1.- IMPORTANT SAFETY CONSIDERATIONS
INSTALLATION
PRECAUTIONS.-
The installation and the future use of this unit must be done by suitable qualified per- sonnel. The unit has
not AC (mains) switch, it will be in op- eration as soon as power is connected.
The installation must incorporate an external main switch.
The unit has a protection fuse incorporated on the AC socket, if it is necessary to change or replace, use the
200 mA when the unit is operating at 230 Vac 400 mA when the unit is operating at 115 Vac.
Install also the necessary devices to protect the operator and the process when using the unit to control a machine or process where injury to personnel or damage to equipment or process, may occur as a result of failure of the unit. See paragraph 8, WIRING.
SAFETY PRESCRIPTIONS.-
The unit has been designed and tested under EN
signal changes or connections when power is applied to the unit. Make signal connections before power is applied and, if reconnection is required, discon- nect the AC (mains) power before such wiring is attempted.
Install the unit in places with a good ventilation to avoid the excessive heat- ing. And far from electrical noise source or magnetic field generators such as
power relays, electrical motors, speed controls etc...
The unit cannot be installed in open places. Do not use until the installation is finished.
SAFETY CONSIDERATIONS
PRESCRIPTIONS.-
Before starting any operation of adjustment, replacement, maintenance or repair, the unit must be disconnected from any kind of power supply.
Keep the unit clean , to assure good functioning and performance. Use for it a clean and humid rag. Do not use for the frontal lens abrasive products, solvents, alcohol, etc... because its transparence could be damaged and this may cause difficulty for a correct vision of the reading.
To prevent electrical or fire hazard, do not expose the unit to excessive moisture. Do not operate the unit in the presence of flam- mable gases or fumes, such as environment constitutes a definite 
safety hazard. The unit is designed to be mounted in a metal panel.
If the unit shows signs of damage, or is not able to show the expected measures, or has been stored in a bad conditions or a protection failure can occur, then do not attempt to operate and keep the unit out of service.
IN CASE OF FIRE
1.- Disconnect the unit from the power supply.
2.- Give the alarm according to the local rules.
3.- Switch off all the air conditioning devices.
4.- Attack the fire with carbonic snow, do not use water in any case.
POWER SUPPLY.-
The power supply must be connected to the adequate terminals (see the connection instructions). The characteristics of the power supply are showed on the label on the rear part. Please make sure that the unit is correctly connected to a power supply of the correct voltage and frequency.
Do not use other power supply otherwise permanent damage may be caused to the unit.
Do not connect the unit to power sources heavily loaded or to circuits which power loads in cycle
SIGNAL WIRING.-
Certain considerations must be given when install the signal input and control wires. If the wires are longs can act like an antenna and introduce the electrical noise to the unit, therefore :
Do not install the signal input wires in the same conduit with power lines, heaters, solenoids, SCR controls etc....and always far from
these elements.
When shielded wires are used, connect the shield to the common terminal and leave unconnected the other end of the shield and do not connect to the machine ground.
WARNING : In closed areas do not use systems with vaporized liquids.
CONNECTIONS
All wiring connections are made using
The wire cross section recommended for signal inputs is 1 mm2 and for power supply 2.5 mm2.
PANEL MOUNTING
Verify that the panel
See paragraph 12 on page 11.
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