Delta-T Devices AP4 User Manual page 51

GO
The GO key is duplicated, for left and
right-handed people, on both sides of the lid.
The larger button on the porometer head is also a GO key.
It is an action key, causing the execution of the selected or default menu option.
Examples :
During readings, the options on the display will cycle sequentially.
USER
ACTION
-
Press ON
Press GO
Insert leaf
Press GO
Wait
Press GO
Press GO
THIS PERMITS ONE-HANDED OPERATION OF THE POROMETER
At any stage other options can be selected via the >> key
or the previous menu can be selected via the EXIT key
Display Flashing
The display will flash when it is time to recalibrate. This can occur after a long interval
since the last calibration, after a large shift in the cup temperature or if the relative
humidity cycling set point is altered.
You can choose to ignore it if you wish, but the accuracy may suffer.
ACCEPT a menu option
DO a suggested command
START a reading
STORE a reading
The meaning of the GO key is context sensitive.
ACTION
-
Wake up
Select READ loop
Waiting
START reading
Continues
ACCEPTS reading
STORES result
POROMETER
DISPLAY
OFF
MAIN MENU
INSERT LEAF
INSERT LEAF
READING CYCLE
READING CYCLE
STORE READING
INSERT LEAF
Layout and Control
GO GO
Page 51