Introduction; Assembly And Installation; Electrical Connection; Start-Up - Velp Scientifica FC4S Manual De Instrucciones

1. Introduction

During chemical-physical treatments of waters aimed to coagulate and precipitate pollutants, chemical coagulants are
evaluated and their dosing optimized by jar tests. In relation to the variable composition of wastewaters the chemical dosing
and the test frequency are to be adapted to local conditions. The jar test equipment manufactured by VELP is characterized
by an electronic speed control with an independent speed settable for each place in order to optimize the result of settling so
to reduce chemical consumption. FC4S and FC6S allow to pre-select 10 different speeds for each stirring point using the
relative selectors located on the front panel (10-15-30-45-60-90-120-150-200-300). The steel structure epoxy painted is
studied and tested in order to give the instrument an excellent resistance against the attack of chemical agents and
corrosion in general. The stainless steel stirring rods are adjustable in height by a self-blocking chuck. The examined
samples can be lighted by a back led lamp controlled by a switch located on front panel.

2. Assembly and installation

Upon receipt and after having removed the packaging, please check the integrity of the instrument. The box includes:

Flocculator

Plug for power supply

2.1 Electrical connection

Before connecting the instrument to the power supply, make sure that the values on the rating plate correspond to those of
the power supply. Connect the unit to the power supply using the switching.
Ensure that the socket and the relative cut-off device conform to current safety norms and easy to reach.

2.2 Start-up

Rotate the speed knob completely to the left. Place the beakers containing the sample and then, set the speed.

3. Operating controls

It's possible to select the desired stirrer speed by the knob "Stirrer rpm" on the frontal panel. It's possible to choose the
desired values: 10-15-30-60-90-120-150-200-300 rpm by using the information written on the analogical scale around the
knob.
At the end of the work cycle set the stirring speed knob on "0" rpm and turn off the light switch. If the instrument is not used
for a long period it's better to disconnect the external power supply from the plug.

4. Maintenance

No routine or extraordinary maintenance is necessary apart from periodically cleaning of the unit as described in this
manual. In compliance with the product guarantee law, repairs to our units must be carried out in our factory, unless
previously agreed otherwise with local distributors. The instrument must be transported in its original packaging and any
indications present on the original packaging must be followed (e.g. palletized).

4.1 Cleaning

Disconnect the unit from the power supply and use a cloth dampened with an non-inflammable non-aggressive detergent.

5. Technical data

Power supply
Power
Dimensions (WxHxD)
Weight (with plug)
Speed range
Construction material
Environmental ambient temperature
Storage temperature range
Max humidity
Pollution degree

6. Accessories / Spare parts

A00001000 Plastic beaker 1000 ml
A00001002 Transparent plastic imhoff cone
A00001004 Stand for two imhoff cones
40000248 Knob 30D blue

Switching VELP 100-240V/12V without plug

Instruction manual
100-240 V / 50-60 Hz
18 W (FC4S) 23 W (FC6S)
655x404x296 mm (FC4S)
12.5 Kg (FC4S)
10-15-30-45-60-90-120-150-200-300 rpm
Epoxy painted metal structure
5 - 40 °C (41 - 104°F)
-10... + 60 °C (14 - 140°F)
80%
2
A00001001
A00001003
10000235
5
935x404x296 mm (FC6S)
18 Kg (FC6S)
Glass beaker 1000 ml
Glass graduated imhoff cone
Bumpon 20x20x13,2H
EN