NF CA5350, Инструкция по эксплуатации

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4.3 Setting DC Bias Voltage
CA5350 4-6
4.3 Setting DC Bias Voltage
The device is equipped with the bias voltage source of maximum ±8V/±2mA capacity
that can be used for sensor that required bias voltage.
For the connecting to sensors

“3.4 I/O Connection”
ON/OFF of DC bias voltage is set from the Menu
VOLTAGE BIAS
.
V O L T A G E S B I A S
S O N * O F F
Use the cursor keys
◀ ， ▶
to select
ON
/
OFF
, and press the
ENTER
key for changing
the settings.
Selecting
ON
will show the menu for setting the bias voltage value.
V O L T A G E S B I A S
S V A L U E S + 2 . 3 4 5 V
Setting range is -8.000V ~ +8.000V and setting resolution is 0.001V (1mV). The above
figure is an example where underline cursor is displayed below the digit of 0.1V.
Numerical value of the digit selected with underline cursor can be increased or
decreased in one step by operating the
▴ ， ▾
keys or by operating the knob.
Changing the numerical value will immediately change the voltage.
In the bias output terminal (
INVERTING BIAS OUTPUT
), voltage of reversed polarity
than the set voltage will be output. Electric potential of
CURRENT INPUT
is maintained
almost 0V by current-to-voltage converter section. Therefore, the difference in electric
potential applied to sensor will be same as the voltage set in DC bias voltage.
“Figure 4-3 Connecting to DC bias voltage”
is electric potential and potential
difference in electric potential of each part when DC bias voltage is set to +1.2V.
フィルタ部へ
-
+
I/V GAIN
電流サプレッション，
入力切替などは省略
CURRENT INPUT
INVERTING
BIAS OUTPUT
DCバイアス電圧
設定：+1.2V
(-1.2V)
(0V)
+1.2V
センサ
Figure 4-3 Connecting to DC bias voltage
Sensor
To Filter
DC bias voltage
setting: +1.2V
Current suppression, input
select, etc. are omitted.