION
Measuring range
CO2
Temperature
Relative Humidity
DP(Dew point temp.)
WB(Wet bulb temp.)
Resolution
Accuracy
CO2
ROTRONIC CP11
0~9999 ppm,
(5001~9999 ppm out of scale range)
o o
-20~60 C (-5~140 F)
0.1%~99.9%RH
o
-20.0~59.9 C
o
-5.0~59.9 C
o o
1ppm , 0.1 C/ F, 0.1%RH
+30ppm+5% of reading( 0~5000ppm)
Other ranges are not specified
Temperature
Relative Humidity
CO2 Warm-up time
Response time
CO2
Tair
RH
LCD / Meter size (mm)
Operating condition
(avoid condensation)
Storage condition
Power supply
Battery life
Weight
Standard package
o o
+0.3 C/+0.6 F at 5~40 C
o o
+3%RH (at 25 C, 1 0~90%RH) ; +5%RH ( at 25 C , o ther ran ge )
-20 to 50 °C (CO2 sensor)
-20 to 60 °C (for the rest parameters)
-20~ 60 C,10~90%RH(avoid condensation)
Meter, manual ,AA bat.
30 seconds
<30 seconds(90% step change)
<2 mins (90% step change)
<10 minutes ( 90% step change)
40(H)x45(L), 173(L)x77(W)x42(H)
o
AA x 4pcs or 5V adaptor
> 24 hours (Alkaline battery)
200g
o
22
CO2 LEVELS AND GUIDELINES
Non-Enforced Reference levels
NIOSH recommendations
250-350 ppm: normal outdoor ambient
concentrations
600 ppm: minimal air quality complaints
600-1000 ppm: less clearly interpreted
1000 ppm: indicates inadequate ventilation;
complaints such as headaches,
fatigue, and eye/throat irritation
will be more widespread. 1000
ppm should be used as an upper
limit for indoor levels.
EPA Taiwan: 600ppm and 1000ppm
Type 1 indoor areas such as department
stores, theaters, restaurants, libraries,
the acceptable CO2 concentration of 8
hours avarge is 1000ppm.
Type 2 indoor areas with special requirements
of good air quality such as schools,
hospitals, day care centers, the
suggested CO2 level is 600ppm.
Regulatory exposure limit
ASHRAE Standard 62-1989: 1000ppm
CO2 concentration in occupied building should
not exceed 1000ppm.
Building bulletin 101 (BB101):
UK standards for schools say that CO2 at
averaged over the whole day(i.e. 9am to 3.30
pm) should not exceed 1500ppm.
OSHA: 5000ppm
Time weighted average over five 8-hour work
days should not exceed 5000ppm.
Germany, Japan, Australia, UK...: 5000ppm
8 hours weighted average in occupational
exposure limit is 5000ppm.
1500ppm
23
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