A&D GF-30K Instruction Manual page 79

(B) Entering the weight of a sample in liquid
1 Confirm that nothing is placed on the lower pan (in liquid).
Press the
2 Place a sample on the lower pan (in liquid). When the
value displayed on the balance becomes stable, press
the
PRINT
and the balance will return to the density mode (Go to
"Step 2 Selecting a parameter to set").
3 Remove the sample from the lower pan.
Note If an unstable value, a negative value or
is displayed, the
The
SAMPLE
minimum weighing value.
(C) Entering the density of a liquid
Two ways to set the density of a liquid are available in the function table, "Liquid
density input (
directly.
Entering the water temperature (
The water temperature currently set (unit:°C, factory setting :
25°C) is displayed.
Use the following keys to change the value.
RE-ZERO
key ....... To decrease the temperature by one degree. (99°C is displayed after 0°C)
MODE
key ........To store the change, display
PRINT
key ........... To cancel the change and return to the density mode.
CAL
The relation between the water temperature and density is shown below.
°C +0 +1
0 0.99984 0.99990 0.99994 0.99996 0.99997 0.99996 0.99994 0.99990 0.99985 0.99978
10 0.99970 0.99961 0.99949 0.99938 0.99924 0.99910 0.99894 0.99877 0.99860 0.99841
20 0.99820 0.99799 0.99777 0.99754 0.99730 0.99704 0.99678 0.99651 0.99623 0.99594
30 0.99565 0.99534 0.99503 0.99470 0.99437 0.99403 0.99368 0.99333 0.99297 0.99259
40 0.99222 0.99183 0.99144 0.99104 0.99063 0.99021 0.98979 0.98936 0.98893 0.98849
50 0.98804 0.98758 0.98712 0.98665 0.98618 0.98570 0.98521 0.98471 0.98422 0.98371
60 0.98320 0.98268 0.98216 0.98163 0.98110 0.98055 0.98001 0.97946 0.97890 0.97834
70 0.97777 0.97720 0.97662 0.97603 0.97544 0.97485 0.97425 0.97364 0.97303 0.97242
80 0.97180 0.97117 0.97054 0.96991 0.96927 0.96862 0.96797 0.96731 0.96665 0.96600
90 0.96532 0.96465 0.96397 0.96328 0.96259 0.96190 0.96120 0.96050 0.95979 0.95906
key to set the display to zero.
RE-ZERO
key. The sample weight in liquid is confirmed
key is disabled.
PRINT
key can not be used to change the
): by entering the water temperature or by entering the density
ldin
key ... To increase the temperature by one degree. (0°C is displayed after 99°C)
(Go to "Step 2 Selecting a parameter to set")
(Go to "Step 2 Selecting a parameter to set")
+2 +3
( )
e error
New parameter
)
ldin 0
and return to the density mode.
end
+4 +5 +6
77
Press
Place sample
Press
+7 +8 +9