SHORT INSTRUCTION MANUAL
General description
The is an accurate hand-held datalogger that displays & records relative
humidity, temperature, CO
2
and calculated parameters such as dew point and wet bulb.
These short instructions are limited to a description of the main functions and installa-
tion of the device. The detailed instruction manual can be found on the internet at
www.senseair.se
Programming
Most of the settings, such as memory clear, CO
2
alarm, units( C/ F), sampling rate,
pressure compensation and real time clock can be changed using the function keys.
Built-in CO
2
sensor w/
calibration cap
Battery
compartment
Integrated probe
Tripod hole
Congratulations on your purchase of the new portable humidity, temperature and CO
2
instrument. Please read these short instruction carefully before installing the device.
Press to turn the meter on. At power up,
it emits a short beep and performs a 28 sec.
countdown (Fig.1) for meter warm up, then
enters normal mode with real time clock
displayed (Fig.2). Date and time are
displayed in turns.
POWER ON/OFF
SET
ON/OFF
CO
2
AM
Fig.2
To power off, press again to turn off the
meter.
Operation
Fig.1
SET
ON/OFF
Power Supply
The uses four AA re-chargable batteries as power source. To insert
(replace)the batteries, use the screwdriver enclosed to loose two screws and put in
the batteries
in correct polarity with good contact.
Connection to PC or Laptop
Connect the via mini USB cable to a PC or Laptop. Recorded data can be
easily downloaded with the software enclosed.
Please charge the batteries for eight hours on first time use. To charge the
batteries, power off the meter and plug in the 9VDC adaptor enclosed. Wait until
"End" appears on LCD to indicate the charging process is completed
(approximately eight hours).
TAKING MEASUREMENT
The meter starts measurement when power on and update readings every second.
In the condition of operating environment change, it takes 30 seconds to respond
for C
sensor.
O
2
NOTE:
Do not hold the meter close to faces in case exhalation affects CO
2
%rh
TEMP
O
C
AM
Press to switch to temperatures display (Fig.4,5,6).
The lower display shows the real time clock.
TEMP, DP, WBT
Press to switch the mode to CO
2
. User can get the
CO reading in ppm unit on main display (Fig.7). The
2
lower display shows the real time clock.
CO
2
(CARBON DIOXIDE)
Fig.7
Fig.5
Fig.6
Press to switch to humidity display (Fig.3).The
lower display shows the real time clock.
HUMIDITY
Fig.3
CO
2
AM
Fig.4
O
C
AM
DP
O
C
AM
WBT
MODE
RECALL
DATA HOLD
In normal display mode, press to freeze the
readings, "HOLD” icon is flashed on the left top of LCD
(Fig.8). All current readings are kept unchanged.
Press again to cancel the hold function.
Fig.8
BACKLIGHT
HOLD
NOTE:
The hold function is disabled in MIN/MAX/AVG mode.
START
ESC
Fig.9
Fig.10
Fig.11
Fig.12
%rh
HOLD
CO
2
AM
CO
2
MAX
CO
2
AVG
HOLD
The backlight will be activated for 10 seconds by
pressing any key.
MIN/MAX/AVG REVIEW
This meter allows you to check the minimun, maximum,
average and the current value from the moment you
press the key. Under normal mode, each press of
displays the MIN, the MAX, the AVG and the current
value in sequence (Fig.9~11). To return to normal mode,
press to escape(Fig.12)
In the MIN/MAX/AVG mode, it shows the corresponding
readings on main display and the accumulated time of
this mode. The maximum time interval for this function
is 18h.
Press to switch the displayed parameters (Fig.13).
Distinguish the normal display and current review by
checking the time display format. In normal display, date
& time are displayed in turns. In current review, the lower
display is the
accumulated time
of how long you have
been in MIN/MAX/AVG mode.
MAX/AVG
MIN
NOTE:
“HOLD” & “MANUALLY RECORD” & “RECALL” functions are disabled in
MIN/MAX/AVG mode.
%rh
MAX
CO
2
ALARM
The meter features audible alarm to give warnings when CO
2
concentration exceeds
the limit. (See “Meter Setup” section for setting alarm threshold). It emits beeps
(about 80dB) when CO
2
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.
Fig.13
MODE
RECALL
MODE
RECALL
MODE
RECALL
DATE/TIME SETUP
When meter is powered on , hold down for more than two seconds until entering
meter setup mode. Press or key to select the program P80 (rtc) and press
key to enter.
First, choose the time format as 12hour or 24hour by pressing or and then
press to confirm. Second, choose the date format as Month-Day-Year or Day-
Month-Year by pressing or and then, press key to confirm. Now, start to
input the real time clock value from year, month, day, hour, minute to second. Press
or to select and then press to confirm. Press to return to normal.
SET
ON/OFF
HOLD
MEM
MAX/AVG
MIN
START
ESC
HOLD
MEM
HOLD
MEM
MAX/AVG
MIN
HOLD
MEM
MAX/AVG
MIN
MAX/AVG
MIN
UNIT SETUP
When meter is powered on , hold down for more than two seconds until entering
meter setup mode. Press or key to select the program P50 (unit) and press
key to enter.
Press or to select or and then press to confirm. Press to return
to normal.
SET
ON/OFF
MAX/AVG
MIN
START
ESC
HOLD
MEM
MAX/AVG
MIN
HOLD
MEM
o
C
o
F
MAX/AVG
MIN
Functions Key
ON/OFF/SETUP
-Press to turn on or turn off the instrument
-In normal mode, press longer to enter setup mode.
-Press with HOLD key to disable sleep mode
HOLD/UP
-Freezes the current readings
-Cancels data hold function
-Selects unit or increases value in setup
MODE/RECALL
-Press to switch displayed parameter
-Press longer to enter memory recall
START/ESC
-Start automatic logging mode
-Exits setup/recall/logging
MEM/DOWN
-Press to manually record the reading
-Selects unit or decreases value in setup
MIN/MAX/AVG/ENTER
-Activates MIN,MAX,AVG function
-Saves and finishes settings
Display
Upper LCD
Lower LCD
CO
2
HOLD
MIN/MAX
AVG
DP
TEMP
WBT
%rh
o
o
C/ F
CAL
REC
RECALL
CO
2
%rh
TEMPDPWBT
O
F
O
C
REC
Recall
AM
MAXMIN
HOLD
AVGCAL
PM
Humidity/TEMP/CO
2
....reading
Real time clock display
Carbon dioxide reading
Readings are hold unchanged
Minimum/Maximum readings
Average reading
Low battery indicator
Dew point temperature
Temperature
Wet bulb temperature
Unit of relative humidity
Celsius/Fahrenheit temperature
In calibration status
In manual/automatic logging status
In manual records recall mode
PC connect port
9VDC adaptor port
