Omega Vehicle Security CCT-05 Series - Manual (Page 6)

3 2 1
4 5 6
7
9
8
10
PT1
Fine gain
adjust PT2
Trigger
adjust
SELECTOR A
FIG. 8
The frequency ranges are interpreted as follow : Range A (0 to 40/70 Hz.) which means that the
minimum range is from 0 to 40 Hz, and the maximum range from 0 to 70 Hz. The high level of the
signal output can be adjusted for any value between 40 to 70 Hz.
SELECTOR B
SIGNAL INPUT RANGE SELECTION
FIG.5
The signal conditioner provides two different analog output
signals, both proportional to the signal input.
Output in Current : 4 to 20 mA, terminals 9 - 10
Output in Voltage : 0 to 10 Vdc, terminals 11 - 12
Do not use both outputs simultaneously. Only one selection
can be made.
The side label shows which one is selected.
SIGNAL OUTPUT module MS
CHANGING THE SIGNAL OUTPUT
All signal conditioners are delivered as a standard version, with the analog output selected as
4 to 20 mA, unless specified otherwise. To select a 0 to 10 V output, remove jumpers E and
F as shown in Figure 6. Other non-standard output voltage and current ranges may be obtained
by adding and/or replacing resistors given in Tables 2 and 3.
R18
R29
R30
R24 R25 R31 R32
E F
FIG.6
Replace or add the indicated
resistors with the values shown
in Tables 2 and 3 for the desired
output.
Output Value in K Ω for :
in V. R29 R30 R31 R32
±10 49.9 ----- 200 ----
0 to 1 ----- ----- 11 100
0 to 5 ----- ----- 100 100
1 to 5 ----- 100 66.5 100
NON STANDARD OUTPUT
CURRENTS
TABLE 2 TABLE 3
NON STANDARD OUTPUT
VOLTAGES
8 5
ADJUSTMENT AND CALIBRATION PROCEDURE
1. When input and output signal values are determined, remove the conditioner case. (Fig.2)
2. Check on the "MA" module, if the selected power supply is correct. (Table 1).
3. Select on the input board the desired Frequency range, according to Table 5, using
jumpers "1", "2", "3", "4", "5" and "6".( Fig. 8).
Set jumpers "7" to "10", for the corresponding signal type (Table 4).
Select on the "MS" output module the desired output (voltage or current), using jumpers
"E" and "F". (Fig. 6).
4. Connect a pulse generator to the conditioner input terminals 5 and 6
5. Connect a digital multimeter to the signal output terminals : 11 and 12 for Voltage output.
: 9 and 10 for Current output.
6. Power up the conditioner with the appropriate power supply.
7. Adjust the pulse generator until it generates the low signal level.
8. Turn the "ZERO" trimmer (P1), located on the "ME" input module, until the multimeter
shows the desired low signal output level. (For example: 0 Vdc).
9. Adjust the pulse generator until it generates the high signal level.
10. Turn the "GAIN" trimmer (P2), located on the "ME" input module, until the multimeter
shows the desired high output level. (For example: 10 Vdc).
11. Repeat steps 7 to 10, until the two values are correct.
Set the jumpers to the position indicated in Table 5 for each range. The jumpers are located on
the "MP" input board.
If the signal input is modified, follow the adjustment and calibration procedure.
FREQUENCY RANGE CLOSE
(Selector B) JUMPER
0 to 40/70 Hz 3
0 to 70/125 Hz 3 & 4
0 to 125/225 Hz 3 & 5
0 to 225/400 Hz 3 & 6
0 to 400/700 Hz 2
0 to 700/1250 Hz 2 & 4
0 to 1.25/2.25 KHz 2 & 5
0 to 2.25/4 KHz 2 & 6
0 to 4/7 KHz 1
0 to 7/12.5 KHz 1 & 4
0 to 12.5/22.5 KHz 1 & 5
0 to 22.5/40 KHz 1 & 6
TABLE 5
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SU
PPL
Y
/ A
L IM
EN
T A
C
IO
N
3 4 5 6
9 10 11 12 7
1
+ Lo
H i
+ - -
Output Value in Ω for :
in mA. R18 R24 R25
0 to 5 ----- 100 -----
0 to 10 ----- 49.9 -----
1 to 5 100 K 124 -----
0 to 20 ----- ------- 24.9
"-----" means "Resistor must not be installed"
Jumpers E and F : Closed only if the output is 4 to 20 mA.