Step 1. Setting-Up Signal Conditioning Plug-Ons; Setting Scp Gains - HP E1313A Manual

Step 1. Setting-up Signal Conditioning Plug-ons

Setting SCP Gains

Notes:
70 Using the HP E1313/E1413
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This step does not apply to non-programmable Signal Conditioning Plug-ons
such as the HP E1501 Direct Input SCP or the HP E1502 Low Pass Filter SCP.
The gain command for programmable amplifiers is
INPut:GAIN < gain >,(@<
The gain selections provided by the SCP can be assigned to any channel
individually or in groups. Send a separate command for each frequency
selection. An example for the HP E1503 Programmable Filter/Gain SCP:
To set the SCP gain to 8 for channels 0, 4, 6, and 10 through 19 send:
INP:GAIN 8,(@100,104,106,110:119)
To set the SCP gain to 16 for channels 0 through 15, and to 64 for channels
16 through 23 send:
INP:GAIN 16,(@100:115)
INP:GAIN 64,(@116:123)
or to combine into a single command message:
INP:GAIN 16,(@100:115);GAIN 64,(@116:123)
1. Because of the high bandwidth of the A/D Range Amplifier, the
quietest low-level readings are attained by using the highest possible
SCP channel gain with the lowest A/D gain (higher A/D range)
setting appropriate to the measurement to be made. A/D range
setting will be discussed in the next programming step.
2. If you are going to manually set the A/D range in the next
programming step (Linking Channels to EU Conversion), you must
also take into account the SCP channel gains set in this programming
step. In general, most measurements can be made at full speed using
autorange. Autorange will choose the optimum A/D range for the
amplified signal level.
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Chapter 3