Toshiba – Toshiba LF494 User Manual
Page 51
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TOSHIBA
6 F 8 A 0 7 7 4
To change the excitation frequency:
The excitation frequency can be selected from f>, 12 and 24
H z -
T he characteristics of
the ilÜWmeter change in accordance with the seiected frequency as shown below. 24 J lx
is the défailli setting when shipped from the factory.
Kxcitation frequency
Zero point stability Good
Response time
Fluid noise resistant
12 Hz
24 Hz
i’he following example show's how to change the excitation frequency from 24 ll
2
to 1
2
Hz,
Key operation
Display example
Description
SHT
A3: EX. FREg.
24 Hz
Press [SE'J ] First to start the items selection sequence
and select
A3:
EX* FREQ, from among the
configuration items using [ ► ] and [
a
] keys. Press
[SET] again to display the current excitation frequency
f24 JIz in this example).
►
□
A3: EX. FREQ.
24 Hz
Pressing [ ► ], the cursor appears.
▲
n
A3: EX. FREQ.
12 Hz
Select "T2 Hz'' by pressing [
a
j twice. The
excitation frequency changes as follows:
6
Hz 12 Hz -►24 Hz
—1
SET
□
A3: EX. FREQ.
12 Hz
Pressing [SFTJj the cursor disappears and the changed
display flickers, Press [SET] again to save the value.
SET
□
A3: EX. FREQ.
Pressing [SET], [he syslem returns to the items
selection sequence,
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