General description
The OPT-1020 and OPT-1120 daughter boards provide the analog input signal
isolation for the DAQ cards.
OPT-1020
bandwidth 20kHz, isolation voltage 2.5 kV, screw terminals
OPT-1020B
bandwidth 20kHz, isolation voltage 2.5 kV, BNC connector
OPT-1120
bandwidth 120kHz, isolation voltage 1.5 kV, screw terminals
OPT-1120B
bandwidth 120kHz, isolation voltage 1.5 kV, BNC connector
If the DAQ card provides the 12V power supply voltages, the OPT-1020/1120 board
can be powered from the card; if not, external power supply must be used.
One OPT-1x20 board can be connected to the DAQ card using the CAB-2604C flat
cable and CAB-2511/2 shielded cable. If multiple OPT-1x20 boards are used, an
interconnection cables CAB-1004C and CAB-2604C (up to four boards), or
CAB-1008C and CAB-2608C (up to eight boards) are required (not included).
Entire set of boards can be connected to the DAQ cards via CAB-2511/2. Please pay
attention to the maximum current capacity of the DAQ cards power supply output,
for higher number of OPT-1x20 boards it is necessary to use external power supply.
General instructions for use
The OPT-1x20 boards is designed for DAQ&C applications and may be used only
according to the manufacturer's recommendations and precautions given in this
manual and other general standards and terms and may be used only such a way,
that its failure caused by any reason will not be dangerous to any person or property.
Installation
The OPT-1x20 boards is supplied as an unencapsulated kit intended for fastening
via three screws.
The board can be used in an environment with operating temperature -10~60 °C and
relative humidity up to 90%, noncondensing and normal levels of pollution.
Specifications
Input voltage (for processing):
±11 V max.
Overvoltage protection:
±24 V
Input impedance:
1 MOhm
(±1 %)
Selectable gain:
1x, 10x
(via on-board jumper)
Bandwidth (-3 dB, signal 7 V
AC
):
0÷20 kHz typ.
(all OPT-1020 version)
0÷120 kHz typ.
(all OPT-1120 version)
Nonlinearity:
±0,05% max.
(±0,025 typ.)
Isolation voltage (see note below):
2.5 kV
AC
/ 3.5 kV
DC
(OPT-1020H only)
1.5 kV
AC
/ 2 kV
DC
(all other version)
Power supply:
+10.8~12.6 V
DC
(240 mA max.)
Recommended cable length:
2 m max.
Dimensions of board:
102 x 49 mm
Mounting hole spacing:
94 x 42 mm
Mounting hole diameter:
3.5 mm
Note:
"AC" indicates the rms value of a 50 Hz AC harmonic signal.
Configuration jumpers
JP1
jumper for input range configuration, resp. gain of input amplifier
JP2
jumper for configuration of OPT-1x20 output signal routing to the DAQ card
input (only one OPT-1x20 board can be connected to the card input)
JP3/4
jumpers for selecting of power supply (see picture above)
P1
potentiometer for precise gain adjustment
P2
potentiometer for precise offset adjustment
Pin assigment of connector PFL26 (J3), resp. cable CAB-2511 to the DAQ card
PFL26
D-Sub 25
signal
PFL26
D-Sub 25
signal
1
- - -
AGND
2
13
AGND
3 25 AIN0
4 12 AGND
5 24 AIN1
6 11 AGND
7 23 AIN2
8 10 AGND
9 22 AIN3
10
9
AGND
11 21
AIN4
12 8
AGND
13 20
AIN5
14 7
AGND
15 19
AIN6
16 6
AGND
17 18
AIN7
18 5
AGND
19
17
- - -
20
4
- - -
21
16
- - -
22
3
- - -
23
15
GND (power supply) 24
2
GND (power supply)
25
14
+12V (from card)
26
1
reserved
Pin assigment of connector PFL10 (J4)
PFL10
signal
1, 2, 3, 4
power supply 12V (+5%, -10%), positive signal
5, 6
unused
7, 8, 9, 10
power supply 12V (+5%, -10%), negative signal
Jumpers JP3/JP4 must be removed before connecting an external power supply.
JP1
AIN7 . . . . AIN0
J3
J1
J4
JP2
JP3/JP4
gain 1x
P1
P2
+IN
-IN
pin 1
pin 1
gain 10x
power supply from DAQ card
power supply from an external
source via J4 connector
DAQ card input selection
