PACE Series SCPI Manual
K0472 Revision A 4-65
:SENS:PRES:FILT:LPAS:FREQ
Applicability: PACE1000, PACE5000, PACE6000
Command Syntax
:SENSe[x][:PRESsure]:FILTer:[LPASs]:FREQuency <number>
where x = 1 or 2 is the module number
(default - 1)
Parameter: <decimal> filter averaging time in seconds.
Short form: :SENS:FILT:FREQ
Function: Used to set up the averaging component of the filter.
Default: 0
minimum 0
maximum 20
Query Syntax
:SENSe[x][:PRESsure]:FILTer:[LPASs]:FREQuency?
where x = 1 or 2 is the module number
(default - 1)
Short form: :SENS:FILT:FREQ?
Function: Ask for filter average parameter.
Response: Decimal number corresponding to filter average time in seconds.
Description
A digital low pass filter can be applied to the pressure reading. This is a first order low pass
filter, the time constant depends on the value set by this command.
Note:
The decimal number used by the command and query does not represent frequency even
though ‘FREQ’ is used.
Example
:SENS:PRES:FILT?
TX> :SENS:PRES:FILT?
RX> :SENS:PRES:FILT:LPAS:STAT 0
It can be set to another value, such as:
TX> :SENS:PRES:FILT:LPAS:FREQ 1.76
TX> :SENS:PRES:FILT:LPAS:FREQ?
RX> :SENS:PRES:FILT:LPAS:FREQ 1.7600000
:SENS:PRES:FILT:LPAS:FREQ
TX> :SENS:PRES:FILT:LPAS:FREQ?
RX> :SENS:PRES:FILT:LPAS:FREQ 2.0000000
The current setting for low-pass filter’s time
constant is 2 seconds.
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