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92 34980A User’s Guide
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.
NOTE
To reduce wear on the internal DMM relays, wire like functions on
adjacent channels.
Module Pollution Degree 1 Specifications Pollution Degree 2 Specifications
34921A 40 channels, 300 V rms or DC, 1 A,
60 VA per channel
40 channels, 100V rms or DC, 1 A,
60 VA per channel
34922A 70 channels, 300 V rms or DC, 1 A
60 VA per channel
70 channels, 100 V, 1 A,
60 VA per channel
34923A 20/40/80 channels, 150 Vpeak, 0.5 A,
10 VA per channel
20/40/80 channels 100 Vpeak, 0.5 A,
10 VA per channel
34925A 40/80 channels, 80 Vpeak, 50 mA 40/80 channels, 80 Vpeak, 50 mA
34931A Dual 4x8 matrix, 300 V rms or DC,
1 A, 60 VA per channel
Dual 4x8 matrix, 100 V rms or DC,
1 A, 60 VA per channel
34932A Dual 4x16 matrix, 300 V rms or DC,
1 A, 60 VA per channel
Dual 4x16 matrix, 100 V rms or DC,
1 A, 60 VA per channel
34933A Dual/quad 4x8 matrix, 150 Vpeak,
0.5 A, 10 VA per channel
Dual/quad 4x8 matrix, 100 Vpeak,
0.5 A, 10 VA per channel