6how to change the frequency of the filter card, 01 table of resistor values for the filter card – Cloud Electronics CX2300 User Manual
Page 10

CX2300 I
NSTALLATION AND OPERATION MANUAL
9
6
How to change the frequency of the filter card.
The frequency of the filter cards supplied with the unit will probably have been specified
at the time of ordering. If the frequency requires to be changed, please refer to the table
of resistor values in section 6.01. The filter card has a total of 24 resistors fitted but for
some frequencies not all 24 are required to be fitted.
It is important to make a note of the frequency on the card for future reference.
6.01
Table of resistor values for the filter card
Low Pass
High Pass
Freq
R1 R3 R5
R20 22 24
R2 R4 R6
R19 21 23
R9 R16
R10 R15
R11 R18
R12 R17
R7 R14
R8 R13
40Hz
No Card
No Card
No Card
No Card
No Card
No Card
No Card
No Card
50Hz
1M6
2M4
1M2
-----
620k
1M5
8M2
-----
60Hz
910k
1M
1M2
1M2
220K
6M8
10M
70Hz
750k
560k
620k
1M1
220k
430k
5M1
5M6
80Hz
240k
-----
300k
-----
110k
-----
2M
-----
90Hz
330k
470k
240k
-----
130k
270k
1M6
-----
100Hz
160k
-----
200k
-----
110k
220k
2M4
3M
110Hz
220k
360k
330k
360k
120k
130k
2M2
2M4
120Hz
120k
-----
150k
-----
110k
110k
1M
-----
125Hz
180k
300k
270k
300k
91k
120k
1M8
2M
130Hz
150k
360k
240k
300k
82k
120k
1M6
2M
140Hz
240k
160k
120k
-----
62k
150k
1M6
1M6
150Hz
130k
270k
110k
-----
62k
110k
2M7
1M
160Hz
160k
160k
100k
-----
62k
91k
1M2
1M5
170Hz
110k
220k
160k
220k
62k
75k
620k
-----
175Hz
160k
130k
160k
200k
62k
68k
1M1
1M3
180Hz
68k
-----
150k
200k
51k
82k
1M1
1M2
190Hz
110k
150k
160k
160k
56k
62k
910k
1M3
200Hz
120k
120k
150k
150k
43k
75k
1M
1M
210Hz
56k
-----
110k
200k
39k
75k
470k
-----
220Hz
130k
91k
120k
150k
47k
51k
750k
1M1
225Hz
120k
91k
110k
160k
39k
62k
430k
-----
230Hz
51k
-----
110k
150k
30k
100k
680k
1M1
240Hz
91k
100k
120k
120k
22k
-----
620k
1M1
250Hz
91k
91k
110k
120k
33k
56k
620k
1M
260Hz
68k
120k
100k
120k
20k
-----
510k
1M3