Epson XDT ユーザーズマニュアル

XDT User’s Manual

16

1. To display characters with the 7 segment numeric display, the following pseudo-alphanumer-

ics are used:

Numbers: 
0   12 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9

Letters:
ABCDEF GH IJ LNOP QRS TUXYZ
A B C D E F G H   I J L N O P Q R S T U X Y Z

Symbols:
?

?

- .

2. The instrument will indicate whether a particular mode allows changing a parameter by show-

ing the word “SET” in the upper left corner of the display. Be careful not to change any 
parameter inadvertently.

3. °C°F appear simultaneously, to indicate the sensors’ attenuation in decibels.

4. Values larger than ±1999 or smaller than ±0.01 are displayed in powers of 10

±3

. As required, 

either a “10

 3

” or “10

-3

” will appear above and to the right of the displayed value, the value 

will be rounded off to 3½ digits. The display will show RNG (out of ranGe), if the number to 
be displayed is larger than 1,999,000. Twelve examples follow; for each the number and units 
desired to be displayed are shown in italics, depicted immediately below them is the resultant 
3½ digit LCD display:

Four push buttons provide user control of the instrument. They are designated MODE, UP, 
DOWN and PRESSURE CORRECT. These push buttons are vertically lined up on the upper left 
side of the bare circuit board, with the MODE button on top. There is also a connector provided 
which allows the use of external switches. The XDT-NEMA makes use of the circuit board 
mounted push-button switches, to access them one must open the cover of the XDT-NEMA 
enclosure. The XDT-PM is available in several versions:
•

With a solid silk screened front face plate, which must be removed to access the circuit board 

°

C

DEWPOINT 

    

°

F

DEWPOINT 

x10

 3

PPM

DEWPOINT

LBS

DEWPOINT 

DEWPOINT        G/M

3

°

°

°

°

°

C

DEWPOINT

   

°

F

DEWPOINT 

x10

-3

PPM

DEWPOINT 

x10

-3

LBS

DEWPOINT 

x10

-3

DEWPOINT        G/M

3