TechGrow HS-1 Modo De Empleo página 8

POWER SUPPLY
The HS-1 Portable CO2 meter is powered by 4
x AA batteries. Install the batteries into the bat-
tery compartment on the back side and make
sure that the batteries make contact correctly.
When the battery voltage is low, "LOB" will ap-
pear on the LCD display and the HS-1 will beep
to indicate that CO2 measurements have failed.
Therefore, measurements will not be displayed.
Press any key (except "SET") to stop the beep-
ing. Replace batteries.
LCD DISPLAY
SYMBOLS:
- HOLD Shows the last CO2 value and tem-
perature
- MIN/MAX Minimum/Maximum measurements
- LOB Low battery indicator
- AIR Temperature °E (C/F) Celsius/Fahrenheit
KEYPAD:
- SET: On/Off button, enters set up menu.
- CAL/Esc: Exit set up menu.
- CAL/Esc and MODE: Enters CO2 calibration
by pushing these buttons simultaneously.
- HOLD: Freezes current measurement,
switches HOLD function on/off .
- MODE: Activates backlight, selects unit or
increases or decreases value in setup.
- DP/WBT: Selects Air-, DP-, WBT temperature
display.
- Mnx/AV: Activates MIN/MAX function. Saves
and resets MIN/MAX settings. Also shows
MIN/MAX values.
OPERATION:
Power ON/OFF
Press "SET" to activate or deactivate the HS-
1. When the meter is activated you will hear a
short beep. Then the meter runs a 30 second
countdown to warm up. After warm up, the
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normal mode with the current CO2 value and
temperature will appear on the display.
MEASURING CO
The HS-1 will start measuring after countdown
and takes a measurement every second.
NOTE: Keep suffi cient distance between faces
and the meter because exhaled breath aff ects
the CO2 value. The HS-1 measurements are
very accurately between 0-2500ppm. From
2500ppm and up, the measurements of the
CO2 sensor will be less accurate.
DATA HOLD:
Press "HOLD" to read the measurements. The
"HOLD" icon will appear on the left top on the
LCD display. All displayed measurements will
maintain unchanged. Press "HOLD" again to
deactivate this function. .
BACKLIGHT
Press "MODE" for longer than 2 seconds to acti-
vate/deactivate the backlight function.
ALARM
The HS-1 also features an audible alarm that
gives warnings when the CO2 value exceeds
the maximum (see P1.0 for Alarm setup). The
HS-1 will beep (80 db) when the CO2 value ex-
ceeds the set-value and can be switched off by
pressing a random key, except "SET". Restart
the HS-1 if the beeping does not stop.
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