1
DCLDD1x0xx
Manual
revision 1.0 30.10.2013
1. SAFETY INSTRUCTIONS
2. GENERAL DESCRIPTION
3. TECHNICAL FEATURES
4. INSTALLATION AND SCHEMES
5. FUNCTIONS
6. MAINTENANCE
7. CALIBRATION
8. ABOUT THE OPERATING INSTRUCTIONS
1 SAFETY INSTRUCTIONS
A)Keep these Operating Instructions in a place where they can always be
easily consulted by the operator or by
maintenance personnel.
B)Before making an intervention or connection of any kind, make sure that
the mains are disconnected both from
the instrument and from any device connected to it.
C)Caution, there may be hot components inside the plastic instrument container.
D)No user-serviceable parts are inside the plastic instrument container.
E)DTI products and any other device connected to them must be installed in compliance with the safety
regulations in force.
F)Make sure that, whenever a transformer for instrument power supply is required, it complies with the safety
regulations in force.
G)DTI products are designed and manufactured in compliance with the safety regulations in force. Nevertheless, if
our products are not installed in accordance with the Safety Instructions, as well as the indications given in these
Operating Instructions, then this may cause a reduction of the safety level of our products. Furthermore, the
ambient operating conditions given in our technical data must be complied by, and in any case absolutely avoid:
water condensation or excessive humidity; exposure to steam, corrosive - or toxic gases, contact with any type of
liquid, and exposure to shocks or to extreme vibrations. Not respecting the above indications could cause
malfunctioning and unpredictable consequences, e.g., in the worst cases malfunctions that could cause dangerous
electrical discharges on probes or other parts.
H)DTI products are guaranteed for a specific level of immunity against electromagnetic disturbances in
compliance with EC regulations. We would like to call to mind that electromagnetic disturbances can be either
irradiated and/or conducted. By irradiated electromagnetic disturbances we recommend to screen the
instruments with a metallic screen connected to ground. To eliminate, or at least reduce conducted
electromagnetic disturbances, that do not only propagate through the power supply, but also through probes or
connected loads, we recommend to carry out the electrical wiring according to the indications given in these
Operating Instructions. lf necessary, use filters suitable for specific applications and for the type of disturbances
detected.
I)lf probes are to be used in contact with foodstuffs, make sure that the employed type of probe is in compliance
with the local sanitary / health regulations.
J)DTI products do not provide any type of protection for the connected loads against: short-circuits, overcurrent
or overvoltage, excessive temperature etc., that must therefore be protected by suitable means (such as fuses,
thermo-magnetic circuit breakers, thermal protections,etc.). At any rate the electrical power lines that (directly or
through a transformer) supply an DTI product and any other device connected to it, must be manufactured in
compliance with theregulations in force.
K)When incorporating an DTI product in other devices, where any malfunction whatsoever of the DTI product
could cause a form of risk to persons, animals or things, it is ABSOLUTELY MANDATORY to provide a suitable
safety device, other than the DTI product, that automatically starts operating in case of a failure.
L)DTI products cannot be used as critical components in life supportdevices or systems without an expressly
written approval of the Managing Director of DTI.
2 GENERAL DESCRIPTION
