6
4a. During Calibration/Setting mode this key will
decrement
the blinking digit of the active parameter.
4b. During pH calibration, instead of SAVING the new pH
Stand or Slope you can press this key to recalibrate the buffer
again.
5. The [
↵
]
ENTER
key.
During Calibration/Setting mode, this key will save the
current modified parameter and move to the next parameter.
6. The [
]
LIGHT
key.
This key will turn on or turn off the backlight of the LCD.
The backlight will automatically turn off if there is no key
activity within two minutes.
7. LCD screen.
B.
MAIN DISPLAY MODE
1
. pH mA OUT
- this will
display the output of the pH 4-
20 mA circuit.
2.
TEMP mA OUT
- this will
display the output of the
Temperature 4-20 mA circuit.
These two current outputs at
power on will show “
OFF
” for
about three seconds before going
to main display mode. After exiting the Calibration /Setting pages a
“
FROZEN
” message will be displayed for about 3 seconds if the
unit is not password locked.
3.
annunciator - This will be displayed if Calibration
/Setting pages are password locked meaning the user
can’t
calibrate or change the settings unless the correct 4 digit
number has been entered, but user still can view all the settings.
