Vaisala HMT330 - Manual (Page 69)

Chapter 4 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 67
CHAPTER 4
OPERATION
This chapter contains information that is needed to operate this product.
Getting Started
Within a few seconds after power-up the LED on the cover of the
transmitter is lit continuously indicating normal operation. If the data
logger module is installed, the startup may take up to 18 seconds.
When using the optional display and turning the transmitter on the first
time, the language selection menu window opens. Select the language
with ▼▲ arrow buttons and press the SELECT button (the left-hand
button).
Pressure has an effect on humidity calculations and accuracy. Therefore,
accurate calculations can be achieved only when the ambient pressure is
taken into consideration. For instructions on how to set the pressure, see
section Pressure Compensation Setting on page 104.
Display/Keypad (Optional)
Basic Display
Display shows you the measurement values of the selected quantities in
the selected units. You can select 1 ... 4 quantities for the numerical basic
display (see section Changing Quantities and Units on page 100.)
1= INFO shortcut button; see
section Device Information on
page 108
2 = GRAPH shortcut button;
see section Graphic History
on page 68
3 = Quantities selected for display
0705-209
Figure 43 Basic Display