Table of Contents
Advertisement
MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
2-11.2 Input Filtering
The Model 482C can also be ordered with low pass or high pass Input Filters installed. Input filters are located at the
front end of the signal path, before any gain has been applied. This location may be advantageous for applications
where gain is used and there is significant signal content outside the passband which could overload the signal
conditioner. Input Filters are also factory-installable only. These Input Filters are the 477 Series of plug-in filters. The
standard models are second-order Butterworth low pass (-12 dB/octave) filters. Typical cutoff frequencies include:
The user may also define a specific cutoff frequency for the Input Filters that satisfies a specific need. Contact the
factory regarding individual requirements and model ordering code.
2-11.3 Ordering Filters
The Model 483C can be ordered with either or both Input and Output Filters using one of the model formats as shown
below. Contact the factory for pricing and delivery information. Please note that some 483C models already include
filtering, for example the 483C30 model includes a 10 kHz Output Filter (option 07). Models 483C40 and 483C41
include selectable output filters (0.1, 0.3, 1, 3, 10, 30 kHz [-3dB]).
483Cxx/yy
483Cxx/477Azz
483Cxx/yy/477Azz
Where:
xx is the specific 483C model that is being modified with filters.
yy is the Output Filter Option Number from the table above.
zz is the Input Filter Model from the table above, one supplied per channel.
Model examples include:
Model
483C30
483C40
483C41
483C30/00/477A05
483C30/477M11
483C50/477A10
1
Supplied standard with base model
Input Filter
Filter Type
Model
477A01
Low Pass
477A02
Low Pass
477A03
Low Pass
477A04
Low Pass
477A05
Low Pass
477A06
Low Pass
477A07
Low Pass
477A08
Low Pass
477A09
Low Pass
477A10
Low Pass
477M03
Low Pass
Output Filters (-3 dB)
10 kHz
Selectable
Selectable
None
10 kHz
None
Cutoff Frequency
(-3 dB)
100 Hz
200 Hz
500 Hz
1 kHz
2 kHz
5 kHz
10 kHz
20 kHz
50 kHz
100 kHz
50 Hz
Input Filters (-3 dB)
1
None
1
None
1
None
2 kHz
1
2 Hz
100 kHz
9
Advertisement
Table of Contents
