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 5-1). For HP ECP-series power sensors, this specification applies when zeroing is performed with the sensor input disconnected from the

POWER REF.

Table 5-1: Zero Set Specifications

Power Sensor

Zero Set

 

 

 

 

HP 8481A

±50 nW

 

 

HP 8481B

±50 μW

 

 

HP 8481D

±20 pW

 

 

HP 8481H

±5 μW

 

 

HP 8482A

±50 nW

 

 

HP 8482B

±50 μW

 

 

HP 8482H

±5 μW

 

 

HP 8483A

±50 nW

 

 

HP 8485A

±50 nW

 

 

HP 8485D

±20 pW

 

 

HP R8486A

±50 nW

 

 

HP R8486D

±30 pW

 

 

HP Q8486A

±50 nW

 

 

HP Q8486D

±30 pW

 

 

HP W8486A

±200 nW

 

 

HP 8487A

±50 nW

 

 

HP 8487D

±20 pW

 

 

HP ECP-E18A

±50 pW

 

 

HP ECP-E26A

±50 pW

 

 

5-4

HP EPM-442A User’s Guide