Agilent Technologies 8163A Manual page 408

Error Messages
error message
description
test value
action
408
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E1x081: TEC current to temperature mismatch
If the TEC temperature difference does not correspond to the
measured Peltier current this test will fail
x
Verify whether the module is operated within the specified ambi-
ent temperature. If the failure persists, please return the unit to
your local service center for repair.
Powermeters & Interface Modules with Optical Head
refers to the module channel tested
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition