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3
Introduction to the Plug-In Modules for the 34980A
Module Considerations
This section lists important items and actions that can affect the
operation of your modules.
General Considerations
Environmental Operating Conditions
These modules are designed to operate in a temperature range of 0 °C to
+55 °C with non- condensing humidity. The maximum humidity is 80% at
40 °C or higher. Do not use in locations where conductive dust or
electrolytic salt dust may be present.
These modules should be operated in an indoor environment where
temperature and humidity are controlled. Condensation can pose a
potential shock hazard. Condensation can occur when the modules are
moved from a cold to a warm environment, or if the temperature and/or
humidity of the environment changes quickly.
The following table shows maximum voltage ratings for each module.
If conditions change, ensure that condensation has evaporated and the
instrument has thermally stabilized until pollution degree 1 conditions
are restored before turning on power to the equipment.
Module
34921A
34922A
34923A
34925A
34931A
34932A
34933A
92
To reduce wear on the internal DMM relays, wire like functions on
N O TE
adjacent channels.
Pollution Degree 1 Specifications
40 channels, 300 V rms or DC, 1 A,
60 VA per channel
70 channels, 300 V rms or DC, 1 A
60 VA per channel
20/40/80 channels, 150 Vpeak, 0.5 A,
10 VA per channel
40/80 channels, 80 Vpeak, 50 mA
Dual 4x8 matrix, 300 V rms or DC,
1 A, 60 VA per channel
Dual 4x16 matrix, 300 V rms or DC,
1 A, 60 VA per channel
Dual/quad 4x8 matrix, 150 Vpeak,
0.5 A, 10 VA per channel
Pollution Degree 2 Specifications
40 channels, 100V rms or DC, 1 A,
60 VA per channel
70 channels, 100 V, 1 A,
60 VA per channel
20/40/80 channels 100 Vpeak, 0.5 A,
10 VA per channel
40/80 channels, 80 Vpeak, 50 mA
Dual 4x8 matrix, 100 V rms or DC,
1 A, 60 VA per channel
Dual 4x16 matrix, 100 V rms or DC,
1 A, 60 VA per channel
Dual/quad 4x8 matrix, 100 Vpeak,
0.5 A, 10 VA per channel
34980A User's Guide
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