COND SGA-A & SGA-D Manuel_EN Rev3.doc
Page 7 on 20
Rev: 03/08/2006
Filter out
X
X
X
X
X
0
↓
1
↑
1
↑
=10V Exc 0
↓
=5V Exc
Filter in
X
X
X
X
X
1
↑
0
↓
1
↑
=10V Exc 0
↓
=5V Exc
10V Exc
X
X
X
X
X
1
↑
=Filter in 1
↑
Filter out
1
↑
5V Exc
X
X
X
X
X
1
↑
=Filter in 1
↑
Filter out
0
↓
Table 3.2.
Switch settings (0 = Off 1 = On X = Don’t Care)
Important:
Low pass filtering is switched into operation by setting SW4/6 ‘ON’
↑
and SW4/7 ‘OFF’
↓
.
Reverse these settings to bypass the filter.
It should be noted that either one of these switches MUST be on but not BOTH
3.1.3.
Example :- 0-10 Volt output with no filter required.
SW4
1 2 3 4 5 6 7 8
0-10V 0
↓
1
↑
1
↑
X
X
0
↓
1
↑
X
Table 3.3.
3.2.
Output Filter Settings –Switch 3
The COND SGA incorporates a second order (-12dB/oct) low pass filter which can be switched in to improve
the performance and output signal quality in electrically noisy environments. It can also be used to reduce the
effects of high frequency fluctuations in the load or applied force to the load cell. The cut off frequency of the
filter is set by the DIP switch SW3 as illustrated in the table below
3.2.1.
Switch 3
SW3
1 2 3 4 5 6 7 8
1Hz 0
↓
0
↓
0
↓
0
↓
0
↓
0
↓
1
↑
1
↑
5Hz 1
↑
0
↓
0
↓
0
↓
0
↓
1
↑
1
↑
1
↑
10Hz 1
↑
1
↑
0
↓
0
↓
1
↑
1
↑
1
↑
1
↑
50Hz 1
↑
1
↑
1
↑
1
↑
1
↑
1
↑
1
↑
1
↑
100Hz 0
↓
0
↓
0
↓
0
↓
0
↓
0
↓
0
↓
0
↓
500Hz 1
↑
0
↓
0
↓
0
↓
0
↓
1
↑
0
↓
0
↓
800Hz see
note**
1kHz 1
↑
1
↑
0
↓
0
↓
1
↑
1
↑
0
↓
0
↓
5kHz 1
↑
1
↑
1
↑
1
↑
1
↑
1
↑
0
↓
0
↓
Table 3.4.
** Note: A SECONDARY low pass filter, with a cut off frequency of 800Hz, can be switched into the COND
SGA input by fitting a link to JP3 (see Figure 3.2)
Important: Low pass filtering is switched into operation by setting SW4/6 ‘ON’
↑
and SW4/7 ‘OFF’
↓
.
Reverse these settings to bypass the filter.
It should be noted that either one of these switches MUST be on but not BOTH
SW4
