14-8
IM 2553A-01EN
Item
Specifications
Immunity
Compliant standards
EN 61326-1 Table 2 (for use in industrial locations)
Influence in the immunity test environment
Within ±15% of the range setting
Test conditions
18 Ω at the resistance output range setting
All other settings are at factory default.
Cable conditions
Same as the emission cable conditions.
Environmental standard
Compliant standards
EN 50581 Monitoring and control instruments including industrial monitoring and control instruments.
1 The overvoltage category (installation category) is a value used to define the transient overvoltage condition and includes the
rated impulse withstand voltage. The overvoltage category II applies to electrical equipment that is powered through a fixed
installation, such as a switchboard.
2 Pollution degree refers to the degree of adhesion of a solid, liquid, or gas which deteriorates withstand voltage or surface
resistivity. Pollution degree 2 applies to normal indoor atmospheres (with only non-conductive pollution).
3 The measurement category of the 2553A terminals is Other (O). Do not use it to measure the main power supply or for
Measurement Categories II, III, and IV.
Measurement category O applies to measurement of circuits that are not directly connected to a main power source. This
category applies to measurement of secondary electric circuits in equipment across a transformer. The estimated transient
overvoltage that may appear at the 2553A signal input terminals is 1500 V.
Measurement category II applies to measurement of circuits, such as household electric appliances and portable electric tools,
that are connected to low-voltage installations.
Measurement category III applies to measurement of facility circuits, such as distribution boards and circuit breakers.
Measurement category IV applies to measurement of power source circuits, such as entrance cables to buildings and cable
systems, for low-voltage installations.
14.5 General Specifications
