Aqua DGTEC CD, Instruction And Maintenance Manual

Page: 21 / 36

ADSP7000634 rev. 1.3 23/09/2020 21/36
4.6 TEMPERATURE ALARM
The Temperature Alarm is activated whenever the temperature mode ( °C ) in the Programming Menu is set to
automatic “
Aut
”, but the PT100 probe is not connected (temperature value reported as
t - - .
The Temperature Alarm is reported in the following way:

Audio signal via the buzzer (if there is one on the pump) and if enabled (see A.bu
on the “Settings Menu”)
with a frequency of 1 second on and 1 second off;

flashing red LED;
 “
n°C
” flashing on the display;
When the alarm is reported, the pump keeps on operating as normal.
You will automatically exit the alarm status as soon as the probe is connected or by changing the temperature
mode to manual.
5.0 MAINTENANCE
This section reports the general rules you need to follow to operate the pump correctly and the steps to carry out
periodically to ensure optimal conditions are maintained over time.
5.1 GENERAL RULES
Maintenance operations must be conducted systematically and accurately by following the recommendations
reported below to the letter.
It is difficult to define the standard times required for maintenance beforehand, as there are a number of factors
that determine the wear of the pump and in particular the parts that are in contact with the liquid.
This also applies to the type of product used to clean the materials that are in contact with it (valves, etc.) as it
depends on the compatibility of the material with the chemical product being dosed.
Having said this, we can take as an example a product, such as sodium hypochlorite, that develops crystals, which
is often used with our pumps, and with which we have a great deal of experience, and trace an identity kit of the
type of maintenance required.
5.2 PERIODIC MAINTENANCE

Check the foot strainer and clean it periodically from any residuals of crystallised product or dirt deposits.

Ensure there are no impurities in the suction and delivery tubes, because they may damage the peristaltic
tube and, at the same time, cause anomalies in the flow rate;

Pump materials in contact with the chemical product such as: foot strainer and injection valve must
be checked and cleaned at least every three months
. If the products are particularly aggressive increase
the frequency of cleaning;

Calibrate the pump periodically;
To remove and place back the peristaltic tube refer to the steps described respectively in 20 and 21