50
4. To clean external plastic or rubber parts use only a cloth moistened with:
• Ethyl Alcohol (pure or denatured) (C
2
H
5
OH) or
• Isopropyl Alcohol (pure or denatured) ([CH
3
]
2
CHOH) or
•Water (H
2
O)
• Always use the mildest means available.
5. Verify that there are no loose terminals.
6. Before re-inserting the instrument in its case, be sure that it is perfectly dry.
7. Re-insert the instrument and turn it ON.
11. NORMATIVE REFERENCES
UL 94: Tests for flammability of plastic materials for parts in devices and appliances.
CEI 70-1 (IEC 529): Degrees of protection provided by enclosures. (IP Code)
Nema 250-1991: Enclosures for electrical equipment. (1000 Volt maximum)
DIN 43700: Measurements and control instruments for panel mounting: Nominal front and
cut-out dimensions.
EN 61010-1: Safety requirements for electrical equipment for measurements, control and
laboratory use. Part 1: General requirements
EN 50081-2: Electromagnetic compatibility - Generic emission standard - Part 2 Industrial
environment
EN 55011: Limits and methods of measurement of radio disturbance characteristics of
industrial, scientific and medical (ISM) radio frequency equipment.
EN 50082-2: Electromagnetic compatibility - Part 2 -Industrial environment
ENV50140: Electromagnetic compatibility - Basic immunity standard - Radiated radio-
frequency electromagnetic field - Immunity test
IEC 1000-4-2: Electromagnetic compatibility (EMC) - Part 4: Testing and measurement
techniques - Section 2: Electrostatic discharge immunity test
EN 610004-8: Electromagnetic compatibility (EMC) - Part 4: Testing and measurement
techniques -Section 8: Power frequency magnetic field immunity test