Cloud Electronics CX2300 - 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