IM 12B6C2-E-H
35
7-9. Auto return
ACCESS CODE
: 07 (see §7-2)
DISPLAY
: *RET
Adjustment
: (X)
Automatic return to measu ring when no
keys were pus hed for 10 minutes.
Explanation:
As a safeguard against long maintenance
jobs or inadvertently pushing a button it is
possible to let the system return to its nor-
mal function of measurement when no keys
are pushed for 10 minutes. When you have
activated Hold and entered a routine the
system will return to measurement after 2x
10 minutes.
Default
: 1 = ON
7-10. Buffer tables
ACCESSCODE
: 08, 09, 10 (see §7-2)
DISPLAY
: *BUF.ID
The following tables can be changed by the
user.
Explanation:
There are 3 separate buffer tables in memo-
ry. All three tables work in the same way. As
a default all buffer tables are set to the nomi-
nal values of 7.00, 4.00 and 9.00 for all tem-
peratures between 0 and 50°C. The first
thing to do if you want to use your own
buffer tables is to program the values of
these tables. The first thing you will see is
*BUF.ID: buffer identity number. As a default
it is set to the same value as the pH used in
the table. You can change it to indicate a
change you made. After pushing ENT you
will be prompted with the first buffer value at
0°C. By choosing NO you will skip to the
next value.
By choosing YES you can adjust the value
to your wishes. The next value is 5 °C and
then on to 50 °C in 5 ° steps. Examples of
commercially available buffer solutions are
mentioned in the literature.
NOTES:
1. It is not necessary to program every sin-
gle value of the table.
2. By pushing NO, values are skipped; the
system will use interpolation between
values.
3. The two digit number entered as BUF.ID
is shown in the calibration routine after
CAL....
X
0
OFF
1
ON
Servicecode
08
09
10
BUF.ID
07
04
09
0 °C
6.98
4.01
9.46
5 °C
6.95
4.01
9.39
10 °C
6.92
4.00
9.33
15 °C
6.90
4.00
9.27
20 °C
6.88
4.00
9.22
25 °C
6.86
4.01
9.18
30 °C
6.85
4.01
9.14
35 °C
6.84
4.02
9.10
40 °C
6.84
4.03
9.07
45 °C
6.83
4.04
9.04
50 °C
6.83
4.06
9.01
