reedinstruments
www
com
5
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black
Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
INSTRUMENTS
TWA
Time weighted average
STEL
Short-term exposure limit
HOLD
Readings are held on the LCD
MIN/MAX
Minimum/Maximum readings
Low battery indicator
DP
Dew point temperature
AIR
Air temperature
WBT
Wet bulb temperature
%
Unit of relative humidity
°E (C or F)
Celsius/Fahrenheit
Operating Instructions
1. Press the “POWER” button to turn the meter on and off. When
powering on, the meter will beep and commence a 30 second
warm-up. The meter will then enter the normal-measuring mode,
displaying the current CO
2
, temperature, and humidity readings.
Readings will be updated every second. Note: When the meter
experiences extreme environment changes (ex. from high to low
temp.), it will take 30 sec for the CO
2
sensor to respond and 30
minutes for the RH sensor.
2. Press the “DP/WBT” button to switch the temperature display from
air temperature, dew point, and wet bulb.
Data Hold
To hold the readings that are currently being displayed on the LCD, press
the “HOLD” button. The “HOLD” symbol on the LCD will indicate the
function is activated.
Backlight
Hold down the “BACKLIGHT” button for a second to activate and to
cancel the backlight function.
www.
.com
1.800.561.8187