The seven jumper blocks on the PCI bus 14 bit data
acquisition adapter must be configured correctly in accordance with the
operating system you are using.
JP1 (Jumper 1)
Determines AD526 (gain control factor) is used.
JP2 (Jumper 2)
Determines AD526 (gain control factor) is used.
JP3 (Jumper 3)
Determine A/D voltage range.
JP4 (Jumper 4)
Determines
D/A voltage range for channel 1.
JP5 (Jumper 5)
Determines
D/A voltage range for channel 2.
JP6 (Jumper 6)
Determines unipolar or bipolar for D/A channel 1.
JP7 (Jumper 7)
Determines unipolar or bipolar for D/A channel 2.
SW1 (Switch 1)
Identifies card number.
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1. |
I/O Port Address
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The plug and play features set I/O port
address automatically, please refer the device manager of control panel to get base port
address of this adapter. |
2. |
Voltage Range of D/A Channel |
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JP4 is used to select a range of output
voltage for D/A channel 1, and JP5 is used to select a range of output
voltage for D/A channel 2. JP6 is used to select unipolar or bipolar of
D/A channel 1, and JP7 is used to select unipolar or bipolar of D/A
channel 2.
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3. |
Voltage Range of A/D Channel
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JP3 is used to select input voltage range for
A/D channel. There are several kinds of A/D chip can be plug in
adapter. For different A/D chip, the voltage range and
unipolar/bipolar setting are difference.
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(1)
For AD7899AR-1 chip
Voltage range : -5V to +5V
or –10V to +10V +/-2LSB
Temperature : -40 to 85C
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(2)
For AD7899AR-2 chip
Voltage range : 0V to +2.5V
or 0V to +5V +/-2LSB
Temperature : -40 to 85C
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(3)
For AD7899AR-3 chip
Voltage range : -2.5V to
+2.5V +/-2LSB
Temperature : -40 to 85C
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4. |
Input Mode for AD7899
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The JP2
is used to adjust input offset of AD7899. Setting the jumper to pin 2
and pin 3 will ground the input value (0V), so the data that will be
converted should also be 0.
Shorting jumper to pin 1
and pin 2 will make use of the channel inputs to be read and converted.
It is the normal input mode.
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5. |
Programmable Gain Control Factor (AD526)
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The JP1 is used to select programmable gain
control factor, when not short the jumper, it enable AD526, otherwise
short the pin means no AD526 work (can not control gain control factor).
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6.
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Card Identifier
The switch is used to identify card number, default setting is card 15,
and there are two methods to set the card number:
a. PnP mode
Just plug in PCI bus 12 bit data acquistion adapter into PCI slot, the PCI BIOS will allocate I/O address to each adapter automatically and assign card number start from 0 to each adapter. You may set any card number at PnP mode, and you need use software tools to distinguish port id. Almost all of the operating systems run at PnP mode..
b. manual mode
Set card number by card identifier switch, the PCI BIOS will assign
pre-allocated I/O address to each adapter. Please set different card
number to each adapter (do not duplicate card number setting).
The card number starts from 0 to 15.
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Before adjust your D/A voltage
offset, please run PCI14ADV00.EXE program under MS/DOS, then select
calibration function as follows.
VR1 is used to adjust the D/A channel 1 offset voltage, and VR2 is used
to adjust the D/A channel 2 offset voltage. In the following, we
describe offset adjust.
To adjust D/A channel 1 offset voltage, please follow the step shown in
the below:
Step 1: for min voltage, short pin 2 and pin 3 of JP4, and pin 2 and
pin 3 of JP6, then adjust VR3 to let J1-15 output voltage to –10V. If
the error rate more than 1.2mV, please enter step 2 to adjust VR1 for
offset voltage.
Step 2: for middle voltage, short pin 2 and pin 3 of JP4, and pin 2 and
pin 3 of JP6, then adjust VR1 to let J1-15 output voltage to 1.2mV.
Step 3: for max voltage, short pin 2 and pin 3 of JP4, and pin 2 and
pin 3 of JP6, then adjust VR3 to let J1-15 output voltage to 10V. If
the error rate more than 1.2mV, please enter step 2 to adjust VR1 for
offset voltage.
To adjust D/A channel 2 offset voltage, please follow the step shown in
the below:
Step 1: for min voltage, short pin 2 and pin 3 of JP5, and pin 2 and
pin 3 of JP7, then adjust VR4 to let J1-3 output voltage to –10V. If
the error rate more than 1.2mV, please enter step 2 to adjust VR2 for
offset voltage.
Step 2: for middle voltage, short pin 2 and pin 3 of JP5, and pin 2 and
pin 3 of JP7, then adjust VR2 to let J1-3 output voltage to 1.2mV.
Step 3: for max voltage, short pin 2 and pin 3 of JP5, and pin 2 and
pin 3 of JP7, then adjust VR4 to let J1-15 output voltage to 10V. If
the error rate more than 1.2mV, please enter step 2 to adjust VR2 for
offset voltage.
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