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Specifications
1–12
WFM 90 and WFM 91 Service Manual
Table 1–10: Safety/EMI
Category Description
Certifications REQ: Designed to meet or exceed:
ANSI/ISA S82 – Safety Standard for Electrical and Electronic Test, Measur-
ing, Controlling, and Related Equipment.
CAN/CSA C22.2 No. 1010.1-92 – Safety Requirements for Electrical Equip-
ment for Measurement, Control, and Laboratory Use.
IEC1010-1 – Safety Requirements for Electrical Equipment for Measure-
ment, Control, and Laboratory Use (1990).
UL3111 – Standard for Electrical Measuring and Test Equipment.
EMI Compliance REQ: Designed to meet or exceed:
U.S.: FCC 47 CFR Part 15, Subpart B, Class A.
EC Declaration of Conformity Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility.
Compliance was demonstrated to the following specifications as listed in the
Official Journal of the European Communities:
EN 50081-1 Emissions:
EN 55022 Class B Radiated and Conducted Emissions
EN 50082-1 Immunity:
IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagnetic Field Immunity
IEC 801-4 Electrical Fast Transient/Burst Immunity