TechGrow HS-2 Manual De Instrucciones página 9

ALARM
The HS-2 also features an audible alarm that
gives warnings when the CO2 value exceeds
the maximum (see P1.0 for Alarm setup). The
HS-2 will beep (80 db) when the CO2 value
exceeds the set-value and can be switched
off by pressing a random key, except "SET".
Restart the meter if the beeping does not stop.
AUTO POWER OFF
The HS-2 will be deactivated automatically
after 20 minutes of no activity. To disable
this function, press "SET" and "HOLD"
simultaneously for 2 seconds to reactivate the
HS-2, until "n" appears on the display. NOTE:
the Auto sleep function will be stopped during
the calibration mode.
SET UP
Press "SET" in normal mode for more than 1
second to access the setup mode. To exit the
setup mode, press "CAL/Esc" in P1.0 or P3.0
and the HS-2 will return to normal mode.
P1.0 CO2 ALARM
In the setup mode, "P1.0" and "AL" are shown
on the LCD display.
Press "Mnx /AV" to enter "P1.1" and to set the
CO2 alarm. The current set-value appears
blinking on the LCD display. Press "MODE"
to increase the value or press DP/WBT to
decrease value. With every push on these
buttons, the alarm will be increased/decreased
with 100 ppm from 100 to 9900 ppm. When
the desired alarm value is set, press "Mnx /AV"
to save or press "CAL/Esc" to return to "P1.0"
saving all settings.
4
HS-2
user manual
P3.0 TEMPERATURE SCALE ( °C
OR °F )
Press "MODE" or "DP/WBT" in "P1.0" to enter
"P3.0" to adjust the temperature scale. Press
"Mnx/AV" in front of "P3.1" with the blinking
°C bottom left of the LCD display (to switch
between °C or °F, press "MODE" or "DP/WBT").
Next, press "Mnx/AV" to save or press "CAL/
Esc" to return to "P3.0" without saving.
CO2 CALIBRATION
The HS-2 is calibrated at 400ppm CO2 value at
the factory.
Only calibrate the sensor if you suspect a
deviation. Our experience has shown that the
SenseAir® sensors that we use can function for
two years without calibration, easily.
The sensors are calibrated from the factory with
the highest accuracy, but it may occur that after
one year the sensor shows a deviation and has
to be calibrated again
WARNING:
Do NOT calibrate the HS-2 in an area of
which the CO2 value is unknown. Otherwise,
the meter will be calibrated automatically
as 400ppm, which will lead to inaccurate
measurements. It is advised to conduct a
manual calibration in outdoor air when the
weather is sunny.
+Place the HS-2 on the calibration site.
+Activate the HS-2 and press "CAL/Esc" and
"MODE" simultaneously to enter the CO2
calibration menu.
+400ppm and "CAL" are now blinking on the
LCD display while the calibration is busy.