Keyboard and Displays

Entering setpoints

To display the function and its setpoint:

Figure 2-4

(Instrument Function Key)

A

or B

)

 

 

 

 

 

necessary for a few

 

 

 

 

 

instrument functions

then, EITHER

 

 

.

 

 

(

0

through

9

-

ENTER

 

to enter a new setpoint value

 

 

 

OR, for a few functions,

 

 

 

(

ON

or OFF

)

 

 

 

 

to switch the function on or off

 

 

Steps in Entering a Setpoint Value

For example, to set the A detector zone to 250^C, the following sequence of keys is pressed:

DET A TEMP

2

5

0

ENTER

function key

 

numeric key(s)

 

Once detector A temperature is displayed by pressing DET A TEMP , the new setpoint value may be entered at any time thereafter.

Note that the display shows a flashing

* (asterisk) while the new

setpoint is entered, disappearing when

ENTER is pressed.

When ENTER is pressed, the setpoint value is verified and, if satisfactory, becomes the new setpoint for the function. If the entered value is not satisfactory (out of range, or inconsistent with other, related setpoints), an appropriate message is displayed. A different value may be entered immediately, without again pressing the particular function key.

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