GE Protimeter Hygromaster
Page 8
Table 3: Spot Measurements
Button
Function
Display Symbols
Explanation
ON, OFF, Hold
II
(pause)
Switch
ON
- quick press
Switch
OFF
- press and hold for 3 sec
Hold
value - quick press and release,
pause symbol flashes.
Humidity, dew point,
mixing ratio/absolute
humidity, air temp.
%rh
TD
°C
or
°F
ppmw
/
gpp
Primary display scroll.
To change units
see Instrument Set
Up
Surface temperature,
surface - dew point
temperature difference,
time and date, probe
serial number
TA
Ts
Δ
-
T
Secondary display scroll.
Time is shown on upper display as
HH:MM
. Date is shown on lower
display as
MM:DD.
Probe serial
number is scrolled across.
Stores measurement in
the instrument memory
Log
Press and hold for 3 seconds to store
all measurements. Momentarily
displays the
log
record number and
stored data.