Low Battery Indication; How To Replace The Battery - Delta HD207 Series Instruction Manual

3. Set the sampling interval.
4. Enter start time and date.
5. Enter stop time and date.
6. Set alarm limits, if desired.
Note: if the stop date is prior to the start one, the instrument continues logging until memory is full.
Then it stops. See the other notes of the paragraph above.

Low Battery Indication

The instrument is provided with a battery charge control. The low battery indication activates to in-
form the user that the battery needs to be replaced as soon as possible: on the models equipped with
display, the battery symbol lights up; on the models without display, the alarm red LED starts flash-
ing. The alarm red LED also indicates that the alarm set-points have been exceeded: to understand
which is the reason of the alarm, just press the BATTERY TEST key to make a battery test. If the
green LED flashes, it means that the battery is charged and that one of the set limits has been ex-
ceeded causing the alarm. On the contrary (red LED flashing), it is necessary to check data with a
computer to find out if an alarm limit has been exceeded.

How to Replace the Battery

The minidatalogger reduced consumption grants the battery that powers the circuit a long life; when
the instrument indicates that the battery is low, it has to be replaced as soon as possible. The mini-
datalogger is powered by a 3.6V type ½AA Lithium battery (Diameter x Length = 14mm x 25mm)
with axial rheophores.
Before replacing battery, finish any running logging operation and switch the instrument off.
In order to avoid losing the configuration data, the battery has to be replaced within a minute.
Battery replacement has to be carried out when instrument is switched off.
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