GE Monitor UPC-900 Operating Instructions Manual page 61

Step
4
5
6
7
8
9
10
11
Monitor UPC-900 Operating Instructions 29-0567-16 AB
Action
Select menu Calibrate pH. Current calibration values
are displayed buffer 1–buffer 2.
Buffer 1=fixed lower calibrated pH value.
Range=0.00–14.00
Buffer 2=fixed higher calibrated pH value.
AU Cond%Tc pH
Range=0.00–14.00
Note:
Lamp
The pH values for buffer 1 and 2 must differ by at least
(on)
1 pH unit.
Autozero UV
Press OK to access the settings menu. The order of
calibration, buffer 1 or buffer 2, is optional. Press OK to
Eventmark
start with buffer 1, or turn the dial to start with buffer
2. In this example, we start with buffer 1.
pH 12.50
This text disappears when the reading is stable and the
AU Cond%Tc pH
following text is then shown.
Set Parameters
Lamp
(on)
Check
Adjust the pH value in the display using the dial so that
Autozero UV
AU Cond%Tc pH
it corresponds to the known pH value of the first buffer
solution and press OK.
Setup
Eventmark Lamp
(on)
Turn the dial clockwise to access the buffer 2 calibrating
Alarm/Timer 00:22:24
pH 12.50
Autozero UV
AU Cond%Tc pH
menu. Rinse the electrode tip with distilled water and
then immerse the electrode in the second buffer solu-
tion (e.g., pH 4.0 or 9.0) and press OK.
Eventmark
Lamp
Set Parameters
Set Cond Zero Level
(on)
This text disappears when the reading is stable and the
pH 12.50
Autozero UV
AU Cond%Tc pH
following text is then shown.
Set Cond Analog. Out
Check
Eventmark
Lamp
Set Parameters
Set Cond Full Scale
(on)
Setup
Adjust the pH value in the display using the dial so that
pH 12.50
Autozero UV
AU Cond%Tc pH
it corresponds to the known pH value of the second
Check
Alarm/Timer 00:22:24
Set ph Analog. Out
buffer solution and press OK.
Eventmark Lamp
Set Parameters
When the two point calibration is performed success-
(on)
Setup
fully, the following text is shown for one second. Set ph Full Scale
Set Cond Zero Level
pH 12.50
Autozero UV
Check
Alarm/Timer 00:22:24
Set Cond Analog. Out
Set ph Zero Level
Eventmark
Set Parameters
Setup
AU Cond%Tc pH
Set Cond Zero Level
Set Cond Full Scale
pH 12.50
Check
Alarm/Timer 00:22:24
Lamp
Set Cond Analog. Out
(on)
Set Parameters
Set ph Analog. Out
Setup
Parameter
Main menu 1
Current value
Main menu 2
Main menu 1
Main menu 2
Main menu 1
Parameter
Main menu 2
Current value
Main menu 1
Parameter
Main menu 2
Current value
Main menu 1
Parameter
Main menu 2
Current value
22.4
Parameter
Current value
Main menu 1
Parameter
Main menu 2
Current value
22.4
Parameter
22.4
Current value
22.4
22.4
22.4
Setup Cond ref temp
ESC
5 Operation
5.6 Calibrate the pH electrode
ESC
Display
Calibr pH Buffer 1
ESC
Setup Cond ref temp
ESC
Setup Cond ref temp
ESC
Calibr pH Buffer 1
Setup Cond ref temp
Calibr pH Buffer 1
Setup Cond ref temp
ESC
Calibr pH Buffer 2
Setup Cond ref temp
Calibr pH Buffer 2
Setup Cond ref temp
Calibr pH Buffer 2 Set UV Analog. Out
Set UV Range
Set UV Zero Level
Calibrate pH
(7.00–12.00)
Calibration OK
Set UV Analog. Out
Calibr pH Buffer 2
Set UV Range
Calibration OK
Set UV Analog. Out
Set UV Zero Level
Calibrated Electrode
ESC
ESC
ESC
ESC
ESC
ESC
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