Teac LX Series, Instruction Manual

Page: 62 / 148

Input Amp Settings
4-6
PA Amp AR-LXPA1/PA3
Two types of the PA amps for a voltage output accelerometer input are available for the LX series.
<PA-8> is shown at the
Slot
tab for the AR-LXPA1.
<PA 3 -8> is shown at the
Slot
tab for the AR-LXPA 3 .
The AR-LXPA 3 is an amp eq/- 50 V input range and A and C weighting filters addition to the
functions that the AR-LXDC supports.
See Section 6 for the specifications.
Cautions on Using PA Amp
z
Calibration
It is suggested to use 0.01 V range of the LX PA amp after turning on the power for 10 minutes or more, and
then executing manual calibration.
In order to execute the manual calibration for precisely measurement, click
button on the toolbar
of the LX Navi. Also it is recommended to use the balanced input mode for precisely measurement.
z
Input Connection and Grounding
When using many sensors or circuit signals of operations powered by a battery:
Input Mode: Balanced (Bal) mode
Whenever possible, connect the LX frame ground (FG) to ground.
When using circuit signals (AC, ICP, DC) of operations powered by an AC power source:
Input Mode: Balanced (Bal) mode
Always connect the frame ground (FG) of the input signal source and the LX frame ground (FG) to ground.
GND
FG
Vs
-
+
+
-
LX Main Unit
AR-LXPA
GND
FG
Vs
-
+
+
-
LX Main Unit
AR-LXPA
GND