SPM-32A ... SPM-36A 3.3 Switching on the instrument
3-11
When operated from dry or rechargeable batteries, the
instrument switches off automatically after 15 minutes if no
key is pressed to save power. This function can be disabled
by pressing:
The instrument will now remain on permanently. The
message “PERM.ON” is marked at the top left of the
display. Permanent on mode also operates when the
instrument is powered from the AC line; in this case,
“PERM.ON” is not marked.
If fitted, the NiMH batteries are recharged in the instrument
by repeating the key sequence [*] and [ON/OFF]
(see page 3-7).
If these keys are pressed yet again, this disables both charg-
ing mode and “PERM.ON” mode.
The function is also cleared by switching the instrument off
and then on again.
If the power supply to the instrument is interrupted whilst it is
switched on, the following messages are displayed briefly
during the test phase:
Default setting
and
SETUPS cleared
*
ON/OFF
PERM.ON
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