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in the instrument memory, so that during the next instrument
turn-on this will be the default unit.
' SET ' key
When this key is kept depressed for at least 3 seconds a mode
is entered in which the user can set the generall parameters for
the instrument operation.
These parameters are three and the user can switch between
one and the following by pressing the 'SET' key.
Once a parameter is selected, its value can be modified with the
following keys:
'FUNC' Key:
Increases the value (if numerical) or switches
between On and Off cyclically (if non-
numerical).
'UNIT' Key:
Decreases the value (if numerical) or
switches between On and Off cyclically (if non
-numerical).
Parameters which can be adjusted are the following:
P1: Acoustic Feedback Enable/Disable
This parameter is identified with the label 'SEt 1'.
Its value enables or disables the internal buzzer for the acoustic
feedback.
Press the 'UNIT' or the 'FUNC' key to change the actual value.
The instrument is factory set with the feedback enabled
(Set 1=On).
P2: Auto-Shut-Off Time.
From parameter 'Set 1' if the key 'SET' is further depressed
once, the user gets access to parameter 'SEt 2' which allows to
change the auto-shut-off time.
The 'UNIT' key decreases the current value, meanwhile the
'FUNC' key increases it.
The allowed values for this parameter are in the range 1 .. 30
minutes in 1 minute steps.
In order to disable this feature (instrument turned on until a
manual turn-off) the user must increase or decrease the
parameter value until the label 'OFF' is set.
P3: Buzzer on Alarm Enable/Disable.
From parameter 'Set 2' if the key 'SET' is further depressed
once, the user gets access to parameter 'SEt 3' which allows to
enable or disable the buzzer sound in case of an alarm.
Press the 'UNIT' or the 'FUNC' key to change the actuall value.
The instrument is factory set with the alarm buzzer enabled (Set
3=On).
From this parameter a further action on the 'SET' key results in
quitting the parameters configuration mode, together with the
storage in the instrument memory of the preferences just set.
OVERRANGE FUNCTION
This function, active any time, continuously checks for the
measured concentration to remain within the instrument full
range limits.
Should the full range value be exceeded, the internal buzzer
will start beeping at the maximum repetition rate and, at the
same time, the 'ALM' symbol will be turned on and the lower
display will show the label 'OFL' (overflow).
LOWBATT FUNCTION
The instrument continuously analyses the battery level and, in
case this is found below a certain value, the low-level battery
icon '
' is shown in the upper right side of the display.
When this symbol is turned-on, the instrument is still perfectly
operational.
After this, when the battery voltage falls below another critical
level, the words 'Lo bAtt' are shown on the display and the
operation of the instrument is stopped: the only action allowed
to the user is the turn-off.
When the instrument is further turned-on, if the supply voltage
is in the valid range, all the functions are enabled again.
For batteries replacement please follow the directions
explained in the paragraph 'Preliminary Operations'.
BUZZER
This instrument features an internal buzzer for both the
purpose
of
an
acoustic
All manuals and user guides at all-guides.com
indication
of
the
measured
concentration and for an acoustic feedback on some user
actions.
When the instrument is detecting a gas concentration higher
than zero, the repetition rate of the 'beeps' increases
according to the concentration level.
SENSOR FAIL
The instrument periodically checks the sensor status. In case
the latter is found defective, the buzzer sound is set to
continuous (when the Buzzer Alarm feature is Enabled) and
the words 'SEnS FAIL' are shown on the display.
WARRANTY
In the view of a constant development of their products, the
manufacturer reserves the right for changing technical data
and features without prior notice.
The consumer is guaranteed against any lack of conformity
according to the European Directive 1999/44/EC as well as to
the manufacturer's document about the warranty policy.
The full text of warranty is available on request from the seller.
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