Accuracy; Zero Set Specifications - HP EPM E4418A Service Manual

Specifications
Power Meter Specifications

Accuracy

Instrumentation
Absolute: ± 0.02 dB (Logarithmic) or ± 0.5% (Linear). (Refer to the power
sensor linearity specification in your power sensor manual to assess
overall system accuracy.)
Relative: ± 0.04 dB (Logarithmic) or ± 1.0% (Linear). (Refer to the power
sensor linearity specification in your power sensor manual to assess
overall system accuracy.)
Zero Set (digital settability of zero): Power sensor dependent (refer to
Table 1-1). For HP ECP-series power sensors, this specification applies
when zeroing is performed with the sensor input disconnected from the
POWER REF.
Table 1-1: Zero Set Specifications
Power Sensor
HP 8481A
HP 8481B
HP 8481D
HP 8481H
HP 8482A
HP 8482B
HP 8482H
HP 8483A
HP 8485A
HP 8485D
HP R8486A
HP R8486D
HP Q8486A
HP Q8486D
HP W8486A
HP 8487A
HP 8487D
HP ECP-E18A
HP ECP-E26A
1-4
Zero Set
± 50 nW
± 50 µ W
± 20 pW
± 5 µ W
± 50 nW
± 50 µ W
± 5 µ W
± 50 nW
± 50 nW
± 20 pW
± 50 nW
± 30 pW
± 50 nW
± 30 pW
± 200 nW
± 50 nW
± 20 pW
± 50 pW
± 50 pW
HP EPM-441A/442A Service Guide