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Orion Benchtop pH/ISE Meter Instruction Manual
Set Up Self-Test and Check-Out
11
G. Orion 720Aplus and 920Aplus
Check-Out Procedure
1. Perform the self-test.
2. After completing the self-test the meter will be in MEASURE mode.
The legend MEASURE will be displayed.
NOTE:
If this is the first time this procedure has been
performed the reading should be 7.000 ± 0.02.
3. Press
mode
until pH is displayed.
a. Press
2nd channel
until channel 1 is selected.
b. The prompt line on the display should read 25.0˚ C. If not, press
1st set temp
and enter 25.0, then press
yes
.
4.
For 920Aplus only
:
Press
2nd electrode id
. Press
1
for pH and press
yes
.
5. Press
1st calibrate
.
a. Press
1
buffer, then press
yes
.
b. Display should read 6.997. If not, enter 6.997 and press
yes
at
the READY CAL AS prompt.
c. Meter should display the slope, 100.0 PCT. If not, enter 100.0
and press
yes
.
d. Meter will return to measure mode. Display should read
6.997 ± 0.02.
6. Press
mode
to display mV. Display should read 0.0 ± 0.2 mV.
If not, enter 0.0 and press
yes.
7. Press
mode
until CONC is displayed.
a.
For 920Aplus only
:
Display should read CON and — . Press
2nd electrode id.
Enter 13,
(Na+)
then press
yes
.
b. Press
calibrate
. Enter
1
standard and press
yes
.
c. Meter should display 1.00. If not, enter 1.00 and press
yes
at the
READY ENTER VALUE prompt.
d. Meter should display the slope as 59.2 mV. If not, enter 59.2 and
press
yes
.
e. Meter will return to measure mode. Display should read
1.00 ± 0.01.
8. Press
mode
to select pH.
a. Press
2nd channel
to select input channel 2.
b. Repeat steps 3 through 7 for input channel 2.
9. After successful completion of steps 1 through 7, the meter is ready for
use with electrodes. Remove shorting caps.
Содержание Orion 410Aplus
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Страница 84: ...80 Orion Benchtop pH ISE Meter Instruction Manual Certificate of Conformity...
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Страница 118: ...Orion Benchtop pH ISE Meter Instruction Manual Overview of Meter Functions 520Aplus 525Aplus 720Aplus and 920Aplus 114...
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