Overall Dimensions - Aprimatic MWZ220 Manual Del Usuario

SELF-ADJUSTING METALLIC MASS DETECTOR WITH AN INDUCTIVE COIL
REMARKS
- Before commencing with the installation of this appliance make sure
that you have read the following instructions carefully.
In particular familiarise yourself with the safety devices required by the
system, only then will you be able to use them to great effect.
- These instructions are aimed at professionally qualified "installers of
electrical equipment" and must respect the local standards and regula-
tions in force .
Description
This device is suitable for detecting the presence of metallic masses in
a magnetic field generated by a special external circuit (sensitive
element) connected to it.
The system is made up of three parts:
1) An MWZ detection device contained in a special protective case
made of extruded aluminium with shockproof piastic and pieces.
2) Socket for fitting on panelling or rails
3) A sensitive element (not supplied by us) that should be rnade up of a
multipolar cable with one or more wires and must respect the measure-
ments as specified in the drawings.
4) A bipolar cable (not supplied by us) with which to connect the sensi-
tive element to the detecting device.
Use
The MWZ DETECTOR is best used in the following fields:
- The automatic opening of gates and doors where there is intense traf-
fic (for blocks of flats, office buildings and industry etc.).
- The control of vehicles in pay car parks.
- Near automatic traffic light installations.
- Detection, in predetermined places, of the presence of metallic masses
in general.
Note:The use and installation of these appliances must rigorously re-
spect the indications supplied by the manufacturer and the safety stand-
ards and regulations in force.
Versions
MWZ220 .................................................... 220/230 Vac
MWZ024 ............................................................. 24
Vac/de
Making the sensitive element
(fig.2)
The sensitive element shall be made by taking into consideration the
system's requirements, the fundamental part of which is a multipolar
cable, made up of at least two wires (Ø1-1,5 mm). The wires that make
up the cable have to be connected in series. It is important that the sum
of their lengths does not exceed 40 m and is not less than 20 m.
N.B.: It is advisable to use a rectangular form when realizing the
sensitive element, the shorter side of which should measure 500 mm
and the length will depend on the system's requirernents.
Installation (fig.3-4-5)
- Dig a rectangular shaped excavation in the area which is to be
controlled by the sensitive element.
N. B.: The excavation must not be deeper than 100 mm.
- If necessary protect the sensitive element with a special plastic sheath
which is suitable for laying underground.
- Place the sensitive element into the excavation making sure that it lies
correctly and that there are no sharp edges or protuberances that could
damage it.
- Connect the two ends of the coil to the appropriate binding posts
(LINK) using a bipolar cable no longer than 5 m.
The connection should be as short as possible in order to optimize the
operation of the system.
- Lay the coi] underground and embed it in cement to ensure a stable
position and to prevent it from rnoving after setting.
Adjust the sensor setting and place it in the required position.
Adjusting tbc DETECTOR
The adjustment of the detector must be carried out after having con-
nected the coil endings to the binding posts (LINK), and with no
metallic masses in the vicinity as follows:
- Activate the sensor;
- Choose the frequency medium, high, low
- Press the RESET button
- The device will initiate the self-adjusting phase
- The leds L1 L2 L3 L4 will light up sequencially.
- The device will stabilise at the best setting and the leds L3 and L4
will light up.
Power supply
Led functions L1 L2 L3 L4
L1 which is normally off; indicates the following anomalies when lit:
a) coil not connected
b) eccessive number of coils
e) eccessive coil length
N.B.: To make the coil consult the drawings shown in fig.2.
L2 which is normally off; indicates an insufficient coil when lit (control
the length of the coil).
L3 which is norrnally lit indicates that the power is on.
L4 which is normally lit; switches off when the device detects a metallic
mass.
N.B.:If the power is turned off and then turned on again the device will
automatically carry out a setting cycle
Selecting the sensitivity level.
The sensitivity level is determined by the position of the four dip
switches.
a) all in the ON position = minimal sensitivity
b) all in the OFF position = maximum sensitivity
N.B.: To set intermediate sensitivity levels the dips have different values,
the highest being for dip 1 and the lowest for dip 4 with dips 2 and 3
gradually diminishing the level.
N.B.: After each sensitivity adjustment the device must be reset
Terminal board connections (fig.6)
1-2 Power supply (see the indications on the terminal board)
3-4 Impulsive output, relay contact common/N.O. The metallic mass
will be monitored for a 1 second time period after which the relay
will reset and wait for the next positive reading.
5-6-10 Continuous output, relay contact N.O./common/N.C. The metal-
lic mass will be rnonitored for the entire time in which it effects
the coil.
7-8 lnductive coil bipolar cable in input (LINK).
N.B.: When constructing the inductive coil a single cable with more than
one pole 3x1, 4x1, 5xl must be used, unused poles should be isolated and
disconnected. The serial connection point could be isolated using paraffin.
The cable inlaid into the ground must not move when subject to passing
vehicles.
Technical specifications
Power supply voltage 220/230V ac 15 mA
Power supply voltage 24V ac 50 mA
16 sensibility levels
2 relays in output, of which:
- the first is impulsive, with a N.O. contact
- the second is continuous, with an exchange contact N.O-N.C.
Contacts: 1 A at 24V dc
Overall dimensions: L92 H45 D140 mm.

OVERALL DIMENSIONS