Wöhler FA 430 - Operating the Fan Anemometer; Powering On;Off

Operating the fan anemometer
42
Lower part of display
Displays temperature, volume flow, wet-bulb tem-
perature and dew point
The abbreviations and symbols have the following meaning:
HOLD
Freeze the current display
MAX MIN
Highest and lowest values
AVG
Averaging
Low battery warning
m/s; fpm
Flow velocity display units
ppm
CO
2
display unit
RH
Relative humidity
°C and °F
Temperature display units
m
3
/h, CFM
Volume flow display units
WBT
Wet-bulb temperature
DP
Dew point temperature
Inch
2
; cm
2
Area display units
Funnel symbol
5 Operating the fan anemometer
5.1 Powering on/off.
Fig. 4: Fully display
 To power on the fan anemometer, briefly
press the On/Off key.
All possible symbols and units are displayed for
about 1 second.
The Wöhler FA 410 switches immediately to the
normal Measuring mode.
The Wöhler FA 430 switches to the normal Meas-
uring mode after a warm-up time of approx. 30
seconds.
 To power off the fan anemometer in any
mode, briefly press the On/Off key.
Auto-Off function
The fan anemometer automatically powers off if
no keys are operated for 20 minutes.