Jesco EASYPOOL SMART 02, Operating Manual

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EASYPOOL SMART 0 Operating Manual | 31
Installation and Commissioning
IMPORTANT!
The needle valve is used to adjust the water flow.
The ball valves must be used to stop the water.
NOTICE!
The "insufficient sample water" display responds with
a maximum 1 second delay.
5.5 Fitting and calibrating sensors
The mounting of sensors to the water sampling station depends
on the equipment chosen. The handling of all optionally available
sensors is described. The assembly locations are indicated by
stickers. Use the multi-lingual sticker set for this. The graphic on
the sticker set shows the locations for the adhesive stickers.
3
4 1 0
2
Fig. 5.5.1 Sensor assembly location
a
pH sensor
b
REDOX sensor (depending on model)
c
Free chlorine sensor (depending on model)
d
Temperature sensor (depending on model)
e
Conductivity sensor (depending on model)
pH and REDOX electrodes
pH and REDOX electrodes are filled with an electrolyte and must
always be kept damp. They should therefore only be fitted if the
water sampling station is already filled with water. Make sure the
cap is removed from the electrode prior to installation.
Installation
To install the electrodes the ball valves on the water sampling
station input and output are closed and the electrodes are
screwed into the top of the water sampling station. The O-ring of
the electrode seals the system. It is normally sufficient to screw
them in manually.
NOTICE!
Crystal formation on or in the sensor is not a fault. The
crystals will dissolve again during operation.
The measuring cables with electrode connectors are factory-fit-
ted to the controller and labelled near the electrode connector
with "pH" or "REDOX".
IMPORTANT!
The connector must always be kept dry. Otherwise
the reading could be corrupted.
Calibration
The electrodes must be operated for approx. 1 hour with pool
water prior to calibration. They must be removed for calibration.
To do this the ball valves at the input and output points of the
water sampling station must be closed.
NOTICE!
This will not loosen the cable from the electrode. The
connector allows for a rotary movement between the
electrode and the cable.
Calibration is described in detail in the controller operating man-
ual.
Chlorine measuring cell
The chlorine measuring cell is located directly at the water inlet
at the bottom right of the water sampling station. It is fitted and
connected at the factory. In the chlorine measuring cell valve
balls moved by the water flow ensure continual cleaning of the
electrodes.
Calibration
Before the chlorine measuring cell is calibrated the sample water
should flow for at least 1 hour. A photometer or a measuring
instrument according to the DPD method is required for calibra-
tion.
The chlorine measuring cell can only be calibrated if disinfectant
has already be dosed in the pool circuit. You should therefore run
the disinfection in manual mode until the chlorine measurement
shows a deflection. Then stop manual dosing and calibrate the
chlorine measuring cell.
Calibration is described in detail in the controller operating man-
ual. For zero point calibration the ball valve at the input of the wa-
ter sampling station is closed. Do not adjust the flow adjustment
valve. For DPD reference measurement a water sample is taken
directly from the water sampling station. Flush the ball valve well
with sample water before taking the actual sample.
The chlorine measuring cell calibration should be repeated at the
latest 4 hours later. This will give the electrodes time to adapt to
the operating conditions.
NOTICE!
The efficiency of the chlorine is heavily dependent on
the pH value. Final calibration of the chlorine measur-
ing cell can therefore only take place when the pH
value has stabilised to its target value.