Camlogic PFG-06 Installation And Maintenance

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S.a.s. di Guazzetti Giovanni & C.
COSTRUZIONI MECCANICHE ELETTRICHE
Installation and Maintenance Rules for:
Capacitive level gauges PFG-06
PFG-06 - PFG-06/TC - PFG-06/F
STANDARD FEATURES
The PFG-06 level gauge is made in compliance with the regulations in force in the European Union and specifically with:
- Casing in LATIOHM 62-03 PD01 G/20. IP65 protection.
- Electrical construction in compliance with Directive 2013/35/EU on low-voltage electrical material and Directive 2014/30/EU
on electromagnetic compatibility.
- Noise level measured in open field: zero.
-
Envisaged power supplies: 110/220 V. 50/60 Hz - 24/48 V. 50/60 Hz - 24 V.c.c.
-
Use contact capacity: 8 A. a 250 V.c.a.
- Operating temperature: from -20 to +70 °C.
-
Maximum pressure: 1.1 bar.
SAFETY RULES
All the appropriate safety precautions must be taken when electrically operated equipment is used, in order to reduce
the risk of fire outbreaks, electric shock and injuries to people.
- Keep the work zone clean and orderly. Accidents are more likely to occur in untidy areas and environment.
- Before beginning to work make sure that the level gauge is in perfect condition. Damaged or broken parts must be
repaired or replaced by competent personnel authorized by the Manufacturer.
- All verifications, inspections, cleaning and maintenance operations, part changes or replacements must be carried out
with the level gauge disconnected and the plug removed from the power socket.
- It is absolutely forbidden for children, unauthorized and/or inexpert persons to touch or use the level gauge.
- Make sure that the electricity system complies with the laws in force. Make sure that the earthling is efficiently connected
when the instrument is installed. Check to be sure that the power socket is suitable, that it complies with the laws in
force and that it has a build in automatic protection circuit-breaker.
- The level gauge must never be stopped by detaching the plug from the power socket. Never use the cable to pull the
plug from the socket.
- To screw or unscrew the lid, use a tool to be positioned between the proper dents to exercise the necessary strength.
- Periodically check to be sure that the cable is in a perfect condition and replace it if damage is discovered. This operation
must only be carried out by competent and authorized persons. Only use cables of the permitted type and marked.
- Protect the cable from high temperatures, lubricants and sharp edges. Do not twist or knot the cable. Do not allow
children or unauthorized persons to touch the cable when the instrument is plugged in.
OPERATION
Operation of the capacitive level gauge PFG-06 is based on the capacity variation to
which the sensor is subjected by immersion or when near any material, whether this
is or is not a conductor, granular or in powder form.
The sensitivity regulation trimmer (Fig. 1) allow the response of the sensor to be
adapted to the characteristic of the material to be checked. Turn clockwise to increase
and counterclockwise to decrease the sensitivity.
The activation field sensor varies from 0 to 25 mm.
Led 1 and Led 2 on the power and wiring printed circuit board (Fig.1) indicate the
commutation of the output contacts of the relays.
The wiring plate (Fig. 2) placed on the inside of the level gauge lid, shows the position
of the power connections and the resting position of the relays when not powered.
With power connection and a level of the material lower than the probe position of
PFG-06, there is commutation of the R2 relay contacts, indicated by illumination of Led 2.
When the level of the material raises enough to cover the probe, there is commutation
on both relays contacts. Led 1 lights up indicating the commutation of the R1 relay
contacts, while Led 2 turns off to indicate the de-energizing of R2 relay.
Fig. 3 sums up and illustrates the position of relays contacts when the level gauge is
powered and in both cases of product presence or absence.
INSTALLATION
Before proceeding with the installation operations, visually inspect PFG-06 in order to be
sure that it has not been damaged during transport or the storage period. If this check
reveals anything irregular, the PFG-06 must be sent to CAMLogic to be restored to efficiency.
CAMLogic level gauges can be installed, in chambers or silos, in any position, on the
side or top. It is important to choose the position so that the device is not hit by the falling load, likewise taking care that
the material can move freely all around the gauge.
R
Via dell'Industria 12 - 12/A - 42025 CAVRIAGO - RE - Italy
Tel.: 0522/942641 - 0522/941172
www.camlogic.it
Led1
R2
CONTACTS POSITION
NOT
WHEN
R1
Trim
Led2
4
5
6
7
8
9
1
2
3
Fig.1
PFG-06
9
8
GROUND
7
220 VAC
3
50/60 H
Z
POWERED
110 VAC
2
50/60 H
Z
6
1
COMMON
5
4
Fig.2
01701 25.12 - Rev. 01